Semtech EB-GS2971 - Cable Driver Schematic

EB-GS2971
Evaluation Board User Guide
52169 - 2 June 2012
10 of 22
Proprietary & Confidential
2.2 Cable Driver Schematic
Figure 2-2: Cable Driver Schematic
R41
75R
R92
10K
R43
75R
C48
10n
75-ohm traces
A_GND
C52 4u7
JP4
R48
49R9
R49
49R9
C57
10n
SDI
1
SDI
2
NC
5
GND
3
DISABLE
6
NC
14
SD/HD
10
TAB NC
8
SDO
11
SDO
12
NC
15
NC
13
NC
7
RSET
4
VCC
9
NC
16
U7
GS2978
A_GND
C50 4u7
SD closed
HD open
A_GND
LOOP-THROUGH
L4 5n6
R47 75R
R40
750R
+3.3V
R44 75R
C47
10n
+3.3V
C20
10n
R94
0R
C22
1u
C23
10n
R9
0R
C21
1u
A_GND
VCC_3.3V
+3.3V
GND
CD Power Decoupling & Filtering
CD
SDO
SDI OUT
SD_EN/DIS
SD_EN/DIS
A_GND
SDO
SDO
SDO
A_GND
A_GND