參數(shù)資料
型號(hào)： TAS5706APAPR
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
封裝： 10 X 10 MM, GREEN, PLASTIC, HTQFP-64
文件頁(yè)數(shù)： 15/71頁(yè)
文件大?。?/td> 1554K
代理商： TAS5706APAPR
DETAILED DESCRIPTION
POWER SUPPLY
CLOCK, AUTO DETECTION, AND PLL
SERIAL DATA INTERFACE
PWM Section
I
2C COMPATIBLE SERIAL CONTROL INTERFACE
SLOS606D – MARCH 2009 – REVISED SEPTEMBER 2009............................................................................................................................................. www.ti.com
The digital portion of the chip requires 3.3 V, and the power stages can work from 10 V to 26 V.
The TAS5706A DAP is a slave device. It accepts MCLK, SCLK, and LRCLK. The digital audio processor (DAP)
supports all the sample rates and MCLK rates that are defined in the clock control register.
The TAS5706A checks to verify that SCLK is a specific value of 32 fS, 48 fS, or 64 fS. The DAP only supports a 1
× fS LRCLK. The timing relationship of these clocks to SDIN1/2 is shown in subsequent sections. The clock
section uses MCLK or the internal oscillator clock (when MCLK is unstable or absent) to produce the internal
clock.
The DAP can autodetect and set the internal clock control logic to the appropriate settings for the frequencies of
32 kHz, normal speed (44.1 or 48 kHz), double speed (88.2 kHz or 96 kHz), and quad speed (176.4 kHz or
192 kHz). The automatic sample rate detection can be disabled and the values set via I2C in the clock control
The DAP also supports an AM interference-avoidance mode during which the clock rate is adjusted, in concert
with the PWM sample rate converter, to produce a PWM output at 7 × fS, 8 × fS, or 6 × fS.
The sample rate must be set manually during AM interference avoidance and when de-emphasis is enabled.
Serial data is input on SDIN1/2. The PWM outputs are derived from SDIN1/2. The TAS5706A DAP accepts 32-,
44.1-, 48-, 88.2-, 96-, 176.4-, and 192-kHz serial data in 16-, 18-, 20-, or 24-bit data in left-justified, right-justified,
and I2S serial data formats.
The TAS5706A DAP device uses noise-shaping and sophisticated error correction algorithms to achieve high
power efficiency and high-performance digital audio reproduction. The DAP uses a fourth-order noise shaper that
has >100-dB SNR performance from 20 Hz to 20 kHz. The PWM section accepts 24-bit PCM data from the DAP
and outputs four PWM audio output channels. TAS5706A PWM section output supports bridge-tied loads.
The PWM section has individual channel dc blocking filters that can be enabled and disabled. The filter cutoff
frequency is less than 1 Hz. Individual channel de-emphasis filters for 32-, 44.1-, and 48-kHz are included and
can be enabled and disabled.
Finally, the PWM section has an adjustable maximum modulation limit of 93.8% to 99.2%.
The TAS5706A DAP has an I2C serial control slave interface to receive commands from a system controller. The
serial control interface supports both normal-speed (100-kHz) and high-speed (400-kHz) operations without wait
states. As an added feature, this interface operates even if MCLK is absent.
The serial control interface supports both single-byte and multi-byte read and write operations for status registers
and the general control registers associated with the PWM.
The I2C interface supports a special mode which permits I2C write operations to be broken up into multiple-data
write operations that are multiples of 4 data bytes. These are 6-, 10-, 14-, 18-, ... etc., -byte write operations that
are composed of a device address, read/write bit, subaddress, and any multiple of 4 bytes of data. This permits
the system to write large register values incrementally without blocking other I2C transactions.
22
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TAS5706A TAS5706B
相關(guān)PDF資料
PDF描述
TAS5706APAP 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5706PAPRG4 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5706PAPR 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5706PAP 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5706PAPG4 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS5706APAPRG4 功能描述:音頻放大器 AUDIO Pwr STAGE & Proc 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
TAS5706BPAP 功能描述:音頻放大器 20W Closed-loop I2S Audio Power Amp 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
TAS5706BPAPR 功能描述:音頻放大器 20W Closed-loop I2S Audio Power Amp 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
TAS5706EVM 功能描述:音頻 IC 開發(fā)工具 TAS5706EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TAS5706EVM2 功能描述:音頻 IC 開發(fā)工具 TAS5706EVM2 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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