750 MHz, 16 × 16 Analog Crosspoint Switch ADV3226/ADV3227
FEATURES
16 × 16 high speed, nonblocking switch array Pinout and functionally equivalent to the AD8114/AD8115 Complete solution Buffered inputs Programmable high impedance outputs 16 output amplifiers, G = +1 (ADV3226), G = +2 (ADV3227) Drives 150 Ω loads Operates on ±5 V supplies Low power: 1.3 W Excellent ac performance −3 dB bandwidth 200 mV p-p: 820 MHz (ADV3226), 750 MHz (ADV3227) 2 V p-p: 600 MHz (ADV3226), 750 MHz (ADV3227) Slew rate: 2150 V/μs (ADV3226), 2950 V/μs (ADV3227) Serial or parallel programming of switch array 100-lead LFCSP (12 mm × 12 mm)
FUNCTIONAL BLOCK DIAGRAM
SER/PAR D0 D1 D2 D3 D4 A0 A1 A2 A3 80-BIT SHIFT REGISTER WITH 5-BIT PARALLEL LOADING 80 PARALLEL LATCH 80 DECODE 16 × 5:16 DECODERS SET INDIVIDUAL OR RESET ALL OUTPUTS TO OFF 16 DATAOUT
CLK
DATAIN UPDATE CE RESET
ADV3226/ ADV3227
256
OUTPUT BUFFER G = +1, G = +2
APPLICATIONS
Routing of high speed signals including Video (NTSC, PAL, S, SECAM, YUV, RGB) Compressed video (MPEG, wavelet) 3-level digital video (HDB3) Data communications Telecommunications
16 INPUTS
16 OUTPUTS
SWITCH MATRIX
GENERAL DESCRIPTION
The ADV3226/ADV3227 are high speed 16 × 16 analog crosspoint switch matrices. They offer a −3 dB signal bandwidth greater than 750 MHz and channel switch times of less than 20 ns with 1% settling. The ADV3226/ADV3227 include 16 independent output buffers that can be placed into a high impedance state for paralleling crosspoint outputs to prevent off channels from loading the output bus. The ADV3226 has a gain of +1 and the ADV3227 has a gain of +2. They both operate on voltage supplies of ±5 V
Figure 1.
while consuming only 118 mA (ADV3226) and 133 mA (ADV3227) of idle current. Channel switching is performed via a serial digital control that can accommodate daisy chaining of several devices or via a parallel control to allow updating of an individual output without reprogramming the entire array. The ADV3226/ADV3227 are available in the 100-lead LFCSP package over the extended industrial temperature range of −40°C to +85°C.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved.
08653-001
ADV3226/ADV3227 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics (Serial) .................................................. 5 Logic Levels ................................................................................... 5 Timing Characteristics (Parallel) ............................................... 6 Absolute Maximum Ratings............................................................ 7 Thermal Resistance ...................................................................... 7 Power Dissipation ......................................................................... 7 ESD Caution...................................................................................7 Pin Configuration and Function Descriptions..............................8 Truth Table and Logic Diagram ............................................... 10 Typical Performance Characteristics ............................................11 Circuit Diagrams ............................................................................ 20 Theory of Operation ...................................................................... 21 Applications Information .......................................................... 21 Power-On Reset .......................................................................... 22 Gain Selection ............................................................................. 22 Creating Larger Crosspoint Arrays .......................................... 23 Outline Dimensions ....................................................................... 24 Ordering Guide .......................................................................... 24
REVISION HISTORY
4/10—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
ADV3226/ADV3227 SPECIFICATIONS
VS = ±5 V, TA = +25°C, RL = 150 Ω, unless otherwise noted. Table 1.
Parameter DYNAMIC PERFORMANCE −3 dB Bandwidth Gain Flatness Propagation Delay Settling Time Slew Rate NOISE/DISTORTION PERFORMANCE Differential Gain Error Differential Phase Error Crosstalk, All Hostile Off Isolation, Input to Output IMD2 IMD3 Output 1 dB Compression Point Input Voltage Noise DC PERFORMANCE Gain Error Gain Matching Gain Temperature Coefficient OUTPUT CHARACTERISTICS Output Resistance Output Disabled Capacitance Output Leakage Current Output Voltage Range Test Conditions/Comments 200 mV p-p 2 V p-p 0.1 dB, 2 V p-p 0.5 dB, 2 V p-p, CL = 2.2 pF 2 V p-p 1%, 2 V step 2 V step, peak NTSC or PAL NTSC or PAL f = 100 MHz f = 5 MHz f = 100 MHz, one channel f = 100 MHz, RL = 100 Ω f = 500 MHz, RL = 100 Ω f = 100 MHz, RL = 100 Ω f = 500 MHz, RL = 100 Ω f = 100 MHz, RL = 100 Ω f = 500 MHz, RL = 100 Ω 0.01 MHz to 50 MHz Min ADV3226 Typ Max 820 600 130 400 0.6 3 2150 0.04 0.01 −45 −75 −80 Min ADV3227 Typ Max 750 750 60 200 0.6 3 2950 0.02 0.01 −35 −60 −75 47 22 42 14 18 9 16 1.0 1.0 0.4 16 0.2 5 2.7 1 ±3 ±2.8 55 ±5 8 ±1.5 ±1.5 2.1 2 1 1.5 1.5 Unit MHz MHz MHz MHz ns ns V/μs % Degrees dB dB dB dBm dBm dBm dBm dBm dBm nV/√Hz % % ppm/°C Ω MΩ pF μA V V mA mV μV/°C V V pF MΩ μA
16 0.1
Channel-to-channel 0.8 DC, enabled DC, disabled Output disabled No load RL = 150 Ω Short-circuit current Worst case (all configurations) No load RL = 150 Ω Any switch configuration Any switch configuration 0.2 10 2.7 1 ±3 ±2.8 55 ±5 8 ±3 ±3 2.1 2 1
INPUT CHARACTERISTICS Input Offset Voltage Input Offset Voltage Drift Input Voltage Range Input Capacitance Input Resistance Input Bias Current
Rev. 0 | Page 3 of 24
ADV3226/ADV3227
Parameter SWITCHING CHARACTERISTICS Enable/Disable Time Switching Time, 2 V Step Switching Transient (Glitch) POWER SUPPLIES Supply Current Test Conditions/Comments 50% UPDATE to 1% settling 50% UPDATE to 1% settling Min ADV3226 Typ Max 20 20 40 AVCC, outputs enabled, no load AVCC, outputs disabled AVEE, outputs enabled, no load AVEE, outputs disabled DVCC, outputs enabled, no load ±4.5 DC to 50 kHz, AVCC, AVEE f = 100 kHz, AVCC, AVEE f = 10 MHz, AVCC f = 10 MHz, AVEE f = 100 kHz, DVCC Operating (still air) Operating (still air) −40 26 110 25 110 25 8 ±5 >60 55 45 35 90 130 35 130 35 10 ±5.5 Min ADV3227 Typ Max 20 20 65 125 25 125 25 8 ±5 >60 60 40 55 80 140 35 140 35 10 ±5.5 Unit ns ns mV p-p mA mA mA mA mA V dB dB dB dB dB °C °C/W
Supply Voltage Range PSRR
±4.5
OPERATING TEMPERATURE RANGE Temperature Range θJA
+85
−40 26
+85
Rev. 0 | Page 4 of 24
ADV3226/ADV3227
TIMING CHARACTERISTICS (SERIAL)
Table 2.
