Page 1
AM/FM TUNER + MPX S1A0902X01
GENERAL DESCRIPTION
24−SDIP−300
The S1A0902X01 is an AM/FM 1 chip tuner
— AM: RF_AMP, AM MIX, AM OSC, AM_IF AMP, AM detect,
AGC, TUNLED INDICATOR OUTPUT
— FM_FE: RF AMP, MIX, OSC
— FM_IF: IF AMP, Quadrature detect, FM mute, tune indicator
output
— MPX: PLL stereo decoder, stereo indicator output
24−TSSOP
FEATURE
• For new FCC
• AM, FM_FE/IF. MPX 1 chip tuner
• Non adjustment MPX_VCO
• Wide operating voltage range: Vcc = 2.0V − 7V
ORDERING INFORMATION
Device Package Operating Temperature
S1A0902X01-A0B0 24−SDIP−300
S1A0902X01-R0B0 24−TSSOP
−20 − +75°C
1
Page 2
S1A0902X01 AM/FM TUNER + MPX
BLOCK DIAGRAM
22 2124 23
FM
OSC
AM
RF
FM
RF
1 2 3 4 7
AM
MIX
FM
MIX
20 19 18 17
AM
OSC
AGC
DET
AM
AM
15 14 1316
PRE
VCO F/F F/F SW
FUS F/F F/F HYS
FM
DET
IF
FM
PHASE
DET
IF
85 6
PILOT
DET
LEVEL
DET
TUN
LED
9 10 11 12
ST
LED
DECODE
2
Page 3
AM/FM TUNER + MPX S1A0902X01
PIN CONFIGURATION
AM RFINFM RF
OUTRFVCCFMOSCAMOSC
22 2124 23
20 19 18
AFC
MUTE
S1A0902X01
1 2 3 4 7
FM RF
IN
RF
GNDFMMUTE
MIX
OUT
5 6
AGC VCC
DET
OUT
AM IFINFM IF
MPX
IN
17
8
IN
LPF2 LPF1
16
9 10 11 12
GND
15 14 13
TUN
LED
L
OUTROUT
ST
LED
QUAD
3
Page 4
S1A0902X01 AM/FM TUNER + MPX
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Ratings Unit Remarks
Supply Voltage Vs 7 V
Operating Temperature Top − 20 − +75 °C
Storage Temperature Tstg − 55 − +150 °C
Power Dissipation Pdmax 1200 mW
ELECTRICAL CHARACTERISTICS
Ta = 25°C, Vcc = 3V, Unless otherwise specified
FM F/E: f = 98MHz, fm = 1kHz
FM IF: f = 10.7MHz, ∆f = 22.5kHz, fm = kHz
AM IF : f = 1MHz, mod = 30%, fm = 1kHz
MPX : fm = 1kHz, L + R = 90%, Pilot = 10%, Vin = 150mVrms
FE
FM IF
AM IF
Characteristics Test Condition Symbol
Min. Typ. Max.
Input Limiting Voltage -30dB Vlim1 - 12 18 dBu
Logic Oscilation Voltage fosc = 108.7MHz Vosc 40 70 110 mVrms
Input Limiting Voltage -3dB Vlim2 35 40 45 dBu
Detection Output Voltage Vin = 80dBu Vod1 55 80 110 mVrms
FM Mute Attenuation Ratio Vin = 80dBu, SW3 = on Amute 60 70 - dB
Signal to Noise Ratio Vin = 80dBu S/N1 55 65 - dB
Total Hamonic Distortion Vin = 80dBu THD1 - 0.2 1 %
AM Rejection Ratio Vin = 80dBu AMR 40 50 - dB
Tuning LED On Voltage IL = 1mA VL1 40 45 50 dBu
Detection Output Voltage1 Vin = 26dBu Vod2 20 40 60 mVrms
Detection Output Voltage2 Vin = 60dBu Vod3 55 70 110 mVrms
Signal to Noise Ratio Vin = 60dBu S/N2 32 42 - dB
Total Hamonic Distortion Vin = 60dBu THD2 - 1 2 %
Tuning LED On Voltage IL = 1mA VL2 20 25 30 dBu
SPEC
Unit
4
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AM/FM TUNER + MPX S1A0902X01
MPX
Characteristics Test Condition Symbol
Unit
Min. Typ. Max.
