Datasheet S1A0900X01-A0B0, S1A0900X01-S0B0 Datasheet (Samsung)

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

S1A0900X01 AM/FM TUNER + MPX

Characteristic Symbol Test Conditions Min. Typ. Max. Unit Test Circuit

MPX

Maximum Input Voltage V

I(MAX)

CS

Channel Separation

CS
CS

THD

Total Harmonic Distortion

THD

Voltage Gain G

Stereo, THD = 3% 250 350 − mV 1
Stereo, f = 100Hz 35 42 − dB 1

1

Stereo, f = 1kHz 35 42 − dB 1

2

Stereo, f = 10kHz 35 42 − dB 1

3

Mono − 0.2 1 % 1

3

Stereo − 0.2 1 % 1

4

Mono −5 -3 −1 dB 1

V2

Channel Balance CB Mono −2 0 2 dB 1

Lamp on Level

VL

VL

(ON)

(OFF)

Pilot only − 8 16 mV 1

Pilot only 2 6 − mV 1
Lamp Hysteresis HY − − 2 − mV 1
Capture Range CR Pilot only ± 1 ± 3 ± 5 % 1
Signal to Noise Ratio S/N

Mono 60 70 − dB 1

3

4

AM/FM TUNER + MPX S1A0900X01

1C 10.7MHz

AM-RF IN

* POLYESTER FILM CAPACITOR

TEST CIRCUIT 1

Vcc

R-CH OUT

L-CH OUT

LPF

MPX IN

4.7µF

220µF 0.1µF

0.01µF

330pF

10µF

76kHz

Ω

220k

Vcc MONITOR

T

3

1kΩ

2.2µF

DET OUT

4.7µF

0.01µF

12kΩ 10kΩ

1000pF

5.6kΩ

15 14 13

C-F 455kHz

F

µ

0.033

T

2

T

1

270Ω

75Ω

560Ω 560Ω

VIN

FM-IF IN

0.1µF

AM

AM FM

1kΩ

0.33µF

MONO

ST

330pF

30kΩ

L3L2L1

2.2mH

6800pF

2.2kΩ

16

3.3µF

17

3.9kΩ

20 19 18

15pF

0.033µF

22 2124 23

9 10 11 12

8

S1A0900X01

33µF

5 6

1 2 3 4 7

BPF

0.033µF

F

M

24kΩ

0.022µF
75Ω

75Ω 75Ω

VIN

VIN

FM-RF IN

5

S1A0900X01 AM/FM TUNER + MPX

TEST CIRCUIT 2

POWER

8V

220 µF0.01 µF

FM OSC

KSK161

1k Ω

Vcc

L2

470k Ω

470k Ω

5pF

100 µF

16

17

9 10 11 12

8

S1A0900X01

15 14 13

3

2

90pF

4

15pF

0.033 µF

0.033 µF

20 19 18

22 2124 23

5 6

1 2 3 4 7

6

AM/FM TUNER + MPX S1A0900X01

COIL SPECIFICATION

T1 FM IFT (MIX OUT)

3

2

1

T2 AM IFT (MIX OUT)

3

2

1

T3 FM IFT (DET)

3

2

1

L1 FM RF

4

5

6

4

5

6

4

5

6

Co(pF) f

1-3 1-3 4-6

(MHz)

Qo

TURNS

75 10.7 70(min) 11 2

Co(pF) f

1-3 1-3 4-6

(MHz)

Qo

180 455 70(min) 180 15

Co(pF) f

1-3 1-3

(MHz)

Qo

47 10.7 80(min) 14

KOREA TOKO

0.1 mmφ

TURNS

KOREA TOKO

0.08 mmφ

TURNS

KOREA TOKO

0.1 mmφ

3

2

1

L2 FM OSC

3

2

1

L3 AM OSC

3

2

1

4

5

6

4

5

6

4

5

6

f

(MHz)

