Tektronix 1740A Series, User Manual

Page: 28 / 368

Specification
1740A/1750A/1760 – Series Service Manual
1–8
Table 1–7: Vector Mode
CATEGORY
DESCRIPTION
Input Requirements 1 V
p–p
6 dB
RI:
Instrument freeruns with no input
RI:
External Reference: Black burst or composite video
Nominal Subcarrier Frequency (F
SC
) RI: NTSC 3.579545 MHz
PAL 4.43361875 MHz
Chrominance Processing Bandwidth (–3 dB) 1 MHz 200 kHz
Performance Verification Procedure Step
: 15
PAL +V RI: V Axis is inverted at 1/2 video line rate
Display Phase Accuracy Error 1.25
°
Performance Verification Procedure Step : 23
Display Gain Accuracy Error 2.5% with 75% amplitude color bars
Performance Verification Procedure Step
:
23
Quadrature Phasing Error 0.5
° 〈
Bursts set to targets)
Performance Verification Procedure Step : 22
Subcarrier Regenerator Pull-in Range NTSC
:
50 Hz
PAL: 10 Hz
Performance Verification Procedure Step
:
24
Subcarrier Regenerator Pull-in Time
RI:
2 seconds
Phase Shift with F
SC
Change NTSC: 2
°
(F
SC
to F
SC
50 Hz)
PAL: 2
°
(F
SC
to F
SC
10 Hz)
Phase Shift with Burst Amplitude Change of
6 dB
2
°
Performance Verification Procedure Step : 25
Phase Shift With Video Input Channel Change 1
°
RI: With external reference selected. Typically 0.5
°
Performance Verification Procedure Step : 27
Phase Shift With Variable Gain C3 dB to
–6 dB. 0.5
°
Performance Verification Procedure Step : 26
Burst Jitter RI: 0.5
°
rms
Clamp Stability 1/64 inch (0.4 mm)
RI: Center spot movement with rotation of the phase control
Performance Verification Procedure Step : 28
Phase Control Range
RI:
360
°
continuous rotation
Performance Verification Procedure Step
:
28
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com