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The LT 443D-BL Analog Black Signal Unit adds the 20 format HDTV analog tri-level sync signal, 525p/625p analog sync signals, and NTSC/PAL black burst signals output capability to the LT 443D mainframe. Three independent output systems (six outputs, two outputs per system) are provided to output multiformat black sync signal.

The format and output signal timing can be respectively set each output. The ten-field black signal with ID conforming to the SMPTE 318M standards is also available. The entire range of timing can be set for the 525p/625p analog sync signals and NTSC/PAL black burst signals in 54 MHz clock steps. The entire range of timing can also be set for the HDTV analog tri-level sync signal in 74.25 MHz or 74.25/1.001 MHz clock steps.

Analog Sync Signal Output (BLACK1, 2/BLACK3, 4/BLACK5, 6)
Number of Outputs	2
Format	HDTV tri-level sync signal conforming to SMPTE 240M/274M/296M standards 525p/625p analog sync signal conforming to SMPTE 293M/ITU-R BT 1358 standards NTSC black burst signal conforming to SMPTE RP-154/SMPTE 170M/SMPTE 318M standards PAL black burst signal conforming to ITU-R BT. 470-6 standards
Sync Level (into 75Ω)	HDTV: Positive polarity: 300 mV ±6 mV Negative polarity: -300 mV ±6 mV 525p: -300 mV ±6 mV 625p: -300 mV ±6 mV NTSC: 40 IRE ±1 IRE PAL: -300 mV ±6 mV
Blanking Level	0 mV ±15 mV
Rise and fall times	HDTV: 54 ns ±20 ns 525p: 70 ns ±10 ns 625p: 100 ns ±10 ns NTSC: 140 ns ±10 ns PAL: 200 ns ±10 ns
Horizontal Sync Width	1125-Line: Positive polarity: 593 ns ±40 ns Negative polarity: 593 ns ±40 ns 750-Line: Positive polarity: 539 ns ±40 ns Negative polarity: 539 ns ±40 ns 525p: 2.35 μs ±0.05 μs 625p: 2.35 μs ±0.05 μs NTSC/PAL: 4.7 μs ±0.1 μs
Vertical Sync Width	HDTV: 5H 525p: 6H 625p: 5H NTSC: 3H PAL: 2.5H
Output Impedance	75Ω
Output Connector	BNC (BLACK 1, 2/BLACK 3, 4/BLACK 5, 6)
Number of Outputs	2 each
Timing Variable	H-PHASE: Up to ±1 line-1 dot Resolution: Variable in 1 dot steps (54 MHz, 74.25 MHz, or 74.25/1.001 MHz converted into clock frequency) V-PHASE: Up to ±1 frame-1 line Resolution: Variable in 1 line steps F-PHASE: Up to ±5 frames (depends on the input signal format.) Resolution: Variable in 1 frame steps
Environmental Conditions
Operating Temperature Range	0 to 40°C
Operating Humidity Range	≤ 90 % RH (without condensation)
Spec Guaranteed Temperature Range	10°C to 35°C
Spec Guaranteed Humidity Range	≤ 85% RH (without condensation)
Operating Environment	Indoor use
Operating Altitude	Up to 2,000m
Overvoltage Category	I
Pollution Degree	2
General
Power Source	Supplied by the LT 443D mainframe
Dimensions	79 (W) x 41 (H) x 371 (D) mm (excluding projections)
Weight	Approx. 0.4 kg