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BA7357 PDF预览

BA7357

更新时间: 2024-02-17 07:54:56
品牌 Logo 应用领域
罗姆 - ROHM /
页数 文件大小 规格书
15页 178K
描述
VIF / SIF signal processor

BA7357 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:DIP包装说明:SDIP, SDIP22,.3
针数:22Reach Compliance Code:unknown
风险等级:5.83Is Samacsys:N
其他特性:ALSO REQUIRES 11.7V TO 12.3V POWER SUPPLY商用集成电路类型:AUDIO/VIDEO DEMODULATOR
JESD-30 代码:R-PDIP-T22长度:19.4 mm
端子数量:22最高工作温度:70 °C
最低工作温度:-15 °C封装主体材料:PLASTIC/EPOXY
封装代码:SDIP封装等效代码:SDIP22,.3
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:9 V
认证状态:Not Qualified座面最大高度:4.25 mm
子类别:Other Consumer ICs最大压摆率:110 mA
最大供电电压 (Vsup):9.5 V最小供电电压 (Vsup):8.5 V
表面贴装:NO技术:BIPOLAR
温度等级:COMMERCIAL端子形式:THROUGH-HOLE
端子节距:1.778 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.62 mm
Base Number Matches:1

BA7357 数据手册

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Video ICs  
VIF / SIF signal processor  
BA7357S  
The BA7357S is a multi-format (M, B / G, D / K, and I) VIF / SIF signal processor for television and VCR applications.  
It features a built-in sound-trap and band-pass filters, and employs a pulse-count audio detector that does not require  
adjustment. This IC reduces external component requirements, and allows space savings.  
Applications  
TVs and VCRs  
Features  
1) Separate-carrier PLL with full synchronous detec-  
tion. Excellent DG / DP, CS beat (920kHz) and  
cross color. In addition, by pulling down the SIF  
input (pin 9) it can be used as an intercarrier.  
2) The IF AGC time constant is dual-layered to allow  
faster speeds.  
The MODE switch can be used to switch the  
SOUND filter frequency band to match the transmis-  
sion format (M: 4.5, B / G: 5.5, I: 6.0, D / K:  
6.5MHz).  
6) The audio detector uses a pulse-counter detector  
that does not require adjustment, eliminating the  
need for a detector coil. Broad S-curve for multiplex  
broadcast compatibility.  
3) The variable-gain amplifier has excellent linearity to  
ensure low distortion, and AGC variance and tem-  
perature drift have been minimized.  
7) Use of pulse-counter detection and the built-in  
SOUND filter means fewer pins, external compo-  
nents and adjustment locations are required. The IC  
is available in a 22-pin SDIP package and will  
enable cost and space savings.  
4) Significant improvement in image quality through  
use of a filter that reduces CS beat.  
5) Built-in SOUND filter (4.5MHz SOUND Trap and  
4.5MHz SOUND BPF).  
Absolute maximum ratings (Ta = 25°C)  
Parameter  
Symbol  
VCCMax.  
PdMax.  
Topr  
Limits  
10.5  
Unit  
V
1
Applied voltage  
2
1250  
Power dissipation  
mW  
°C  
Operating temperature  
Storage temperature  
Pin 2 applied voltage  
– 15 ~ + 70  
Tstg  
– 40 ~ + 150  
10.5  
°C  
VP2Max.  
V
1 24resistor connected between VCC and Vreg.  
2 Reduced by 10mW for each increase in Ta 1°C over 25°C.  
Recommended operating conditions (Ta = 25°C)  
Parameter  
Symbol  
VCC9V  
Limits  
Unit  
V
1
Power supply voltage (9V)  
Power supply voltage (12V)  
8.8 ~ 9.2  
2
VCC12V  
11.7 ~ 12.3  
V
Guaranteed operating power  
supply voltage  
1
VCC  
8.5 ~ 9.5  
V
1 24resistor connected between VCC and Vreg.  
2 56resistor connected between VCC and Vreg.  
1

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