參數(shù)資料
型號(hào): PCM2900EG4
元件分類: Codec
英文描述: STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF
中文描述: 立體聲音頻編解碼器帶USB接口,單端模擬輸入/輸出和S / PDIF
文件頁數(shù): 20/33頁
文件大小: 380K
代理商: PCM2900EG4
SLES035C MARCH 2002 REVISED MARCH 2007
www.ti.com
20
USB INTERFACE
Control data and audio data are transferred to the PCM2900/2902 via D+ (pin 1) and D– (pin 2). All data to/from
the PCM2900/2902 is transferred at full speed. The device descriptor contains the information described in
Table 1. The device descriptor can be modified on request; contact a Texas Instruments representative for
details.
Table 1. Device Descriptor
USB revision
1.1 compliant
Device class
0x00 (device defined interface level)
Device sub class
0x00 (not specified)
Device protocol
0x00 (not specified)
Max packet size for end-point 0
8 byte
Vendor ID
0x08BB (default value, can be modified)
Product ID
0x2900 / 0x2902 (default value, can be modified)
Device release number
1.0 (0x0100)
Number of configurations
1
Vendor strings
String #1 (see Table 3)
Product strings
String #2 (see Table 3)
Serial number
Not supported
The configuration descriptor contains the information described in Table 2. The configuration descriptor can be
modified on request; contact a Texas Instruments representative for details.
Table 2. Configuration Descriptor
Interface
Four interfaces
Power attribute
0x80 (Bus powered, no remote wakeup)
Max power
0x32 (100 mA. Default value, can be modified)
The string descriptor contains the information described in Table 3. The string descriptor can be modified on
request; contact a Texas Instruments representative for details.
Table 3. String Descriptor
#0
0x0409
#1
Burr-Brown from TI (default value, can be modified)
#2
USB audio codec (default value, can be modified)
DEVICE CONFIGURATION
Figure 31 illustrates the USB audio function topology. The PCM2900/2902 has four interfaces. Each interface
is constructed by alternative settings.
相關(guān)PDF資料
PDF描述
PCM2902EG4 STEREO AUDIO CODEC WITH USB INTERFACE, SINGLE ENDED ANALOG INPUT/OUTPUT AND S/PDIF
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