Datasheet > PT9202

PT9202

更新时间： 2024-11-11 03:40:51

品牌	Logo	应用领域
普诚科技 - PTC		DVD
页数	文件大小	规格书
5页	218K
描述
DVD Analog Front-End

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中文翻译

获取价格

数据手册

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PT9202 数据手册

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

DVD Analog Front-End

Preliminary

PT9202

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

PT9202 PRE1.0

- 1 -

August, 2007

12 3 4 5

中文翻译

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