Sony CXA1951Q Datasheet

CXA1951Q

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GPS Down Converter

Description

The CXA1951Q is an IC developed as a GPS
down converter, featuring low current consumption
and small package. This IC is suitable for the mobile
GPS (Global Positioning System).

Features

• Includes all functions required for the GPS converter.

• Total gain: 110dB or more

• Operating supply voltage range: 2.7 to 5.5V

• Low current consumption:

Icc = 30mA (Typ. at Vcc = 3V)

• Excellent temperature characteristics

Applications

GPS (Global Positioning System)

Structure

Bipolar silicon monolithic IC

Preliminary

40 pin QFP (Plastic)

Absolute Maximum Ratings (Ta = 25°C)

• Supply voltage VCC 7.0 V

• Operating temperature Topr –40 to +85 °C

• Storage temperature Tstg –65 to +150 °C

• Allowable power dissipation

PD 200 mW

Operating Conditions

Supply voltage VCC 2.7 to 5.5 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 –

PE95Z40-ST

Block Diagram and Pin Configuration

LIM DEC2

LIM DEC1

30

29

LIM IN

28

CC

LIM V

27

26

CC

IF V

IF OUT

25

IF DEC2

24

IF DEC1

23

IF IN2

22

CXA1951Q

IF IN1

21

LIM OUT

LIM GND

N.C

REF INV

REF IN

PLL GND

FC

TEST OUT

LOCK DET

PLL V

CC

31

32

33

34

35

36

37

38

39

40

1/4 or 1/6

1/338 or 1/570

1

NSW

PLL

2

CP OUT

3

N.C

4

OSC GND

5

OSC GND

6

OSCB1

OSC

7

OSCE1

8

OSCE2

9

OSCB2

10

OSC GND

20

19

18

17

16

15

14

13

12

11

IF GND

RF OUT2

RF OUT1

RF VCC

RF IN2

RF IN1

RF GND

RF GND

OSC DEC

OSC V

CC

– 2 –