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參數(shù)資料
| 型號： | LA75503V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Adjustment Free VIF/SIF Signal Processing IC for PAL TV/VCR |
| 中文描述： | 調整免費資料表格/ SIF信號處理集成電路PAL電視/錄像機 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大小： | 525K |
| 代理商： | LA75503V |
No. 6804-9/15
LA75503V
Continued from preceding page.
Pin No.
Pin
Pin Function
Internal Circuit
Pin 16 is the AFT output pin.
Use external resistors of 47 k
and a filter
capacitance 0.1 μF.
The AFT circuit generates the AFT voltage by
comparing the signal obtained by dividing the
4-MHz reference frequency with the signal obtained
by dividing VCO.
Since it uses a digital phase comparator, a dead
zone exists in the AFT center.
16
AFT OUT
Pin 17 is the RF AGC output.
RF AGC max is determined by R1 and R2.
RF AGC min is determined by R3 and R4.
Capacitor C1 prevents oscillation and capacitor C2
is the RF AGC filter.
Normally 30 k
is used for R1, but if the tuner's F/E
transistor is GaAS, the gate's impedance is lower,
so use approx. 10 k
.
17
RF AGC OUT
Comparator
Pin 18 is the IF AGC filter pin.
Normally, 0.01 μF to 0.02 μF polyester film
capacitor is used.
Determine the impedance based on H-SAG and
AGC speed.
18
IF AGC FILTER
Continued on next page.
waveform
Not connected
19
NC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LA75503V_07 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For PAL TV/VCR Adjustment Free VIF/SIF Signal Processing IC |
| LA75505M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA75520K | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs |
| LA75520KVA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs |
| LA75521VA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs |
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