Parameter Serial Data Setup Time CLK Pulse Width Serial Data Hold Time CLK Pulse Separation, Serial Mode CLK to UPDATE Delay UPDATE Pulse Width CLK to DATAOUT Valid, Serial Mode Propagation Delay, UPDATE to Switch On or Off Data Load Time, CLK = 5 MHz, Serial Mode CLK, UPDATE Rise and Fall Times RESET Time Symbol t1 t2 t3 t4 t5 t6 t7 20 1.6 50 30 Min 10 10 10 10 10 10 50 Typ Max Unit ns ns ns ns ns ns ns ns μs ns ns
Timing Diagram—Serial Mode
t2
1 CLK 0 1 DATAIN 0 OUT07 (D4) OUT07 (D3) OUT00 (D0) LOAD DATA INTO SERIAL REGISTER ON FALLING EDGE
t4
t1
t3
t5
1 = LATCHED UPDATE 0 = TRANSPARENT TRANSFER DATA FROM SERIAL REGISTER TO PARALLEL LATCHES DURING LOW LEVEL
t6
t7
DATAOUT
Figure 2. Timing Diagram, Serial Mode
LOGIC LEVELS
Table 3. Logic Levels
VIH RESET, SER/PAR, CLK, DATAIN, CE, UPDATE 2.0 V min VIL RESET,SER/PAR, CLK, DATAIN, CE, UPDATE 0.8 V max VOH DATAOUT VOL DATAOUT IIH SER/PAR, CLK, DATAIN, CE, UPDATE 2 μA max IIL SER/PAR, CLK, DATAIN, CE, UPDATE 2 μA max IIH RESET IIL RESET IOH DATAOUT IOL DATAOUT
2.4 V min
0.4 V max
2 μA max
300 μA max
3 mA min
08653-002
1 mA min
Rev. 0 | Page 5 of 24
ADV3226/ADV3227
TIMING CHARACTERISTICS (PARALLEL)
Table 4.
Parameter Parallel Data Setup Time Address Setup Time CLK Pulse Width Parallel Data Hold Time Address Hold Time CLK Pulse Separation UPDATE Pulse Width CLK, UPDATE Rise and Fall Times RESET Time 30 Symbol t1d t1a t2 t3d t3a t4 t5 Min 10 10 10 10 10 20 10 Typ Max Unit ns ns ns ns ns ns ns ns ns
50
Timing Diagram—Parallel Mode
1 CLK 0 1 A0 TO A3 0 1 D0 TO D4 0 1 = LATCHED UPDATE 0 = TRANSPARENT
08653-003
t2 t1a t1d t3a t3d
t4
t5
Figure 3. Timing Diagram, Parallel Mode
Rev. 0 | Page 6 of 24
ADV3226/ADV3227 ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter Analog Supply Voltage (AVCC − AVEE) Digital Supply Voltage (DVCC − DGND) Supply Potential Difference (AVCC − DVCC) Ground Potential Difference (AGND − DGND) Maximum Potential Difference (DVCC − AVEE) Analog Input Voltage Digital Input Voltage Exposed Paddle Voltage Output Voltage (Disabled Analog Output) Output Short-Circuit Duration Current Temperature Storage Temperature Range Operating Temperature Range Junction Temperature Lead Temperature (Soldering, 10 sec) Rating 11 V 6V ±0.5 V ±0.5 V 6V AVEE < VIN < AVCC DGND < DIN < DVCC AVEE < VIN < AVCC AVEE < VOUT < AVCC
POWER DISSIPATION
The ADV3226/ADV3227 operate with ±5 V supplies and can drive loads down to 100 Ω, resulting in a wide range of possible power dissipations. For this reason, extra care must be taken when derating the operating conditions based on ambient temperature. Packaged in the 100-lead LFCSP, the ADV3226/ADV3227 junction-to-ambient thermal impedance (θJA) is 26°C/W. For long-term reliability, the maximum allowed junction temperature of the die should not exceed 125°C; even temporarily exceeding this limit can cause a shift in parametric performance due to a change in stresses exerted on the die by the package. Exceeding a junction temperature of 150°C for an extended period can result in device failure. In Figure 4, the curve shows the range of allowed internal die power dissipation that meets these conditions over the −40°C to +85°C ambient temperature range. When using Figure 4, do not include the external load power in the maximum power calculation, but do include the load current dropped on the die output transistors.
