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PDF SA1088 Data sheet ( Hoja de datos )

Número de pieza SA1088
Descripción FM RECEIVER CIRCUIT
Fabricantes Silan Microelectronics 
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No Preview Available ! SA1088 Hoja de datos, Descripción, Manual

Silan
Semiconductors
SA1088
FM RECEIVER CIRCUIT FOR BATTERY
SUPPLY
DESCRIPTION
The SA1088 is a bipolar integrated circuit for use in mono portable
and pocket radios. It is used when a minimum of perpheral
components (of small dimensions and low costs) is important. The
circuit contains a frequency-locked-loop(FLL) system with an
intermediate frequency(IF) of about 70kHz. Selectivity is achieved
by active RC-filters. De-tuning related to the IF and too weak input
signal is suppressed by the mute circuit.
FEATURES
* Equipped with all stages of a mono receiver from antenna to
audio output.
* Mute Circuit
* Search tuning with a single varicap diode
* Mechanical tuning with integrating AFC
* AM application supported
* Power supply polarity protection
* Power supply voltage down to 1.8V
SOP-16
APPLICATION
1. Mechanical tuning: This is possible with or without integrated AFC circuit
2. Electrical tuning: This is realized by one directional(band-up) search tuning facility, including RESET to the
lower-band limit.
PIN CONFIGURATIONS
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MUTE 1
16 TUNE
VOAF 2
15 CAP
LOOP 3
14 GND
VP 4
OSC 5
13 CLIM
SA1088
12 VIRF
IF FB 6
11 VIRF
CLP1 7
10 CLP2
VOIF 8
9 VIIF
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
1
2001-11-22

1 page




SA1088 pdf
Silan
Semiconductors
TEST AND APPLICATION CIRCUIT
Rs=75¡
10k¡ ViRF
EMF
68pF
+3V
16
TUNE
15
CAP
MUTE
1
VOAF
2
MUTE
Disable
VOAF
70nH
14 13 12 11
GND CLIM
VIRF
VIRF
SA1088
LOOP
3
VP
4
OSC IF FB
56
10
CLP2
CLP1
7
78nH
1.2k¡
3.3nF
18pF
10nF
C1
9
VIIF
VOIF
8
Fig. 3 Test circuit and application for mechanical tuning
SA1088
www.DataSheet4U.com
10k¡ ViRF
68pF
+3V
16
TUNE
15
CAP
MUTE
1
VOAF
2
70nH
14 13 12 11
GND CLIM
VIRF
VIRF
SA1088
LOOP
3
VP
4
OSC IF FB
56
10
CLP2
CLP1
7
9
VIIF
VOIF
8
1.2k¡
78nH
3.3nF
18pF
VOAF
10nF
C2
68nF
C1
D1
V101
Fig. 4 Application circuit with AFC for mechanical tuning
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
5
2001-11-22

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