WM8148 datasheet(39/43 Pages) WOLFSON

Numer części	WM8148

Szczegółowy opis	12-bit/12MSPS CCD/CIS Analogue Front End/Digitiser

PDF	43 Pages

Scroll/Zoom	100%

Producent	WOLFSON [Wolfson Microelectronics plc]

Strona internetowa	http://www.wolfsonmicro.com

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39 / 43 page

WM8148

Production Data

WOLFSON MICROELECTRONICS LTD

PD Rev 4.0 April 1999

MONOCHROME SINGLE OUTPUT

BUFFER

WM8148

Including

recommended

external

components

SYSTEM

ASIC

DATA

CONTROL I/F

CLOCKS

OUT

RINP

See sensor

datasheet for

details

SENSOR TIMING

Maximum Pixel Rate = 6.66Mpixels/second (Mode 2)

Figure 45 Block Diagram of Monochrome CCD Application

SETTING

DESCRIPTION

ADDRESS

HEX

BINARY

NOTE

Set-up register 1

000001

0010 0010

MODE: Mode 2: single-channel CDS

SELEN: selective power enable

Set-up register 2

000010

1001 1111

SENBL: green/blue PGAs

powered off

Set-up register 3

000011

0000 0010

CHAN: red channel selected

RESREF: reset sample half-way

between video samples

Set-up register 4

000101

1000 0000

INVOP: invert digital output

(White = 4095)

Coarse offsets

000110

0100 1011

PGAFS: ADC set up for negative

polarity video

RLCEXT, RLCV: internal VRLC

voltage, set to 3.7V

Table 10 Typical Control Register Settings for Figure 45

(CDS, Negative-Going CCD Video Signal, MCLK/VSMP = 6)

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