Cirrus Logic CRD4610-1 Reference Design page 15

CRD4610-1
CrystalClear™ AC '97 Motherboard Reference Design
J10
1
2
HDR2X1
C67
LINE_OUTR
LINE_OUTL
C68
DS241RD1C1
PC Speaker
IN
R32
4.7k
EMC
L7
R33
47k
31@ 100MHz
Figure 11. PC Speaker Input
10uF
ELEC
+
+
10uF
ELEC
R41 R42
1 MEG 1 MEG
AGND
Figure 12. Line Output
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
Tie to AGND rather than +5VA if
+5VA
PC_SPKR is driven by a gate or
buffer rather than a transistor
1
C122
0.1uF
2 Y5V
C123
2700pF
X7R
AGND
4
3
5
2
1
EMC
C69 C70 AGND
390pF 390pF
NPO NPO
CGND
PC_BEEP
J5
PHONO-1/8
Connect CGND to AGND at the jack
INTERNAL LINE OUT
J6
4
R
3
GND
2
GND
1
L
4X1HDR
AGND
15