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SI2108 데이터시트(PDF) 1 Page - Silicon Laboratories

부품명 SI2108
상세설명  SATELLITE RECEIVER FOR DVB-S/DSS WITH QUICKLOCK AND QUICKSCAN
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제조업체  SILABS [Silicon Laboratories]
홈페이지  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI2108 데이터시트(HTML) 1 Page - Silicon Laboratories

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Preliminary Rev. 0.81 6/06
Copyright © 2006 by Silicon Laboratories
Si2107/08/09/10
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Si2107/08/09/10
SATELLITE RECEIVER FOR DVB-S/DSS WITH
QUICKLOCK AND QUICKSCAN
Features
Applications
Description
The Si2107/08/09/10 are a family of pin-compatible, complete front-end solutions
for DSS and DVB-S digital satellite reception. The IC family incorporates a tuner,
demodulator, and LNB controller into a single device resulting in significantly
reduced board space and external component count. The device supports symbol
rates of 1 to 45 MBaud over a 950 to 2150 MHz range. A full suite of features
including automatic acquisition, fade recovery, blind scanning, performance
monitoring, and DiSEqC Level 2.2 compliant signaling are supported. The Si2108/
10 further add short circuit protection, overcurrent protection, and a step-up dc-dc
controller to implement a low-cost LNB supply solution. Si2109/10 versions
include a hardware channel scan accelerator for fast “blindscan”. The Si2107/08/
09/10 family features new channel detection and acquisition technology:
QuickLock for Si2107/08/09/10 and QuickScan for Si2109/10. QuickLock
achieves fast channel acquisition and QuickScan, fast channel detection. An I2C
bus interface is used to configure and monitor all internal parameters.
Functional Block Diagram
Single-chip tuner, demodulator,
and LNB controller
DVB-S- and DSS-compliant
QPSK/BPSK demodulation
Integrated step-up dc-dc
converter for LNB power supply
(Si2108/10 only)
Input signal level:
–82 to –10 dBm
Symbol rate range:
1 to 45 MBaud
Automatic acquisition and fade
recovery
Automatic gain control
On-chip blind scan accelerator
with QuickScan (Si2109/10 only)
DiSEqC™ 2.2 support
Power, C/N, and BER estimators
I2C bus interface
3.3/1.8 V supply, 3.3 V I/O
Pb-free/RoHS-compliant
package
Set-top boxes
Digital video recorders
Digital televisions
Satellite PC-TV
SMATV trans-modulators
(Satellite Master Antenna TV)
Acquisition Control
AGC
Tuner
Demodulator
Viterbi
Decoder
RS
Decoder
LNB Control
RF Sythesizer
I2C Interface
XOUT
SCL SDA
INT/RLK/GPO
TS_ERR
TS_SYNC
TS_VAL
TS_DATA[7:0]
TS_CLK
PWM/DCS
ISEN/NC
LNB2/DRC
VSEN/TDET
RFIP
LNB1/TGEN
Pin Assignments
Si2107/08/09/10
14 15 16 17 18 19 20 21 22
36
37
38
39
40
41
42
43
44
VDD_LNA
REXT
ADDR
VDD_MIX
VDD_BB
VDD_ADC
VSEN/TDET
LNB1/TGEN
ISEN
PWM/DCS
VDD_DIG18
TS_DATA[7]
SCL
SDA
TS_SYNC
TS_VAL
TS_ERR
INT/RLK/GPO
VDD_PLL33
XTOUT
VDD_XTAL
XTAL2
XTAL1
RESET
LNB2/DRC
TS_DATA[6]
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GND
GND


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