3
dc1257bf
DEMO MANUAL DC1257B
HARDWARE SETUP
Figure 1. Demo Board DC1257B Layout
Figure 2. DC1257B Simplified Schematic with Recommended Output Termination for Driving an LTC2208 16-Bit ADC at 140MHz
V
+
V
CM
OUT
–
6416 F05
OUT
+
3.6V
2.2μF
IN
+
CLHI
CLLO
IN
–
LTC6416
1pF
1.5pF
1.5pF
3.3V
CLOCK
(130MHz)
DATA
16
V
CM
LTC2208
AIN
+
AIN
–
25Ω
25Ω
GND
GND
R36
100Ω
R15
100Ω
0.1μF
C39
0.01μF
3
2
1
6
4
50Ω
680pF
T1
TCM4-19+
+
–
