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Silan Microelectronics

SA9801 Datasheet Preview

SA9801 Datasheet

SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR

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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




Silan Microelectronics

SA9801 Datasheet Preview

SA9801 Datasheet

SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR

No Preview Available !

SA9801
BLOCK DIAGRAM
20
VCC
6 17 16
TPLL VCO2 VCO1
15
AFC
GND Internal
18 reference
voltage
Travelling
wave
divider
VCO
AFC
detector
AF
AF amplifier DAF
9
10
3-stage
IF-amplifier
VIF1
1
VIF2
2
Frequency
detector and
phase detector
4
ADJ
Tuner AGC
IF AGC
Video
demodulator
Video amplifier
SA9801
AGC detector
Sound
mute
FM-PLL
detector
NC 8
Limiter
amplifier
SI
11
Buffer amplifier and
noise clipper
TOP TAGC
3 12
AGC
MUTE
VSO VI
19 5
13 14
CVBS
7
ABSOLUTE MAXIMUM RATING In accordance with the Absolute Maximum Rating System (IEC
134).
PARAMETER
Supply Voltage
Voltage On
Pins VIF1, VIF2, AFC And
AGC Pin TAGC
Maximum Short-Circuit Time
Storage Temperature
Ambient Temperature
SYMBOL
VCC
Vn
tsc(max)
Tstg
Tamb
CONDITIONS
ICC= 70 mA; Tamb =70 °C;
maximum chip temperature
125 °C for SA9801
128 °C for SA9801T
to ground or VCC
MIN.
0
0
0
25
20
MAX. UNIT
9.9
9.9
VCC
13.2
10
+150
+70
V
V
V
V
s
°C
°C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0 2009.06.05
Page 2 of 7


Part Number SA9801
Description SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR
Maker Silan Microelectronics
Total Page 7 Pages
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