uda1338h-n1 NXP Semiconductors, uda1338h-n1 Datasheet - Page 7

• Manufacturer Part Number: uda1338h-n1
• Description: Multichannel Audio Coder-decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Functional description
9397 750 14389
Product data sheet
8.1 System clock
Table 4:
The UDA1338H operates in slave mode only; this means that in all applications the
system must provide either the system clock (the bit clock for the voice ADC) or the word
clock.
The audio ADC part, the voice ADC part and the DAC part can operate at different
sampling frequencies (DAC-WS and ADC-WS modes) as well as a common frequency
(SYSCLK, WSDA and DSD modes).
The voice ADC part supports a sampling frequency up to 50 kHz and the audio ADC
supports a sampling frequency up to 100 kHz. The DAC sampling frequency range is
extended up to 200 kHz with the range above 100 kHz being supported through 192 kHz
sampling mode, which halves the oversampling ratio of SYSCLK and internal clocks.
The mode of operation of the audio and voice channels can be set via the L3-bus or
I
When applied, the system clock must be locked in frequency to the corresponding digital
interface clocks.
The voice ADC part can either receive or generate the WSV signal as shown in
Table 5:
Type
DIS
DO
DS
IIC
Mode
SYSCLK
DAC-WS
ADC-WS
WSDA
DSD
2
C-bus microcontroller interface and are summarized in and
Pin types
Audio ADC and DAC operating clock mode
Description
digital Schmitt-triggered input
digital output
digital supply
input and open-drain output for I
Audio ADC
Clock
SYSCLK
SYSCLK
WSAD
WSDA
SYSCLK
…continued
Rev. 03 — 16 February 2005
Frequency
256f
or 768f
256f
or 768f
1f
1f
44.1 kHz
s
s
s
s
, 384f
, 384f
2
s
s
C-bus
s
s
512
, 512f
, 512f
s
s
Multichannel audio coder-decoder
Audio DAC
Clock
SYSCLK
SYSCLK
WSDA
SYSCLK
SYSCLK
WSDA
SYSCLK
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Table
UDA1338H
6.
Frequency
256f
or 768f
128f
or 384f
sampling mode
1f
256f
or 768f
128f
or 384f
sampling mode
1f
44.1 kHz
s
s
s
s
s
s
, 384f
, 192f
, 384f
, 192f
s
s
s
s
; 192 kHz
; 192 kHz
Table
s
s
s
s
512
, 512f
, 256f
, 512f
, 256f
7 of 54
6.
s
s
s
s