STAC9220 Datasheet, PDF (28/172 Pages) Integrated Device Technology – 8-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9220/9221/9223
8-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
5.4. STAC9220/9223 Split Independent Power Supply for 48-pin LQFP
Figure 4. Split Independent Power Supply STAC9220/9223
*O PT IO N A L
2 Ω*
Ferrite Bead
3.3V ± 5%
1 µF
0.1 µF
1 µF
0.1 µF
38
AVdd2
2
Volume Up
3 _{Volume Down}
EMI _{22 Ω}
Filter
27 pF
TUNE TO LAYOUT
LINK PINS
5
SDATA_OUT
6
BIT_CLK
8
SDATA_IN
10
SYNC
11
RESET#
33
1 µF
CAP2
1 µF
27 Vref Filt
FILTER PINS
820 pF
31
A F ILT 2
30 _AFilt1
820 pF
12
PC Beep
14 _{Port E_L}
15
Port E_R
STANDARD
ANALOG I/O
N.C. = No Connect
18 _{CD_L}
19 _{CD_G}
20 _{CD_R}
AVss1
26
25
AVdd1
1
9
DVdd DVdd
13
SENSE_A
34
Sense B
Sense Pins
STAC9220
3.3V Analog
in 48-pin LQFP
N.C. ⁴⁰
N.C. ⁴³
GPIO/LR_CLK ⁴⁴
GPIO/SDATA ⁴⁵
GPIO/SCLK ⁴⁶
SPDIF_IN/EAPD ⁴⁷
SPDIF_OUT ⁴⁸
Vref OutD ³²
Vref OutB 28
Vref OutA 37
1 µF
1 µF
29
Vref OutC
1 µF
SPDIF I/O
GPIO PINS
1 µF
0.1 µF
* O P T IO NA L
0.1 µF
*OPTIONAL
0.1 µF
*OPTIONAL
Mic Bias
0.1 µF
*OPTIONAL
AVss2 DVss
42 4
DVss2
7
21
Port B_L
Port B_R ²²
23
Port C_L
Port C_R ²⁴
Port D_L ³⁵
Port D_R 36
Port A_L ³⁹
Port A_R ⁴¹
Port F_L 16
Port F_R 17
UNIVERSAL
JACKS^TM
PINS
*Terminate ground
plane as close to codec
as possible
Analog
Ground
D ig ita l
Ground
IDT™
8-CHANNEL HIGH DEFINITION AUDIO CODEC
28
STAC9220/9221/9223
V 0.96 102706