TDA7222A

TDA7222AD

3V AM/FM ONE-CHIP RADIO

February 1995

ADVANCE DATA

PIN CONNECTIONS

SHRINK DIP24

(Plastic Package)

ORDER CODE : TDA7222A

.

BUILT-IN FM F/E, AM/FM IF AND FM MPX

.

AM DETECTOR COIL AND IF COUPLING CA-

PACITOR ARE NOT NEEDED

.

COMPACT PACKAGE : 24-Pin Shrink

.

OPERATING SUPPLY VOLTAGE RANGE

.

LED DRIVE CIRCUIT FOR TUNING INDICA-

TION

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.

DESCRIPTION

TDA7222Aand TDA7222AD are AM/FM chip tuner

ICs, which are designed for portable radios and 3V

headphone radios.

SO28

(Plastic Micropackage)

ORDER CODE : TDA7222AD

1

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9

10

20

19

18

17

16

15

14

13

24

23

22

21

11

12

AM RF IN

FM RF OUT

V

FM OSC

AM OSC

DET OUT

MPX IN

LPF1

LPF2

VCO

L OUT

R OUT

FM RF IN

GND1

FM MIX

AM MIX

AGC

V

AM IF IN

FM IF IN

GND2

TUN LED

ST LED

QUAD

CC1

CC2

TDA7222A (SDIP24)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

24

23

22

21

11

12

25

13

14

28

27

26

FM RF IN

GND1

FM MIX

NOT CONNECTED

NOT CONNECTED

AM MIX

AGC

AM IF IN

FM IF IN

GND2

TUN LED

ST LED

QUAD

NOT CONNECTED

NOT CONNECTED

VCO

L OUT

R OUT

LPF2

LPF1

MPX IN

DET OUT

AM OSC

FM OSC

AM RF IN

FM RF OUT

TDA7222AD (SO28)

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