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参数资料
| 型号： | TAS3202PAGR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, TQFP-64 |
| 文件页数： | 3/66页 |
| 文件大小： | 817K |
| 代理商： | TAS3202PAGR |
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www.ti.com
SLES208B – JUNE 2009 – REVISED MARCH 2011
3.6
Power Down (PDN)
The TAS3202 supports a number of power-down modes.
PDN can be used to put the device into power-saving standby mode. In the default ROM configuration,
applying a logic low on this pin stops all clocks, powers down all analog circuitry, and ramps down volume
for all digital inputs. This mode is used to minimize power consumption while preserving register settings.
If the TAS3202 is successfully booted from an external EEPROM, the functionality of the pin is defined by
the user's application firmware.
Individual power down DAC and ADC – Both the DAC and the ADC can be powered down individually.
This feature is made available to the board controller via the I2C interface.
Power down of analog reference – The analog reference can be powered down if all DAC and ADCs
are powered down. This feature is made available to the board controller via the I2C interface.
3.7
I
2C Chip Select (CS0)
The TAS3202 has a control to specify the slave and master I2C address. This control permits up to two
TAS3202 devices to be placed in a system without external logic. GPIO pins are level sensitive. They are
not edge triggered.
See Section 6.3 for a complete description of this pin.
3.8
Programmable General-Purpose I/O (GPIO)
The TAS3202 has four general purpose input/output pins that can be programed by the user's application
firmware.
GPIO1 and GPIO2 pins are single-function I/O pins. Upon power up, GPIO1 is an input. If there is an
unsuccessful boot from an external EEPROM and GPIO1 is pulled high externally, the DAC output is
disabled. If there is an unsuccessful boot from an external EEPROM and GPIO1 is pulled low externally,
the DAC output is enabled. If there is a successful boot from an external EEPROM, GPIO1 will be
configured as an output and be driven logic low by the TAS3202 when the user's application code is
running.
GPIO3 and GPIO4 are dual function I/O pins. The functionality of GPIO pins must be defined by the user's
application code.
Mute and power-down functions have to be programmed in the EEPROM application code. These are
general-purpose input pins and are suggested for Mute and Powerdown functions. However, these
settings must be defined by the user's application code.
3.8.1
GPIO Pin Function After Device is Programmed
Once the TAS3202 has been programmed, either through a successful boot load or via slave I2C
download, the operation of GPIO is defined by ther user's application code.
3.9
Input and Output Serial Audio Ports
Serial data is input on SDINx on the TAS3202, allowing up to four channels of digital audio input. The
TAS3202 supports serial data in 16-, 20-, or 24-bit data in left, right, and I2S serial data formats. The
parameters for the clock and serial data interface input formats are I2C configurable.
Serial data is output on SDOUTx, allowing up to four channels of digital audio output. SDOUTx port
supports the same formats as the SDINx port. Output data rate is the same data rate as the input. The
SDOUTx output uses the SCLK_OUT and LRCLK_OUT signals to provide synchronization.
The TAS3202 supported data formats are listed in Table 3-1.
Copyright 2009–2011, Texas Instruments Incorporated
Physical Characteristics
11
Product Folder Link(s): TAS3202
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相关代理商/技术参数 |
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| TAS3204 | 制造商:TI 制造商全称:Texas Instruments 功能描述:AUDIO DSP WITH ANALOG INTERFACE |
| TAS3204EVM | 功能描述:音频 IC 开发工具 TAS3204EVM Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TAS3204EVM-LC | 制造商:Texas Instruments 功能描述:TAS3204EVM EVALUATION MODULE - Boxed Product (Development Kits) |
| TAS3204PAG | 功能描述:音频 DSP Hi Perf Dual Core DSP/MCU Aud Proc RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS3204PAGR | 功能描述:音频 DSP Hi Perf Dual Core DSP/MCU Aud Proc RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
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