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부품번호 | BA7078AS 기능 |
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기능 | Synchronization signal processor for high definition displays | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
Multimedia ICs
BA7078AF/AS
Synchronization signal processor for
high definition displays
BA7078AF/AS
The BA7078AF is a synchronization signal processing LSI chip designed for multiscan high-definition displays. It
generates a synchronization signal and clamp pulse for three types of input signals: separate synchronization, composite
synchronization, and synchronization on video.
!Application
CRT displays
!Features
1) Operates on a single 5V power supply, with low power consumption.
2) Synchronization signal existence and polarity detec-tion output.
3) Adjustable clamp pulse width, allowing for the selec-tion of front or back editing.
4) Vertical synchronization separation is based on hori-zontal frequency tracking, for separation starting at 1H.
5) Minimal attached components.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power dissipation
VCC 7.0
∗1 450(BA7078AF)
Pd ∗2 600(BA7078AS)
Operating temperature
Topr
−25 to +75
Storage temperature
Tstg
−55 to +125
∗1 Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 6.0mW for each increase in Ta of 1°C over 25°C.
Unit
V
mW
°C
°C
!Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max.
Power supply voltage VCC 4.5 5.0 5.5
Unit
V
1/12
Multimedia ICs
!Input / output circuits
HSCTL
VCC
51kΩ
1pin
30kΩ
BA7078AF/AS
VSEPA
VCC
60kΩ
1kΩ
4pin
C / HSYNC IN
VCC
670Ω
200Ω
2pin
10µA
VSYNC IN
5pin
VIDEO IN
VCC
VCC
2kΩ
CVPOL
VCC
200Ω
3pin
200Ω
6pin
CVEXI
7pin
CPWID
VCC
VCC
10pin
CPSEL
VCC
50kΩ
1kΩ
8pin
50kΩ
4/12
4페이지 Multimedia ICs
!Relationship between INPUT to OUTPUT
INPUT
Composite / HSYNC
−
VSYNC
−
VIDEO
−
−
−−
−
−
Explanation of symbol
: Signal Input − : No Signal
−
−
−
−
BA7078AF/AS
OUTPUT
HDRV
VDRV
VIDEO
VIDEO
CS CS
VIDEO
VS
CS VS
−−
CS CS
− VS
CS VS
CLAMP
VIDEO
CS
VIDEO
CS
−
CS
−
CS
!Input signal range
Parameter
Polarity
Amplitude (Sync) : Vs
(Video) : Vv
Vert. sync frequency range : fV
Vert. sync pulse width range : pwV
Hor. sync frequency range : fH
Hor. sync pulse width range : pwH
∗ 1H = 1 / fH
Vert. separate sync Hor. separate sync
Posi. / Neg.
Posi. / Neg.
1.0 to 5.0VP-P
1.0 to 5.0VP-P
Composite sync
Posi. / Neg.
1.0 to 5.0VP-P
40 to 200Hz
8.0µs to Duty35%
−
−
−
−
15k to 200kHz
94ns to Duty35%
40 to 200Hz
∗ 1HMin. to 400µs
15k to 200kHz
94ns to Duty30%
Sync on Video
Neg.
0.2 to 0.6VP-P
0 to 2.1VP-P
40 to 200Hz
∗ 1HMin.
15k to 200kHz
Duty30% Max.
!Input signal waveform
Vert. / Hor.separate sync
T=1/f
VS
pw Duty=pw/T(%)
Composite sync
TH=1/fH
pwH
Duty=pwH/TH(%)
pwV
(ex.pwV=1H)
VS
Sync on Video
pwH
TH=1/fH
Duty=pwH/TH(%)
pwV
(ex.pwV=1H)
VV
VS
7/12
7페이지 | |||
구 성 | 총 13 페이지수 | ||
다운로드 | [ BA7078AS.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
BA7078AF | Synchronization signal processor for high definition displays | ROHM Semiconductor |
BA7078AS | Synchronization signal processor for high definition displays | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |