Daewoo DSL-19M1WC Service Manual page 52

The WM8714 supports I
The WM8714 is an ideal device to interface to AC-3
applications, or for use in DVD players.
·FEATURES
·Stereo DAC
·Audio Performance
- 95dB SNR ('A' weighted @ 48kHz) DAC
- -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
1. BIT3193
High Performance PWM Controller
BIT3193 integrated circuit provides the essential features for general purpose PWM controller in a small low cost
16-pin package. BIT3193 has built-in a low frequency PWM generator for any specified application. BIT3193 includes
latched off protection feature may make the system more reliable while compare to other similar products.
·Features
·4.5V ～ 8V operation
·Fixed High Frequency, Voltage Mode PWM Control
·Latched Off Protection
·Build-In Low Frequency PWM Generator
·Build-in UVLO
2
S, and right Justified audio data interfaces.
TYPE
Digital input
Digital input
Digital input
No connect
Analogue output
Analogue output
Supply
Supply
Analogue output
Digital input
No connect
Digital input
Digital input
Digital input
ICS ON HI-VOLTAGE BOARD
TM TM
, DTS , and MPEG audio decoders for surround sound
·APPLICATIONS
·DVD Players
·Digital TV
·Digital Set Top Boxes
DESCRIPTION
Sample rate clock input
Serial audio data input
Bit clock input
No internal connection
Analogue internal reference
Right channel DAC output
Negative supply
Positive supply
Left channel DAC output
Soft mute control, Internal pull down
High = Mute ON Low = Mute OFF
No internal connection
De-emphasis select, Internal pull up
High = de-emphasis ON Low = de-emphasis OFF
Data input format select, Internal pull up
Low = 16-bit right justified
System clock input
51
2
High = 16-24-bit I S