Samsung S1A0903X01-R0B0 Datasheet

Preliminary

AM/FM TUNER + MPX + PLL S1A0903X01

GENERAL DESCRIPTION

OVERVIEW

• AM : AM RF Mixer, AM OSC, AM_IF AMP, AM Detector, AGC,
Tuning LED Driver,

• OSC Buffer, IF Buffer

• FM : RF Amp, FM RF Mixer, FM OSC, FM_IF AMP, Quadrature
Detector,

• Tuning LED Driver, OSC Buffer, IF Buffer

• MPX : PLL, Stereo Decoder, Stereo LED, MPX VCO SELF­Adjustment

• DTS : Prescaler, AM/FM Programmable Divider, AM/FM IF Counter,

• Lock Detector, LED Controller

• Microprocessor Interface

44−QFP−1010B

FEATURES

• Adopt New FCC

• AM/FM 1 Chip DTS with PLL

• MPX-VCO SELF-Adjustment

• Programmable Divider
— FM : 10 - 160MHz <Pulse Swallow Technique>
— AM : 2 - 40MHz <Pulse Swallow Technique>

0.5 - 10MHz <Direct Division Technique>

• IF Counter : 0.4 - 12MHz <AM/FM IF Counting>

• Reference Frequency
— Selectable Crystal (75kHz, 3.6MHz, 7.2MHz, 10.8MHz) Choice

• Package : 44 QFP

ORDERING INFORMATION

Device Package Operating Temperature

S1A0903X01-R0B0 44-QFP-1010B −20°C - +75°C

1

Preliminary

AGCCAP

DETOUT

FMQUAD

LOUT ROUT TUNLED STLED VSSA AOUT AIN PD VSSX XIN XOUT

SERIAL INTERFACE

S1A0903X01 AM/FM TUNER + MPX + PLL

BLOCK DIAGRAM

FM

AM

NC
22

OSC

OSC

VREG
21

1/2

AM

MIX

VDD
20

BB

TEST3

TEST2

19

18

SWALLOW

PRESCALER

MAIN

TEST1

VSSD

17

16

TEST CONTROL

[1:0]

TEST

N[3:0]N[16:4]

COUNTER

COUNTER

CE

DI

15

14

[1:0]

DOC

TEST[1:0]
MOST

TUNLEDC
DLC

DOC[1:0]

UL[1:0]
DZ[1:0]
GT[1:0]
IFS[1:0]
R[3:0]

XS[1:0]
MUTE

MUTEC
IFCS
N[15:0]

OS[1:0]

IO[20:0]

DATA SHIFT REGISTER

IF[18:0]

IF

COUNTER

R[3:0]

XS[1:0]

DLC

DZ[1:0]

GT[1:0]

IFCS

CL
13

REF

DIVIDER

PFD

DO
12

LOCK

DETECT

UL[1:0]

PUMP

CHARGE

A

10 11

5 6 7 8 9

33 32 31 30 29 28 27 26 25 24 23

MIXOUT AMLOWCUT GND_RF FMRFIN AMRFIN FMRFOUT VCC_RF AMOSC VDDA FMOSC VCCCAP

TUNLEDC

LED

A A

34

AGC

AM

DET

A

35

AMIFIN

FM

MIX

IFS[1:0]

DET

LEVEL

FM

DET

A

36

FMIFIN

37

VCC

38

B

B

39

40

GND

MPXIN

CONTROL

PD[6:0]

HYS

MOST

41

LPF1

MPX VCO

CONTROL

VCO

42

LPF2

F/F

F/F

DET

PILOT

43

LPF3

F/F

F/F

PHASE

DET

LED

LED

DECODE

44

DRV

DRV

3 4

MUTE

1 2

2

Preliminary

AM/FM TUNER + MPX + PLL S1A0903X01

PIN DESCRIPTION

Pin No. Symbol In/out Function

1 LOUT O Stereo left channel output
2 ROUT O Stereo right channel output
3 TUNLED O Tuning LED
4 STLED O Stereo LED
5 VSSA - Ground
6 AOUT O Connections for the MOS Tr. used for the PLL active LPF.
7 AIN I
8 PD O PLL charge pump output

9 VSSX - Ground
10 XOUT O Crystal oscillator element connection.
11 XIN I

75kHz, 3.6MHz, 7.2MHz, 10.8MHz)

12 DO O Serial data output to the microprocessor
13 CL I Clock used for data synchronization for serial data input (DI) and

serial data output (DO)
14 DI I Serial data input from the microprocessor
15 CE I Chip enable for serial I/O
16 VSSD - Ground
17 TEST1 I/O Only for test
18 TEST2 I/O ­19 TEST3 O ­20 VDD - Regulator voltage input
21 VREG - Regulator voltage output
22 NC - No connection

3