LEADER LT1606 User Manual

Video encoder

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The LT 1606 extends the flexibility of programmable
RGB generators, in terms of stock and custom patterns
and raster parameters (within limits), into the testing of
monitors and systems that operate in fully encoded
NTSC, PAL and the new HDTV analog-component sys-
tems. NTSC and PAL outputs contain fully encoded sub-

carrier and burst and are available in full composite and
separate Y/C using the standard 4-pin SVHS connector.
Analog-component feeds YPbPr, as well as actively
buffered RGB, are available at the same time, making the
encoder an extremely useful tool for engineering, setup
of HDTV projectors, service and QC applications.

Video Encoder

LT 1606

Generates NTSC, PAL and HDTV Analog Components
Operates from R, G, B, CS and Clock from RGB Generators

LT 1610A, LT 1611, LT 1613, LT 1615

NTSC, PAL or HDTV Set Up Automatically from Input Clock
NTSC and PAL Outputs in Full Composite, Separate Y and C

and Analog Components YPbPr

HDTV Includes 1080i, 1080p, 720p, 480i, 480p and Others

HDTV Analog are 3-Wire YPbPr with Tri-Level Sync

Simultaneous Active RGB Outputs to Drive RGB Monitors

K E Y S P E C I F I C A T I O N S

INPUT SIGNAL REQUIREMENTS

Analog GBR
Polarity

Positive

Level

714 mV for NTSC output
700 mV for PAL, HDTV outputs

Maximum Input Level

1.5 V p-p

Input Coupling

DC

Input Impedance

75

Input Terminals/Type

3/BNC

COMPOSITE SYNC SIGNAL INPUT

Polarity

Negative

Amplitude

C-MOS/TTL Level (H=4V or more,
L=1V or less)

H Sync Width

NTSC: 2.79 µs - 5.3 µs
PAL:

3.21 µs - 5.46 µs

HDTV: 0.30 µs - 1.20 µs

Terminal/Type

1/BNC

CLOCK INPUT

Frequency

NTSC: 14.318 MHz
PAL:

17.734 MHz

480i:

13.5 MHz

480p: 27 MHz
720p: 74.25 MHz
1080i: 74.25 MHz
1080p: 148.5 MHz

Input Coupling

DC

Impedance

75

Terminal/Type

1/BNC

OUTPUT SIGNALS

Signal Form

Composite,Y/C,Analog YPbPr

Encoded Systems

NTSC/PAL automatically selected
Note: PAL signal does not have 25 Hz
offset.

Level

1V p-p ± 50 mV

Sync Level

NTSC: 286 mV
PAL:

300 mV

Phase Error

± 8°

Connectors

2/BNC
1 Y/C (4-pin)

ANALOG GBR ACTIVE OUTPUTS

Level

Follows input level ± 5%

Frequency Response

30 MHz approx.

Impedance

75

Terminals

3 BNC

YPbPr OUTPUTS
(NTSC, PAL, 480i, 480p)

Sync Level

NTSC: 286 mV
PAL, OTHERS: 300 mV ± 15 mV

Video Levels

Y

NTSC: 714 mV p-p ± 36 mV

Y

PAL:

700 mV p-p ± 35 mV

Pb/Pr

NTSC: 714 mV p-p ± 36 mV

Pb/Pr

PAL:

700 mV p-p ± 35 mV

Impedance

75

Terminals

1 each (3)

BNC (YPbPr) OUTPUTS
(720p, 1080i, 1080p)

Sync Level

Tri Level ± 300 mV

Video Level

Y 700 mV
Pb/Pr 700 mV p-p

Impedance

75

Terminals

1 each (3 BNC)

ENVIRONMENTAL

Operating Temperature

0-40°C, 30-85% relative humidity

POWER REQUIREMENTS

100/115/230 V ac ± 10%
50/60 Hz

PHYSICAL

Size (W x H x D)

11

5

/

8

x 2

7

/

5

x 8

1

/

4

in.

295 x 72 x 210 mm

Weight

4.4 lbs., 2 kg

86

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