CS7622 データシートの表示（PDF） - Cirrus Logic

部品番号

コンポーネント説明

メーカー

CS7622

CCD Imager Analog Processor

Cirrus Logic 

CS7622

Fixed Gain

Default = 00h; Read/Write (address 14h)

Bit Number

Bit Name

Default

7

6

RESERVED

0

0

5

4

3

fixed_gain2 fixed_gain1 fixed_gain0

0

0

0

2

1

0

RESERVED

0

0

0

Bit

7:6, 2:0

5:3

Mnemonic

-

fixed_gain2-0

Function

Reserved

Fixed Gain: This is used to turn off the DRX functionality and apply a fixed gain

to the input before reaching the ADC. A setting of 000 is used for normal oper-

ation this will yield the largest dynamic range by switching the front end gain rel-

ative to the amplitude of the input signal. The settings 001, 010, 011, and 100

are for fixed gains of 1x, 2x, 4x, and 8x respectively. Figure 18 shows the trans-

fer function of the output of the ADC for a given input with the various fixed gain

settings.

DS322PP1

25

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