CXA3001N
RX Gain Control Amplifier For the availability of this product, please contact the sales office.
Description CXA3001N is an RX gain control amplifier for CDMA cellular mobile phone. Features • Wide gain control range • Linear gain slope • Noise figure Typ. 6dB at Gain = 45dB • Output IP3 Typ. +2dBm at Gain = 40dB • 2 input ports • Power save function included Absolute Maximum Ratings • Supply voltage • Operating temperature • Storage temperature • Allowable power dissipation • Supply voltage range • Logic input voltage • Signal input voltage • Differential signal input voltage Operating Conditions Supply voltage Applications • CDMA cellular mobile phone • CDMA & AMPS cellular phone Structure Bipolar sillicon monolithic IC 24 pin SSOP (Plastic)
VCC Topr Tstg PD
6 –40 to +85 –65 to +150 420 –0.3 to 6 –0.3 to VCC +0.3 –0.3 to VCC +0.3 0 to 2.5
V °C °C mW V V V V
3.1 to 3.8
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E95711-PP
CXA3001N
Block Diagram
IF Input for CDMA
CDMAIN CDMAINX SWITCH OUT OUTX SWITCH IF Output
IF Input for FM
FMIN FMINX
Input Select
MODE
BP1 to External Capacitor BP2
Gain Control
GCTL
Supply Voltage
VCC1, 2
Bias Driver
Ground
GND1, 2 CXA3001N
Power Save
PSV
–2–
CXA3001N
Pin Configuration
MODE 1
24 PSV
VCC1 2
23 GCTL
GND1 3
22 NC
NC 4
21 NC
CDMAIN 5
20 NC
NC 6 CXA3001N CDMAINX 7
19 OUTX
18 NC
NC 8
17 OUT
FMIN 9
16 NC
NC 10
15 VCC2
FMINX 11
14 GND2
BP1 12
13 BP2
–3–
CXA3001N
Pin Description Pin No. Symbol Pin voltage Typ. (V) Equivalent circuit
VCC1
Description
30k 1
1
MODE
Input select pin. CDMAIN for High. FMIN for Low.
GND1
2 3 4 6 8 10
VCC1 GND1
3.6 0
Positive power supply. Ground.
N.C.
No connection.
5
CDMAIN
1.2
2k 2k
Differential input pins for received CDMA IF signal.
GND1
7
CDMAINX
1.2
5 7
9
FMIN
1.2
2k
2k
Differential input pins for received FM IF signal.
GND1
11
FMINX
1.2
9 11
VCC2
12 13 14 15 16 17 19
BP1 2.4 BP2 GND2 VCC2 N.C. OUT OUTX 1.7 1.7 –4– 0 3.6
19
Connected to GND with capacitor 0.01µF.
17
Ground for output stage. Positive power supply for output stage.
20k
20k
12
13
No connection.
Differential output pins for received IF signal.
GND2
CXA3001N
Pin No. 18 20 21 22
Symbol
Pin voltage Typ. (V)
Equivalent circuit
Description
N.C.
No connection.
VCC1
23
GCTL
23
Gain control pin with a ripple filter.
GND1
VCC1
24
PSV
24 40k
Power save function pin. High: Active Low: Power save
GND1
–5–
CXA3001N
Electrical Characteristics DC characteristics Parameter Current consumption 1 Current consumption 2 Current consumption 3 Current consumption 4 Input current pin 1H Input current pin 1L Input current pin 23H Input current pin 23L Input current pin 24H Input current pin 24L MODE high voltage MODE low voltage PSV high voltage PSV low voltage AC characteristics Parameter Symbol Conditions Min. 10 VMODE = "H" VGCTL = 2.3V VMODE = "H" VGCTL = 1.5V VMODE = "H" VGCTL = 0.7V VMODE = "H" VMODE = "L" VGCTL = 2.3V VMODE = "L" VGCTL = 1.5V VMODE = "L" VGCTL = 0.7V VMODE = "L" f = 85.38MHz Level = –50dBm Level = –30dBm Level = –10dBm VGCTL = 1 to 2V f = 85.38MHz Level = –50dBm Level = –30dBm Level = –10dBm VGCTL = 1 to 2V 37 –7.5 –55 57 37 –7.5 –55 57 41 –3 –49 60 41 –3 –49 60 Symbol ICC1 ICC2 ICC3 ICC4 IMODE H IMODE L IGCTL H IGCTL L IPSV H IPSV L VMH VML VPSH VPSL Conditions VGCTL = 1.5V, Pin 2 VGCTL = 1.5V, Pin 15 VPSV = 0.5V, Pin 2 VPSV = 0.5V, Pin 15 VMODE = 3V VMODE = 0.5V VGCTL = 3V VGCTL = 0.5V VPSV = 3V VPSV = 0.5V Pin 1 Pin 1 Pin 24 Pin 24 3 0.5 (VCC = 3.6V, Ta = 25°C) Typ. Max. 100 46 1.5 –44 63 46 1.5 –44 63 dB/V dB dB/V dB Unit MHz –10 3 0.5 V –10 10 –20 10 Min. 10 4.7 (VCC = 3.6V, Ta = 25°C) Typ. 14 6.6 Max. 19 9.0 1 1 10 µA Unit mA