Maximum Input Voltage Stereo, THD = 3% Vi(max) 300 450 - mVrms
Stereo, f = 100Hz CS1 25 45 - dB
SPEC
Channel Separation
Stereo, f = 1kHz CS2 32 45 - dB
Stereo, f = 10kHz CS3 25 45 - dB
Mono THD3 - 0.2 1 %
Total Hamonic Distortion
Stereo THD4 - 0.2 1 %
Voltage Gain Mono, L-Channel AV3 -5 -1 0.5 dB
Channel Balance Mono CB -1.5 0 1.5 dB
Stereo LED On Level Pilot only VL(on) - 8 16 mVrms
Stereo LED Off Level Pilot only VL(off) 1 6 - mVrms
Lamp Hysteresis LED on off HY - 2 - mVrms
Capture Range Pilot only CR - ± 4 - %
Signal to Noise Ratio Mono S/N3 65 75 - dB
5
Page 6
S1A0902X01 AM/FM TUNER + MPX
PIN DESCRIPTION
Terminal voltage: Typical terminal voltage at no signal with test circuit.
VCC = 3V, Ta = 25°C
Pin No. Characteristic Internal Circuit
Termianl Voltage
AM FM
23
1 FMRFIN 0 0.8
100pF
1
1K
RF GND
2
2 RFGND 0 0
19
VCC
6
3 FMMUTE 2.2 2.2
GND
9
VCC
6
FM MIX
4 MIXOUT 3.0 2.9
RF GND
2 9
AM MIX
4
GND
6
Page 7
AM/FM TUNER + MPX S1A0902X01
Pin No. Characteristic Internal Circuit
Termianl Voltage
AM FM
6VCC
1K
5 AGC(AMAGC) 0 0
GND
2K
9
1K
5
6 VCC - 3.0 3.0
VCC
6
3K
7
7 AMIFIN 3.0 3.0
GND
9
VCC
6
330
330
8 FMIFIN 3.0 3.0
8
GND
9
9 GND - 0 0
10
TUNLED
(Tuning LED)
- -
GND109
7
Page 8
S1A0902X01 AM/FM TUNER + MPX
Pin No. Characteristic Internal Circuit
19KHZ
11
STLED
(Stereo LED)
VCC
GND
6
9
12
QUAD
12
(FM QUAD.
Detector)
Termianl Voltage
AM FM
11
- -
2.5 2.2
13
14
15
R-OUT (R-ch out)
L-OUT (L-ch out)
LPF1
- LPF terminal for
sync. Detector
- Bias terminal for
MO/ST SW ckt.
V16 = Vcc
→ MONO
V16 = OPEN →
STEREO
GND
VCC
GND
GND 9
9
6
1.1 1.1
13/
5k
Ω
9
15
14
MO/ST
SW
2.2 2.2
8
Page 9
AM/FM TUNER + MPX S1A0902X01
Pin No. Characteristic Internal Circuit
Termianl Voltage
AM FM
LPF2
- LPF terminal for
16
AM/FM
SW
phase detector
16
- Bias terminal
for AM/FM SW
3 2.2
ckt.
V16=Vcc→AM
V16=OPEN→FM
9
GND
17 MPXIN 0.8 0.8
17
9
GND
6
VCC
AM
FMBIAS
FM
500
18
1.0 0.9
18 DETOUT
AMBIAS
GND
9
AMBIAS: AM mode → ON, FM mode →OFF
FMBIAS: AM mode → OFF, FM mode →ON
19
19 AFC - -
9
Page 10
S1A0902X01 AM/FM TUNER + MPX
Pin No. Characteristic Internal Circuit
Termianl Voltage
AM FM
20
VCC
20 AMOSC 3.0 3.0
GND69
21
RF VCC
6
21 FMOSC 3.0 3.0
GND
9
22 REVCC - 3.0 3.0
23 FMRFOUT cf. pin 1 3.0 3.0
VCC
6
24
22
24 AMRFIN 3.0 3.0
GND
9
10
Page 11
AM/FM TUNER + MPX S1A0902X01
RF
Input
Level(dBu)
THD(%)
Iccq(mA)
AM
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
THD - AM Mod.
Vcc=3V
fin=1MHz
fm=1KHz
0 10 20 30 40 50 60 70 80 90
AM Modulation(%)
AM
8
7
6
5
4
3
2
1
0
2 3 4 5 6 7 8 9
Iccq - Vcc
Vcc(V)
Vo2,Vo3
(dB)
Vo(dB)
AM
Vo2,Vo3 - AM Mod.
200
180
160
Vo2
140
120
100
Vo3
80
60
40
20
0
0 10 20 30 40 50 60 70 80 90
AM Modulation(%)
AM
20
12
4
-4
-12
Vin=60dBu V
fin=1MHz
fm=1KHz
-20
2 3 4 5 6 7 8 9
Vo - Vcc
Vcc(V)
Vcc=3V
fin=1MHz
fm=1KHz
Vo1,S/N,AMR
(dB)
FM
Vo1,S/N,AMR - RF lev.
