Elgar SmartWave SW1750A, Operation Manual

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SW 5250A•SW 3500A•SW 1750A General Description
Operation Manual 1-11
•
SYNC OUT. User programmed for:
Cycle Start, all cycles
Segment Start. all segments
Segment Start, selected segments
For loads
≥
2 k
Ω
: Vout
≤
1V Low State; Vout
≥
2.4V High State; Negative edge is
at 0° ±30
µ
s.
•
CLOCK/LOCK – Input/Output Connection
CLOCK configures BNC to output pulses at programmed frequency for loads
≥
2
k
Ω.
Vout
≤
1V Low State; Vout
≥
2.4V High State. Negative edge is at 0° ±30
µ
s.
LOCK configures BNC to input 'TTL' frequency; signal needs to supply pull down
current of 15 mA with voltage drop of
≤
0.6V; no pull up needed. Negative edge
is at 0° ±30
µ
s.
•
PLL Specifications
External PLL input frequency range is 40.00 Hz to 5000.00 Hz.
Tracking range is ±10% of programmed PLL center frequency.
External PLL input duty cycle is 50% ±10%.
External PLL input slew rate is .02% of input frequency/second, maximum, which
produces a maximum phase shift of 5° from the external PLL input falling edge to
the output rising edge.
The rising edge of the output will be locked to the falling edge of the external PLL
input and will have less than a 30
µ
sec propagation delay.
Maximum output jitter when locked is <1% of external PLL input period.
PLL lock is achieved in <5 seconds.
•
External Amplitude Modulation
0 to 5 VRMS provides 0 to
≥
20% output amplitude modulation
(±2% of full scale output).
•
External Direct Input
Normal Amplifier, 0 to 5 VRMS (DC to 5 kHz) or ±5 VDC input for zero to full
scale programmed voltage output (±2% of full scale output).