6 TJ = 150°C
Momentary Internally limited to 55 mA −65°C to +125°C −40°C to +85°C 150°C 300°C
5
MAXIMUM POWER (W)
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
4
3
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages. Table 6. Thermal Resistance
Package Type 100-Lead LFCSP θJA 26 θJC 2.56 θJB 9.5 ψJT 0.2 ψJB 8.9 Unit °C/W
25
35
45
55
65
75
85
AMBIENT TEMPERATURE (°C)
Figure 4. Maximum Die Power Dissipation vs. Ambient Temperature
ESD CAUTION
Rev. 0 | Page 7 of 24
08653-004
2 15
ADV3226/ADV3227 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
DATAOUT SER/PAR UPDATE DATAIN RESET CLK NC NC NC NC NC NC NC NC NC CE A0 A1 A2 A3 D0 D1 D2
78
D3
77
100
99
95
89
88
87
84
93
92
82
97
96
91
90
86
85
81
80
98
94
83
79
76
D4
DVCC DGND AGND IN08 AGND IN09 AGND IN10 AGND IN11 AGND IN12 AGND IN13 AGND IN14 AGND IN15 AGND AVEE AVCC AVCC OUT15 AVEE OUT14
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 PIN 1
75 74 73 72 71 70 69 68
DVCC DGND AGND IN07 AGND IN06 AGND IN05 AGND IN04 AGND IN03 AGND IN02 AGND IN01 AGND IN00 AGND AVEE AVCC AVCC OUT00 AVEE OUT01
ADV3226/ADV3227
TOP VIEW (Not to Scale)
67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
27
31
37
38
39
42
48
49
26
33
34
44
29
30
35
36
40
41
45
46
28
32
OUT12
OUT10
OUT09
OUT08
OUT06
OUT05
43
OUT13
OUT07
OUT04
AVCC
AVCC
OUT03
47
OUT02
AVEE
AVEE
AVEE
AVEE
OUT11
AVCC
AVCC
AVCC
AVCC
AVEE
AVEE
Figure 5. Pin Configuration
Table 7. Pin Function Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Mnemonic DVCC DGND AGND IN08 AGND IN09 AGND IN10 AGND IN11 AGND IN12 AGND IN13 AGND IN14 Description Digital Positive Power Supply. Digital Ground. Analog Ground. Input Number 8. Analog Ground. Input Number 9. Analog Ground. Input Number 10. Analog Ground. Input Number 11. Analog Ground. Input Number 12. Analog Ground. Input Number 13. Analog Ground. Input Number 14. Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Rev. 0 | Page 8 of 24
Mnemonic AGND IN15 AGND AVEE AVCC AVCC OUT15 AVEE OUT14 AVCC OUT13 AVEE OUT12 AVCC OUT11 AVEE
Description Analog Ground. Input Number 15. Analog Ground. Analog Negative Supply. Analog Positive Supply Analog Positive Supply. Output Number 15. Analog Negative Supply. Output Number 14. Analog Positive Supply. Output Number 13. Analog Negative Supply. Output Number 12. Analog Positive Supply. Output Number 11. Analog Negative Supply.
08653-005
NOTES 1. NC = NO CONNECT. 2. THE EXPOSED METAL PADDLE ON THE BOTTOM OF THE LFCSP PACKAGE MUST BE SOLDERED TO PCB GROUND FOR PROPER HEAT DISSIPATION AND ALSO FOR NOISE AND MECHANICAL STRENGTH BENEFITS.
AVCC
50
ADV3226/ADV3227
Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 Mnemonic OUT10 AVCC OUT09 AVEE OUT08 AVCC OUT07 AVEE OUT06 AVCC OUT05 AVEE OUT04 AVCC OUT03 AVEE OUT02 AVCC OUT01 AVEE OUT00 AVCC AVCC AVEE AGND IN00 AGND IN01 AGND IN02 AGND IN03 AGND IN04 AGND Description Output Number 10. Analog Positive Supply. Output Number 9. Analog Negative Supply. Output Number 8. Analog Positive Supply. Output Number 7. Analog Negative Supply. Output Number 6. Analog Positive Supply. Output Number 5. Analog Negative Supply. Output Number 4. Analog Positive Supply. Output Number 3. Analog Negative Supply. Output Number 2. Analog Positive Supply. Output Number 1. Analog Negative Supply. Output Number 0. Analog Positive Supply. Analog Positive Supply. Analog Negative Supply. Analog Ground. Input Number 0. Analog Ground. Input Number 1. Analog Ground. Input Number 2. Analog Ground. Input Number 3. Analog Ground. Input Number 4. Analog Ground. Pin No. 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 to 93 94 95 96 97 98 99 100 N/A 1 Mnemonic IN05 AGND IN06 AGND IN07 AGND DGND DVCC D4 D3 D2 D1 D0 A3 A2 A1 A0 NC SER/PAR UPDATE DATAIN CLK DATAOUT CE RESET EP Description Input Number 5. Analog Ground. Input Number 6. Analog Ground. Input Number 7. Analog Ground. Digital Ground. Digital Positive Power Supply. Parallel Data Input, Output Enable. Parallel Data Input. Parallel Data Input. Parallel Data Input. Parallel Data Input. Parallel Data Input. Parallel Data Input. Parallel Data Input. Parallel Data Input. No Connect. Serial/Parallel Mode Select (Control Pin). Second Rank Write Strobe (Control Pin). Serial Data In (Control Pin). Serial Data Clock. Parallel 1st rank latch enable (control pin). Serial Data Out. Chip Enable (Control Pin). Second Rank Reset (Control Pin). Exposed Paddle. The exposed metal paddle on the bottom of the LFCSP package must be soldered to the PCB ground for proper heat dissipation and for noise and mechanical strength benefits.
1
N/A means not applicable.
Rev. 0 | Page 9 of 24
ADV3226/ADV3227
TRUTH TABLE AND LOGIC DIAGRAM
Table 8. Operation Truth Table 1
CE 1 0 UPDATE X X CLK X DATAIN X DataI 2 DATAOUT X DataI-80 RESET X X SER/PAR X 0 Description No change in logic. The data on the serial DATAIN line is loaded into the serial register. The first bit clocked into the serial register appears at DATAOUT 80 clock cycles later. The data on the parallel data lines, D0 to D4, are loaded into the 80-bit serial shift register location addressed at A0 to A3. Data in the 80-bit shift register transfers into the parallel latches that control the switch array. Latches are transparent. Asynchronous operation. All outputs are disabled. Second rank latches are cleared. Remainder of logic is unchanged.
0
X
0
D0…D4
0 X
0 X
X X
X X
N/A 3 in parallel mode 4 X X
X
1
1 0
X X
1 2
X is don’t care. DataI: serial data. 3 N/A means not applicable. 4 DATAOUT remains active in parallel mode and always reflects the state of the MSB of the serial shift register.
