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AM/FM TUNER S1A2297X01
INTRODUCTION
The S1A2297X01 is a monolithic integrated circuit which consists of an FM F/E + AM/FM IF and DET AMP.
The S1A2297X01 is a no-adjustment AM/FM IF, DET coil.
FEATURES
• Does not need AM/FM IF, FM DET COIL
• Built-in FM Front End
• Minimum number of external parts required
• Operating voltage : VCC = 1.8V − 7V
ORDERING INFORMATION
Device Package Operating Temperature
S1A2297X01-D0B0 16−DIP−300A
−20°C — + 75°C
S1A2297X01-S0B0 16−SOP−375
16−DIP−300A
16−SOP−375
BLOCK DIAGRAM
FM RF
V
IN
CC
6
1
FM F/E FM MIX
AM RF AM MIX AM OSC
AM RF IN
FM RF
OUT
15
FM MIX
3 13
4
AM MIX
FM OSC FM IF IN
8
FM OSC FM IF
AGC
AM IF AM DET
1216
AM OSC AGC
5
AM IF IN
QUAD
10
FM DET
2
GND
AM/FM SW
14
AM/FM SW
9117
DET OUT
GND2
1
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S1A2297X01 AM/FM TUNER
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic Symbol Value Unit
Maximum Supply Voltage V
Power Dissipation P
Operating Temperature T
Storage Temperature T
CC
D
OPR
STG
8 V
250 mW
−20 — +75 °C
−55 — +125 °C
ELECTRICAL CHARACTERISTICS
(FM F/E: f = 98MHz, fm = 1KHz, ∆f = 22.5kHz, FM IF: 10.7MHz, AM: f = 1MHz, fm = 1kHz, 30% mod, VCC = 3V)
Characteristic Symbol Test Conditions Min. Typ. Max. Unit
Quiescent Circuit Current
FM F/E −3dB Limiting V
−3dB Limiting Sensitivity V
Detector Output Voltage V
FM
IF
Total Harmonic Distortion THD1 VI = 80dBµ − 0.4 1 %
Signal to Noise Ratio S/N1 VI = 80dBµ 56 62 − dB
AM Rejection Ratio AMR VI = 80dBµ 32 38 − dB
I
CCQ1
I
CCQ2
(LIM)1
(LIM)2
O(DET)1VI
FM, VI = 0 6.0 10.0 14.0 mA
AM, VI = 0 3.0 5.0 8.0 mA
VO = −3dB Point − 12 22 dBµ
VO = −3dB Point 42 47 52 dBµ
= 80dBµ 55 70 85 mVrms
AM
Voltage Gain G
Detector Output Voltage V
O(DET)2VI
V1
VI = 30dBµ 28 50 72 mVrms
= 60dBµ 40 60 82 mVrms
Total Harmonic Distortion THD2 VI = 60dBµ − 1.0 2.0 %
Signal to Noise Ratio S/N2 VI = 60dBµ 37 43 − dB
2
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AM/FM TUNER S1A2297X01
TEST CIRCUIT 1
Vcc(3V)
0.01µF
KSC945
FM OSC
2.2k
100µF
14 1316 15
Ω
S1A2297X01
1 2 3 4 7
Lx
15pF
12 11 10
5 6
220
0.01µF
µ
F
9
8
3
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S1A2297X01 AM/FM TUNER
TEST CIRCUIT 2
AM RF IN
FM RF IN
FM IF IN
0.022µF
75
Ω
BPF
SW1
L2
15pF
12 11 10
2.2mH
20k
Ω
FMAM
A B
0.03µF
14 1316 15
S1A2297X01
1 2 3 4 7
270
C-F
SFE 10.7MAS
Ω
SFU455C5
5 6
3.3µF
C-FC-F
B
A
Vcc(3V)
L3L1
4700pF
F
µ
0.01
220µF
* 10.7MHz
SW2
2.2µF
20k
Ω
4700pF
0.047µF
SW3
1k
Ω
9
FM AM
A B
8
C-F
SFE 10.7MAS
* CDA 10.7MG 91-A (MURATA)
4
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AM/FM TUNER S1A2297X01
COIL SPEC
Seal Name L1 L2 L3
TURNS 3-1 2 2/8 1-3 2 6/8 1-2 12T
− − − − − 2-3 73T
WIRE (mm) 0.5 UEW 0.5 UEW 0.08 UEW
CONNECTION
(BOTTOM VIEW)
S
3
2
4
5
3
2
4
5
3
2
4
5
(KOREA TOKO)
1
6
1
S
6
1
S
6
FREQUENCY 100MHz 100MHz 792kHz
TUNING CAPACITY − − −
INDUCTANCE − −
268uH
± 8%min
UNLOADED Q − − 70min
Seal Name L1 L2 L3
TURNS 3-1 2 2/8 1-3 2 6/8 1-2 12T
− − − − − 2-3 73T
WIRE (mm) 0.5 UEW 0.5 UEW 0.05 UEW
3
4
3
4
3
CONNECTION
(BOTTOM VIEW)
2
1
5
6
2
1
5
6
2
1
KWANG SUNG PART NO KST-FO2 FST-FR2 FSI-AO2
FREQUENCY 100MHz 100MHz 796kHz
TUNING CAPACITY − − −
INDUCTANCE − −
268 uH
± 8% min
UNLOADED Q − − 70 min
4
5
6
5
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S1A2297X01 AM/FM TUNER
APPLICATION CIRCUIT
Vcc(3V)
FM ANT
22pF
BPF
22pF
13pF
FMAM
0.003µF
14 1316 15
5pF
15pF
12 11 10
4700pF
S1A2297X01
1 2 3 4 7
SFU455C5
5 6
3.3µF
C-F
0.01µF
* 10.7MHz
2.2µF
DET OUT
9
8
C-F
SFE 10.7MAS
*CDA 10.7MG 91-A (MURATA)
6
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