Cirrus Logic CRD4610-1 Reference Design page 17

CRD4610-1
CrystalClear™ AC '97 Motherboard Reference Design
JACX
JBCX
JBCY
JACY
JAB1
JBB1
JBB2
JAB2
MIDIIN
C89 C90 C91
5600pF 5600pF 5600pF
X7R X7R X7R
MIDIOUT
J5 JOYSTICK
SUPPLY PINS
+5V_JOY
PIN 1
C107
1
Y5V
0.1uF
2
CGND
DS241RD1C1
RP11
1 8
8 7 6 5
2 7
3 6 R27
4 5
47k
2.2k
1 2 3 4
C92 C93 C94 C95
1 1 1
5600pF 1000pF 1000pF 1000pF
X7R X7R
X7R X7R
2 2 2
DGND
1
2
RP13
+5V_JOY
PIN 1 PIN 8 PIN 8
C108 C111 C112
1
X7R Y5V X7R
1000pF 0.1uF 1000pF
2
CGND
Figure 14. MIDI and Joystick Connection
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
+5V_PCI +5V_JOY
RP12
4.7k
C96 C97 C98 C99 C100
1
1000pF 100pF 100pF 100pF 100pF
NPO NPO NPO NPO
X7R
2
+5V_PCI
4
3
Q1
3
39k
1
MMBT2907ALT1
2
R30
10K
MMBT3904LT1
R31
20K
DGND
C101 C102 C103 C104 C105 C106
100pF 100pF 100pF 100pF 100pF 100pF
NPO NPO NPO NPO NPO NPO
EMC
CGND CGND
MIDI_BUF
R28
0
DO NOT
POPULATE
R29
5.1K
Q2
3
1
2
DGND
CGND
16
1 J9
9
DB15
2
10
3
11
4
12
5
13
6
14
7
15
8
17
CGND
17