Samsung S1A0900X01-A0B0, S1A0900X01-S0B0 Datasheet
AM/FM TUNER + MPX S1A0900X01
INTRODUCTION
The S1A0900X01 is a monolithic integrated circuit which consists of a 3V one-chip tuner and FM multiplex for AM/FM radios
and head-phone radios.
24−SDIP−300
FUNCTIONS
• FM Stage: RF/IF/AF amp, Quadrature Detector, MIX, OSC,
Tuning Indicator.
• AM Stage: RF/IF/AF amp, Detector, MIX, OSC, AGC, Tuning
Indicator.
• MPX Stage: PLL amp, Decoder, Flip Flop, VCO Stop, Phase
Detector, Stereo Indicator.
24−SOP−375
FEATURES
• 3 V one-chip tuner with built-in FM Multiplex
• No AM detect coil, IF coupling capacitor, FM IF by-pass capacitor needed
• Built-in tuning indicator function
• Built-in AM/FM selection switch
• Minimum number of external parts required
• Wide operating voltage range: VCC = 1.8V − 7V
• Low distortion (FM IF: 0.4%, AM IF: 1%, 0.2% (Typ)
OPDERING INFORMATION
Device Package Operature Temperature
S1A0900X01-A0B0 24−SDIP−300
S1A0900X01-S0B0 24−SOP−375
− 20°C − +75°C
1
S1A0900X01 AM/FM TUNER + MPX
BLOCK DIAGRAM
AM RF FM RF
RF VCCFM OSC AM OSC DET OUT MPX IN PH1 PH2 OSC
AF
BUFFER
AM/F/E
AM/FM DET
FM/F/E
AGC
1 122 113 104 5 6 7 8 9
FM RF IN GND FM MIX AM MIX AGC V
CC
AF
IF
AM IF FM IF GND TUNING ST LED QUAD
PHASE
DETECTOR LAMP
AF
IF
L-CH
OUT
OSC
TRIGGER
FF
LED DRIVER
LED DET
R-CH
OUTOUTIN
131415161718192021222324
STEREO
DECODER
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic Symbol Value Unit
Supply Voltage V
Power Dissipation P
Operating Temperature T
Storage Temperature T
LED Driver Voltage V
LED Driver Current I
CC
D
OPR
STG
DR
DR
8 V
1200 mW
−20 − +75 °C
−55 − +150 °C
10 V
10 mA
2
AM/FM TUNER + MPX S1A0900X01
ELECRTRICAL CHARACTERISTICS
(Ta = 25°C, VCC = 3V, unless otherwise specified)
• FM F/E: f = 98MHz, fm = 1kHz, ∆f = 22.5kHz, AM: f = 1kHz, 30 % Mod
• FM IF: f = 10.7MHz, fm = 1kHz, ∆f = 22.5kHz, MPX: f = 1kHz, L + R = 90 %, P = 10%, VI = 150mV
Characteristic Symbol Test Conditions Min. Typ. Max. Unit Test Circuit
Quiescent Circuit Current
-3 dB Limiting Sensitivity V
F/E
Oscillation Voltage V
-3 dB Limiting Sensitivity V
Detector Output Voltage V
FM
Signal to Noise Ratio S/N
IF
Total Harmonic Distortion THD
AM Rejection Ratio AMR VI = 80dBµ 22 32 − dB 1
Tuning Indication Voltage V
Voltage Gain G
Detector Output Voltage V
AM
Signal to Noise Ratio S/N
IF
Total Harmonic Distortion THD
Tuning Indication Voltage V
I
CCQ1
I
CCQ2
I (LIM)1VO
OSCfOSC
I(LIM)2VO
O (DET)1VI
O(DET)2VI
FM, VI = 0 8.4 13.2 20.0 mA 1
AM, VI = 0 4.4 8.4 13.4 mA 1
VI = 80dBµ 60 70 − dB 1
1
VI = 80dBµ − 0.4 1 % 1
1
I
LI
VI = 26dBµ 40 70 110 mV 1
V1
VI = 60dBµ 32 42 − dB 1
2
VI = 60dBµ − 1 2 % 1
2
I
L2
= −3dB − 10 − dBµ 1
= 98MHz 40 70 110 mV 2
= −3dB 40 46 53 dBµ 1
= 80dBµ 55 80 110 mV 1
= 1mA 45 51 56 dBµ 1
LED
= 60dBµ 55 80 110 mV 1
= 1mA 20 25 30 dBµ 1
LED
3
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