- 您现在的位置：买卖IC网 > PDF目录98252 > TLV320AIC14I (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PDSO30 PDF资料下载
参数资料
| 型号： | TLV320AIC14I |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO30 |
| 封装： | PLASTIC, TSSOP-30 |
| 文件页数： | 8/54页 |
| 文件大小： | 450K |
| 代理商： | TLV320AIC14I |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第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
3–3
Writing 10 into bits D2–D1 chooses pseudo-differential MICIN mode. In this mode the single ended input is connected
through ac-coupling to MICIN and the bias voltage used to generate the signal is also ac coupled to INM1 as shown
in Figure 5–20. For best noise performance the MICIN and INM1 lines must be routed in similar fashion from the
microphone to the device for noise cancellation.
For high quality performance the single ended signal is converted internally into differential signal before being
converted. To improve the dynamic range with different types of microphones the device supports a pre-amp with
gain settings of 0/6/12/24 dB. This can be chosen by writing into bits D1–D0 of control register 5C.
TLV320AIC14
BIAS
MICIN
10 k
0.1
F
Electret
Microphone
BIAS
MICIN
INM1
0.1
F
10 k
0.1
F
Electret
Microphone
(a) Single Ended
(b) Pseudo -Differential (High Quality)
Figure 3–1. Microphone Interface
3.3.2
INP and INM Input
To produce common-mode rejection of unwanted signal performance, the analog signal is processed differentially
until it is converted to digital data. The signal applied to the terminals INM1/2 and INP1/2 are differential to preserve
device specifications (see Figure 3–2). The signal source driving analog inputs (INP1/2 and INM1/2) should have low
source impedance for lowest noise performance and accuracy. To obtain maximum dynamic range, the signal should
be ac-coupled to the input terminal.
INP1 or INP2
INM1 or INM2
1.35 V
TLV320AIC14
V(INP)
V(INM)
Figure 3–2. INP and INM Internal Self-Biased Circuit
3.3.3
Single-Ended Analog Input
The two differential inputs of (INP1/M1 and INP2/M2) can be configured to work as single-ended inputs by connecting
INP to the analog input and INM to ground (see Figure 3–3).
INP1 or INP2
INM1 or INM2
C
Analog Input
Figure 3–3. Single-Ended Input
相关PDF资料 |
PDF描述 |
|---|---|
| TLV320AIC22PT | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC22PTR | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TLV320AIC23BGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIGQE | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| TLV320AIC23BIPW | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLV320AIC14IDBT | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBT-1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| TLV320AIC14IDBTG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBTR | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
| TLV320AIC14IDBTRG4 | 功能描述:接口—CODEC Lo-Pwr Mono Voice Band 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 |
发布紧急采购，3分钟左右您将得到回复。