PCM2704CDB.B datasheet(22/53 Pages) TI2

Part #	PCM2704CDB.B

Description	PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output and S/PDIF Output

PDF	53 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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22 / 53 page

Start

Condition

Stop

Condition

Device Address

R/W

ACK

DATA

NACK

R/ : Read operation if ‘1’; otherwise, Write operation

ACK: Acknowledgement of a byte if ‘0’

DATA: 8 bits (1 byte)

NACK: No acknowledgement if ‘1’

PCM2704C, PCM2705C, PCM2706C, PCM2707C

SBFS036B – MAY 2015 – REVISED AUGUST 2015

www.ti.com

The data must be stored from address 0x00 and must consist of 57 bytes, according to these listed parameters:

•

Vendor ID (2 bytes)

•

Product ID (2 bytes)

•

Product string (16 bytes in ANSI ASCII code)

•

Vendor string (32 bytes in ANSI ASCII code)

•

Power attribute (1 byte)

•

Max power (1 byte)

•

Auxiliary HID usage ID in report descriptor (3 bytes)

Figure 28 shows the timing for an external ROM read operation. Table 3 summarizes the timing characteristics.

Figure 28. External ROM Read Operation

Table 3. External ROM Read Operation Characteristics

Device address

R/W

ACK

DATA

ACK

DATA

ACK

. . .

NACK

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Product Folder Links: PCM2704C PCM2705C PCM2706C PCM2707C

PCM2704CDB.B Datasheet(PDF) 22 Page - Texas Instruments

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