参数资料
| 型号： | PCM1792DB |
| 厂商： | Texas Instruments |
| 文件页数： | 46/61页 |
| 文件大小： | 0K |
| 描述： | IC 24BIT AUDIO STEREO DAC 28SSOP |
| 产品培训模块： | Data Converter Basics |
| 标准包装： | 47 |
| 位数： | 24 |
| 数据接口： | I²C，串行，SPI? |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 输出数目和类型： | 2 电压，单极 |
| 采样率（每秒）： | 200k |
| 产品目录页面： | 903 (CN2011-ZH PDF) |
| 其它名称： | 296-15313-5 |
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PCM1792
SLES069B MARCH 2003 REVISED NOVEMBER 2006
www.ti.com
50
LRCK
BCK
DI
CMD
Don’t
Care
Ch1
CMD
CMD
Ch2
Ch3
Ch1
Ch4
IN and OUT Channel Orders are Completely Independent
DO
7 Packets
× 32 Bits
Ch5
Ch6
1/fS (256 PBCK Clocks)
Ch2
Figure 59. TDMCA Frame Example of 6-Ch DAC and 2-Ch ADC With Command Read
Command Field
The normal command field is defined as follows. When the DID bit (MSB) is 1, this frame is used only for device ID
determination, and all remaining bits in the field are ignored.
31
30
29
28
24
23
22
16
15
8
7
0
command
DID
EMD
DCS
device ID
R/W
register ID
data
not used
Bit 31: Device ID enable flag
The PCM1792 operates to get its own device ID for TDMCA initialization if this bit is HIGH.
Bit 30: Extended command enable flag
The EMD packet will be transferred if this bit is HIGH, otherwise skipped. Once this bit is HIGH, this frame does not
contain any audio data. This is for system initialization.
Bit 29: Daisy chain selection flag
HIGH designates OUT-chain devices, LOW designates IN-chain devices. The PCM1792 is an IN device, so the DCS
bit must be set to LOW.
Bits[28:24]: Device ID. It is 5 bits length, and it can be defined.
These bits identify the order of a device in the IN or OUT daisy chain. The top of the daisy chain defines device ID
1 and successive devices are numbered 2, 3, 4, etc. All devices for which the DCI is fixed HIGH are also defined as
ID 1. The maximum device ID is 30 each in the IN and OUT chains. If a device ID of 0x1F is used, all devices are
selected as broadcast when in the write mode. If a device ID of 0x00 is used, no device is selected.
Bit 23: Command Read/Write flag
If this bit is HIGH, the command is a read operation.
Bits[22:16]: Register ID
It is 7 bits in length.
Bits[15:8]: Command data
It is 8 bits in length. Any valid data can be chosen for each register.
Bits[7:0]: Not used
These bits are never transported when a read operation is performed.
Extended command field
The extended command field is the same as the command field, except that it does not have a DID flag.
31
30
29
28
24
23
22
16
15
8
7
0
extended command
rsvd
EMD
DCS
device ID
R/W
register ID
data
not used
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCM1792DB | 制造商:Texas Instruments 功能描述:24BIT AUDIO DAC SMD 1792 SSOP28 |
| PCM1792DBG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1792DBR | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1792DBRG4 | 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1793 | 制造商:TI 制造商全称:Texas Instruments 功能描述:24 BIT 192KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER |
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