SenTech STC-A33A Manual de usuario descargar pdf (Pagina 31)

STC-A33A

Command No.

Command Descriptions

31H:

DGB[7…0]

[The digital gain] Initial data: DGB[7…0] = The value in the address 0EH, data range: 0 to 255.

This sets the digital gain.

The video output level is defined by the following formula:

Video output level = (Input video level –CLAMP[7…0] x (1 + (DGB[7…0] / 128) + CLAMP [7…0])

Notes:

1. GOFS[7…0]: The gain offset, which is the value in the address 32H.

2. CLAMP[7…0]: The clamp level, which is the value in the address 38H.

32H:

GOFS[7…0]

[The gain offset] Initial data: GOFS[7…0] = The value in the address 0FH, data range: 0 to 63

This sets the gain offset.

38H:

CLAMP[7…0]

[The clamp level] Initial data: CLAMP[7…0] = The value in the address 0FH, data range: 0 to 63.

This sets the gain offset.

60H:

SW COM[7…0]

[Control selection (Rear panel / communication)] Initial data: SWCOM[7…0] = 0

This sets the following control selections.

D[7…0]

D7 to D2:

No function

Always set “000000”

D1:

Control selection

0: DIP switch on the camera

1: Communication

D0:

Gain switch

0: Enable

(Gain mode is selectable by the switch on the rear panel)

1: Disable

(Fixed gain is adjustable by the communication)

61H:

DA_VREF[7…0]

[DAC reference voltage]

Initial data: DA_VREF[7…0] = the value of the address 0DH, data range: 0 to 255

This sets the reference voltage for the DAC.

62H:

FIX_GAIN[7…0]

[Fixed gain for the rear panel] Initial data: FIX_GAIN[7…0] = 16, data range: 0 to 255

This sets the gain for the fixed gain on the rear panel.

0:6.544 dB, 255: 40,204 dB

63H:

VR_MAX[15…8]

64H:

VR_MAX[7…0]

[Maximum setting of the pot on the rear panel]

Initial data: VR_MAX[15…0] = 422, data range: 0 to 65535

This sets the maximum gain for the pot on the rear panel for the manual gain.

70H:

GAIN[15…8]

71H:

GAIN[7…0]

[The current gain selection on the rear panel / the current pot position on the rear panel]

This obtains the status of the gain selection and manual gain on the rear panel.

D[15…0]

D15

D14

D13

D12

D11

D10

D15:

Gain mode

0:Manual gain

1: Fixed gain

D14 to D0:

Manual gain

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