參數(shù)資料
型號(hào)： TDA7522
廠商： 意法半導(dǎo)體
英文描述： Digital Servo & Decoder(用于CD-ROM的數(shù)字伺服和解碼器)
中文描述： 數(shù)字伺服
文件頁(yè)數(shù)： 16/23頁(yè)
文件大?。?/td> 183K
代理商： TDA7522
TDA7522
16/23
– Constant Angular Velocity Control
– TOC management
– CD-Text I/F.
5.2 DSP (SACDSP : Servo Audio Control Digital Signal Processor)
DSP is placed as a subset of ST7 MPU, which performs Digital Filter calculation.
It consists of 20bit (data) x 16bit (coefficient) multiplier, 38bit accumulator, 20bit Data RAM, Data Arbitra-
tion between ST7, and 19 bits wide program Opcode; it can be broken down into two instruction bindings:
– Instruction binding #1
:Arithmetic Instructions + Parallel Move Instructions
– Instruction binding #2
:Immediate moves and bit-test jumps
SACDSP is very powerful DSP which performs more than 50MIPS, and it is based on three level pipeline
architecture in which concurrent instruction fetch, decode, and execution occur.
Figure 4. Basic I/Fs to ST7
Some Tasks of SACDSP are as follows;
– DSP: Digital Filter execution as slave of ST7
– Focusing and Tracking loop filter
– Sled Tracking control
– Pick-up Velocity control during Jump
Scratch RAM
ST7 & Peripherals
PROM
Data
Arbitration
Coeff.
Arbitration
Coeff.
RAM
Data
RAM
CIRC
Decimation
filter
SAC-DSP
PDM/PWM
Audio
DAC
PRAM
Loaded
by ST7
AUDIO DATA Path
SERVO DATA Path
相關(guān)PDF資料
PDF描述
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TDA7540B AM/FM Car Radio Tuner IC with Stereo Decoder and Intelligent Selectivity System (ISS)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7528 功能描述:射頻接收器 AM/FM car radio Front-End IF Signal RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
TDA7528TR 功能描述:音頻放大器 AM/FM car radio Front-End IF Signal RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7529 功能描述:調(diào)諧器 RF front-end AM/FM DSP car-radio IF Sig RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
TDA7529_11 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RF front-end for AM/FM DSP car-radio with IF sampling
TDA7529TR 功能描述:調(diào)諧器 RF front-end AM/FM DSP car-radio IF Sig RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
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