- 您现在的位置：买卖IC网 > PDF目录98253 > TLV320AIC29IRGZR (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PQCC48 PDF资料下载
参数资料
| 型号： | TLV320AIC29IRGZR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, QFN-48 |
| 文件页数： | 15/87页 |
| 文件大小： | 1051K |
| 代理商： | TLV320AIC29IRGZR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页
TLV320AIC29
SLAS494B DECEMBER 2005 REVISED OCTOBER 2007
www.ti.com
22
AUDIO DATA CONVERTERS
The AIC29 includes a stereo audio DAC and a mono audio ADC. Both ADC and DAC can operate with a
maximum sampling rate of 53 kHz and support all audio standard rates of 8 kHz, 11.025 kHz, 12 kHz, 16 kHz,
22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, and 48 kHz. By utilizing the flexible clock generation capability and internal
programmable interpolation, a wide variety of sampling rates up to 53 kHz can be obtained from many possible
MCLK inputs. In addition, the DAC and ADC can independently operate at different sampling rates as indicated
in control register 00H/page 2.
When the ADC or DAC is operating, the AIC29 requires an applied audio MCLK input. The user should also
set bit D13 of control register 06H/page 2 to indicate which Fsref rate is being used. If the codec ADC or DAC
is powered up, then the auxiliary ADC uses MCLK and BCLK for its internal clocking, and the internal oscillator
is powered down to save power.
Typical audio DACs can suffer from poor out-of-band noise performance when operated at low sampling rates,
such as 8 kHz or 11.025 kHz. The AIC29 includes programmable interpolation circuitry to provide improved
audio performance at such low sampling rates, by first upsampling low-rate data to a higher rate, filtering to
reduce audible images, and then passing the data to the internal DAC, which is actually operating at the Fsref
rate. This programmable interpolation is determined using bit D5D3 of control register 00H/page 2.
For example, if playback of 11.025 kHz data is required, the AIC29 can be configured such that Fsref = 44.1
kHz. Then using bit D5D3 of control register/page 2, the DAC sampling rate (Fs) can be set to Fsref/4, or FS
= 11.025 kHz. In operation, the 11.025 kHz digital input data is received by the AIC29, upsampled to 44.1 kHz,
and filtered for images. It is then provided to the audio DAC operating at 44.1 kHz for playback. In reality, the
audio DAC further upsamples the 44.1 kHz data by a ratio of 128 x and performes extensive interpolation
filtering and processing on this data before conversion to a stereo analog output signal.
Phase Locked Loop (PLL)
The AIC29 has an on chip PLL to generate the needed internal ADC and DAC operational clocks from a wide
variety of clocks that may be available in the system. The PLL supports an MCLK varying from 2 MHz to 100
MHz and is register programmable to enable generation of required sampling rates with fine precision.
ADC and DAC sampling rates are given by
DAC_Fs
+ Fsref
N1
and
ADC_Fs
+ Fsref
N2
Where, Fsref must fall between 39 kHz and 53 kHz, and N1, N2=1, 1.5, 2, 3, 4, 5, 5.5, 6 are register
programmable.
The PLL can be enabled or disabled using register programming.
D When PLL is disabled
Fsref
+ MCLK
128
Q
Q = 2, 3
…17
— Note: For ADC, with N2 = 1.5 or 5.5, odd values of Q are not allowed.
— In this mode, the MCLK can operate up to 100 MHz, and Fsref should fall between 39 kHz
and 53 kHz.
D When PLL is enabled
相关PDF资料 |
PDF描述 |
|---|---|
| TLV320AIC29IRGZTG4 | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| TLV320AIC29IRGZT | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| TLV320AIC29IRGZ | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| TLV320AIC3107IYZFR | 2 CHANNEL, AUDIO AMPLIFIER, BGA42 |
| TLV320AIC3107IYZFT | 2 CHANNEL, AUDIO AMPLIFIER, BGA42 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC29IRGZRG4 | 功能描述:接口—CODEC 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 |
| TLV320AIC29IRGZT | 功能描述:接口—CODEC 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 |
| TLV320AIC29IRGZTG4 | 功能描述:接口—CODEC 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 |
| TLV320AIC3004IRHBR | 制造商:Texas Instruments 功能描述:TISTLV320AIC3004IRHBR LOW-POWER STEREO |
| TLV320AIC3007 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-POWER STEREO AUDIO CODEC WITH INTEGRATED MONO CLASS-D AMPLIFIER |
发布紧急采购，3分钟左右您将得到回复。