PARALLEL DATA (OUTPUT ENABLE) SER/PAR
S D1 S D1 DQ CLK Q D0 DQ CLK S D1 Q D0 DQ CLK S D1 Q D0 DQ CLK S D1 Q DQ D0 CLK S D1 Q D0 DQ CLK S D1 Q DQ D0 CLK S D1 Q D0 DQ CLK S D1 Q D0 DQ CLK S D1 Q D0 DQ CLK S D1 Q D0 DQ CLK S D1 Q D0 DQ CLK
D0 D1 D2 D3 D4
DATA IN (SERIAL)
Q D0
DATA OUT
CLK CE UPDATE
OUT0 EN
OUTPUT ADDRESS
OUT1 EN OUT2 EN OUT3 EN OUT4 EN OUT5 EN
A0 A1
4 TO 16 DECODER
A2 A3
OUT6 EN OUT7 EN OUT8 EN OUT9 EN OUT10 EN OUT11 EN OUT12 EN OUT13 EN OUT14 EN OUT15 EN LE D OUT0 B0 Q LE D OUT0 B1 Q LE D OUT0 B2 Q LE D OUT0 B3 Q LE D OUT0 EN CLR Q LE D OUT1 B0 Q LE D OUT14 EN CLR Q LE D OUT15 B0 Q LE D OUT15 B1 Q LE D OUT15 B2 Q LE D OUT15 B3 Q LE D OUT15 EN CLR Q
RESET (OUTPUT ENABLE) DECODE
08653-006
256 SWITCH MATRIX
16 OUTPUT ENABLE
Figure 6. Logic Diagram
Rev. 0 | Page 10 of 24
ADV3226/ADV3227 TYPICAL PERFORMANCE CHARACTERISTICS
1 0 –1 –2 –3
GAIN (dB)
–4 –5 –6 –7 –8 –9 –10 1 RL = 150Ω VOUT = 200mV p-p
08653-014
10
100 FREQUENCY (MHz)
1k
10k
1
10
100 FREQUENCY (MHz)
1k
10k
Figure 7. ADV3226 Small Signal Frequency Response
1 0 –1 –2 –3
GAIN (dB) GAIN (dB)
Figure 10. ADV3227 Small Signal Frequency Response
8 7 6 5 4 3 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10
–4 –5 –6 –7 –8 –9 –10 1 RL = 150Ω VOUT = 2V p-p
08653-015
RL = 150Ω VOUT = 2V p-p 1 10 100 FREQUENCY (MHz) 1k 10k
08653-018 08653-019
10
100 FREQUENCY (MHz)
1k
10k
Figure 8. ADV3226 Large Signal Frequency Response
6 5 4 3 2 1 0
GAIN (dB)
Figure 11. ADV3227 Large Signal Frequency Response
12
10.4pF 5.0pF
10 8 6 2.2pF 4
GAIN (dB)
10.4pF 5.0pF 2.2pF 1.2pF 0pF
–1 –2 –3 –4 –5 –6 –7 –8 –9 –10 1 RL = 150Ω VOUT = 200mV p-p 10
1.2pF 0pF
2 0 –2 –4 –6 –8 RL = 150Ω VOUT = 200mV p-p 1 10 100
100 FREQUENCY (MHz)
1k
10k
08653-016
–10
1k
10k
FREQUENCY (MHz)
Figure 9. ADV3226 Small Signal Frequency Response with Capacitive Loads
Figure 12. ADV3227 Small Signal Frequency Response, RL = 150 Ω
Rev. 0 | Page 11 of 24
08653-017
8 7 6 5 4 3 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10
GAIN (dB)
RL = 150Ω VOUT = 200mV p-p
ADV3226/ADV3227
4 3 2 1 0 –1
GAIN (dB)
14 10.4pF 5.0pF 2.2pF 12 10 8 6
GAIN (dB)
10.4pF 5.0pF 2.2pF
–2 –3 –4 –5 –6 –7 –8 –9 –10 1 RL = 150Ω VOUT = 2V p-p
1.2pF 0pF
4 2 0 –2 –4 –6 –8 RL = 150Ω VOUT = 2V p-p 1 10
1.2pF 0pF
10
100 FREQUENCY (MHz)
1k
10k
100 FREQUENCY (MHz)
1k
10k
Figure 13. ADV3226 Large Signal Frequency Response with Capacitive Loads
0.15
Figure 16. ADV3227 Large Signal Frequency Response with Capacitive Loads
0.15
0.10
0.10
0.05
VOUT (V) VOUT (V)
0.05 OUTPUT SIGNAL OUTPUT SIGNAL 0
0 INPUT SIGNAL –0.05
–0.05
INPUT SIGNAL
–0.10 RL = 150Ω VOUT = 200mV p-p
08653-021
–0.10 RL = 150Ω VOUT = 200mV p-p 8 10 TIME (ns) 12 14 16 18 20 0 2 4 6 8 10 TIME (ns) 12 14 16 18 20
08653-024 08653-025
–0.15
–0.15
0
2
4
6
Figure 14. ADV3226 Small Signal Pulse Response
1.5 OUTPUT SIGNAL 1.5
Figure 17. ADV3227 Small Signal Pulse Response
1.0
1.0
0.5
VOUT (V) VOUT (V)
0.5
0
0
OUTPUT SIGNAL
–0.5
INPUT SIGNAL
–0.5
INPUT SIGNAL
–1.0 RL = 150Ω VOUT = 2V p-p
08653-022
–1.0 RL = 150Ω VOUT = 2V p-p 6 8 10 TIME (ns) 12 14 16 18 20 –1.5 0 2 4 6 8 10 TIME (ns) 12 14 16 18 20
–1.5
0
2
4
Figure 15. ADV3226 Large Signal Pulse Response
Figure 18. ADV3227 Large Signal Pulse Response
Rev. 0 | Page 12 of 24
08653-023
08653-020
–10
ADV3226/ADV3227
2.0 1.5 1.0 0.5 PULSE: RISING EDGE SLEW RATE 3000 2500 2000
2.0 1.5 1.0
SLEW RATE (V/µs)
3000 SLEW RATE PULSE: RISING EDGE 2500 2000 1500 1000 500 0 –500 –1000 5.0
SLEW RATE (V/µs)
SLEW RATE (V/µs)
1500 1000 500 0 –500 –1000 5.0
0.5
VOUT (V)
08653-026
VOUT (V)
0 –0.5 –1.0 –1.5 –2.0
0 –0.5 –1.0 –1.5 –2.0
0
0.5
1.0
1.5
2.0
2.5 TIME (ns)
3.0
3.5
4.0
4.5
0
0.5
1.0
1.5
2.0
2.5 TIME (ns)
3.0
3.5
4.0
4.5
Figure 19. ADV3226 Rising Edge Slew Rate
2.0 SLEW RATE 1.5 1.0 0.5 0 –500
1.5 1.0
Figure 22. ADV3227 Rising Edge Slew Rate
500
2.0 500 0 –500 –1000 –1500 –2000 –2500 SLEW RATE –1.5 –2.0 –3000 –3500 5.0
SLEW RATE (V/µs)
–1000 –1500 PULSE: FALLING EDGE –2000 –2500 –3000 –3500 5.0
0.5
VOUT (V)
VOUT (V)
0 –0.5 –1.0 –1.5 –2.0
0 –0.5 –1.0
PULSE: FALLING EDGE
08653-120
0
0.5
1.0
1.5
2.0
2.5 TIME (ns)
3.0
3.5
4.0
4.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
TIME (ns)
Figure 20. ADV3226 Falling Edge Slew Rate
1.5 40 1.5
Figure 23. ADV3227 Falling Edge Slew Rate
40
1.0
OUTPUT–INPUT
30
1.0
OUTPUT–INPUT
30
OUTPUT ERROR (%)
0.5
VOUT (V)
20 OUTPUT SIGNAL
0.5
VOUT (V)
20 OUTPUT SIGNAL
0
10
0
10
–0.5
0
–0.5
0
–1.0
INPUT SIGNAL PROPAGATION DELAY NOT SHOWN
–10
–1.0
INPUT SIGNAL PROPAGATION DELAY NOT SHOWN
–10
08653-027
0
0.5
1.0
1.5 TIME (ns)
2.0
2.5
3.0
3.5
0
0.5
1.0
1.5 TIME (ns)
2.0
2.5
3.0
3.5
Figure 21. ADV3226 Settling Time
Figure 24. ADV3227 Settling Time
Rev. 0 | Page 13 of 24
08653-030
–1.5 –1.0 –0.5
–20 4.0
–1.5 –1.0 –0.5
–20 4.0
OUTPUT ERROR (%)
08653-029
08653-122
ADV3226/ADV3227
20 10 0 –10 –20
PSR (dB)
20
0 VEE AGGRESSOR
PSR (dB)
–20 VCC AGGRESSOR –40 VEE AGGRESSOR –60
–30 –40 –50 –60 –70 –80 1 10 FREQUENCY (MHz) 100 1k VCC AGGRESSOR
1
10 FREQUENCY (MHz)
100
1k
Figure 25. ADV3226 Power Supply Rejection
200 180 NOISE SPECTRAL DENSITY (nV/ Hz) 160 140 120 100 80 60 40 20
08653-032
