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参数资料
| 型号： | TLV320AIC22PTR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | Codec |
| 英文描述： | DUAL VOIP CODEC |
| 中文描述： | 双VoIP编解码器 |
| 文件页数： | 26/55页 |
| 文件大小： | 763K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
register programming
The TLV320AIC22 contains 17 registers that are used to configure the device for the desired operation. Register
programming can be accomplished in two different ways:
D The serial interface (time slots 0 and 1)
D The I2C bus
The I2C/SPI pin is used to select either interface for programming the device.
register programming using the serial interface
To program the control registers using the serial interface, the I2C/SPI pin should be tied to logic 0. The frame
format and control-word description are discussed in serial interface earlier in this document.
Time slots 0 and 1 are used for codec register programming and are configured as follows:
D Slot 0: Read/write, physical address of codec register
This is the register address, appended to the codec address, derived from pins AD0 and AD1.
D Slot 1: Value to be written in the codec register for a write operation
For a read operation, the DIN slot 1 is zero stuffed. Depending on the register to be read, the codec puts the
register contents on the slot 1 of DOUT in the same frame.
The following are examples of programming a TLV320AIC22 whose device address is set to 0 (AD0=AD1=0).
Example 1. Write Operation (R/W = 1):
Programming control register 15 of a device with address 0x00h with the data set to 0x23h results in the following
data being driven on the DIN pin for time slots 0 and 1:
Slot 0: 1 00 0000 1111 00000
Slot 1: 0010 0011 0000 0000
0
11
1
0
10
R/W
AD1
AD0
Register Address = 15
Unused
0
1
87
6
5
4
3
2
10
11
12
13
14
15
9
BIT
Figure 11. DIN Data Stream for Programming Example 1, Slot 0
0
1
BIT
Control Register Data = 0 x 23h
Unused
0
1
8
7
654
32
10
11
12
13
14
15
9
0
00
0
00
0
1
Figure 12. DIN Data Stream for Programming Example 1, Slot 1
The data seen on DOUT in these two time slots is:
Time slot 0: 0000 0000 0000 0000
Time slot 1: 0000 0000 0000 0000
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| TLV320AIC23 | 制造商:TI 制造商全称:Texas Instruments 功能描述:STereo Audio CODEC, 8- to 96kHz, With Integrated Headphone Amplifier |
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| TLV320AIC23BGQE | 功能描述:接口—CODEC Lo-Pwr Highly Integrated 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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