TDA7227
SINGLE-CHIP AM/FM RADIO WITH FRONT-END
December 1992
ADVANCE DATA
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
AM RF IN
FM RF OUT
V
FM OSC
AM OSC
DET OUT
BAND S/W
AGC
QUAD DET
FM RF IN
GND1
FM MIXER
AM MIXER
FM IF IN
GND2
TUN LED
AM IF IN
CC1
CC2
V
7227-01.EPS
PIN CONNECTIONS
DIP18
(Plastic Package)
ORDER CODE : TDA7227
.
BUILT-IN FM F/E AND AM/FM IF
.
AM DETECTOR COIL AND IF COUPLING
CAPACITOR ARE NOT NECESSARY
.
WIDE OPERATING VOLTAGE RANGE
(1.8 - 7V)
.
LED DRIVE CIRCUIT FOR TUNING INDICA-
TOR
This is advance info rmation on a new product now in development or undergoing evaluation. Details are subject to change without notice.
DESCRIPTION
TDA7227 is a mono AM/FM one chip tuner ICs
which is designed for portable radios, clock radios
and radio cassette recorders.
1/5
AM
OSC
AM
MIX
FM
MI X
FM
IF
1
2
3
4
5
6
7
8
9
BFP
13
14
15
16
17
18
11
12
10
FM
RF
FM
OSC
TUN
LED
FM
DET
AGC
AM
IF
AM
DET
AF
AMP
LIMITER
BAND
S/W
AM RF IN
FM RF OUT
V
FM OSC
AM OSC
DET OUT
BA ND S/W
AGC
QUAD DET
CC1
AM IF IN
TUN LED
GND2
FM IF IN
V
AM MIX
FM MIX
GND1
FM RF IN
CC2
7227 -02.EPS
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage
9
V
I
LED
LED Curre nt
10
mA
V
LED
Led Voltage
10
V
T
oper
Operating Tem pera ture
- 25 to 75
o
C
T
stg
Storage Temperature
-55 to 150
o
C
7227-01.TBL
RECOMMENDED OPERATING CONDITION AT T
A
= 25
o
C
Symbol
Parameter
Value
Unit
V
S
Supply Voltage
1.8 to 7
V
T
oper
Operating Tem pera ture
- 20 to 60
o
C
7227-02.TBL
TDA7227
2/5
BFP
13
14
15
16
17
18
11
12
10
1
2
3
4
5
6
7
8
9
AMRF IN
FMRF OUT
FM OSC
AM OSC
DE T OUT
BAND S/W
AGC
QUAD DET
AMIF IN
TUN LED
GND2
FMIF IN
AM MIXER
FM MIXER
GND1
FMRF IN
V
V
CC1
CC2
CC
V
(3v)
AMRF
IN
FMRF
IN
FMIF IN
T1
T2
SFE
10.7MA5
SFU
455B
560
L1
L2
L3
T3
AM
FM
100nF
8.2nF
5.6k
2.2k
2.2mH
K
22nF
33nF
33
F
33nF
7227-03.EPS
TEST CIRCUIT
ELECTRICAL CHARACTERISTICS
T
A
= 25
o
C, V
CC
= 3V
F/E
: f = 100MHz, f
m
= 1kHz
FM IF : f = 10.7MHz, f = + 22.5kHz, f
m
= 1kHz
AM
: f = 1MHz, m = 30%, f
m
= 1kHz
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
S
Supply Voltage
1.8
3
7
V
I
CC
Supply Curre nt
V
IN
= 0, FM mode
V
IN
= 0, AM mode
9
7
mA
mA
V
IN
(lim)
FM F/E Input Limiting Voltage
- 3dB limiting
10
dB
FM SECTION
V
IN
(lim)
Input Limiting Voltage
- 3dB limiting
44
dB
V
O
Recovered Output Voltage
V
IN
= 80dB
80
mV
S/N
Signal to Noise Ratio
V
IN
= 80dB
70
dB
THD
Total Harmonic Distorsion
V
IN
= 80dB
0.4
%
AMR
AM Rejection Ratio
V
IN
= 80dB
50
dB
AM SECTION
G
V
Gain
V
IN
= 26dB
40
mV
V
O
Recovered Output Voltage
V
IN
= 60dB
60
mV
S/N
Signal to Noise Ratio
V
IN
= 60dB
44
dB
THD
Total Harmonic Distorsion
V
IN
= 60dB
1.0
%
R
O
Pin 12 Output Resistance
FM mode
AM mode
5
5
k
k
7227-03.TBL
TDA7227
3/5
3
2
1
4
3
2
1
4
6
6
3
2
1
4
6
6
4
3
2
1
L3
T1
T3
T2
Pin 3
V
C.F.
C.F.
V
CC
V
CC
CC
V
CC
V
CC
Pin 20
V.C.
Pin 1
L2
3
1
1
6
L1
7227-04.EPS
COIL DATA
Coil N
o
f
(Hz)
L
(
H)
C
O
(pF)
Q
O
Turns
Wire
(mm
)
Ref. *
1 - 2
2 - 3
1 - 3
1 - 4
1 - 6
L1 FM RF
100M
100
2
1
2
0.5 U EW
L2 FM OSC
100M
100
2
3
4
0.5 U EW
L3 AM OSC
796k
288
115
13
73
0.08 UEW
S - 4147 - 1356 - 045
T1 FM MIX
10.7M
75
115
12
1
0.12 UEW
S - 0133 - 309 - 045
T2 AM MIX
455k
180
120
180
15
0.08 UEW
S - 2150 - 2162 - 165
T3 FM DET
10.7M
47
165
16
0.09 UEW
S - 2153 - 4095 - 132
* S : Sumida Electronic CO, Ltd.
7227-04.TBL
TDA7227
4/5
18
10
1
9
a1
B
e
D
Z
b
Z
e3
F
b1
E
I
L
PM-DIP18.EPS
PACKAGE MECHANICAL DATA
18 PINS - PLASTIC DIP
ORDER
CODE
:
Information furnished is believed to be accurate and reliable. However, SGS-THOM SON Microelectronics assumes no res ponsibility
for the consequences of us e of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-TH OMSON Microelec tronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or sy stems without express written approval of SGS-THOMSON Microelectronics.
1992 SGS-THOMSON Microelectronics - A ll Rights R eserved
SGS-THOM SON Microelectronics GROUP OF C OMPANIES
Australia - Brazil - China - France - Germa ny - Hong Kong - Italy - Japan - K orea - M alaysia - M alta - Morocco
The Netherlands - Singapore - Spain - Sw eden - Switzerland - Taiwan - U nited Kingdo m - U .S.A.
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
a1
0.254
0.010
B
1.39
1.65
0.055
0.064
b
0.46
0.018
b1
0.25
0.010
D
23.24
0.914
E
8.5
0.335
e
2.54
0.100
e3
20.32
0.800
F
7.1
0.280
i
3.93
0.155
L
3.3
0.130
Z
1.27
1.59
0.050
0.062
DIP18.TBL
TDA7227
5/5
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