Figure 28. ADV3227 Power Supply Rejection
200 180 NOISE SPECTRAL DENSITY (nV/ Hz) 160 140 120 100 80 60 40 20
10k
100k
1M
10M
100M
10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 26. ADV3226 Output Noise, 100 Ω Load
0 –10 –20 –30
ISOLATION (dB)
Figure 29. ADV3227 Output Noise, 100 Ω Load
0 –10 –20
ISOLATION (dB)
–30 –40 –50 –60 –70 –80
–40 –50 –60 –70 –80 –90
08653-033
1
10
100 FREQUENCY (MHz)
1k
10k
1
10
100 FREQUENCY (MHz)
1k
10k
Figure 27. ADV3226 Off Isolation
Figure 30. ADV3227 Off Isolation
Rev. 0 | Page 14 of 24
08653-036
–100
–90
08653-035
0 1k
0 1k
08653-031
08653-028
–90 0.1
–80 0.1
ADV3226/ADV3227
0 –10 –20
CROSSTALK (dB) CROSSTALK (dB)
IN3–OUT3: ENABLED CHANNEL IN2 ACTIVATED
0 –10 –20 –30 –40 –50 –60 –70 –80
08653-034
IN3–OUT3: ENABLED CHANNEL IN2 ACTIVATED
–30 –40 –50 –60 –70 –80 –90 1 10 100 1k FREQUENCY (MHz)
1
10
100
1k
FREQUENCY (MHz)
Figure 31. ADV3226 Crosstalk, One Adjacent Channel, RTO
0 –10
Figure 34. ADV3227 Crosstalk, One Adjacent Channel, RTO
20
IN3–OUT3: ENABLED CHANNEL
IN3–OUT3: ENABLED CHANNEL
0 –20
CROSSTALK (dB) CROSSTALK (dB)
–30 –40 –50 –60 –70
–20
–40
–60
–80 –80
08653-038 08653-041 08653-042
–90 1 10 100 1k FREQUENCY (MHz)
–100 1 10 100 1k FREQUENCY (MHz)
Figure 32. ADV3226 Crosstalk, All Hostile, RTO
1M 1M
Figure 35. ADV3227 Crosstalk, All Hostile, RTO
100k
100k
IMPEDANCE (Ω)
1k
IMPEDANCE (Ω)
10k
10k
1k
100
100
10
10
0.1
1
10
100
1k
10k
08653-039
1 0.01
1 0.01
0.1
1
10
100
1k
10k
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 33. ADV3226 Input Impedance
Figure 36. ADV3227 Input Impedance
Rev. 0 | Page 15 of 24
08653-037
–90
ADV3226/ADV3227
1M 1M
100k
100k
IMPEDANCE (Ω)
1k
IMPEDANCE (Ω)
08653-040
10k
10k
1k
100
100
10
10
1
10
100
1k
10k
1
10
100
1k
10k
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 37. ADV3226 Output Impedance, Disabled
100 100
Figure 40. ADV3227 Output Impedance, Disabled
IMPEDANCE (Ω)
1
IMPEDANCE (Ω)
10
10
1
08653-044
1
10 FREQUENCY (MHz)
100
1k
1
10 FREQUENCY (MHz)
100
1k
Figure 38. ADV3226 Output Impedance, Enabled
2.0 1.5 1.0 0.5
VOUT (V)
Figure 41. ADV3227 Output Impedance, Enabled
3.5 2.0 1.5 1.0 0.5
VOUT (V)
3.5 UPDATE VOUT RISING EDGE 3.0 2.5 2.0 1.5 1.0 VOUT FALLING EDGE 0.5 0 –0.5 30
UPDATE VOUT RISING EDGE
3.0 2.5 2.0 1.5 1.0 VOUT FALLING EDGE 0.5 0 –0.5 30
UPDATE (V)
0 –0.5 –1.0 –1.5 –2.0 –10
0 –0.5 –1.0 –1.5 –2.0 –10
08653-045
UPDATE (V)
08653-142
0
10 TIME (ns)
20
0
10 TIME (ns)
20
Figure 39. ADV3226 Switching Time
Figure 42. ADV3227 Switching Time
Rev. 0 | Page 16 of 24
08653-047
0.1 0.1
0.1 0.1
08653-043
1 0.1
1 0.1
ADV3226/ADV3227
20 10 0
VOUT (mV)
50 40 30 20
–10 –20 –30 –40 –50 0 5 10 15 20 25 TIME (ns) 30 35 40 45 50
VOUT (mV)
08653-046
10 0 –10 –20 –30 0 5 10 15 20 25 TIME (ns) 30 35 40 45 50
Figure 43. ADV3226 Switching Glitch
3 UPDATE 2 VOUT RISING EDGE 3.0 2.5 2.0 1.5 VOUT FALLING EDGE 1.0 0.5 –2 0 –0.5 0 10 TIME (ns) 20 30 3.5 2.0 1.5 1.0 0.5
VOUT (V)
Figure 46. ADV3227 Switching Glitch
3.5 UPDATE VOUT RISING EDGE 3.0 2.5 2.0 1.5 1.0 VOUT FALLING EDGE 0.5 0 –0.5 30
1
VOUT (V)
UPDATE (V)
0
0 –0.5 –1.0 –1.5 –2.0 –10
–1
08653-050
0
10 TIME (ns)
20
Figure 44. ADV3226 Enable Time
0.040 0.035
DIFFERENTIAL GAIN ERROR (%)
Figure 47. ADV3227 Enable Time
0.025
0.030 0.025 0.020 0.015 0.010 0.005 0
08653-051
DIFFERENTIAL GAIN ERROR (%)
0.020
0.015
0.010
0.005
0
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
INPUT DC OFFSET (V)
INPUT DC OFFSET (V)
Figure 45. ADV3226 Differential Gain Error
Figure 48. ADV3227 Differential Gain Error
Rev. 0 | Page 17 of 24
08653-054
–0.005 –0.8
–0.005 –0.8
08653-048
–3 –10
UPDATE (V)
08653-049
ADV3226/ADV3227
0.0020 DIFFERENTIAL PHASE ERROR (Degrees) DIFFERENTIAL PHASE ERROR (Degrees) 0.008 0.006 0.004 0.002 0 –0.002 –0.004 –0.006 –0.008
08653-055
08653-059 08653-060
0.0015
0.0010
0.0005
0
–0.0005
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
08653-052
–0.0010 –0.8
–0.010 –0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
INPUT DC OFFSET (V)
INPUT DC OFFSET (V)
Figure 49. ADV3226 Differential Phase Error
5 4 3 2
VOLTAGE (V)
Figure 52. ADV3227 Differential Phase Error
6
VIN = ±4.55V p-p
VIN = ±4.65V p-p
4
2
VOLTAGE (V)
1 0 –1 –2 –3 –4 –5 0 10 20 30 40 50 TIME (ns) 60 70 80 90 100 VOUT @ VIN = ±4.55V p-p
0
–2 VOUT @ VIN = ±4.65V p-p –4
08653-056
–6 0 10 20 30 40 50 TIME (ns) 60 70 80 90 100
Figure 50. ADV3226 Overdrive Recovery
25 60
Figure 53. ADV3227 Overdrive Recovery
20
THIRD-ORDER INTERCEPT (dBm)
08653-057
1dB GAIN COMPRESSION (dBm)
50
40
15
30
10
20
5
10
0 10
100 INPUT FREQUENCY (MHz)
1k
0 10
100 INPUT FREQUENCY (MHz)
1k
Figure 51. ADV3227 1 dB Gain Compression, 100 Ω Load
Figure 54. ADV3227 Third-Order Intercept, 100 Ω Load
Rev. 0 | Page 18 of 24
ADV3226/ADV3227
90 80
SECOND-ORDER INTERCEPT (dBm)
–20 –30
HD2, 10dBm
HARMONIC DISTORTION (dBc)
70 60 50 40 30 20 10
08653-058
–40 –50 –60 –70 –80 –90 –100
08653-061
HD2, 0dBm HD3, 0dBm
HD3, 10dBm
0 10
100 INPUT FREQUENCY (MHz)
1k
–110 10
100 INPUT FREQUENCY (MHz)
1k
Figure 55. ADV3227 Second-Order Intercept, 100 Ω Load
140 120 100
NUMBER OF HITS
Figure 57. ADV3227 Harmonic Distortion (Input Referred),100 Ω Load
