Atec Tektronix-TG700 - Manual (Page 10)

Data Sheet
LTC Input
Characteristic Description
LTC Input LTC1 can be configured as an input or an output
Formats 23.98, 24, 25, 30 fps drop-frame as per SMPTE 12M
Timing to Video Compliant with SMPTE 12M and continues to operate
over at least 90% of possible timing range
Signal Voltage Range 0.5 to 10 V
p-p
differential, 1 to 5 V
p-p
single ended
Noise Tolerance –30 dB SNR RMS white noise with 10 kHz BW to the
p-p signal level, or –10 dB SNR for 5 MHz white noise
Hum Tolerance 0 dB hum-to-signal ratio
Error Immunity 100 consecutive frames with consistent time code must
be detected for time to be considered valid
Input Impedance Nominal 600 Ω differential, 300 Ω single ended
LTC Output
Characteristic Description
Outputs 4 independent
Connector Available through D-sub 15-pin connector. Optional
break-out cable to XLR connectors available
Formats 24 fps (24 Hz or 23.98 Hz), 25 fps, 30 fps, 30 fps
drop-frame as per SMPTE 12M
Source Time-of-day with adjustable offset, or program
(elapsed) time counter
Output Amplitude 5 V ±10%
Adjustable from 0.5 V to 5 V in 0.5 V steps
Network Time Protocol
Characteristic Description
Mode Server only, using Ethernet interface on the TG700
mainframe
Standard SNTPv3 for IPv4, per RFC 2030
General Purpose Interface
Characteristic Description
Connector Available through D-sub 15-pin connector. Optional
break-out cable to BNC connectors available
Outputs Two, user-selectable to assert when GPS
synchronization is lost, GPS signal falls below
threshold, or elapsed time value reaches set value. In
Genlock mode, user-selectable to assert on loss-of-lock
or near loss-of-lock
Output Level 0.5-5 V
Input One, user-selectable to signal GPS reacquisition or
restart timer
Input Level 0.8-2.4 V
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