NBSG16BAEVB, NBSG16VSBAEVB
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2
Setup for Time Domain Measurements
Table 1. Basic Equipment
Description
Example Equipment (Note 1)
Qty.
Power Supply with 4 outputs
HP6624A
1
Oscilloscope
TDS8000 with 80E01 Sampling Head (Note 2)
1
Differential Signal Generator
HP 8133A, Advantest D3186
1
Matched High Speed Cables with SMA Connectors
Storm, Semflex
4
Power Supply Cables with Clips
3/4 (Note 3)
1. Equipment used to generate example measurements within this document.
2. 50 GHz sampling head used (for effective rise, fall and jitter performance measurement)
3. An additional power supply cable with a surface mount clip is necessary to test the NBSG16VS due to the
V
CTRL
connection.
Setup
Connect Power
Step 1:
1a: Three power levels must be provided to the board for V
CC
, V
EE
, and GND via the surface
mount clips. Using the split power supply mode, GND = V
TT
= V
CC
– 2.0 V.
NBSG16/16VS Power Supply Connections
3.3
V Setup
2.5 V Setup
V
CC
= 2.0 V (Two Places)
V
CC
= 2.0 V (Two Places)
V
TT
= GND (One Place)
V
TT
= GND (One Place)
V
EE
= -1.3 V (One Place)
V
EE
= -0.5 V (One Place)
NBS/16VS Only Power Supply Connection
3.3
V Setup
2.5 V Setup
V
CTRL
(One Place)
V
CTRL
(One Place)
NOTE:
For NBSG16VS only: Adjustable power supply is needed to modulate output amplitude by
varying V
CTRL
pin as shown in Figures 2 through 6. Connect the V
CTRL
(Output Amplitude
Swing Control) voltage level for the desired output swing. Refer to NBSG16VS data sheet
Figures 4 and 5.
Connect Inputs
Step 2:
For Differential Mode (3.3 V and 2.5 V operation)
2a: Connect the differential output of the generator to the differential input of the device
(D and D).
For Single-Ended Mode (3.3 V operation only)
2a: Connect the AC coupled single-ended output generator to input.
NOTE:
Device may oscillate when the input is not driven. For best results, unconnected input should be
terminated to V
TT
through 50
resistor
