Tektronix 070-8462-03, Instruction Manual

Page: 67 / 271

Specifications
3–2
1735 HD High Definition Waveform Monitor
Table 3–1: Vertical deflection system (Cont.)
Characteristic
Check
step
Supplemental information Performance requirements
Offset CH2 and/or CH3 can be offset from
CH1 by
±
350 mV.
CHB can be offset from CHA by
±
350 mV.
14
DC Channel Matching
±
1 mV.
Maximum Absolute Input Level
±
12 VDC + peak AC. Input levels in
excess of 1.0 V peak-to-peak may
cause frequency response aberra-
tions.
DC Input Impedance (Unterminated) Greater than 15 k
W
.
Return Loss (75
W
) 23
Video Inputs At least 35 dB from 50 kHz to
30 MHz. Loop-through terminated in 75
W
.
Input in use or not in use, instrument
power on, all deflection factor
settings.
Crosstalk between Displayed Channels Greater than 45 dB of isolation
between channels. Measured at
30 MHz.
Loop-Through Isolation Greater than 80 dB of isolation
between loop-throughs, measured at
30 MHz.
CH1B Subtract
Common Mode Rejection > 30 dB from 50 kHz to 15 MHz.
>23 dB from 15 MHz to 30 MHz.
18
PIX MON OUT
Frequency Response 50 kHz to 30 MHz, within 5% of
response at 50 kHz. Terminated in 75
W
.
With 700 mV p-p test signal.
17
Differential Gain (50% APL) Less than 1% with a 1.0 V display. At 4.43 MHz.
DC Level on Output
±
0.1 V or less into 75
W
load. No input signal. 12
Intensification (Brightup) During Line Select only. Active video
of selected lines has a DC offset of
approx. 180 mV. 11
Output Impedance 75
W
(Nominal).
Return Loss (75
W
) At least 26 dB, 50 kHz to 30 MHz. With instrument turned on. 23
Input to PIX MON Output Gain Ratio 1:1
±
5% at 15 kHz. 11