Vcc=3V
fin=98MHz fm=1KHz
10
0
-10
-20
-30
-40
-50
-60
-70
RF Input Level(dBu)
¥Äf=¡¾
Vo1
AMR
S/N1
22.5KHz
THD (%)
FM
Vcc=3V
fin=98MHz fm=1KHz
4.00
2.86
1.43
1.00
0.86
0.71
0.57
0.43
0.29
0.14
0.10
THD - RF lev.
¥Äf=¡¾
22.5KHz
11
Page 12
S1A0902X01 AM/FM TUNER + MPX
Vo1,S/N
(dB)
Vo1(dB)
FM
Vo1,S/N - IF lev.
Vcc=3V
fin=10.7MHz fm=1KHz
10
0
-10
-20
-30
-40
-50
-60
-70
¥Äf=¡¾
IF Input Level(dBu)
FM
Vo1 - IF freq.
Vcc=3V Vin=80dBuV
fin=10.7MHz fm=1KHz
5
0
-5
-10
-15
-20
22.5KHz
Vo1
S/N1
THD(%)
THD(%)
FM
3.0
2.5
2.0
1.5
1.0
0.5
0.0
THD - IF lev.
Vcc=3V
¥Äf=¡¾
fin=10.7MHz fm=1KHz
IF Input Level(dBu)
FM
Vcc=3V V in=80dBuV
fin=10.7MHz f m=1KHz
8
7
6
5
4
3
2
1
0
THD - IF freq.
22.5K
22.5KHz
75K
Vo1,Vlim1
(dB)
IF Input Frequency
Deviation ( KHz)
FM
Vo1,Vlim1 - Vcc
fin=10.7MHz fm=1KHz
¥Äf=¡¾
10
0
-10
-20
-30
-40
-50
22.5KHz Vin=80dBuV
Vo1
Vlim1
0 1 2 3 4 5 6 7 8 9 10
Vcc (V)
Icc(mA)
IF Input Frequency Deviation
(KHz)
FM
Icc - Vcc
14
12
10
8
6
4
2
0
0 1 2 3 4 5 6 7 8 9 10
Vcc (V)
12
Page 13
AM/FM TUNER + MPX S1A0902X01
fvco(KHz)
fvco(KHz)
THD(%)
THD(%)
MPX
THD - Vcc
2
L+R=135mVrms
P=15mVrms
fm=1KHz
1.6
1.2
0.8
0.4
0
0 1 2 3 4 5 6 7 8 9 10
Vcc(V)
MPX
1
Vcc=3V
L+R=135mVrms
P=15mVrms
0.8
0.6
0.4
THD - fm
Sep(dB)
Sep(dB)
MPX
80
L+R=135mVr ms
P=15mVrms
fm=1KHz
64
48
32
16
0
0 1 2 3 4 5 6 7 8 9 10
Sep - Vcc
Vcc(V)
MPX
80
Vcc=3V
L+R=135mVrms
P=15mVrms
64
48
32
Sep - fm
THD(%)
0.2
0
0.1 1 3 5 7 9 11 13 15 17 19
fm(KHz)
MPX
THD - fvco
2
Vcc=3V
L+R=135mVrms
P=15mVrms
1.6
fm=1KHz
1.2
0.8
0.4
0
18.0 18.2 18.4 18.6 18.8 19.0 19.2 19.4 19.6 19.8 20.0
Sep(dB)
16
0
fm(KHz)
MPX
Sep - fvco
80
Vcc=3V
L+R=135mVrms
P=15mVrms
64
fm=1KHz
48
32
16
0
18.0 18.2 18.4 18.6 18.8 19.0 19.2 19.4 19.6 19.8 20.0
13
Page 14
S1A0902X01 AM/FM TUNER + MPX
fvco
(KHz)
LEDoff
(mVrms)
MPX
fvco - Vcc
25
24
23
22
21
20
19
18
17
16
15
0 1 2 3 4 5 6 7 8 9 10
Vcc(V)
MPX
LEDoff - Vcc
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10
Vcc(V)
LEDon
(mVrms)
MPX
LEDon - Vcc
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10
Vcc(V)
14
Page 15
AM/FM TUNER + MPX S1A0902X01
AM-RF
TEST CIRCUIT
VCC
OUT
0.1µF
4.7K
R-OUTL- OUT
390
10µF
DET OUT
LPF
MPX
4.7u
56K
IN
F
330pF
220µF
0.01µF
4.7µF
10.7MHz
0.01µF
µ
4.7
ST
MO
SW1
0.33µF
1K
3.3µF
0.1µF
AM
330p
SW2
FM
