STAC9758 Datasheet, PDF (24/119 Pages) Integrated Device Technology – HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS

STAC9758/9759
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
PC AUDIO
1 µF*
*OPTIONAL
820 pF
820 pF
Figure 9. Split Independent Power Supply Operation
*OPTIONAL
2 Ω*
Ferrite Bead
3.3V ± 5%
0.1 µF
1 µF
0.1 µF
0.1 µF
25
AVdd1
38
AVdd2
12
PC_BEEP
13
PHONE
14
AUX_L
15
AUX_R
16
MIC2_L
17
MIC2_R
18
CD_L
19
CD_GND
20
CD_R
21
MIC1
22
MIC2
23
LINE_IN_L
24
LINE_IN_R
32
CAP2
0.1 µF
STAC9759
29
AFILT1
30
AFILT2
AVss1
26
AVss2 DVss1
42 4
DVss2
7
1 µF
0.1 µF
(Near Clk source)
1
9
DVdd1 DVdd2
2
XTL_IN
XTL_OUT
3
OPTIONAL
27 pF
CLOCK_IN*
*Add resistive divider
when using 5V clock.
24.576 MHz
0Ω
27 pF
5
SDATA_OUT
6
BIT_CLK
8
SDATA_IN
10
SYNC
11
RESET#
45
GPIO3
46
CID1
47
EAPD/SPDIFI
VREFOUT ²⁸
VREF ²⁷
22 Ω
EMI
Filter
27 pF
TUNE TO LAYOUT
1 µF
31
GPIO0
33
GPIO1
34
GPIO2
48
SPDIFO/ADAT
44
LFE
43
CTR
35
FRONT_L
36
FRONT_R
37
MONO_OUT
HP_OUT_L ³⁹
40
AVSS3
41
HP_OUT_R
*Terminate ground
plane as close to codec
as possible
Analog
Ground
Digital
Ground
NOTE: If pin 48 is held high at powerup, register 28h (Extended Audio ID), bit [2] will be held to zero,
to indicate the SPDIF is not available. Tie pin 48 to ground with a 10 KΩ resistor to ensure SPDIF is
enabled.
IDT™
24
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
V 1.2 1206