UDA1328 데이터 시트보기 (PDF) - Philips Electronics

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UDA1328

Multi-channel filter DAC

Philips Electronics 

Philips Semiconductors

Multi-channel filter DAC

Preliminary specification

UDA1328T

8.7.2 DE-EMPHASIS CONTROL

In static pin mode the pins DEEM0 and DEEM1 control the

de-emphasis mode; see Table 3.

Table 3 De-emphasis control

DEEM MODE

No de-emphasis

32 kHz de-emphasis

44.1 kHz de-emphasis

48 kHz de-emphasis

DEEM1

0

0

1

1

DEEM0

0

1

0

1

8.7.3 DIGITAL INTERFACE FORMATS

In static pin mode the digital audio interface formats can be

selected via pin 17 (SF1) and 19 (SF0). The following

interface formats can be selected (see also Table 4):

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

• LSB-justified format with data word length of

16, 20 or 24 bits.

Table 4 Input format selection in the static mode

INPUT FORMAT

SF1

SF0

I2S-bus

0

0

LSB-justified 16 bits

0

1

LSB-justified 20 bits

1

0

LSB-justified 24 bits

1

1

8.8 L3 mode

The device is set to L3 mode by setting the STATIC pin to

LOW. The device can then be controlled via the L3

microcontroller interface (see Chapter 9).

8.8.1 DIGITAL INTERFACE FORMATS

The following interface formats can be selected in the

L3 mode:

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

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

• LSB-justified format with data word length of 16, 18,

20 or 24 bits.

8.8.2 L3 ADDRESS

The UDA1328 can be addressed via the L3 microcontroller

interface using one of two addresses. This is done in order

to individually control the UDA1328 and other Philips

DACs or CODECs via the same L3 bus.

The address can be selected using pin 25 (DEEM0) in

L3 mode. When pin 25 is set LOW, the address is 000100.

When pin 25 is set HIGH the address is 000101.

It should be noted that the digital audio interface holds that

the BCK frequency can be 64 times the WS maximum

frequency, or fBCK ≤ 64 × fWS

2000 Jan 04

8

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