Tektronix WFM90D, Quick Start Manual

Page: 25 / 170

Specifications
WFM90D and WFM91D Service Manual
1- 7
Table 1- 6: Synchronization
Category Description
Input Requirements
REQ:
Internal Reference
Analog Input:
Composite video or black burst with sync amplitudes 40 IRE (300 mV PAL)
6 dB.
Digital Input:
270 Mbit (259M).
REQ:
External Reference:
Sync amplitude between 143 mV and 4 V will synchronize sweeps.
External Reference Input
REQ:
DC Input Impedance (Unterminated):
≥
15 k
Ω
.
REF:
Return Loss (75
Ω
):
≥
40 dB from 50 kHz to 6 MHz. (With 75
Ω
termination on, instrument power on.)
REF:
Absolute Maximum Input Voltage: 12 VDC plus peak AC.
Table 1- 7: Power source
Category Description
Battery
REF:
6 C-cell batteries or Tektronix NiMH battery pack (Tektronix Part No. 146-0107-01).
Battery Charge Time
REF:
Fast Charge: 550 mA.
REF:
Slow Charge: 150 mA.
Power Consumption
REF:
Picture Mode: 7 Watts.
Waveform Mode
9 W.
Vector Mode 9 W.
External Power
REQ:
DC Source of 11 -- 18 V.
Physical Characteristics
Table 1- 8: Physical characteristics
Category Description
Dimensions
REF:
Instrument:
5 inches (127 mm).
3.15 inches (80.0 mm).
9.6 inches (243.8 mm).
Shipping Box:
13.25 x 13.75 x 6 inside
14 x 14.25 x 6.25 outside