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UDA1384H

Multichannel audio coder-decoder

Philips Electronics 

Philips Semiconductors

UDA1384

Multichannel audio coder-decoder

3.3

VDDD

(V)

VDDA(AD)

Vref

C1 >

10 µF

9 kΩ

RESET

CIRCUIT

9 kΩ

mgu585

Fig 5. Power-on reset circuit

0

3.3

VDDA(AD)

(V)

0

Vref

(V)

1.65

1.25

0.75

0

>250 µs trst

Fig 6. Power-on reset timing

t

t

t

mgu586

8.11 Audio digital interface

The following audio formats can be selected via the microcontroller interface:

• I2S-bus format with data word length of up to 24 bits

• MSB-justified format with data word length of up to 24 bits

• LSB-justified format with data word length of 16 bits, 20 bits or 24 bits

• Multichannel formats with data word length of 20 bits or 24 bits. The used data lines

are DATAAD1 and DATADA1 and the sampling frequency must be below 50 kHz

The formats are illustrated in Figure 7 and Figure 8.

9397 750 14366

Product data sheet

Rev. 02 — 17 January 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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