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BA7230LS PDF预览

BA7230LS

更新时间: 2024-11-18 22:39:23
品牌 Logo 应用领域
罗姆 - ROHM 转换器色度信号转换器消费电路商用集成电路电视编码器
页数 文件大小 规格书
8页 140K
描述
NTSC color TV signal encoder

BA7230LS 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:ZIP包装说明:SZIP, ZIP24,.1
针数:24Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.79商用集成电路类型:COLOR SIGNAL ENCODER
输入类型:RGBJESD-30 代码:R-PZIP-T24
长度:21.8 mm功能数量:1
端子数量:24最高工作温度:70 °C
最低工作温度:-20 °C封装主体材料:PLASTIC/EPOXY
封装代码:SZIP封装等效代码:ZIP24,.1
封装形状:RECTANGULAR封装形式:IN-LINE, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED电源:5 V
认证状态:Not Qualified座面最大高度:8.4 mm
子类别:Color Signal Converters最大压摆率:54 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
表面贴装:NO技术:BIPOLAR
温度等级:COMMERCIAL端子形式:THROUGH-HOLE
端子节距:0.889 mm端子位置:ZIG-ZAG
处于峰值回流温度下的最长时间:NOT SPECIFIED视频标准:NTSC
宽度:2.8 mmBase Number Matches:1

BA7230LS 数据手册

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Multimedia ICs  
NTSC color TV signal encoder  
BA7230LS  
The BA7230LS comprises an RGB signal matrix circuit, balanced modulator circuit (rectangular 2-phase modula-  
tion), oscillator circuit (VCXO) for a 3.58MHz subcarrier synchronized with video input burst signals, luminosity and  
color difference signal mixing circuit, and a high speed switch for selecting composite signals of video input and RGB  
input. RGB signals, synch signals, BFP (burst flag pulses), PCP (pedestal clamp pulses) are input, and an NTSC  
composite signal is output.  
Applications  
Televisions (Teletext-capable), captain systems, video cameras, personal computers  
Features  
1) Allows superimposition of video images (VIDEO IN)  
and computer images (RGB IN).  
4) Using a half down pulse, the video signal can be  
reduced by 5dB to darken the background and  
make the superimposed RGB image easier to see.  
5) Carrier leak is suppressible to less than 70mVP-P  
(VOUT = 2VP-P) without adjustment.  
2) During superimposition, the subcarrier locked onto  
the video input burst signal RGB is modulated with  
the RGB signals by the APC circuit, preventing  
unnatural color disturbance due to switching.  
3) Both the RGB and video input signals are pedestal-  
clamped, maintaining a natural image even during  
fluctuation in luminosity.  
6) Can be adapted for analog RGB input.  
7) Compact 24-pin SZIP package minimizes external  
components.  
Block diagram  
BA7230LS  
VIDEO OUT  
Y IN  
1
3
5
SYNC IN  
B-Y IN  
2
4
6
8
+
+
R-Y IN  
VC  
BURST LEVEL  
ADJUSTMENT  
MOD  
MOD  
7
9
VB  
VA  
VCXO  
PD  
10 BFP IN  
12 PD  
APC PHASE  
ADJUSTMENT  
11  
13  
AR  
AB  
AG  
14  
16  
18  
20  
22  
24  
15  
17  
19  
21  
23  
Y OUT  
R-Y OUT  
VIDEO IN  
HDP IN  
VCC  
MATRIX  
B-Y OUT  
GND  
B - Y  
R - Y  
HD  
PCP IN  
YSP IN  
VCC  
1

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