80 60 40 20 0
–30 –25 –20 –15 –10 –5
0 COUNT
5
10
15
20
25
30
Figure 56. ADV3226 and ADV3227, Input VOS Distribution
08653-156
Rev. 0 | Page 19 of 24
ADV3226/ADV3227 CIRCUIT DIAGRAMS
INx
08653-007
DGND
Figure 58. Analog Input
Figure 61. Logic Input
OUTx OUTx
08653-010
08653-011
08653-012
2.7pF
Figure 59. Analog Output Enabled
AVCC DVCC CLK, RESET, SER/PAR, CE, UPDATE, DATAIN, DATAOUT, A[3:0]. D[4:0]
08653-013
Figure 62. Analog Output Disabled
INx, OUTx
DVCC 20kΩ RESET 1kΩ
08653-009
AGND
AGND
DGND
DGND
Figure 60. ESD Map
Figure 63. Reset Input
DVCC
DATAOUT
DGND
Figure 64. Logic Output
Rev. 0 | Page 20 of 24
08653-008
2.1pF
A[3:0], CE, CLK, D[4:0], DATAIN, SER/PAR, UPDATE
1kΩ
ADV3226/ADV3227 THEORY OF OPERATION
The ADV3226 (G = 1) and ADV3227 (G = 2) are crosspoint arrays with 16 outputs, each of which can be connected to any one of 16 inputs. Organized by output row, 16 switchable input transconductance stages are connected to each output buffer to form 16-to-1 multiplexers. There are 16 of these multiplexers, each with its inputs wired in parallel, for a total array of 256 transconductance stages forming a multicast-capable crosspoint switch. Each input is buffered and is not loaded by the outputs, simplifying the construction of larger arrays using the ADV3226 or ADV3227 as a building block. Decoding logic for each output selects one (or none) of the transconductance stages to drive the output stage. The enabled transconductance stage drives the output stage, and feedback forms a closed-loop amplifier. A mask programmable feedback network sets the closed-loop signal gain. For theADV3226, this gain is 1, and for the ADV3226, this gain is 2. The output stage of the ADV3226 or ADV3227 is designed for low differential gain and phase error when driving composite video signals. It also provides slew current for a fast pulse response when driving component video signals. Unlike many multiplexer designs, these requirements are balanced such that large signal bandwidth is very similar to small signal bandwidth. The design load is150 Ω, but provisions are made to drive loads as low as 100 Ω when on-chip power dissipation limits are not exceeded. The outputs of the ADV3226/ADV3227 can be disabled to minimize on-chip power dissipation. When disabled, there is no feedback network loading the output. This high disabled output impedance allows multiple ICs to be bussed together without additional buffering. Care must be taken to reduce output capacitance, which results in more overshoot and frequency domain peaking. A series of internal amplifiers drives internal nodes such that a wideband high impedance is presented at the disabled output, even while the output bus is under large signal swings. To keep these internal amplifiers in their linear range of operation when the outputs are disabled and driven externally, do not allow the voltage applied to them to exceed the valid output swing range for the ADV3226/ADV3227. If the disabled outputs are left floating, they may exhibit high enable glitches. If necessary, the disabled output can be kept from drifting out of range by applying an output load resistor to ground. The connection of the ADV3226/ADV3227 is controlled by a flexible TTL-compatible logic interface. Either parallel or serial loading into a first rank of latches preprograms each output. A global update signal moves the programming data into the second rank of latches, simultaneously updating all outputs. In serial mode, a serial out pin allows devices to be daisy-chained together for single pin programming of multiple ICs. A power-on reset pin is available to avoid bus conflicts by disabling all outputs. This power-on reset clears the second rank of latches but does not clear the first rank of latches. In serial mode, preprogramming individual inputs is not possible and the entire shift register needs to be flushed. To easily interface to ground referenced video signals, the ADV3226/ADV3227 operate on split ±5 V supplies. The logic inputs and output run on a single +5 V supply, but the logic inputs switch at approximately 1.6 V for compatibility with a variety of logic families. The serial output buffer is a rail-to-rail output stage with 5 mA of drive capability.
APPLICATIONS INFORMATION
The ADV3226/ADV3227 have two options for changing the programming of the crosspoint matrix. In the first option, a serial word of 80 bits can be provided, which updates the entire matrix each time the 80-bit word is shifted into the part. The second option allows for changing the programming of a single output via a parallel interface. The serial option requires fewer signals but more time (clock cycles) for changing the programming, whereas the parallel programming technique requires more signals but can change a single output at a time and requires fewer clock cycles to complete the programming.
Serial Programming
