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| 型号： | TLV320AIC27TPFB |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | PLASTIC, TQFP-48 |
| 文件页数： | 26/54页 |
| 文件大小： | 732K |
| 代理商： | TLV320AIC27TPFB |
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TLV320AIC27
STEREO AUDIO CODEC
SLAS253A – MARCH 2000 – REVISED SEPTEMBER 2000
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
power-down control/status register (index 26h) (continued)
PR0 = 1
PR1 = 1
PR2 = 1
PR4 = 1
PR0 = 0 AND
ADC = 1
DEFAULT
READY = 1
COLD RESET
WARM
RESET
PR2 = 0 AND
ANL = 1
PR1 = 0 AND
DAC = 1
ADCs OFF
PR0
DACs OFF
PR1
ANALOG
OFF PR2 OR
PR3
DIGITAL I/F
OFF PR4
SHUT OFF
CODA LINK
NORMAL
Figure 14. The TLV320AIC27 Power-Down/Flow With Analog Still Alive
Figure 14 illustrates a state where all the mixers should work with the static volume settings contained in their
associated registers. This is used when the user is playing a CD (or external LINEIN source) through the
TLV320AIC27 to the speakers, but has most of the system in low-power mode. The procedure for this follows
the previous procedure, except that the analog mixer is never shut down.
Note that PR5 is required to be set in order to go into ultimate low-power mode, which turns off the oscillator
circuit. Asserting SYNC resets the PR5 bit and restarts the oscillator in the same way as the ac link is restarted.
Also, when RESETB pin is asserted low, all PR bits are overridden and the entire device is powered off to
ultralow-power state for as long as RESETB = low. When RESETB is released the device is reset (all active)
and powered up.
vendor-reserved registers (index 5Ah to 7Ah)
These vendor-specific registers are reserved for future use. Do not write to these registers unless the vendor
ID register has been checked first to ensure that the driver knows the source of the AC’97 component. Values
stored in this register are intended to provide test modes for use by the manufacturer.
revision 2.1 registers (index 28h to 58h)
The use of these registers is specified in Revision 2.1 of the AC’97 specification and have the following functions
on the TLV320AIC27:
register 28h – extended audio ID
The extended audio ID register is a read-only register that identifies which extended audio features are
supported (in addition to the original AC’97 features identified by reading the reset register at index 00h). A
nonzero value indicates the feature is supported. The indication of support for six-channel surround sound
changes depending on whether the TLV320AIC27 is configured in mode 00 or otherwise.
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| TLV320AIC28IRGZR | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC28 | 制造商:TI 制造商全称:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH INTERGRATED HEADPHONE AND SPEAKER AMPLIFIERS |
| TLV320AIC28_08 | 制造商:TI 制造商全称:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH INTEGRATED HEADPHONE AND SPEAKER AMPLIFIERS |
| TLV320AIC28EVM | 功能描述:音频 IC 开发工具 TLV320AIC28 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 |
| TLV320AIC28IRGZ | 功能描述:接口—CODEC Lo-Pwr Stereo Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| TLV320AIC28IRGZG4 | 功能描述:接口—CODEC Lo-Pwr Stereo Codec RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
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