Daewoo DSL-15M1TC Service Manual page 54

24-bit, 96kHz Stereo DAC
9. WM8714
The WM8714 is a high performance stereo DAC designed for audio applications such as
DVD, home theatre systems, and digital TV. The WM8714 supports data input word lengths
from 16 to 24-bits and sampling rates up to 96kHz. The WM8714 consists of a serial interface
port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a 14-pin
SOIC package.
The WM8714 has a hardware control interface for selection of audio data interface format,
mute and de-emphasis. The WM8714 supports I
The WM8714 is an ideal device to interface to AC-3
decoders for surround sound applications, or for use in DVD players.
·FEATURES
·Stereo DAC
·Audio Performance
- 95dB SNR ('A' weighted @ 48kHz) DAC
Boxes
- -90dB THD
·DAC Sampling Frequency: 8kHz – 96kHz
·Pin Selectable Audio Data Interface Format
2
- I S, Right Justified or DSP
·3-5V Supply Operation
·14-pin SOIC Package
·Pin Compatible with WM8725
·Pin Description
PIN NAME
1 LRCIN
2 DIN
3 BCKIN
4 NC
5 CAP
6 VOUTR
7 GND
8 VDD
9 VOUTL
10 MUTE
11 NC
12 DEEMPH
13 FORMAT
14 MCLK
2
S, and right Justified audio data interfaces.
TYPE
Digital input Sample rate clock input
Digital input Serial audio data input
Digital input Bit clock input
No connect No internal connection
Analogue output Analogue internal reference
Analogue output Right channel DAC output
Supply Negative supply
Supply Positive supply
Analogue output Left channel DAC output
Digital input Soft mute control, Internal pull down
High = Mute ON
No connect No internal connection
Digital input De-emphasis select, Internal pull up
High = de-emphasis ON
Digital input Data input format select, Internal pull up
Low = 16-bit right justified
Digital input System clock input
53
TM TM
, DTS , and MPEG audio
·APPLICATIONS
·DVD Players
·Digital TV
·Digital Set Top
DESCRIPTION
Low = Mute OFF
Low = de-emphasis OFF
High = 16-24-bit I
2
S