The serial programming mode uses the CE, CLK, DATAIN, UPDATE, and SER/PAR pins. The first step is to assert a low on SER/PAR to enable the serial programming mode. CE for the chip must be low to allow data to be clocked into the device. The CE signal can be used to address an individual device when devices are connected in parallel. The UPDATE signal should be high during the time that data is shifted into the serial port of the device. Although the data still shifts in when UPDATE is low, the transparent, asynchronous latches allow the shifting data to reach the matrix, which causes the matrix to try to update to every intermediate state as defined by the shifting data. The data at DATAIN is clocked in at every falling edge of CLK. A total of 80 bits must be shifted in to complete the programming. For each of the 16 outputs, there are four bits (D0 to D3) that determine the source of its input. The MSB is shifted in first. A fifth bit (D4) precedes the four input select bits and determines the enabled state of the output. If D4 is low (output disabled), the four associated bits (D0 to D3) do not matter because no input switches to that output. The most significant output address data is shifted in first, and the remaining addresses follow in sequence until the least significant output address data is shifted in. At this point, UPDATE can be taken low, which programs the device according to the
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ADV3226/ADV3227
data that was just shifted in. The update registers are asynchronous, and when UPDATE is low (and CE is low), they are transparent. If more than one ADV3226/ADV3227 device is to be serially programmed in a system, the DATAOUT signal from one device can be connected to the DATAIN of the next device to form a serial chain. Connect all of the CLK, CE, UPDATE, and SER/PAR pins in parallel and operate them as described previously in this section. The serial data is input to the DATAIN pin of the first device of the chain, and it ripples through to the last. Therefore, the data for the last device in the chain should come at the beginning of the programming sequence. The length of the programming sequence (80 bits) is multiplied by the number of devices in the chain. The first four data bits (D0 to D3) contain the information that identifies the input that is programmed to the addressed output. The fifth data bit (D4) determines the enabled state of the output. If D4 is low (output disabled), the data on D0 to D3 does not matter. After the address and data signals are established, they can be latched into the shift register by pulling the CLK signal low; however, the matrix is not programmed until the UPDATE signal is taken low. In this way, it is possible to latch in new data for several or all of the outputs first via successive negative transitions of CLK while UPDATE is held high and then have all the new data take effect when UPDATE goes low. Use this technique when programming the device for the first time after power-up when using parallel programming. In parallel mode, the CLK pin is level sensitive, whereas in serial mode, it is edge triggered.
Parallel Programming
When using the parallel programming mode, it is not necessary to reprogram the entire device when making changes to the matrix. Parallel programming allows the modification of a single output at a time. Because this takes only one CLK/UPDATE cycle, significant time savings can be realized by using parallel programming. An important consideration in using parallel programming is that the RESET signal does not reset all registers in the ADV3226/ ADV3227. When taken low, the RESET signal sets each output to the disabled state. This is helpful during power-up to ensure that two parallel outputs are not active at the same time. After initial power-up, the internal registers in the device generally contain random data, even though the RESET signal was asserted. If parallel programming is used to program one output, that output is properly programmed, but the rest of the device has a random program state depending on the internal register content at power-up. Therefore, when using parallel programming, it is essential that all outputs be programmed to a desired state after power-up to ensure that the programming matrix is always in a known state. From this point, parallel programming can be used to modify either a single output or multiple outputs at one time. Similarly, if both CE and UPDATE are taken low after initial power-up, the random power-up data in the shift register is programmed into the matrix. Therefore, to prevent programming the crosspoint into an unknown state, do not apply low logic levels to both CE and UPDATE after power is initially applied. To eliminate the possibility of programming the matrix to an unknown state, after initial power-up, program the full shift register one time to a desired state using either serial or parallel programming. To change the programming of an output via parallel programming, take the SER/PAR and UPDATE pins high, and take the CE pin low. The CLK signal should be in the high state. Place the 4-bit address of the output to be programmed on A0 to A3.
