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CXA3222AN
TX Gain Control Amplifier
Description CXA3222AN is a TX gain control amplifier suitable for CDMA cellular/PCS phone. Features * Wide gain control range * Linear gain slope * Wideband operation (50 MHz to 300 MHz) * Very small package (8 Pin SSOP) * Low voltage operation * High output IP3 * Power save function included Absolute Maximum Ratings * Supply voltage VCC * * * * * * 8 pin SSOP (Plastic)
6 V Operating temperature Topr -55 to +125 C Storage temperature Tstg -65 to +150 C Supply voltage range -0.3 to 6 V Logic input voltage -0.3 to VCC + 0.3 V Signal input voltage -0.3 to VCC + 0.3 V Differential signal input voltage 0 to 2.5 V
Operating Condition Supply voltage
VCC
2.7 to 3.8
V
Applications CDMA cellular/PCS phone Structure Bipolar silicon monolithic IC
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--
E98823A8Y
CXA3222AN
Block Diagram
IF Input
CDMA IN CDMA INX
OUT OUTX
IF Output
Gain control
GCTL
Supply Voltage
VCC Bias Driver
Ground
GND
Power Save
PSV
Pin Configuration
CDMA IN
1
8
GCTL
CDMA INX
2
7
VCC
GND
3
6
OUT
PSV
4
5
OUTX
--2--
CXA3222AN
Pin Description Pin No. Symbol Pin voltage TYP (V) Equivalent circuit
VCC
Description
1
CDMA IN
1.1
1 2
200 40k 40k
Differential input pins for CDMA transmit IF signal.
2
CDMA INX
1.1
200 GND
3
GND
0
VCC
Ground.
4
PSV
--
4
135k
Power save function pin. High: Active Low: Power save
GND
VCC 510 510 12.25k
5
OUTX
--
12.25k
5 6
Differential output pins for transmit IF signal. Open collector output. 6 OUT --
GND
7
VCC
3.0
VCC 8k 8k
Positive power supply.
200
8
GCTL
--
8
Gain control pin.
6k
6k GND
--3--
CXA3222AN
Electrical Characteristics DC Characteristics Parameter Current consumption 1 Current consumption 2 Input current pin 4H Input current pin 4L Input current pin 8H Input current pin 8L PSV high voltage PSV low voltage Symbol ICC1 ICC2 IpsvH IpsvL IgctlH IgctlL VpsH VpsL Conditions Vpsv=3.0 V, Vgctl=1.5 V, Pin 7 Vpsv=0 V, Vgctl=1.5 V, Pin 7 Vpsv=3.0 V Vpsv=0 V Vgctl=3.0 V Vgctl=0.5 V Pin 4 Pin 4 Min. 10 5 -15 1 -1 2.5 0.5 (VCC=3.0 V, Ta=27 C) Typ. 15.7 18 Max. 21.5 40 1 Unit mA
A
V
AC Characteristics Parameter Operating frequency range Gain 2.3 Gain 1.5 Gain 1.0 Gain 0.7 Gain slope Input level 3rd order intercept point Noise Figure Symbol Fr G2.3 G1.5 G1.0 G0.7 GCLIN IIP3 f=130.38 MHz, level=-22.5 dBm, Vgctl=2.3 V Vgctl=1.5 V Vgctl=1.0 V Vgctl=0.7 V Gain at Vgctl=2.0 V - Gain at Vgctl=1.0 V G=15 dB 1 f1=129.38 MHz, f2=131.38 MHz Measure of 130.38 MHz G=15 dB 1 Measure of 130.38 MHz Conditions Min. 50 13 -28 -58 -75 57 -8.5
(VCC=3.0 V, Ta=27 C) Typ. Max. 300 17 -24 -54 -70 60 -4.5 21 -20 -50 -65 63 dB Unit MHz
dB/V dBm
NF
28
32
dB
1 Adjust GCTL voltage, and set the overall gain to 15 dB.
--4--
CXA3222AN
Measurement Circuit
1000p 1 1 CDMA INPUT 1000p 2 2k
10k 1 CDMA IN GCTL 8 0.01 A8
V16
V7 2 CDMA INX VCC 7 A7
820n3
3 GND
OUT 6 2.4k
820n3
0.01
1 OUTPUT
V4 A4 4 PSV OUTX 5
1 TOKO, Inc. B5FL 616DS-1135 2 Coilcraft, Inc. 1008HS-102TKBC 3 Coilcraft, Inc. 1008HS-821TKBC
Application Circuit
VCC 0.01 1000p 1 CDMA IN TX IF INPUT 2 CDMA INX 1000p 3 GND Active Sleep 4 PSV OUTX 5 1000p OUT 6 VCC 7 0.01 1000p TX IF OUTPUT GCTL 8 100p 1k
Gain Control Voltage
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.
--5--
CXA3222AN
Design Reference Values Single ended measurement Item Input resistance Input capacitance Output resistance Output capacitance Symbol Rin Cin Rout Cout Conditions (VCC=3.0 V, Ta=27 C) Typ. 10 0.92 6 0.9 Unit k pF k pF
f=130.38 MHz, Vgctl=1.5 V
Notes on Operation 1) This IC is a wideband amplifier with wide gain control range. The decouping capacitors between GND Pin and VCC Pin should be as close to the IC as possible. 2) The resistors connected to Pins 5 and 6 should be as close to the IC as possible. 3) This IC assumes the excellent characteristics when the differential input impedance between Pins 1 and 2 is 500. Refer to the Measurement Circuit for the external element settings, etc. 4) Pay attention to handling this IC because its electrostatic discharge strength is weak.
--6--
CXA3222AN
Sensitivity 40 VCC = 3.0V 20 0 10 15
IIP3 VCC = 3.0V
Power gain [dB]
5
-20 -40 -60 -80 -100 0 0.5 1 1.5 2 2.5 3 3.5 Vgctl [V]
IIP3 [dBm]
0
-5 T = -40C T = 27C T = 85C T = -40C T = 27C T = 85C
-10
-15 -60
-40
-20
0
20
40
Power gain [dB]
Noise Figure 100 90 80 VCC = 3.0V 4 6
Gain Error from Room Temp VCC = 3.0V
Noise figure [dB]
70 60 50 40 30 20 -80
Gain error [dB]
T = -40C T = 27C T = 85C -60 -40 -20 0 20
2
0
-2 T = -40C T = 85C
-4
-6 -80
-60
-40
-20
0
20
40
Power gain [dB]
Power gain [dB]
--7--
CXA3222AN
Package Outline
Unit : mm
8PIN SSOP (PLASTIC)
3.0 0.1 + 0.2 1.25 - 0.1 0.1 8 5 A
4.4 0.1
1
4 0.65
+ 0.08 0.24 - 0.07 B
0.25 0.13 M 0.1 0.05
6.4 0.2
(0.22)
(0.15) + 0.025 0.17 - 0.015
+ 0.08 0.24 - 0.07
0 to 10
DETAIL A
DETAIL B NOTE: Dimension "" does not include mold protrusion.
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE SSOP-8P-L01 SSOP008-P-0044 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER ALLOY 0.04g
--8--
(0.5)
0.6 0.15

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