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參數(shù)資料
| 型號(hào)： | TDA7550 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| 中文描述： | 數(shù)字信號(hào)和音頻應(yīng)用語(yǔ)音處理IC |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 118K |
| 代理商： | TDA7550 |
addressable DRAM
– Refresh rate for DRAM can be chosen
among sixteen divide factors
– SRAM or DRAM relative addressing modes
– 2
22
=4MBytes addressable SRAM
– Four SRAM Timing choices
– Two Read Offset Register
PLL
The Euterpe clock system generates the fol-
lowing clocks:
– DCLK the DSP core clock
– MCLK CODEC master clock
– LRCLK left/right clock for the SAI and
the CODEC
– SCLK shift serial clock for the SAI and
the CODEC
The output of the PLL operates from 70 to 140
MHz. The DSP core can operate with a clock
up to 50 MHz.
From the VCO output the audio clock are de-
rived.
CODEC
The main features of the CODEC are listed be-
low:
– one 16-bit Delta Sigma Stereo ADC
– 80 dB Dynamic Range
– Oversampling Ratio: 128
– one 16-bit Delta Sigma Stereo DAC
– 80 dB Dynamic Range
– Interpolating Ratio: 128
– Sampling rates of 4kHz to 48kHz
– Signal Noise Ratio: 80 dB Typ.
The analog interface is in the form of differen-
tial signals for each channel. The interface on
the digital side has the form of an SAI interface
and can interface directly to an SAI channel
and then to the DSP core.
DEVICE versions
Part No.
Internal
Program
Memory
Function
Serial I/F
External
Memory
Audio
Input
Audio
Output
Software
TDA7550R
RAM
One of the
below
Master or
Slave I
2
C
Slave I
2
C
FLASH
or RAM
YES
(by appl.)
YES
(by appl.)
Custom
Specs.
TDA7550
ROM
Speech
Recognition
FLASH
YES, 1
(voice in)
YES
(prompts)
ASR-311
Engine by
Lernout &
Hauspie
TDA7551
Speaker
Verification
Slave I
2
C
Optional
FLASH
YES, 1
(voice in)
YES
(prompts)
SV208
Engine by
Lernout &
Hauspie
TDA7552
Text-To-
Speech
Slave I
2
C
–
NO
YES
(voice out)
TTS3000
Engine by
Lernout &
Hauspie
TDA7553
SF/FDE
Master
I
2
C or SPI
(RAM)
YES, 1
(voice in)
YES
(filtered)
Engine by
NCTI
Note: TDA7550 requires word databases on FLASH (cfr. Document words)
TDA7550R - TDA7550 - TDA7551 - TDA7552 - TDA7553
7/12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7550R | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7551 | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7552 | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7553 | DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7560 | 4 x 45W QUAD BRIDGE CAR RADIO AMPLIFIER PLUS HSD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7550R | 制造商:STMicroelectronics 功能描述: |
| TDA7551 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7552 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DIGITAL SIGNAL PROCESSING IC FOR SPEECH AND AUDIO APPLICATIONS |
| TDA7553 | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TDA7555 | 功能描述:音頻 DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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