TDA7222A
TDA7222AD
3V AM/FM ONE-CHIP RADIO
.
.
.
.
.
ADVANCE DATA
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
o
C)
LED DRIVE CIRCUIT FOR TUNING INDICA-
TION
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
GND1
FM MIX
AM MIX
AGC
V
CC2
AM IF IN
FM IF IN
GND2
TUN LED
ST LED
QUAD
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
AM RF IN
FM RF OUT
V
CC1
FM OSC
AM OSC
DET OUT
MPX IN
LPF1
LPF2
VCO
L OUT
R OUT
FM RF IN
GND1
FM MIX
NOT CONNECTED
AM MIX
AGC
V
CC2
AM IF IN
FM IF IN
NOT CONNECTED
GND2
TUN LED
ST LED
QUAD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AM RF IN
FM RF OUT
V
CC1
FM OSC
NOT CONNECTED
AM OSC
DET OUT
MPX IN
LPF1
LPF2
NOT CONNECTED
VCO
L OUT
R OUT
7222A-01.EPS / 7222AD01.EPS
February 1995
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.
1/7
2/7
L OUT
R OUT
V
CC
VCO
Stop
AM
FM
AM OSC
20
14
13
DET OUT
19
MPX IN
18
LPF1
17
LPF2
16
VCO
15
AM
OSC
Φ
Φ
BLOCK DIAGRAM
TDA7222A - TDA7222AD
AM RF IN FM RF OUT V
CC1
24
23
22
FM OSC
21
FM
OSC
VCO
PRE
DECODE
AM
AF
F.F
AM/FM
SW
FM
AF
HYS
SW
AM
DET
FM
RF
AM
MIX
AGC
FM
IF
AM
IF
LEVEL
DET
FM
MIX
TUN
LED
ST
LED
FM
DET
2
1
FM RF IN
GND1
AGC
V
CC2
3
5
6
FM MIX
4
AM MIX
7
AM IF IN
8
FM IF IN
9
GND2
10
TUN LED
11
12
ST LED
QUAD
BFP
7222A-02.EPS
TDA7222A - TDA7222AD
ABSOLUTE MAXIMUM RATINGS
Symbol
V
S
I
LED
V
LED
T
oper
T
stg
Parameter
Supply Voltage
LED Current
LED Voltage
Operating Temperature
Storage Temperature
Value
9
10
10
-20, +70
-55, +150
Unit
V
mA
V
o
C
o
C
RECOMMENDED OPERATING CONDITIONS
Supply Voltage
Operating Temperature
7222A-02.TBL
7222A-03.TBL
Symbol
V
S
T
oper
Parameter
Value
1.8 to 7
0, +70
Unit
V
o
C
ELECTRICAL CHARACTERISTICS
(unless otherwise specified)
F/E
: f = 83MHz, f
m
= 1kHz
T
A
= 25
o
C, V
CC
= 3V
FM IF : f = 10.7MHz,
∆f
=
±
22.5kHz, f
m
= 1kHz
AM
: f = 1MHz, MOD = 30%, f
m
= 1kHz
MPX : f
m
= 1kHz
Symbol
I
CC
(FM)
I
CC
(AM)
V
IN
(lim)
V
OSC
V
IN
(lim) IF
VOD
S/N
THD
AMR
V
L
G
V
VOD
S/N
THD
V
L
R19
R
IN
R
OUT
V
IN (Max.)
Stereo
Sep
THD
Monaural
THD
Stereo
G
V
(MPX)
C.B.
MPX
AM
FM
IF
Parameter
Supply Current
F/E
Input Limiting Voltage
Local OSC Voltage
Input Limiting Voltage
Recovered Output Voltage
Signal to Noise Ratio
Total Harmonic Distortion
AM Rejection Ratio
Lamp ON Sensitivity
Gain
Recovered Output Voltage
Signal to Noise Ratio
Total Harmonic Distortion
Lamp ON Sensitivity
Pin 19 Output Resistance
Input Resistance
Output Resistance
Max. Composite Signal Input Voltage
Separation
f
m
= 100Hz
f
m
= 1kHz
f
m
= 10kHz
L + R = 90%, P = 10%
f
m
= 1kHz, THD = 3%
L + R = 135mV
RMS
P = 15mV
RMS
V
IN
= 150mV
RMS
L + R = 135mV
RMS
P = 15mV
RMS
V
IN
= 150mV
RMS
V
IN
= 150mV
RMS
25
Test Conditions
V
IN
= 0, FM mode
V
IN
= 0, AM mode
- 3dB limiting
f
OSC
= 72.3MHz
- 3dB limiting
V
IN
= 80dBµ
V
IN
= 80dBµ
V
IN
= 80dBµ
V
IN
= 80dBµ
I
L
= 1mA
V
IN
= 26dBµ
V
IN
= 60dBµ
V
IN
= 60dBµ
V
IN
= 60dBµ
I
L
= 1mA
FM mode
AM mode
20
45
40
55
Min.
