Maxtor CAM1830-N Application Note
Application Note:
Interfacing non-standard cameras to Matrox Pulsar
Loral Fairchild CAM1830 12/02/96
Camera
Interface
Overview
Camera
Interface
Details
• 2048 x 1 x 8-bit
• analog video output
• external sync required
• external exposure control
• 2 modes of operation: fixed line scan rate, variable line scan rate
Mode 1: Fixed line scan rate
Video
Loral
C.1830
• 2048 x 1 x 8-bit
• analog video output
• DCF configured for 480 lines per virtual frame
• line scan rate is fixed and is determined by frequency of hsync signal
• external exposure control, where exposure time is determined by hsync pulse width
• continuous video
• Matrox Pulsar sending TTL hsync (line/int clock) and TTL pixel or data rate clock
Line/Int clock
Data rate clock
Matrox Pulsar
(with PLS-TTL-CABLE)
(14.318 Mhz) signals to camera; the hsync signal initiates exposure, controls exposure
time and initiates line readout
• DCF used: LORAL_L.DCF
Mode 2: Variable line scan rate
Video
Loral
C.1830
• 2048 x 1 x 8-bit
• analog video output
• DCF configured for 480 lines per virtual frame
• line scan rate is variable and is controlled by external trigger signal
• external exposure control, where exposure time is determined by exposure pulse width
• Matrox Pulsar receiving TTL external trigger
• Matrox Pulsar sending TTL exposure (line/int clock) and TTL pixel or data rate clock
Line/Int clock
Data rate clock
TTL external trigger
Matrox Pulsar
(with PLS-TTL-CABLE)
(14.318 Mhz) signals to camera; the exposure signal initiates exposure, controls exposure
time and initiates line readout
• DCF used: LORAL_LS.DCF
• in addition to the DCF, a new version of the PSG FPGA (version 3.01) that supports
variable rate line scan mode is required and is available with the MIL-32 driver for Pulsar
3.1 and the MIL-16 driver for Pulsar 2.22
Application Note:
Interfacing non-standard cameras to Matrox Pulsar
Loral Fairchild CAM1830 12/02/96
Cabling
Requirements
Mode 1: Fixed line scan rate
• PLS-TTL-CABLE required
• the connections between the 20-pin D connector of the camera and the Video Input
connector of the Pulsar are as follows:
Loral Fairchild CAM1830 Matrox Pulsar
(20-pin D connector) (Video Input connector)
Pin name Pin no. Pin name Pin no.
VOUT (coaxial line) A → Analog Video Input1 A1
• the connections between the 20-pin D connector of the camera and the DB-37 connector of
the PLS-TTL-CABLE are as follows:
Loral Fairchild CAM1830 PLS-TTL-CABLE
(20-pin D connector) (DB-37 connector)
Pin name Pin no. Pin name Pin no.
CLK.DR+ 1 ← CLKOUT+ 24
CLK.DR- 11 ← CLKOUT- 5
CLK.LINE+ 2 ← HSYNC+ 16
CLK.INT+ 3 ← HSYNC+ 16
CLK.LINE- 12 ← HSYNC- 34
CLK.INT- 13 ← HSYNC- 34
NOTE: pins 14 (DGND), 15 (CGND) and 16 (AGND) on the 20-pin D connector of the
camera must be tied together
Mode 2: Variable line scan rate
• PLS-TTL-CABLE required
• the connections between the 20-pin D connector of the camera and the Video Input
connector of the Pulsar are as in Mode 1: fixed line scan rate
• the connections between the 20-pin D connector of the camera and the DB-37 connector of
the PLS-TTL-CABLE are as follows:
Loral Fairchild CAM1830 PLS-TTL-CABLE
(20-pin D connector) (DB-37 connector)
Pin name Pin no. Pin name Pin no.
CLK.DR+ 1 ← CLKOUT+ 24
CLK.DR- 11 ← CLKOUT- 5
CLK.LINE+ 2 ← EXPOSURE1+ 21
CLK.INT+ 3 ← EXPOSURE1+ 21
CLK.LINE- 12 ← EXPOSURE1- 2
CLK.INT- 13 ← EXPOSURE1- 2
• the TTL external trigger source should be connected to the TTL Trigger Input (pin1) of
the Video Input connector on the Pulsar
NOTE: pins 14 (DGND), 15 (CGND) and 16 (AGND) on the 20-pin D connector of the
camera must be tied together
PUL-CID-007 2
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