Qo

TURNS

1-3

100 100 2*(1/2)

f

(MHz)

Qo

TURNS

1-3

100 100 2*(3/4)

f

(KHz)

Qo

TURNS

1-2 2-3

796 80(min) 13 15 288

L

(µH)

0.5 mmφ

0.5 mmφ

KOREA TOKO

0.08 mmφ

7

S1A0900X01 AM/FM TUNER + MPX

T1 FM IFT (MIX OUT)

3

2

1

KSI-FA2

T2 AM IFT (MIX OUT)

3

2

1

KSI-AA1

T3 FM IFT (DET)

3

2

1

KSI-FD3

L1 FM RF

4

5

6

4

5

6

4

5

6

Co(pF)

1-3 1-3 4-6

F

(MHz)

Qo

TURNS

KWANG SUNG

PART NO

75 10.7 70(min) 11 2 KSI-FA2

Co(pF)

1-3 1-3 4-6

F

(MHz)

Qo

TURNS

KWANG SUNG

PART NO

180 455 70(min) 146 14 KSI-AA1

Co (pF)

1-3 1-3

F

(MHz)

Qo

TURNS

KWANG SUNG PART

NO

47 10.7 80(min) 14 KSI-FD3

3

2

1

L2 FM OSC

3

2

1

L3 AM OSC

3

2

1

KST-FR1

KST-FO1

KSI-AO1

4

5

6

4

5

6

4

5

6

F

(MHz)

Qo

100 100 2*(1/2) 0.5m/m KST-FR1

F

(MHz)

Qo

100 100 2*(3/4) 0.5m/m KST-AO1

F

(MHz)

Qo

796 80min 13 73 288 KSI-AO1

TURNS

1-3 WIRE

TURNS

1-3 WIRE

TURNS L

1-2 2-3

(uH)

KWANG SUNG

PART NO

KWANG SUNG

PART NO

KWANG SUNG

PART NO

8

AM/FM TUNER + MPX S1A0900X01

100k

100pF

APPLICATION CIRCUIT

R8

10kΩ

GND

C13

R9

F

µ

0.047

R7

R6

5pF

R5

2pF

5.6uH

VVC1

VCO

C14

1kΩ

C15

VVC2

100kΩ

C12

100kΩ

100kΩ

RF
FM

AM OSC

F

µ

0.047
C16

F

µ

R10

0.01

T1

AM OSC

CT2

430pF

Q2

C9

L2

FM OSC

Q1

C7

L1

L4

CT1

BAND

FM OSC

1000pF

150k Ω

C2

1pF

C10

C11

C8

1000pF

Q3

2.2µF/

15pF

GND

C2223

50V

MUTE

C17

0.047 µF

13

14

15

17 16

18

19

20

21

22

23

24

IF

AUDIO

VCC(9V)

C18

0.047 µF

Q4

12

11

10

9

8

7

6

5

S1A0900X01

4

3

2

1

C6

39pF

C5

22pF

R2

C33

R2101

C29

L3

1/4W

Ω

220

33pF

F

µ

0.1

C20

F

µ

0.047

22µF/10V

C1

C32

T3

0.1µF

T2

AM IFTFM IFT

D1

3.6V/500mW

F/50V

µ

C30

0.047 µF

T4R20

FM DET

1.5k Ω

C31

0.1µF

A450BL

F2

100

C3

F1

SFE10.7M

R18

R12

C26

1kΩ

R14

1kΩ

R16

1kΩ

1kΩ

100pF

C23

1000pF

C24

1000pF

R15

R17

R13

R19

Q6

C2223

100kΩ

C22

Q7

C2223

100k Ω

C25

100pF

Q5

Q8

C21

C2223

C2223

100pF

100kΩ

100kΩ

C27

33PF

R3

Ω

C4

223pF(C)

FM ANT

9

S1A0900X01 AM/FM TUNER + MPX

NOTES

10