ROUTLOUT
15 14 13
16
LPF2 LPF1
17
MPX
DET
AFC
IN
OUT
QUAD
ST
LED
LED
TUN
GND
FM
IF IN
AM
IF IN
560
560
9 10 11 12
8
10.7MHz
455kHz
S1A0902X01
20 19 18
AM
OSC
RF
OSC
AGC VCC
MIX
5 6
OUT
4.7µF
330
270
IN
FM-IF
22 2124 23
RF
0.01µF
FM
2.7mH
2K
0.022µF
AM
75
75
VCC
RF OUT
RF IN
IN
FM
RF
FM
MUTE
GND
RF IN
SW3
1 2 3 4 7
BPF
IN
FM-RF
75
15
Page 16
S1A0902X01 AM/FM TUNER + MPX
0.033
VCC
0.1µF
220µF
8V
POWER
470k
0.01u
220u
5p
2SK161
470k
0.033µF
FM OSC
M
ROUTLOUT
15 14 13
16
LPF2 LPF1
17
IN
MPX
DET
OUT
AFC
20 19 18
AM
OSC
RF
OSC
22 2124 23
RF
VCC
QUAD
ST
LED
LED
TUN
9 10 11 12
GND
8
FM
IF IN
AM
IF IN
S1A0902X01
5 6
AGC VCC
MIX
OUT
FM
MUTE
µF
16
FM
RF OUT
AM
RF IN
RF
FM
GND
RF IN
1 2 3 4 7
Page 17
AM/FM TUNER + MPX S1A0902X01
FM ANT
APPLICATION CIRCUIT
VCC
0.1µF
220µF
0.01µF
4.7µF
10.7MHz
CR
R-OUTL- OUT
4.7µF
0.01µF
560Ω
0.1µF
3.3kΩ
1µF
0.1µF
AM
SW2
330pF
100kΩ
1µF
100kΩ
FM
F
µ
4.7
15 14 13
16
17
9 10 11 12
8
CF1
ST
MO
SW1
S1A0902X01
5 6
1 2 3 4 7
7pF
0.01µF
* 1kΩ
Note1
20 19 18
22 2124 23
CF2
F 455kHz
µ
4.7
SW3
560Ω
10.7MHz
Note 2
*330Ω
AM ANT
BPF
B.P.F : GFMB7 (KOREA SANGSHIN ELECTRIC CO.Ltd)
CF1 (455kHz) : SFU455B (MURATA CO Ltd)
CF2 (10.7MHz) : SFE10MA5 (MURATA CO.Ltd)
CR (10.7MHz) : CDA10.7MG(103-A) (MURATA CO. Ltd) SAMPLE NO
* Note 1 : Add Register 1kohm pin 23)
17
Page 18
S1A0902X01 AM/FM TUNER + MPX
COIL SPECIFICATION
L1 FM RF
3
2
1
L2 FM SOC
3
2
1
T1 AM OSC
3
2
1
4
5
6
4
5
6
4
5
6
f
(MHz)
100 100 2 1/2 0.5mmφ
f
(MHz)
100 100 2 3/4 0.5mmφ
f
(MHz)
796 115 13 73 0.08mmφ
Qo TURNS
1-4
Qo TURNS
1-3
TURNS
Qo
1-3 2-3 KOREA TOKO
L
(uH)
T2 AM IFT (MIX OUT)
3
2
1
18
4
5
6
Co (pF)
1-3 1-3 4-6 KOREA TOKO
f
(MHz)
Qo
TURNS
180 455 120 180 15 0.08mmφ
Page 19
AM/FM TUNER + MPX S1A0902X01
L1 FM RF
3
2
1
KST-FR1
L2 FM OSC
3
2
1
KST-FO1
T1 AM OSC
3
2
1
KS50-SA0
4
5
6
f
(MHz)
Qo
TURNS
1-4 WIRE
KWANG SUNG
PART NO
100 80 2*(1/2) 15 KST-FR1
4
5
6
f
(MHz)
Qo
TURNS
1-4 WIRE
KWANG SUNG
PART NO
100 80 2*(3/4) 0.5m/m KST-FO1
4
5
6
f
(MHz)
Qo
TURNS
1-3 2-3
L
(uH)
KWANG SUNG
PART NO
796 60 18 94 270 KS50-SA0
T2 AM IFT (MEX OUT)
3
2
1
4
5
6
KS50-SAA
Co (pF)
1-3 1-3 4-6
f
(MHz)
Qo
TURNS
KWANG SUNG
PART NO
180 455 40 182 15 KS50-SAA
19
Page 20
S1A0902X01 AM/FM TUNER + MPX
NOTES
20
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