POWER-ON RESET
When powering up the ADV3226/ADV3227, it is usually desirable to have the outputs come up in the disabled state. When taken low, the RESET pin causes all outputs to be in the disabled state. However, the RESET signal does not reset all registers in the ADV3226/ADV3227. This is important when operating in the parallel programming mode. Refer to the Parallel Programming section for information about programming internal registers after power-up. Serial programming programs the entire matrix each time; therefore, no special considerations apply. Because the data in the shift register is random after power-up, it should not be used to program the matrix, or the matrix can enter unknown states. To prevent the matrix from entering unknown states, do not apply logic low signals to both CE and UPDATE initially after power-up. Instead, first load the shift register with the data and then take UPDATE low to program the device. The RESET pin has a 20 kΩ pull-up resistor to DVCC that can be used to create a simple power-up reset circuit. A capacitor from RESET to ground holds the RESET pin low for a period during which the rest of the device stabilizes. The low condition causes all of the outputs to be disabled. The capacitor then charges through the pull-up resistor to the high state, thereby allowing full programming capability of the device.
GAIN SELECTION
The 16 × 16 crosspoints come in two versions, depending on the gain of the analog circuit path. The ADV3226 device is unity gain and can be used for analog logic switching and other applications where unity gain is desired. The ADV3226 outputs have very high impedance when their outputs are disabled. The ADV3227 can be used for devices that drive a terminated cable with its outputs. This device has a built-in gain-of-2 that eliminates the need for a gain-of-2 buffer to drive a video line. Its
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ADV3226/ADV3227
high output disabled impedance minimizes signal degradation when paralleling additional outputs. The basic concept in constructing larger crosspoint arrays is to connect inputs in parallel in a horizontal direction and to wire-OR the outputs together in the vertical direction. The meaning of horizontal and vertical can best be understood by referring to Figure 65, which illustrates this concept for a 32 × 32 crosspoint array that uses four ADV3226 or ADV3227 devices.
16
CREATING LARGER CROSSPOINT ARRAYS
The ADV3226/ADV3227 are high density building blocks for creating crosspoint arrays of dimensions larger than 16 × 16. Various features, such as output disable, chip enable, and gainof-1 and gain-of-2 options, are useful for creating larger arrays. When required for customizing a crosspoint array size, they can be used with the AD8108 and AD8109, which are a pair of (unity-gain and gain-of-2) 8 × 8 video crosspoint switches, or with the AD8110 and AD8111, a pair of (unity-gain and gainof-2) 16 × 8 video crosspoint switches. The first consideration in constructing a larger crosspoint is to determine the minimum number of required devices that are required. The 16 × 16 architecture of the ADV3226/ADV3227 contains 256 points, which is a factor of 64 greater than a 4 × 1 crosspoint (or multiplexer). The benefits realized in PCB area used, power consumption, and design effort are readily apparent when compared to using multiples of these smaller 4 × 1 devices. To obtain the minimum number of required points for a nonblocking crosspoint, multiply the number of inputs by the number of outputs. Nonblocking requires that the programming of a given input to one or more outputs does not restrict the availability of that input to be a source for any other outputs. Some nonblocking crosspoint architectures require more than this minimum. In addition, there are blocking architectures that can be constructed with fewer devices than this minimum. These systems have connectivity available on a statistical basis that is determined when designing the overall system.
IN 00–15
ADV3226 OR ADV3227
16
16 16 RTERM
ADV3226 OR ADV3227
16
IN 16–31
16
ADV3226 OR ADV3227
16 16 RTERM
ADV3226 OR ADV3227
08653-062
16
16
Figure 65. A 32 × 32 Nonblocking Crosspoint Switch Array
Each input is uniquely assigned to each of the 32 inputs of the two devices and terminated appropriately. The outputs are wired-OR’ed together in pairs. Enable the output from only one wire-OR’ed pair at any given time. The device programming software must be properly written to prevent multiple connected outputs from being enabled at the same time. For a complete 32 × 32 array in a single device, refer to the AD8117 and AD8118 for high bandwidth or the ADV3200 and ADV3201 for lower bandwidth. Also available are 32 × 16 arrays in a single package: AD8104, AD8105, ADV3202, and ADV3203.
Rev. 0 | Page 23 of 24
ADV3226/ADV3227 OUTLINE DIMENSIONS
0.60 MAX 12.00 BSC SQ 0.60 MAX
75 76
0.25 0.20 0.15
100 1
PIN 1 INDICATOR
PIN 1 INDICATOR 11.75 BSC SQ
0.40 BSC EXPOSED PAD
(BOTTOM VIEW)
7.00 6.90 SQ 6.80
51 50
26
25
TOP VIEW 0.90 0.85 0.80 SEATING PLANE 12° MAX
0.70 0.65 0.60
0.50 0.40 0.30 0.05 MAX 0.01 NOM 0.20 REF
0.20 MIN
9.60 REF FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET.
06-11-2008-B
COMPLIANT TO JEDEC STANDARDS MO-220-VRRE.
Figure 66. 100-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 12 mm × 12 mm Body, Very Thin Quad (CP-100-1) Dimensions shown in millimeters
ORDERING GUIDE
Model 1 ADV3226ACPZ ADV3227ACPZ ADV3226-EVALZ ADV3227-EVALZ
1
Temperature Range −40°C to +85°C −40°C to +85°C
Package Description 100-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 100-Lead Lead Frame Chip Scale Package [LFCSP_VQ] Evaluation Board Evaluation Board
Package Option CP-100-1 CP-100-1
Z = RoHS Compliant Part.
©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08653-0-4/10(0)
Rev. 0 | Page 24 of 24
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