參數(shù)資料
型號(hào)： TDA7580
廠商： STMICROELECTRONICS
元件分類： 消費(fèi)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(yè)數(shù)： 22/39頁(yè)
文件大?。?/td> 616K
代理商： TDA7580
Obsolete
Product(s)
- Obsolete
Product(s)
TDA7580
Functional description
8.2
DSP peripherals
●
Clock generation unit (CGU)
●
Stereo decoder (HWSTER)
●
Serial audio interface (SAI)
●
Tuner AGC keying DAC (KEYDAC)
●
Programmable I/O interface (I2C/BSPI)
●
Asynchronous sample rate converter (ASRC)
●
IF band pass sigma delta modulator (IFADC)
●
Digital down converter (DDC)
●
Discriminator (CORDIC)
●
RDS
●
Tuner diversity HS3I
The peripherals are mapped in the X memory space.
Most of them can be handled by interrupt, with software programmable priority.
Peripherals running at very high rate have direct access to X and Y data bus for very fast
movement from or to the core, by mean of single cycle instruction.
8.3
Clock generation unit (CGU) and oscillator
This unit is responsible for supplying all necessary clocks and synchronization signals to the
whole chip.
The control status register of this unit contains information about the current working mode
(oscillator [master mode] or clock buffer [slave mode]), the tuner clock frequency setting, the
general setup of the oscillator. This last function is performed inside the CGU, that
establishes using a self trimming algorithm, which is the current values that can bias the
oscillator: this feature lets the oscillator be independent from process parameters variation.
The values of bias current are stored in the control status register of the CGU: 4 bits for the
coarse current steps and 6 bits for the fine current steps.
In slave mode the oscillator behaves as a buffer: the chip can be then driven using an
external clock. The clock divider, placed in this unit, generates the tuner the reference clock
and can be programmed for frequencies down to 9KHz with selectable duty cycle and from
4.4Hz to 9KHz with duty cycle 50%.
An external clock can drive the XTI pin (please see
Table 12 for reference).
8.4
Stereo decoder (HWSTER)
The fully digital hardware stereo decoder does all the signal processing necessary to
demodulate an FM MPX signal which is prepared by the channel equalization algorithm in
the digital IF sampling device, providing pilot tone dependent mono/stereo switching, as well
as stereo-blend and highcut functionality.
Selectable de-emphasis time constant allow the use of this module for different FM radio
receiver standards.
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(shí)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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