PCM1606

SLES014B − OCTOBER 2001 − REVISED AUGUST 2002

11

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timing requirements (continued)

LRCK

BCK

LOW Fix

1

23

MSB

1

2

24

3

22

Channel 1

24

Channel 2

Channel 6

1

2

LOW Fix 64 Bit

LRCK

BCK

1

23

1

2

24

3

22

24

1

2

LRCK

BCK

LOW Fix

1

1

2

24

LOW Fix

1

LOW Fix

64 BCK

64 BCK

Channel 1

LOW Fix

LOW Fix

LOW Fix

LOW Fix 64 Bit

Channel 1

Channel 2

Channel 3

Channel 6

LSB

LSB

MSB

MSB

LSB

MSB

LSB

1/fS

BCK = 256 fS

1/fS

BCK = 128 fS

1/fS

BCK = 512 fS

Channel 2

(4) TDM Data Format

Channel 3

32 BCK

32 BCK

32 BCK

32 BCK

Figure 6. Audio Data Input Format (Continued)

functional description

The PCM1606 has several built-in functions including digital input data format selection and digital

de-emphasis. These functions are hardware controlled with static control signals and used on pin FMT1 (pin 4),

pin FMT0 (pin 5), pin DEMP1 (pin 17), and DEMP0 (pin 16).

data format selection

The PCM audio data format can be selected by pin FMT1 (pin 4) and FMT0 (pin 5) as shown in Table 4.

Table 4. Data Format Control

FMT1 (pin 4)

FMT0 (pin 5)

AUDIO INTERFACE

LOW

LOW

I2S

LOW

HIGH

TDM

HIGH

LOW

Standard

HIGH

HIGH

Left-justified