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PDF SA2104C Data sheet ( Hoja de datos )
| Número de pieza | SA2104C | |
| Descripción | 3V AM/FM +MPX TUNER IC | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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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
1 page  
(Continued)
Pin No.
Symbol
Pin description
SA2104C/SA2104CS
Internal circuit
Pin voltage (Typ.)
(V)
AM FM
7 FMIF IN
FMIF input.
3.0 3.0
8 GND
GND for AM, FM IF, FM
MPX stage.
--
00
9 AGC
Auto gain control pin.
00
10 QUAD
FM Quad
11 R-OUT
12 L-OUT
Right/Left channel output
port.
13 LPF2
14 LPF1
LPF terminal for phase
detector
Bias terminal for AM/FM
SW circuit
V13=GND→AM
V13=OPEN→FM
LPF terminal for
synchronous detector
VCO stop terminal
V14=GND→VCO STOP
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
2.5 2.2
1.2 1.2
0 2.2
0.7 2.4
(To be continued)
Rev: 1.1 2005.10.26
Page 5 of 13
5 Page 
ELECTRICAL CHARACTERISTICS CURVES (Continued)
SA2104C/SA2104CS
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
Rev: 1.1 2005.10.26
Page 11 of 13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SA2104C.PDF ] | |
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