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SA2104S Datasheet Preview

SA2104S Datasheet

3V AM/FMMPX TUNER IC

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SA2104/SA2104S
3V AM/FM+MPX TUNER IC(FOR DIGITAL TUNING SYSTEM)
DESCRIPTION
The SA2104/SA2104S are single-chip tuner ICs that incorporate
FM/AM and MPX circuits, which are designed for portable radios and 3V
headphone radios.
The SA2104/SA2104S are suitable for digital tuning system
applications. FM local oscillation voltage is set up low relativity, for NEW
FCC.
SDIP-24-300-1.778
FEATURES
* Operating supply voltage range: VCC=1.8~10V (Tamb=25°C)
* For NEW FCC
* FM/AM and MPX integrated in a single-chip.
* Build in FM/AM IF count buffer.
FM: 1.3375MHz (1/8 dividing)
AM: 450kHz
* Build in mute circuit for IF count output according to field strength.
* Build in FM MPX VCO circuit
* Build in FM/AM OSC buffer output for DTS applications.
* Build in AM low cut circuit
* Build in stereo indicator.
* Low supply current. (VCC=3V, Tamb=25°C)
ICCq (FM)=11.0mA (Typ.)
ICCq (AM)=7.5mA (Typ.)
SSOP-24-300-0.65
ORDERING INFORMATION
Part No.
SA2104
SA2104S
Package
SDIP-24-300-1.778
SSOP-24-300-0.65
www.DataShBeLetO4UC.cKomDIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.07.31
Page 1 of 13




Silan Microelectronics

SA2104S Datasheet Preview

SA2104S Datasheet

3V AM/FMMPX TUNER IC

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SA2104/SA2104S
MAXIMUM RATINGS (Tamb=25°C)
Parameter
Symbol
Rating
Unit
Maximum Supply Voltage
VCC
14
V
Indicator Drive Current
ILED 10 mA
Indicator Voltage
VLED
8
V
SA2104
Power Dissipation
SA2104S
PD (note)
1200
500
mW
Operating Temperature
Topr -20~+70
°C
Storage Temperature
Tstg -40~+125
°C
Note: Derated above Tamb=25°C in the proportion of 9.6mW/°C for SA2104 of 4mW/°C for SA2104S.
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Tamb=25°C, VCC=3V, F/E : f=98 MHz,
fm=1 kHz ,FM IF : f=10.7 MHz, f =±22.5 kHz, fm= 1 kHz . AM : f=1 MHz, MOD=30%, fm=1 kHz. MPX: fm=1kHz)
Parameter
Symbol
Test Condition
Min. Typ. Max. Unit
Quiescent Current
ICC(FM) VIN=0, FM mode
ICC(AM) VIN=0, AM mode
-- 11.0 18
mA
-- 7.5 14
VIN=60 dBµV EMF
Input Limiting Voltage
Vin(lim)
-3dB limiting
F/E
Local OSC BUFFER VOSC (buff)
FOSC=108.7MHz
OUTPUT Voltage
FM
-- 10
23 35
dBµV
--
EMF
-- mVrms
Input Limiting Voltage
VIN=80dBµV EMF
Vin(lim) IF
-3dB limiting
dBµV
35 38 47
EMF
Recovered Output Voltage VOD VIN=80dBµV EMF
200 270 300 mVrms
Signal To Noise Ratio
S/N VIN=80dBµV EMF
-- 75 -- dB
Total Harmonic Distortion
www.DataSheFeMt4UA.cMomRejection Ration
IF IF Count Output
Frequency
THD
AMR
fIF (FM)
VIN=80dBµV EMF
VIN=80dBµV EMF
VIN=80dBµV EMF
SW7: ON
-- 0.3 --
%
-- 60 -- dB
1.3373 1.3375 1.3377 MHz
IF Count Output Voltage
VIN=80dBµV EMF
VIF (FM)
SW7: ON
200 260
-- mVp-p
IF sens
IF Count Output Sensitivity
SW7: ON
(FM)
dBµV
40 45 50
EMF
Gain
GV VIN=27dBµV EMF
20 38 70 mVrms
Recovered Output Voltage VOD VIN=60dBµV EMF
60 90 120 mVrms
Signal To Noise Ratio
S/N VIN=60dBµV EMF
-- 41 -- dB
Total Harmonic Distortion
THD VIN=60dBµV EMF
AM Local OSC Buffer Output VOSC (buff)
fOSC=1.45MHz
Voltage
AM
IF Count Output Voltage VIF (AM) VIN=60dBµV EMF, SW7: ON
IF sens
IF Count Output Sensitivity
SW7: ON
(AM)
--
44
200
38
0.7
66
250
43
-- %
-- mVrms
-- mVp-p
dBµV
48
EMF
(TO be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.07.31
Page 2 of 13


Part Number SA2104S
Description 3V AM/FMMPX TUNER IC
Maker Silan Microelectronics
Total Page 12 Pages
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