Typ.
13.2
8.4
10.0
105
46
80
70
0.4
32
51
70
80
42
1.0
25
0.75
12.75
24
5
350
32
32
32
0.2
0.2
-5
-2
-3
0
-1
2
56
110
110
Max.
20
13.5
Unit
mA
mA
dBµ
mV
RMS
53
110
dBµ
mV
RMS
dB
%
dB
dBµ
mV
RMS
mV
RMS
dB
%
30
dBµ
kΩ
kΩ
kΩ
kΩ
mV
RMS
dB
dB
dB
%
%
dB
dB
40
55
Total Harmonic Distortion (monaural)
Total Harmonic Distortion (stereo)
Voltage Gain
Channel Balance
3/7
7222A-01.TBL
TDA7222A - TDA7222AD
ELECTRICAL CHARACTERISTICS
(unless otherwise specified) (continued)
F/E
: f = 83MHz, f
m
= 1kHz
T
A
= 25
o
C, V
CC
= 3V
FM IF : f = 10.7MHz,
∆f
=
±
22.5kHz, f
m
= 1kHz
AM
: f = 1MHz, MOD = 30%, f
m
= 1kHz
MPX : f
m
= 1kHz
Symbol
V
L
(ON)
V
L
(OFF)
V
H
C.R.
S/N
Parameter
Stereo Lamp (ON) Sensitivity
Stereo Lamp (OFF) Sensitivity
Stereo Lamp Hysteresis
Capture Range
Signal to Noise Ratio
Test Condition s
Pilot Input
Min.
2
Typ.
6
2
3
±
3
70
Max.
Unit
mV
RMS
mV
RMS
mV
RMS
%
dB
P = 15mV
RMS
COIL DATA
Coil
N
o
L
1
L
2
L
3
T
1
T
2
T
3
FM RF
FM OSC
AM OSC
FM MIX
AM MIX
FM DET
f
(Hz)
100M
100M
796k
10.7M
455k
10.7M
238
75
180
47
L
(µH)
C
O
(pF)
Q
O
100
100
115
100
120
165
13
73
13
180
16
2
15
2
3
4
Turns
1 -2
2-3
1-3
1-4
2
1
2
4-6
Wire
0.5∅
UEW
0.5∅
UEW
0.08∅
UEW
0.1∅
UEW
0.08∅
UEW
0.09∅
MUEW
Ref. *
S -53T-037-202
S - 0258-24
S - 4147-1356-038
S - 2150-2162-165
S - 2153-4095-122
7222A-05.TBL
7222A-03.EPS
S - 2153-414-041
* S : Sumida Electric CO, LTD.
L1, L2
V.C.
Pin 20
V
CC
3
2
1
L3
4
4
6
V
CC
3
L4
6
1
V.C.V
CC
Pin 24
T1
Pin 3
3
2
V
CC
1
6
C.F.
Pin 4
4
V
CC
V
CC
3
2
1
T2
4
C.F.
V
CC
3
2
6
V
CC
Pin 12
1
T3
4
6
4/7
7222A-04.TBL
MPX
1S2236
100kΩ
0.47µF
10µH
* Polyester film condenser
ST
1kΩ
1000pF
MO
0.33µF
LPF1
17
LPF2
16
VCO
15k
Ω
L OUT
R OUT
10nF
10nF
4.7µF
1µF
*1µF
FM
10kΩ
5pF
APPLICATION CIRCUIT
5pF
10µF
41k
Ω
AM OSC
20
DET OUT
19
MPX IN
18
100kΩ
22pF
330pF
L4
L1
22pF
L2
L3
AM
15pF
AM RF IN
24
FM RF OUT
V
CC1
23
22
FM OSC
21
15
14
13
4.7µF
PRE
FM
OSC
AM
OSC
AM
AF
Pbase
COM
Pbase
COM
VCO
ST DECODER
HYS
1/2
AM/FM
MONO SW
1/2
1/2
SW
AM
DET
FM
RF
LEVEL
DET
FM
IF
FM
MIX
AM
AGC
AM
MIX
AM
IF
TUN
LED
ST
LED
FM
DET
1
AM MIX
AM AGC
33µF
2
V
CC2
AM IF IN
3
4
5
6
7
8
9
10
GND2
FM RF IN
GND1
FM MIX
FM IF IN
TUN LED
11
ST LED
12
QUAD
BPWB5
SFE
10.7MA5
33pF
T2
SFU455B
BFP
5.6kΩ
100Ω
560Ω
560Ω
T3
22µF
V
CC
(3V)
TDA7222A - TDA7222AD
T1
5/7
7222A-04.EPS
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