WM8733

Product Preview

WOLFSON MICROELECTRONICS LTD

PP Rev 1.3 July 2000

8

MSB

MSB

LSB

LSB

LEFT CHANNEL

RIGHT CHANNEL

LRCIN

BCKIN

DIN

AUDIO DATA WORD = 16-BIT

1/fs

14 15 16

12

3

1

14 15 16

12

3

15 16

Figure 3 16-bit Normal Packed Mode

MSB

MSB

LSB

LSB

LEFT CHANNEL

RIGHT CHANNEL

LRCIN

BCKIN

DIN

AUDIO DATA WORD = 18-BIT

1/fs

16 17 18

12

3

1

16 17 18

12

3

17 18

Figure 4 18-bit Normal Packed Mode

MODE SELECT PINS

The WM8733 has four possible modes.

SEL0

SEL1

MODE

0

0

1

1

0

1

0

1

Normal stereo operation

Power down

Left only differential output

Right only differential output

Table 4 Mode Select Pins

The SEL0/1 pins (pins 4 and 11) can be hard wired, or left floating as internal “pull-downs” will cause

the device to operate in normal stereo mode.