—1—

E93517A5Y-TE

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.

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

6V

• Operating temperature Topr

–20 to +70

°C

• Storage temperature

Tstg

–65 to +150

°C

• Allowable power dissipation

530

∗

mW

∗When mounted on a 50 × 50 × 1.6 mm copper-

foiled glass epoxy board

Recommended Operating Conditions

• Supply voltage

2.7±5.0

V

Description

The CXA1852N is an IC package that combines a

π/2 phase shifter with a quadrature modulator.

This is suitable for 900 MHz digital cordless

telephone (CT2) and digital cellular.

Features

• Quadrature modulator IC has a built-in

π/2 phase

shifter.

• Local frequency = 300.1 MHz (max.); I&Q = 36

kHz (max.)

• Small phase error

• Operating voltage range: 2.7 to 5 V

• Power saving function

• 20-pin SSOP package used for set size reduction

Applications

• CT2 digital cordless telephone

• Digital cellular

Structure

Bipolar silicon monolithic IC

Quadrature Modulator for 900 MHz-Band Mobile Communications

20 pin SSOP (Plastic)

Block Diagram and Pin Configuration

LPF

MIXER

F/F

LPF

REGULATOR

ADDER

-AMP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

20

19

CXA1852N

For the availability of this product, please contact the sales office.