AD1980 datasheet(29/32 Pages) AD

29 / 32 page

REV. 0

AD1980

–29–

Vendor ID Register (Index 7Ch–7Eh)

Reg

No. Name

D15

D14 D13

D12

D11

D10

Default

7Ch Vendor ID1 F7

4144h

S[7:0]

This register is ASCII encoded to A.

F[7:0]

This register is ASCII encoded to D.

Reg

No. Name

D15 D14 D13 D12 D11 D10 D9

Default

7Eh Vendor ID2 T7

REV7 REV6 REV5 REV4 REV3 REV2 REV1 REV0 5370h

T[7:0]

This register is ASCII encoded to S.

REV[7:0]

This register is set to 70h identifying the AD1980.

Codec ID and Clock Selection Table

XTL_IN

ID1#

IDO#

Codec ID

Codec Clocking Source

GND

SECONDARY, ID = 3

12.288 MHz (BIT_CLK from Primary Codec)

GND

SECONDARY, ID = 2

12.288 MHz (BIT_CLK from Primary Codec)

GND

SECONDARY, ID = 1

12.288 MHz (BIT_CLK from Primary Codec)

XTAL

PRIMARY, ID = 0

24.576 MHz Local XTAL or External CLK

into XTL_IN

CLK INPUT

PRIMARY, ID = 0

14.3181 MHz (External into XTL_IN)

CLK INPUT

PRIMARY, ID = 0

48.00 MHz (External into XTL_IN)

CLK INPUT

RESERVED

Note that internally, the

ID pins have weak pull-ups and are inverted.

AD1980 Datasheet(PDF) 29 Page - Analog Devices

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