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System Clock

SUB

SUB

PCM4104

PCM4104

Device #1

(Sub−Frame 0)

Device #2

(Sub−Frame 1)

SCKI

V

CC

FSX

CLKX

DX

LRCK

BCK

DATA0

LRCK

BCK

DATA0

DSP

SCKI

LRCK

Normal, Zero BCK Delay

LRCK

Normal, One BCK Delay

LRCK

Inverted, Zero BCK Delay

LRCK

Inverted, One BCK Delay

DATA0

Supports 8 Channels, or

two PCM4104 devices.

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

Slot 7

Slot 8

Ch. 1

Ch. 2

Ch. 3

Ch. 4

Ch. 1

Ch. 2

Ch. 3

Ch. 4

Sub−Frame 0

(SUB = 0)

Sub−Frame 1

(SUB = 1)

One Frame

BCK = 192f

In the case of BCK = 192f

In the case of BCK = 256f

The audio data is left justified in the time slot, with the the least significant 8 bits of each time slot being don’t care bits.

Audio data is always presented in two’s complement, MSB−first format.

TDM Data Formats

− Long Frame

Supported for Single and Dual Rate Sampling Modes Only

PCM4104-EP

SBAS419 – JUNE 2007

Figure 12. TDM Connection

Figure 13. TDM Data Formats: Long Frame

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