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PCM2902E Datasheet(PDF) 20 Page - Burr-Brown (TI) |
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PCM2902E Datasheet(HTML) 20 Page - Burr-Brown (TI) |
20 / 35 page www.ti.com USB INTERFACE A PCM2900 PCM2902 SLES035E – MARCH 2007 – REVISED MARCH 2008 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 Description USB revision 1.1 compliant Device class 0x00 (device-defined interface level) Device subclass 0x00 (not specified) Device protocol 0x00 (not specified) Max packet size for end-point 0 8 bytes 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 0x80 (Bus powered, no remote Power attribute wakeup) 0x32 (100 mA. Default value, can be Max power 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. 20 Submit Documentation Feedback Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): PCM2900 PCM2902 |
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