전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

SSD1850 데이터시트(PDF) 48 Page - List of Unclassifed Manufacturers

부품명 SSD1850
상세설명  CMOS LCD Segment / Common Driver with Controller
PDF  56 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ETC [List of Unclassifed Manufacturers]
홈페이지  
Logo ETC - List of Unclassifed Manufacturers

SSD1850 데이터시트(HTML) 48 Page - List of Unclassifed Manufacturers

Back Button SSD1850 Datasheet HTML 44Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 45Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 46Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 47Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 48Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 49Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 50Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 51Page - List of Unclassifed Manufacturers SSD1850 Datasheet HTML 52Page - List of Unclassifed Manufacturers Next Button
Zoom Inzoom in Zoom Outzoom out
 48 / 56 page
background image
SSD1850/51 Series
Rev 1.2
01/2003
SOLOMON
44
OTP Programming Circuit and Sequence
OTP (One Time Programming) is a method to adjust the VL6. In order to eliminate the variations of LCD
module in term of contrast level, OTP can be used to achieve the best contrast of every LCD modules.
OTP setting and programming should include two major steps of (1) Find the OTP offset and (2) OTP
programming as following,
Step 1. Find the OTP offset
(1) Hardware Reset (sending an active low reset pulse to RES pin)
(2) Send original initialization routines
(3) Set and display any test patterns
(4) Adjust the contrast value (0x81, 0x00~0x3F) until there is the best visual contrast
(5) OTP setting steps = Contrast value of the best visual contrast - Contrast value of original
initialization
Example 1:
Contrast value of original initialization = 0x20
Contrast value of the best visual contrast = 0x24
OTP setting steps = 0x24 - 0x20 = +4
OTP setting commands should be (0x82, 0xF4)
Example 2:
Contrast value of original initialization = 0x20
Contrast value of the best visual contrast = 0x1B
OTP setting steps = 0x1B - 0x20 = -5
OTP setting commands should be (0x82, 0xFB)
Step 2. OTP programming
(6) Hardware Reset (sending an active low reset pulse to RES pin)
(7) Enable Oscillator (0xAB)
(8) Connect an external VCC (see diagram below)
(9) Send OTP setting commands that we find in step 1 (0x82, 0xF0~0xFF)
(10)Send OTP programming command (0x83)
(11)Wait at least 2 seconds
(12)Hardware Reset
Verify the result by repeating step 1. (2) – (3)
R
+
SSD1850/51
VCC
RES
16-18V
Note: R = 1K ~ 10k ohm
C = 1u ~ 4.7u F
OTP Programming Circuit
C
(8)
(1) & (6) & (12)
GND
GND



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com