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參數(shù)資料
| 型號： | PT9202-LQL |
| 廠商： | Princeton Technology Corporation |
| 英文描述： | DVD Analog Front-End |
| 中文描述： | 影碟模擬前端 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 225K |
| 代理商： | PT9202-LQL |
Tel: 886-2-66296288
DESCRIPTION
The PT9202 device is a high performance DVD RF chip, it supports up to DVD 4X and CD 20X reading.
Base on analog circuit part that contains some servo functions for track and focus controller; RF
attenuator, AGC, programmable equalizer for DVD read channel. Auto laser power control circuit
supports twin lasers system of OPU. Programmable functions of PT9202 are controlled by internal
registers.
FEATURES
READ CHANNEL
60MHz bandwidth
VGA gain range is from 1.70dB to 23.65dBV
Support high gain mode for RW disc
VGA support auto gain control mode and hold mode
Programmable attenuator(min:0.25V/V,2bit resolution)
Programmable amplitude of RF signal
Programmable attack current for speeding up AGC loop
Low leakage current when AGC hold mode
Programmable cutoff frequency of RFEQ, range is from 2.3MHz to 27.4MHz
±
20% Fc accuracy
Programmable boost gain range of RFEQ is from 0dB to 13.4dB
Less than 2% total harmonic distortion
7th RF equalizer and 2Fc constant group delay
5% group delay variation
SERVO
40/80KHz for FE/RFLVL module
Programmable offset adjust for FE, range is
±
2480mV. For TE, 1st stage range is
±
240mV, 2nd
stage range is
±
1200mV. For LSE, range is
±
620mV. For RFLVL/RFRP, 1st stage range is
±
120mV, 2nd stage range is
±
1200mV
Programmable gain for FE/TE/LSE/RFLVL/RFRP, range is from -3dB to 28dB
2nd low pass filter for TE/RFRP module, range is from 75KHz to 300KHz
Support high gain mode for CDRW/DVD+-RW/DVD9 disc
Support defect/finger print/blank area detector
Support 2 methods(three beam, DPD) for TE generator
Support 2 methods(Astigmatic and Knife -edge) for FE generator
Support FE/TE balance gain for signal unbalance calibration
Programmable equalizer for the differential phase detection circuit
Support 3 bit GCA gain stage for input signals of DPD circuit, range is from -12dB to 16 dB
Support defect protection function for DPD circuit
Support BCA detect function
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
PT9202 PRE1.0
- 1 -
August, 2007
DVD Analog Front-End
Preliminary
PT9202
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