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Silan Microelectronics

SA2104CS Datasheet Preview

SA2104CS Datasheet

3V AM/FM +MPX TUNER IC

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SA2104C/SA2104CS
3V AM/FM +MPX TUNER IC (FOR DIGITAL TUNING SYSTEM)
DESCRIPTION
The SA2104C/SA2104CS are single-chip tuner ICs that incorporate
FM/AM and MPX circuits, which are designed for portable radios and 3V
headphone radios.
The SA2104C/SA2104CS are suitable for digital tuning system
applications. FM local oscillation voltage is set up low relativity, for NEW
FCC.
S D IP -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.
SA2104C
SA2104CS
Package
SDIP-24-300-1.778
SSOP-24-300-0.65
BLOCK DIAGRAM
24 21
FM FM
RFOUT OSC
19
OSC
OUT
18 17
ST LED IF REQ
15
MPX IN
23
RF
VCC
2
FM
FM RF
RFIN
1
RF
GND
20
AM
OSC
AM
OSC
FM
OSC
BUF
ST
SW
IF
REQ
AF
ST/MO
FM/AM
FM
MIX
BUF
Level
det
IF
BUFF
1/8
Stereo
Decoder
14
LPF1
13
LPF2
11
AM
DET
MUTE ROUT
12
LOUT
22
AM
RFIN
AM AM
FM
MIX
AGC
AM IF
FM IF
DET
MIX
OUT 4
AGC
9
AM
IFIN 6
FM
IFIN
7
QUAD
10
DET
OUT 16
VCC 5
GND 8
AM LOW
CUT
3
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
Rev: 1.1 2005.10.26
Page 1 of 13




Silan Microelectronics

SA2104CS Datasheet Preview

SA2104CS Datasheet

3V AM/FM +MPX TUNER IC

No Preview Available !

SA2104C/SA2104CS
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
SA2104C
Power Dissipation
SA2104CS
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 SA2104C of 4mW/°C for SA2104CS.
OPERATING 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
Quiescent Current
ICC(FM) Vin=0, FM mode
ICC(AM) Vin=0, AM mode
Input Limiting Voltage
F/E
Local OSC BUFFER
OUTPUT Voltage
Vin=60 dBµV EMF
Vin(lim)
-3dB limiting
VOSC (buff)
fOSC=108.7MHz
FM
Input Limiting Voltage
Vin=80dBµV EMF
Vin(lim) IF
-3dB limiting
Recovered Output Voltage VOD Vin=80dBµV EMF
Signal To Noise Ratio
S/N Vin=80dBµV EMF
Total Harmonic Distortion THD Vin=80dBµV EMF
AM Rejection Ration
FM IF
IF Count Output
Frequency
AMR Vin=80dBµV EMF
fIF (FM) Vin=80dBµV EMFSW7: ON
IF Count Output Voltage
Vin=80dBµV EMF
VIF (FM)
SW7: ON
IF Count Output
Sensitivity
IF sens
SW7: ON
(FM)
Gain
GV Vin=27dBµV EMF
Recovered Output Voltage VOD Vin=60dBµV EMF
Signal To Noise Ratio
S/N Vin=60dBµV EMF
Total Harmonic Distortion THD Vin=60dBµV EMF
AM
Local OSC Buffer Output VOSC (buff)
fOSC=1.45MHz
Voltage
AM
IF Count Output Voltage
Vin=60dBµV EMF,
VIF (AM)
SW7: ON
IF Count Output
Sensitivity
IF sens
SW7: ON
(AM)
Min.
--
--
--
Typ.
11.0
7.5
10
Max.
18
14
--
Unit
mA
dBµV
EMF
23 35
-- mVrms
dBµV
35 38 47
EMF
200 270 300 mVrms
-- 75 -- dB
-- 0.3 --
%
-- 60 -- dB
1.3373 1.3375 1.3377 MHz
200 260
-- mVp-p
dBµV
40 45 50
EMF
20 38 70 mVrms
60 90 120 mVrms
-- 41 -- dB
-- 0.7 --
%
44 66
-- mVrms
200 250
-- mVp-p
dBµV
38 43 48
EMF
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
Rev: 1.1 2005.10.26
Page 2 of 13


Part Number SA2104CS
Description 3V AM/FM +MPX TUNER IC
Maker Silan Microelectronics
Total Page 13 Pages
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