SGM9116
PRODUCT DESCRIPTION
The SGM9116 is a video buffer which integrates triple 6dB Gain rail-to-rail output driver and triple 3rd output reconstruction filter, it has 35MHz -3dB bandwidth and 160V/µs slew rate. SGM9116 provides improved image quality compared with passive LC filters and discrete drivers solution. Operating from single supplies ranging from +2.5V to +5.5V and sinking an ultra-low 27.5mA quiescent current, the SGM9116 is ideally suited for battery powered applications. SGM9116 can be DC-coupled or AC-coupled with input video signal, such as the output of DAC. Internal diode clamps and bias circuitry may be used if AC-coupled inputs are required. SGM9116 also integrates an internal level shift circuit which avoids sync-pulse being clipped and allows DC-coupled output. The driver in SGM9116 can drive DC or AC-coupled single (150Ω) or dual (75 Ω) loads. The SGM9116 has lead (Pb) free SOIC-8 package and ESD(HBM) reaches 8KV.
Triple, 35MHz, 3rd Order HDTV Video Filter Driver
FEATURES
• • • • • • • • • Triple 3rd order 35MHz (HD) filters Transparent input clamping 6dB output driver Gain and drive dual video load Rail-to-Rail Output Input Voltage Range Includes Ground AC or DC Coupled Inputs AC or DC Coupled Outputs Operates from 2.5 V to 5.5 V Single power supply Low Power (9.2mA/channel) 27.5 mA total Supply Current • Lead (Pb) Free SOIC-8 package
APPLICATIONS
Video amplifier Cable and Satellite set- top box Communications device Video on demand Portable and handheld product Personal video recorder DVD player HDTV Projector
BLOCK DIAGRAM
IN1
Transparent Clamp
6 dB 35MHz, 3rd order
OUT1
IN2
Transparent Clamp
6 dB 35MHz, 3rd order
OUT2
IN3
Transparent Clamp
6 dB 35MHz, 3rd order
OUT3
Shengbang Microelectronics Co, Ltd Tel: 86/451/84348461 www.sg-micro.com
REV. A
ELECTRICAL CHARACTERISTICS: VS = +5.0V
(At RL = 150Ω connected to GND, Vin=1Vpp,and CIN = 0.1µF, all outputs AC coupled with 220µF,unless otherwise noted)
SGM9116 PARAMETER CONDITION TYP +25℃
INPUT CHARACTERISTICS Output Level Shift Voltage (VOLS) Input Bias Current (IB) Input Voltage Clamp (VCLAMP) Clamp Charge Current Input Resistance (RIN) Voltage Gain ( AV) IIN = -1mA VIN = VCLAMP -100mV 0.5V < VIN < 1.0V RL = 150Ω 2.0 1.92 2.04 1.90 2.06 4.28 1.88 2.08 4.25 1.85 2.1 4.2 -4.5 -5 -15 -6.0 -16 -6.1 -19 -6.6 -22 -7.2 VIN = 0V, no load 253 327 330 340 370 mV pA mV mA MΩ V/V V/V V mA mA 2.7 5.5 58 32 2.7 5.5 57 33 2.7 5.5 56 34 V V dB mA MHz MHz dB dB V/µs % % ° ° ns dB ns ns MAX TYP MIN MIN MIN MIN MAX MIN MAX MIN MIN MAX MIN MAX TYP TYP TYP TYP TYP TYP TYP TYP TYP TYP TYP TYP TYP
MIN/MAX OVER TEMPERATURE +25℃ 0℃ to70℃ -40℃ to 85℃ -40℃ to125℃ UNITS MIN/ MAX
OUTPUT CHARACTERISTICS
Output Voltage High Swing Output Short-Circuit Current (ISC) VIN = 3V, RL = 150Ω to GND VIN = 3V, to GND through 10Ω VIN = 100mV, out short to VDD through 10Ω 4.5 -105 115 4.3 -102 103 2.5 5.5 Power Supply Rejection Ratio (PSRR) Quiescent Current (IQ) DYNAMIC PERFORMANCE ±0.1dB Bandwidth -3dB Bandwidth Filter Response Normalized Gain: fIN = 44.25MHz fIN = 74.25MHz Slew Rate Differential Gain (DG) Differential Phase (DP) Group Delay Variation (D/DT) Crosstalk (channel - to - channel) Fall Time Rise Time 20% to 80%, VIN = 1V Step, NTSC & PAL DC coupled NTSC & PAL AC coupled NTSC & PAL DC coupled NTSC & PAL AC coupled f = 400KHz, 26.5MHz at 1MHz 2.0VSTEP, 80% to 20% 2.0VSTEP, 80% to 20% -5.0 -13.5 160 0.02 0.3 0.02 0.36 1.2 -64 9.8 10.5 RL = 150Ω RL = 150Ω 11.8 35 Vs = +2.7 V to + 5.5 V VIN = 500mV, 60 27.5 58 31.5
POWER SUPPLY
Operating Voltage Range
Specifications subject to change without notice.
