—1—

E93505-TE

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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.

• Supply voltage

Vcc

5

V

• Operating temperature

Topr

–20 to +75

°C

• Storage temperature

Tstg

–65 to +150

°C

• Allowable power dissipation

530

∗

mW

∗ When mounted on a 505×0×1.6 mm copper-

foiled glass epoxy board

Recommended Operating Conditions

Supply voltage

Vcc

2.7 to 4.5

V

Description

The CXA1851N is an up/down converter IC for

900 MHz-band mobile communications.

This is suitable for 900 MHz-band digital cordless

telephone (CT2) and digital cellular.

Features

• Transmission/reception converter on a single chip

• Operating frequency: 800 to 900 MHz

• Supply voltage: 2.7 to 4.5 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

Up/Down Converter for 900 MHz-Band Mobile Communications

20 pin SSOP (Plastic)

CXA1851N

MIX

MIX

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

20

19

Block Diagram and Pin Configuration

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