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參數(shù)資料
| 型號： | LA7357 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PAL/SECAM Discrimination Circuit for VHS VCRs(用于VHS VCR的PAL/SECAM的鑒別電路) |
| 中文描述： | PAL / SECAM制式歧視錄影帶錄像機電路（用于錄影機的PAL / SECAM制式的鑒別電路） |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 105K |
| 代理商： | LA7357 |
Pin No.
Pin
Pin Functions
Equivalent circuit
No. 5654-4/6
LA7357
Pin Functions
1
CHROMA-IN
Chrominance signal input. This pin can handle burst (or unmodulated
carrier for SECAM input) signal amplitudes of between 50 and 800 mVp-p.
2
HPF.MONI
High-pass filter output monitor
To avoid interference between pin 1 and pin 3, this pin should be
connected to V
CC
during normal operation.
3
FILTER
Phase comparator output
This signal is smoothed with an external capacitor.
The smoothed level will be:
2.0 V or lower for PAL
3.5 V or higher for SECAM or MESECAM.
4
GND
5
SYNC+BGP
BGP + SYNC input
The input level is a 1.0- to 2.0-V rising pulse ( ) during the SYNC period,
and a 3.0- to 4.5-V rising pulse ( ) during the BGP period. Note that since
a combined BGP and C.SYNC pulse ( ) is output from the Y/C IC when
the LA7357 is used in combination with a Sanyo single-chip Y/C IC (any
one of the LA7430, LA7435, or LA71520) no external component will be
required on pin 5.
6
DET-ADJ
7
V
CC
Discrimination sensitivity adjustment pin
The discrimination is shifted towards PAL as the pin voltage is increased,
and towards SECAM as the pin voltage is lowered.
This pin is normally left open.
Continued on next page.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA7358M | Monolithic Linear IC For VCR SECAM Chroma Signal Processor |
| LA7371A | RECORDING AND PLAYBACK AMPLIFIER FOR VHS VIDEO RECORDERS |
| LA7375 | Recording and Playback Amplifier for VHS Video Recorders |
| LA7383 | NTSC Video Signal Processing LSI for VCRs |
| LA7386 | NTSC Video Signal Processing LSI for VCRs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA7358M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC For VCR SECAM Chroma Signal Processor |
| LA7371 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA7371A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:RECORDING AND PLAYBACK AMPLIFIER FOR VHS VIDEO RECORDERS |
| LA7375 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Recording and Playback Amplifier for VHS Video Recorders |
| LA7383 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:NTSC Video Signal Processing LSI for VCRs |
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