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SA9801 Schematic ( PDF Datasheet ) - Silan Microelectronics

Teilenummer SA9801
Beschreibung SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR
Hersteller Silan Microelectronics
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Gesamt 7 Seiten
SA9801 Datasheet, Funktion
SA9801
SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR
DESCRIPTION
The SA9801 is a monolithic integrated circuit for vision and sound IF
signal processing in TV and VTR sets and multimedia front-ends.
FEATURES
Suitable for negative vision modulation
Applicable for IF frequencies of 38.9, 45.75 and 58.75 MHz
Gain controlled wide-band Vision Intermediate Frequency (VIF)
amplifier (AC-coupled)
True synchronous demodulation with active carrier
regeneration (ultra-linear demodulation, good intermodulation
figures, reduced harmonics and excellent pulse response)
Peak sync pulse AGC
Video amplifier to match sound trap and sound filter
AGC output voltage for tuner with fixed resistor for takeover
point setting
APPLICATIONS
AFC detector without extra reference circuit
TV, VTR, PC and stb applications.
Alignment-free FM-PLL detector with high linearity
Stabilizer circuit for ripple rejection and to achieve constant
output signals
5 to 9 V positive supply voltage range
Low power consumption of 300 mW at 5 V supply voltage.
ORDERING INFORMATION
Part No.
SA9801
Package
SOP-20-375-1.27
Marking
SA9801
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0 2009.06.05
Page 1 of 7






SA9801 Datasheet, Funktion
SA9801
TYPICAL APPLICATION CIRCUIT
VP=5V(9V)
10 F
10nF
2.2 F
20 19 18
22K
(62K
AFC
330 1V(p-p) Video and intercarrier
22K
(62K
0.1 F
Sound
trap
560
(1) 15 H
Sound
17 16 15 14 13 filter 12
Tuner AGC
R1(1) R2(2)
11
SA9801
Visio
IF
50
1
SAW
filter
G1962
IF input
234567
13k
Takeover point
Sound mute
390
0.1 F
(1) See table 1
(2) Depends on tuner
8 9 10
2.2K
R3
2.2 F
22nF
PARAMETER
IF frequency
VCO
frequency
Table1 Oscillator circuit for different TV standards
EUROPE
38.9 MHz
USA
45.75 MHz
77.8 MHz
91.5 MHz
JAPAN
58.75 MHz
117.5 MHz
Oscillator
circuit
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0 2009.06.05
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