3.2 Input and output connections
WF1945B
3-12
External AM input (EXT AM IN)
±42Vpeak
25
Ω
25
Ω
EXT AM IN
Input voltage :
-3 V to +1 V
(-100% output at -3 V, 0% output at -1 V, 100% output at +1 V)
Input impedance :
50
Ω
Modulation frequency : Up to 10 MHz
Ground :
Connected to signal ground (floating from chassis)
Do not apply a signal exceeding the above voltage. The unit can be damaged.
Synchronous operation input and output (
φ
-SYNC IN, OUT)
(Options, 1991 and 1994)
Do not connect.
Note:
Effective during continuous (Normal) oscillation mode.
Timing error: Maximum 35 ns per unit. Thus, phase error of 0.1 degree
at approx. 8 kHz and 1 degree at approx. 80 kHz.
Description: The clock is sent from Master to Slave to Slave. The
delay per unit is approximately 17 nanoseconds. The
clock period is approximately 25 ns. The phase
synchronizing pulse can be generated by any of the
master or slave units and sent toward the terminal. Delay
per unit is approximately 8 ns. Due to the phase
difference from this delay time, the error between
adjacent units is approximately 25 ns (clock period) + 8
ns (phase sync pulse delay) = 33 ns. The WF1945B,
WF1946B, WF1945A, WF1946A, WF1965, WF1966,
WF1945 (1945), WF1946 (1946), and WF1956 (1956)
equipped with the 1991 can be connected.
11
! CAUTION
Maximum number of connected units: 6
Summary of Contents for WF1945B
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