TDA7222 Datasheet, PDF (1/7 Pages) STMicroelectronics – 3V AM/FM ONE-CHIP RADIO

TDA7222A
TDA7222AD
. _{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}
V_{CC (opr)} = 1.8 to 7.0V (T_A = 25^oC)
. LED DRIVE CIRCUIT FOR TUNING INDICA-
TION
3V AM/FM ONE-CHIP RADIO
ADVANCE DATA
SHRINK DIP24
(Plastic Package)
ORDER CODE : TDA7222A
DESCRIPTION
TDA7222Aand TDA7222AD are AM/FM chip tuner
ICs, which are designed for portable radios and 3V
headphone radios.
PIN CONNECTIONS
TDA7222A (SDIP24)
SO28
(Plastic Micropackage)
ORDER CODE : TDA7222AD
TDA7222AD (SO28)
FM RF IN
1
GND1
2
FM MIX
3
AM MIX
4
AGC
5
V_CC2
6
AM IF IN
7
FM IF IN
8
GND2
9
TUN LED
10
ST LED
11
QUAD
12
24
AM RF IN
23
FM RF OUT
22
V _CC1
21
FM OSC
20
AM OSC
19
DET OUT
18
MPX IN
17
LPF1
16
LPF2
15
VCO
14
L OUT
13
R OUT
FM RF IN
1
GND1
2
FM MIX
3
NOT CONNECTED
4
AM MIX
5
AGC
6
V_CC2
7
AM IF IN
8
FM IF IN
9
NOT CONNECTED
10
GND2
11
TUN LED
12
ST LED
13
QUAD
14
28
AM RF IN
27
FM RF OUT
26
V_CC1
25
FM OSC
24
NOT CONNECTED
23
AM OSC
22
DET OUT
21
MPX IN
20
LPF1
19
LPF2
18
NOT CONNECTED
17
VCO
16
L OUT
15
R OUT
February 1995
1/7
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.