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CXA3222N
TX Gain Control Amplifier For the availability of this product, please contact the sales office.
Description CXA3222N is a TX gain control amplifier suitable for CDMA cellular/PCS phone. Features * Wide gain control range * Linear gain slope * Wideband operation (50MHz to 300MHz) * Very small package (8 Pin SSOP) * Low voltage operation * High output IP3 * Power save function included Absolute Maximum Ratings * Supply voltage VCC 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 * Differental signal input voltage 0 to 2.5 V Operating Condition Supply voltage Applications CDMA cellular/PCS phone Structure Bipolar silicon monolithic IC 8 pin SSOP (Plastic)
VCC
2.7 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-
E97810-PS
CXA3222N
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
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CXA3222N
Pin Description Pin No. Symbol Pin voltage TYP (V) Equivalent circuit Description
1
CDMA IN
1.1
40k 40k
Differential input pins for CDMA transmit IF signal. 2 CDMA INX 1.1
1 2 GND
3
GND
0
VCC1
Ground.
4
PSV
--
4 135k
Power save function pin. High: Active Low: Power save
GND
5
6 510 510 VCC2
5
OUTX
--
12.25k
12.25k
Differential output pins for transmit IF signal. Open collector output.
6
OUT
--
GND
7
VCC
3.0
VCC1 8k 8k
Positive power supply.
8
GCTL
--
8
Gain control pin.
6k
6k GND
-3-
CXA3222N
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 = 3.0V, Vgctl = 1.5V, Pin 7 Vpsv = 0 V, Vgctl = 1.5V, Pin 7 Vpsv = 3.0V Vpsv = 0 V Vgctl = 3.0V Vgctl = 0.5V Pin 4 Pin 4 -1 2.5 0.5 V -15 1 (VCC = 3.0V, Ta = 27C) Min. Typ. Max. Unit 10 5 15.7 21.5 18 40 1 A mA
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 = 130.38MHz, level = -22.5dBm, Vgctl = 2.3V Vgctl = 1.5V Vgctl = 1.0V Vgctl = 0.7V Gain at Vgctl = 2.0V - Gain at Vgctl = 1.0V G = 15dB1 f1 = 129.38MHz, f2 = 131.38MHz Measure of 130.38MHz G = 15dB1 Measure of 130.38MHz Conditions
(VCC = 3.0V, Ta = 27C) Min. Typ. Max. Unit 50 13 -28 -58 -75 56 17 -24 -54 -70 59 300 MHz 21 -20 -50 -65 62 dB/V dBm dB
-8.5 -4.5
NF
28
32
dB
1 Adjust GCTL voltage, and set the overall gain to 15dB.
-4-
CXA3222N
Measurement Circuit
1 1 CDMA INPUT 2 1000p 2k 1000p
1k 1 CDMA IN GCTL 8 0.01 A8
V16
V7 2 CDMA INX VCC 7 A7 0.01
820n3
3 GND OUT 6
820n3
1 1 OUTPUT 2.1k
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 CDMA RX IF INPUT 2 CDMA INX 1000p 3 GND Active Sleep 4 PSV OUTX 5 OUT 6 VCC 7 0.01 GCTL 8 100p 1k
Gain Control Voltage
1000p RX IF OUTPUT 1000p
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-
CXA3222N
Design Reference Values Single ended measurement Item Input resistance Input capacitance Output resistance Output capacitance Symbol Rin Cin Rout Cout f = 130.38MHz, Vgctl = 1.5V Conditions (VCC = 3.0V, Ta = 27C) Typ. 10 0.92 6 0.9 Unit k pF k pF
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-
CXA3222N
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-
CXA3222N
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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