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參數(shù)資料
| 型號： | TDA7580 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64 |
| 文件頁數(shù)： | 36/39頁 |
| 文件大小： | 616K |
| 代理商： | TDA7580 |
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Overview
TDA7580
1
Overview
The algorithm is self-adaptive, thus it requires no “on-the-field” adjustments after the
parameters optimization.
The chip embeds a
Band Pass Sigma Delta Analogue to Digital Converter for 10.7MHz IF
conversion from a “tuner device” (the TDA7515 is highly recommended).
The 24bit DSP allows flexibility in the algorithms implementation, thus giving some freedom
for customer required features. The total processing power offers a significant headroom for
customer’s software requirement, even when the channel equalization and the decoding
software is running. the program and data memory space can be loaded from an external
non volatile memory via I2C or SPI.
The oscillator module works with an external 74.1MHz quartz crystal. It has very low electro
magnetic interference, as it introduces very low distortion, and in any case harmonics fall
outside the radio bandwidth.
The companion tuner device receives the reference clock through a differential ended
interface, which works off the oscillator module by properly dividing down the master clock
frequency. That allows the overall system saving an additional crystal for the tuner.
After the IF conversion, the digitized baseband signal passes through the base band
processing section, either FM or AM, depending on the listener selection. The FM base
band processing comprises of stereo decoder, spike detection and noise blanking. The AM
noise blanking is fully software implemented.
The internal RDS filter, demodulator and decoder features complete functions to have the
output data available through either I2C or SPI interface. No DSP support is needed but at
start-up, so that RDS can work in background and in parallel with other DSP processing.
This mode (RDS only) allows current consumption saving for low power application modes.
An I2C/SPI interface is available for any control and communication with the main micro, as
well as RDS data interface. The DSP SPI block embeds a 10 words FIFO for both transmit
and receive channels, to lighten the DSP task and frequently respond to the interrupt from
the control interface.
Serial audio interface (SAI) is the ideal solution for the audio data transfer, both transmit and
receive: either master or slave. The flexibility of this module gives a wide choice of different
protocols, including I2S. Two fully independent bidirectional data channels, with separate
clocks allows the use of TDA7580 as general purpose digital audio processor.
A fully asynchronous sample rate converter (ASRC) is available as a peripheral prior to
sending audio data out via the SAI, so that internal audio sampling rate (~36kHz and
FM/AM mode) can be adapted by upconversion to any external rate.
An inter processor transport interface (HS3I, high speed synchronous serial interface) is
also available for a modular system which implements
Dual Tuner Diversity, thus enhancing
the overall system performance. It is about a synchronous serial interface which exchanges
data up to the MPX rate. It has been designed to reduce the electro magnetic interference
toward the sensitive analogue signal from the tuner.
General purpose I/O registers are connected to and controlled by the DSP, by means of
memory map.
A debug and test interface is available for on chip software debug as well as for internal
registers read/write operation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7705TR | AUDIO/VIDEO DEMODULATOR, PQFP64 |
| TDA7705 | AUDIO/VIDEO DEMODULATOR, PQFP64 |
| TDA7718NTR | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| TDA7718N | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| TDA7719 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7580_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:FM/AM digital IF sampling processor |
| TDA758013TR | 功能描述:處理器 - 專門應(yīng)用 FM/AM Digital IF Sample Prcr RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| TDA7590 | 制造商:STMicroelectronics 功能描述: |
| TDA7590_09 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital signal processing IC for speech and audio applications |
| TDA7701 | 制造商:STMicroelectronics 功能描述:BATTERY-OPERATED FULLY INTEGRATED FM TUNER - Trays |
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