D
Using the E6960-66600 Frequency Divider Board
72
Keysight E6961A User Guide and Method of Implementation
8
Power on the board by connecting a power source to the USB connector or to
the DC power jack. (4.5V to 5.5V @450mA).
At power on, the:
– Power LED PWR (D303) should light up as GREEN
– LED A (D302) should light up as GREEN
– LED B (D304) should light up as GREEN
Connector Description
This section describes the various user components on the E6960-26600.
USB type-B / DC Jack
Provides power to the fixture. Either the USB port or the 2.5 mm, center positive
DC Power input jack may be used. The USB jack is not used for any other purpose.
Input voltage is required to be 4.5V to +5.5V @500mA. Any voltage that is
out of specification will trigger a warning on the Power LED.
SMA
Provides an interface to feed the input signal into the test fixture. CH1 connector
is 50
Ω
terminated and CH2 connector is 10k
Ω
terminated.
BNC
Both J400 and J403 produce a separate output clock signal. The signals are
back-terminated by 50
Ω
.
Jumpers
Provides user the option to modify the test fixture circuitry.
J100
This jumper controls the output signal amplitude:
4.2Vpp:
Connect pin 1 and pin 2
3.3Vpp:
Connect pin 2 and pin 3
3.0Vpp:
Connect pin 3 and pin 4