Operating frequency range FR Gain Gain Gain CDMA2.3 CDMA1.5 CDMA0.7 GCDMA2.3 GCDMA1.5 GCDMA0.7 GCLIN GFM2.3 GFM1.5 GFM0.7 GFMLIN
CDMA Gain slope Gain Gain Gain FM2.3 FM1.5 FM0.7
FM Gain slope
Input level 3rd order intercept point
IIP3
VMODE = "H" GCDMA = 40dB∗ F1 = 86.38MHz F2 = 87.38MHz Measure of 85.38MHz VMODE = "H" GCDMA = 40dB∗ Used 1MHz BPF Measure of 85.38MHz
–42
–38
dBm
Noise Figure
NF
6.5
9.5
dB
∗ Adjust GCTL voltage, and set the overall gain to 40dB. –6–
CXA3001N
Measurement Circuit
V1
A1
V24 1 MODE PSV 24
A24
V2
A2
1k 0.01µ 2 VCC1 GCTL 23 0.01µ
A23
V23
3 GND1
NC 22
10k
V5
4 NC
NC 21
1:3 CDMA INPUT 680n 1000p 1000p
5 CDMAIN
NC 20 220
10k
V19
1.2k
6 NC
OUTX 19 1000p
3:1 OUTPUT
7 CDMAINX
V7
NC 18 220 1000p
V17
10k 10k
V9
8 NC
OUT 17 10k
1:3 FM INPUT 680n 1000p 10k
V11
9 FMIN 1000p 1.2k 10 NC
NC 16
0.01µ V15
A15
VCC2 15
11 FMINX
GND2 14 0.01µ
0.01µ 12 BP1
V12
BP2 13
V13
1k
1k
–7–
CXA3001N
Application Circuit
1µ VCC 0.1µ CDMA FM Active Sleep
0.01µ
1 2 3
24 23 22 0.01µ 21 20 CXA3001 19 18 17 16 15 14 13 0.01µ 0.01µ 220 220
1k
Gain Control Voltage
1000p CDMA RX IF INPUT CDMA RX BPF ∗ ∗
4 5 6 7
1000p FM RX IF INPUT FM RX BPF ∗ 1000p ∗ 8 9 10 11 1000p 12 0.01µ
RX IF BPF
RX IF OUTPUT
∗ Must be adjusting values to result a best impedance matching between BPF filter and this IC.
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
–8–
CXA3001N
Design Reference Values Single ended measurement Item Input resistance Input capacitance Output resistance Symbol RIN CIN ROUT f = 85.38MHz, VGCTL = 1.5V Conditions (VCC = 3.6V, Ta = 25°C) Typ. 900 9 30 Unit Ω pF Ω
Notes on Operation 1) This IC is a wideband amplifier with wide gain control range. Separate Pin 3 (GND1) and Pin 14 (GND2) to prevent interference between input and output. Furthermore, the decoupling capacitors between Pins 2 and 3, Pins 14 and 15 should be as close to the IC as possible. 2) The resistors connected to Pins 17 and 19 should be as close to the IC as possible. 3) This IC assumes the excellent characteristics when the differential input impedance between Pins 5 and 7, Pins 9 and 11 is 500Ω. Refer to the Measurement Circuit for the external element settings, etc. 4) Connect the capacitors, which are connected to Pins 12 and 13, to Pin 14 (GND2). 5) Pay attention to handling this IC because its electrostatic discharge strength is weak.
–9–
CXA3001N
Sensitivity
60
VCC = 3.6V
40
20
Power gain [dB]
0
–20
–40 T = –40deg T = 25deg T = 85deg –60 0 0.5 1 1.5 2 2.5 3 3.5 VGCTL [V]
IIP3
0
VCC = 3.6V
–10 –20
IIP3 [dBm]
–30
–40 Ta = –40deg Ta = 25deg Ta = 85deg –40 –20 0 Power gain [dB] 20 40 60
–50
–60 –60
– 10 –
CXA3001N
Noise Figure
50
VCC = 3.6V
40
Ta = –40deg Ta = 25deg Ta = 85deg
Noise figure [dB]
30
20
10
0 –60
–40
–20
0 Power gain [dB]
20
40
60
Gain Error from Room Temp.
6
VCC = 3.6V
4
Ta = –40deg Ta = 85deg
2
Gain error [dB]
0
–2
–4
–6 –60 –40 –20 0 Power gain [dB] 20 40 60
– 11 –
CXA3001N
Package Outline
Unit: mm
24PIN SSOP (PLASTIC) 275mil
∗7.8 ± 0.1 24 13
+ 0.2 1.25 – 0.1 0.10 A 0.1 ± 0.1
5.6 ± 0.1
7.6 ± 0.2
0° to 10° + 0.1 0.22 – 0.05 1 12 + 0.05 0.65 ± 0.12 0.15 – 0.02 DETAIL A
NOTE : ∗NOT INCLUDE MOLD FINS.
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE SSOP-24P-L01 A SIMILAR TO SSOP024-P-0300 LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT EPOXY / PHENOL RESIN SOLDER PLATING 42 ALLOY
– 12 –
0.5 ± 0.2
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