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SGM9116
PACKAGE/ORDERING INFORMATION
ORDER NUMBER PACKAGE DESCRIPTION TEMPERATURE RANGE PACKAGE OPTION MARKING INFORMATION
SGM9116ZS/TR SGM9116XS/TR
SO-8 SO-8
0℃ to +70℃ -40℃ to +125℃
Tape and Reel, 2500 Tape and Reel, 2500
SGM9116ZS SGM9116XS
PIN CONFIGURATIONS (Top View)
SGM9116
IN1 IN2 IN3 +VS 1 2 3 4 SO-8 8 7 6 5 OUT1 OUT2 OUT3 GND
PIN DESCRIPTION
PIN 1 2 3 4 5 6 7 8 NAME IN1 IN2 IN3 +VS GND OUT3 OUT2 OUT1 FUNCTION Video input, channel 1 Video input, channel 2 Video input, channel 3 Power supply Ground Filtered output, channel 3 Filtered output, channel 2 Filtered output, channel 1
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- . . . . . . . . . . . . . . . . . . . . . 7.5 V Input Voltage . . . . . . . . . . . . . . . . . . . . GND – 0.3 V to (+VS) +0.3V Storage Temperature Range . . . . . . . . .–65℃ to +150℃ Junction Temperature . . . . . . . . . . . . . . . .. . . . . . . .160℃ Operating Temperature Range . . . . . . –40℃ to +125℃ Power Dissipation, PD @ TA = 25℃ SO-8 .............................................................................0.8W Package Thermal Resistance SO-8, θJA................................................................ 128℃/W Lead Temperature Range (Soldering 10 sec) ............................................. 260℃ ESD Susceptibility HBM...........................................................................8000V MM...............................................................................400V
NOTES 1. 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.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. Shengbang Micro-electronics recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
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SGM9116
TYPICAL PERFORMANCE CHARACTERISTICS
At VS = +5.0V, TA = +25℃, RL = 150Ω, all outputs AC coupled with 220µF, unless otherwise noted.
3 0
Frequency Response
270 180
Phase vs. Frequency
Normalized Gain(dB)
-3 -6 -9 -12 -15 0.01
Phase(degree)
90 0 -90 -180 -270
0.1
1
10
100
0.1
1
10
100
1000
Frequency(MHz)
Frequency(MHz)
Large Signal Step Response
0.75 0.5
0.3 0.2
Small Signal Step Response
Output Voltage(V/)
0.25 0 -0.25 -0.5 -0.75 -0.2
Output Voltage(V/)
-0.1 0 0.1 0.2 0.3 0.4
0.1 0 -0.1 -0.2 -0.3 -0.2
Time (µs)
-0.1
0
0.1
0.2
0.3
0.4
Time (µs)
-50 -55 -60 -65
PSRR vs. Frequency(Bypass Caps)
0 -10 -20
PSRR vs. Frequency(No Bypass Caps)
PSRR(dB)
-75 -80 -85 -90 -95 -100 0.01 0.1 1 10 100
PSRR(dB)
-70
-30 -40 -50 -60 -70 -80 0.01
0.1
1
10
100
Frequency(MHz)
Frequency(MHz)
4
SGM9116
TYPICAL PERFORMANCE CHARACTERISTICS
At VS = +5.0V, TA = +25℃, RL = 150Ω, all outputs AC coupled with 220µF, unless otherwise noted.
Group Delay vs. Frequency
16 14 12
30 29 28 27 26 25 24 23 22 21 20
Quiescent Current vs. Supply Voltage
No Load VIN = 500mV
10 8 6 4 2 0 0.1
Quiescent Current (mA)
Group Delay (ns)
Frequency(MHz)
1
10
100
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage(V)
38 36 34 30 28 26 24 22 20 18 -50
Quiescent Current vs. Temperature
3 2.7 2.4 2.1 1.8 1.5 1.2 0.9 0.6 0.3 0
Gain Error vs. Temperature
Quiescent Current (mA)
-25
0
25
50
75
100
125
Gain Error(%)
32
-50
-25
0
25
50
75
100
125
Temperature(℃)
Temperature(℃)
Output Voltage Swing to The Positive Rail vs. Output Current
5
Output Voltage Swing to The Negative Rail vs. Output Current
0.8
VIN = 0V
Output Voltage(v)
Output Voltage(v)
4.5
0.6
+25℃ +85℃
0.4
-40℃
4
+85℃ +25℃ -40℃
3.5
0.2
3 0 20 40 60 80 100
0
Output Current(mA)
0
20
40
60
80
100
Output Current(mA)
5
SGM9116
Applications Information Functional Description
SGM9116 operates from a single +2.5V to +5V supply. In application, SGM9116 is a fully integrated solution for filtering and buffering HDTV signals in front of video decoder or behind video encoder. For example, SGM9116 can replace three passive LC filters and three amplifier drivers at R\G\B and Y\Pb\Pr output side in set-top box and DVD player, this solution can help you save PCB size and production cost, it also improves video signal performance comparing with traditional design using discrete components. SGM9116 features a DC-coupled input buffer, 3-pole low-pass filter to eliminate out-of-band noise of video encoder, and a gain of +6dB in the output amplifier to drive 75Ω load. The AC or DC-coupled input buffer eliminates sync crush, droop, and field tilt. The output of SGM9116 also can be DC-coupled or AC-coupled.
