Sony CXA3001N Datasheet

CXA3001N

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RX Gain Control Amplifier

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 VCC 6V

•Operating temperature Topr –40 to +85 °C

• Storage temperature Tstg –65 to +150 °C

• Allowable power dissipation PD 420 mW

• 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

24 pin SSOP (Plastic)

Operating Conditions

Supply voltage 3.1 to 3.8 V

Applications

• CDMA cellular mobile phone

• CDMA & AMPS cellular phone

Structure

Bipolar sillicon 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 –

E95711-PP

Block Diagram

CXA3001N

IF Input

for CDMA

IF Input

for FM

Input Select

Gain Control

Supply Voltage

Ground

Power Save

CDMAIN

CDMAINX

FMIN

FMINX

MODE

GCTL

VCC1, 2

GND1, 2

PSV

SWITCH

SWITCH

Bias
Driver

CXA3001N

OUT

OUTX

BP1

BP2

IF Output

to External
Capacitor

– 2 –

Pin Configuration

CXA3001N

CC1

V

GND1

NC

NC

NC

FMIN

NC

1

2

3

4

5

6

CXA3001N

7

8

9

10

MODE PSV

CDMAIN

CDMAINX

23

22

20

19

18

17

16

15

24

21

GCTL

NC

NC

NC

OUTX

NC

OUT

NC

CC2

V

11

FMINX

12

BP1 BP2

14

13

GND2

– 3 –

Pin Description

CXA3001N

Pin
No.

Symbol

1 MODE

Pin voltage

Typ. (V)

Equivalent circuit Description

VCC1

30k

1

Input select pin.
CDMAIN for High.
FMIN for Low.

GND1

2VCC1 3.6 Positive power supply.
3 GND1 0 Ground.
4

6

N.C.

8

No connection.

10

5 CDMAIN

1.2

2k2k

Differential input pins for
received CDMA IF signal.

7 CDMAINX 1.2

9

FMIN

11 FMINX

1.2

1.2

12 BP1

2.4

13 BP2

14

GND2 0

15 VCC2

3.6

16 N.C.

19

12

GND1

5

7

2k2k

Differential input pins for
received FM IF signal.

GND1

9

11

VCC2

Connected to GND with
capacitor 0.01µF.

17

Ground for output stage.

20k

20k

Positive power supply for
output stage.

No connection.

13

17 OUT 1.7

19 OUTX 1.7

Differential output pins for
received IF signal.

GND2

– 4 –