Cirrus Logic CRD4610-1 Reference Design page 12

VREF
HP_OUT_R
J8
4
3
HEADPHONE OR
5
MIC2 AND RIGHT
2
HEADPHONE JACK
1
PHONO-1/8
Connect CGND to
AGND at the jack
AGND
DO NOT POPULATE
R25
0
R25
HP_OUT_L
L AND R HEADPHONES:
POPULATE R26 AND R24
DO NOT POPULATE R25
R HEADPHONE AND MIC2:
POPULATE R25
DO NOT POPULATE R26 AND R24
Figure 6. Headphone or Headset Connection and Microphone 2 Amplifier
12
AGND
U6A
4
2
-
3
+
MC33078D
+5VA
8
R18
C84
EMC
C86 C87
390pF 390pF
NPO NPO
CGND
R24
AGND
0
R26
0
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
CrystalClear™ AC '97 Motherboard Reference Design
+5VA
C80
1
0.1uF
Y5V
AGND
2.2k R19
47k
R21 47
C82
100pF
NPO
0.33uF
X7R AGND
R23
6.8k
+
C88
3.3uF
ELEC
AGND
CRD4610-1
R22 47k
220pF
C83 NPO
U6B
AGND
4
6
-
7
C85 0.33uF
5
X7R
+
MC33078D
+5VA
8
DS241RD1C1
MIC2