AD1819B

–8–

REV. 0

PIN CONFIGURATION

48-Terminal LQFP

(ST-48)

36

35

34

33

32

31

30

29

28

27

26

25

13 14 15 16 17 18 19 20 21 22 23 24

1

2

3

4

5

6

7

8

9

10

11

12

48 47 46 45 44

39 38 37

43 42 41 40

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

LINE_OUT_R

LINE_OUT_L

CX3D

RX3D

FILT_L

FILT_R

AFILT2

XTL_IN

XTL_OUT

SDATA_OUT

BIT_CLK

SDATA_IN

SYNC

RESET

PC_BEEP

NC = NO CONNECT

AFILT1

AD1819B

PIN FUNCTION DESCRIPTIONS

Digital I/O

Pin Name

LQFP

I/O

Description

XTL_IN

2

I

24.576 MHz Crystal or Clock Input

XTL_OUT

3

O

24.576 MHz Crystal Output

SDATA_OUT

5

I

Serial Data Output. Serial, Time Division Multiplexed, AD1819B Input Stream

BIT_CLK

6

O/I*

Bit Clock Input, 12.288 MHz Serial Data Clock. Daisy Chain Output Clock

SDATA_IN

8

O

Serial Data Input. Serial, Time Division Multiplexed, AD1819B Output Stream

SYNC

10

I

48 kHz Fixed Rate Sample Sync Clock

RESET

11

I

Reset. AC-Link Master Hardware Reset

*Input if the AD1819B is configured as Slave 1 or Slave 2.

Daisy Chain Connections

Pin Name

LQFP

I/O

Description

CS0

45

I

Daisy Chain Codec Select

CS1

46

I

Daisy Chain Codec Select

CHAIN_IN

47

I

Daisy Chain Data Input

CHAIN_CLK

48

I/O*

24.576 MHz Buffered Clock Input/Output

*Output when configured as Master. Input when configured as Slave 1 or Slave 2.