JAI TM-6710 operation manual Command G

Page 19

Operation

This selects a mode for external shutter speed control. Hexadecimal shutter number (3 digit) follows “SX” command (e.g., “080” = 128H, shutter speed = 4.1msec). It moves the shutter discharge pulse at every 1H (32 µsec.) period from 254 (no shutter) to 1H (max. speed).

Command G

Function: A/D pre-amp gain control.

The “GM” command controls the gains of the A channel and the B channel. The “GA” and “GB” commands fine tune the gain of the A and B channels respectively, to achieve balance. The ratio is about 5:1.

Examples:

R4

A(5:1)

R3

M

R5

B (5:1)

R6

Ch.A

R1

R2

Ch.B

“:”, “GM”, “D2”, CR D2 = gain 210

3AH, 47H, 46H, 46H, 0DH

“:”, “GA”, “12”, CR

3AH, 47H, 31H, 32H, 0DH Gain control value 18

GAIN (dB)

Voltage
3.5	4
				30
3.1	3
				20
2.5	2
1.9	1			10
	0		130 160 190 225	Counts
		90		1.0	2.0	3.0	4.0	VOLTAGE (V)

Command V

Function: A/D reference voltage control. In the default gain setting there is no shutter. The A/D reference voltage bottom is preset to 0.45V. The controllable range of the reference voltage (Vref1,

TM-6710/6710CL High-Speed Progressive Scanning CCD Camera