YMF743
PIN DESCRIPTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Name
DVdd1
XTL_IN
XTL_OUT
DVss1
SDATA_OUT
BIT_CLK
DVss2
SDATA_IN
DVdd2
SYNC
RESET#
PC_BEEP
PHONE
AUX_L
AUX_R
VIDEO_L
VIDEO_R
CD_L
CD_GND
CD_R
MIC1
MIC2
LINE_IN_L
LINE_IN_R
AVdd1
AVss1
Vref
I/O
-
I
O
-
I
I/O
-
O
-
I
I
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
-
-
AO
Function
Digital power supply (+3.3V / +5.0)
Connect to the digital ground with 0.1mF and 47mF capacitors.
Connect this pin to DVdd2.
24.576MHz Clock Input
24.576MHz Clock Output
Digital ground. Connect this pin to DVss2.
AC’97 Serial Input Stream
AC’97 Bit Clock
As an output pin at the primary codec where CODEC ID=00.
As an input pin at the secondary codec where CODEC ID=01,10,11.
Digital ground. Connect this pin to DVss1.
AC’97 Serial Output Stream
Digital power supply (+3.3V / +5.0)
Connect to the digital ground with 0.1mF and 47mF capacitors.
Connect this pin to DVdd1.
SYNC Input (Fixed at 48kHz)
Hardware Reset
PC Speaker Beep
Telephony Input
AUX Input Left Channel
AUX Input Right Channel
Video Audio Input Left Channel
Video Audio Input Right Channel
CD Audio Input Left Channel
CD Audio Analog Ground
Connect this pin to CD Ground or Analog Ground.
CD Audio Input Right Channel
Microphone Input 1
Microphone Input 2
Line Input Left Channel
Line Input Right Channel
Analog Power Supply (+5.0V)
Connect to the analog ground with 0.1mF and 47mF capacitors.
Connect this pin to AVdd2.
Analog ground. Connect this pin to AVss2.
Analog Reference Voltage
Connect to the analog ground with 0.1mF and 22mF capacitors.
Analog Reference Voltage Output
28
Vrefout
AO
Connect to the analog ground with 0.1mF and 22mF capacitors when
it is used to the external circuit.
3
December 18, 2000
ETC [ ETC ]
