Document
S i 2 1 0 7 / 0 8 / 0 9/10
S A T E L L I T E R E C E I V E R F O R D V B -S /D S S W I T H QUICKLOCK AND QUICKSCAN
Features
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
VDD_LNA REXT
Pin Assignments
Si2107/08/09/10
GND GND VDD_SYNTH 35 VDD_LO RFIN2 RFIN1 RFIP2 RFIP1 GND
44 43 42 41 40 39 38 37 36
Applications
Set-top boxes Digital video recorders Digital televisions Satellite PC-TV SMATV trans-modulators (Satellite Master Antenna TV)
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1 2 3 4 5 6 7 8 9 10 11 12 13
XTAL1 XTAL2 VDD_XTAL XTOUT VDD_PLL33 INT/RLK/GPO TS_ERR TS_VAL TS_SYNC SDA SCL TS_DATA[7] TS_DATA[6]
GND
34 33 32
ADDR VDD_MIX VDD_BB VDD_ADC VSEN/TDET LNB1/TGEN ISEN
Top View
GND
14 15 16 17 18 19 20 21 22 VDD_DIG33 TS_DATA[0] TS_DATA[1] TS_DATA[2] TS_DATA[3] VDD_DIG33 TS_CLK TS_DATA[4] TS_DATA[5]
31 30 29 28 27 26 25 24 23
Description
LNB2/DRC RESET PWM/DCS
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.
VDD_DIG18
Functional Block Diagram
AGC
Acquisition Control
A/D Converter
De-interleaver
Descrambler
RFIP
Tuner
Demodulator
Viterbi Decoder
RS Decoder
TS_CLK TS_DATA[7:0] TS_VAL TS_SYNC TS_ERR
VSEN/TDET LNB2/DRC ISEN/NC LNB1/TGEN PWM/DCS
LNB Control
RF Sythesizer
I2C Interface
MPEG-TS
INT/RLK/GPO
XOUT
SCL
SDA
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.
Datasheet pdf - http://www.DataSheet4U.co.kr/
Si2107/08/09/10
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2
Preliminary Rev. 0.81
Datasheet pdf - http://www.DataSheet4U.co.kr/
Si2107/08/09/10 TA B L E O F C O N T E N TS
Section Page
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Typical Application Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3. Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4. Part Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 5. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.1. Tuner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.2. Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 5.3. DVB-S/DSS Channel Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.4. On-Chip Blindscan Controller: QuickScan (Si2109/10 Only) . . . . . . . . . . . . . . . . . . 21 5.5. LNB Signaling Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.6. On-Chip LNB DC-DC Step-Up Controller (Si2108/10 Only) . . . . . . . . . . . . . . . . . . . 21 5.7. Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 6. Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.1. System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2. Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .