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| 型号： | TLV320AIC1107PW |
| 厂商： | Texas Instruments |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC PCM CODEC PROG MICAMP 20TSSOP |
| 标准包装： | 70 |
| 类型： | PCM |
| 数据接口： | PCM 音频接口 |
| 分辨率（位）： | 13 b |
| ADC / DAC 数量： | 1 / 1 |
| 三角积分调变： | 是 |
| 电压 - 电源，模拟： | 2.7 V ~ 3.3 V |
| 电压 - 电源，数字： | 2.7 V ~ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 配用： | 296-18387-ND - DEVELOPMENT PLATFORM DSP-CODEC |
| 其它名称： | 296-34471-5 TLV320AIC1107PW-ND |
TLV320AIC1107
SLAS360 DECEMBER 2001
11
www.ti.com
PRINCIPLES OF OPERATION
power-up initialization
An external reset with a minimum pulse width of 500 ns must be applied to the active-low RESET terminal with
MCLK active to ensure reset upon power up.
Table 1. Power-Up and Power-Down Power Consumption (VDD = 2.7 V, Earphone Amplifier Loaded)
DEVICE STATUS
MAXIMUM POWER CONSUMPTION
Power up
16.2 mW
Power down
81
W
The loss of MCLK (no transition detected) automatically enters the device into a power-down state with PCMO
in the high-impedance state. If an asynchronous power down occurs during a pulse code modulation (PCM)
data transmit cycle, the PCM interface remains powered up until the PCM data is completely transferred.
conversion laws
The device can be programmed either for a 13-bit linear or 8-bit
(A-law) companding mode. The companding
operation approximates the CCITT G.711 recommendation. The linear mode operation uses a 13-bit
twos-complement format. Linear mode is selected with LINSEL low. LINSEL is high for companding.
transmit operation
microphone input
The microphone input stage is a low-noise differential amplifier. The microphone must be capacitively coupled
to the MICIN and MICIN+ terminals. Preamplifier (MIC Amp 1) gain is determined by selection of external
resistors R2 and R3. To achieve the recommended gain setting of 23.5 dB for MIC Amp 1, resistor values of
R2 = 34 k
and R3 = 510 k are suggested. A 1% tolerance is recommended for all resistors to meet the
specification. The recommended input impedance is 35 k
to 100 k.
_
+
R3
R2
C1
+V
R1
MICGAIN
MICGAIN+
MICIN+
MICIN
MIC Amp 1
R1 = 2 k
C1 = 0.22
F
MIC Amp 1 Gain in dB
+ 20 log R3
R2
Figure 3. Typical Microphone Interface
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相关代理商/技术参数 |
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| TLV320AIC1107PWG4 | 功能描述:接口—CODEC 1-To-4 Add Reg/Drvr W/3-State Otpt 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 |
| TLV320AIC1107PWR | 功能描述:接口—CODEC Prog. PCM 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 |
| TLV320AIC1107PWRG4 | 功能描述:接口—CODEC Prog. PCM 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 |
| TLV320AIC1109 | 制造商:TI 制造商全称:Texas Instruments 功能描述:PCM CODEC |
| TLV320AIC1109EVM | 功能描述:音频 IC 开发工具 TLV320AIC1109 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 |
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