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
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