Typical Application Diagram
The following schematic in Figure 2 is normally used for AC coupled output and DC-coupled input with DAC which has an output voltage range of 0V to 1.4V. AC coupled output offer slightly lower power dissipation and high ESD protection ability. The schematics in Figure 1 is are also popular in design. Figure 3 is a kind of special application in STB.
+5V 0.1µF or 0.01µF 4 +VS R/Pr 75Ω 2 1 IN1 OUT1 8 75Ω R/Pr 10µF
SGM9116
IN2 OUT2 7 75Ω G/Y
G/Y 75Ω
Input Considerations
Besides AC coupling, the SGM9116 inputs also can be DC-coupled. In DC coupling application, No input coupling capacitors are needed because the amplitude of input video signal from DAC includes ground and extends up to 1.4V, then SGM9116 can be directly connected to the output of a single-supply, current-output DAC without any external bias network. Some time, if DAC’s output level exceeds the range of 0V to 1.4V, or SGM9116 is driven by an unknown external source or a SCART switch which has its own clamping circuit, AC coupling is needed in such application.
B/Pb 75Ω
3
IN3
OUT3 GND 5
6 75Ω
B/Pb
Figure 1. DC Coupling Application Schematic
+5V 0.1µF or 0.01µF 4 +VS R/Pr 75Ω 1 IN1 OUT1 8 75Ω 220µF R/Pr 10µF
Output Considerations
The SGM9116 outputs can be DC-coupled or AC-coupled. While 0V is input, the SGM9116 output voltage is 260mV typically. In DC coupling design, one 75Ω resistor is used to Connect SGM9116’s output pin with external load directly, this serial back-termination resistor is used to match the impedance of the transmission line between SGM9116 and external load to cancel the signal reflection. The SGM9116 outputs can sink and source current allowing the device to be AC-coupled with external load, in AC coupling, 220µF at least capacitor will be used in order to cancel field tilt.
SGM9116
2 IN2 OUT2 7 75Ω 220µF G/Y
G/Y 75Ω
B/Pb 75Ω
3
IN3
OUT3 GND 5
6 75Ω 220µF
B/Pb
Figure 2. Input DC Coupling and Output AC Coupling Application Schematic
Power-Supply Bypassing and Layout
Correct power supply bypassing is very important for optimizing video performance in design. One 0.1µF and one 10µF capacitors are always used to Bypass VCC pin of SGM9116, please place these two capacitors as close to the SGM9116 output pin as possible, a large ground plane is also needed to ensure optimum performance. The input and output termination resistors should be placed as close to the related pin of SGM9116 as possible to avoid performance degradation. The PCB traces at the output side should have 75Ω characteristic impedance in order to match the 75Ω characteristic impedance cable connecting external load. In design, please keep the board trace at the inputs and outputs of the SGM9116 as short as possible to minimize the parasitic stray capacitance and noise pickup. 6
SGM9116
0.1µF or 0.01µF 4 +VS
10µF
VCC
to Loading 1 8 A 75Ω 75Ω 220µF to Loading 2 220µF to Loading 1 75Ω 75Ω 220µF to Loading 2 220µF to Loading 1 The three ports of A ,B and C should be immediate as signal output pin in layout
Y
75Ω
1
IN1
OUT1
SGM9116
2 IN2 7 OUT2 B
SOC Of STB
Pb
75Ω
Pr
75Ω
3
IN3
OUT3 GND 5
6 C
75Ω 75Ω
220µF to Loading 2 220µF
Figure 3. The DC Coupling Circuit Schematic is recommended in applications of STB
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SGM9116
PACKAGE OUTLINE DIMENSIONS
SO-8
D C
Symbol
L A A1 E1 E A2 B C θ e D E E1 e B A2 A1 L θ A
Dimensions In Millimeters Min
1.350 0.100 1.350 0.330 0.190 4.780 3.800 5.800 0.400 0°
Dimensions In Inches Min
0.053 0.004 0.053 0.013 0.007 0.188 0.150 0.228 0.016 0°
Max
1.750 0.250 1.550 0.510 0.250 5.000 4.000 6.300 1.270 8°
Max
0.069 0.010 0.061 0.020 0.010 0.197 0.157 0.248 0.050 8°
1.270TYP
0.050TYP
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SGM9116
REVISION HISTORY
Location 11/06— Data Sheet changed from preliminary to REV. A
Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Page
06/07— Data Sheet changed from REV. A to REV. B
Adds applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Shengbang Microelectronics Co, Ltd
Unit 3, ChuangYe Plaza No.5, TaiHu Northern Street, YingBin Road Centralized Industrial Park Harbin Development Zone Harbin, HeiLongJiang 150078 P.R. China Tel.: 86-451-84348461 Fax: 86-451-84308461 www.sg-micro.com
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SGM9116