CXA1538 データシートの表示（PDF） - Sony Semiconductor

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CXA1538

FM Stereo / AM Radio

Sony Semiconductor 

CXA1538M/N/S

No.

Symbol

11 GND

Pin Voltage (V)

VCC=3 V VCC=6 V

FM AM FM AM

0000

25 MUTE

0.05 0.01 0.05 0.01

Equivalent circuit

25

11

Description

GND of FM/AM IF and DET

stage

Time constant for muting

provided

12 TUNE IND 1.6 1.6 4.5 4.5

12

FM/AM tuning indicator drive

circuit

13 FM IF IN

BAND

15

SELECT

1.35 0 1.35 0

33C

15

13

3k

FM IF input pin

FM/AM band switching pin :

AM at GND and FM at OPEN

14 AM IF IN

0000

1k

14

2k

AM IF input pin

FM/AM

16

FE OUIT

0.57 0.2 0.8 0.2

AM Block

FM Block

16

220

AM/FM IF output pin to

connect with IF filter

17 FE GND

18 FM RF IN

20 FM RF

19 AM RF IN

0000

20

0.3 0 0.3 0

18

1.25 1.25 1.25 1.25

17

1.25 1.25 1.25 1.25 19

3p

1k

FE REG

GND

GND of FM/AM front end

FM RF amplifier circuit for FM

RF input

FM RF amplifier circuit to

connect to RF tank circuit

AM RF input to connect to bar

antenna

—3—

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