Specifications
3–6
1735 HD High Definition Waveform Monitor
Table 3–6: External horizontal
Characteristic
Performance requirements
Supplemental information
Check
step
External Horizontal
A +5 V to –5 V ramp wi ll result in a
left-to-right displacement of 9 div.,
±
1 major div.
Internal jumper is used to select
Positive or Inverted polarity.
7
Table 3–7: Synchronization
Characteristic
Performance requirements
Supplemental information
Check
step
Input Requirements
internal reference
Video or black burst with sync
amplitudes 300 mV
±
6 dB or tri-level
sync of
±
300 mV
±
6 dB.
4
external reference
Sync amplitude between 143 mV
and 4 V will synchronize sweeps.
4
EXT REF Input
DC Input Impedance (Unterminated)
Greater than 15 k
W
.
Return Loss (75
W
)
At least 33 dB from 50 kHz to
30 MHz.
Loop-through terminated in 75
W
,
instrument power on or off.
23
Absolute Maximum In put Voltage
±
12 VDC plus peak AC.
Remote Sync
Amplitude
TTL threshold.
Input and enabled through rear-panel
REMOTE connector.
30/60 Hz (25/50 Hz) squarewave will
sync TWO FIELD sweep.
Remote sync bypasses sync stripper
and field ID circuits.
Remote Sync Polarity
Internal jumper selects polarity.
Normal: Negative-going edge line
sync, positive edge of field sync.
Inverted: Positive-going edge line
sync, negative edge of field sync.
Содержание 070-8462-03
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