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參數資料
| 型號： | LA7615 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 封裝： | SDIP-64 |
| 文件頁數： | 16/39頁 |
| 文件大小： | 206K |
| 代理商： | LA7615 |
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Chrominance Block - Input Signals and Test Conditions
For each of the test items, set up the following conditions unless otherwise specified.
1. VIF and SIF blocks: No signal
2. Deflection block: Input a horizontal/vertical composite sync signal and verify that the deflection block is locked on
the synchronizing signal. (See the section on input signals and test conditions for the deflection block.)
3. Bus control conditions: All conditions set to their initial values, unless otherwise specified.
4. Connect a crystal oscillator circuit to pin 16. Adjust the impedance (Z) of the series capacitance and resistance as
shown below.
Z = 0 deg
@ 3.579545 MHz ±10 Hz
–40 ±1 deg
@3.579345 MHz
5. Luminance (Y) input: No signal
6. Chrominance (C) input: Input the signal to the C1IN pin (pin 51).
7. The method for calculating the demodulation angle is shown below.
B-Y axis angle = tan – 1 (B(0)/B(270)) + 270°
R-Y axis angle = tan – 1 (R(180)/R(90)) + 90°
G-Y axis angle = tan – 1 (G(270)/G(180)) + 180°
8. The method for calculating the AF angle is shown below.
BR The B-Y/R-Y demodulation output ratio
θ ANGBR: the B-Y/R-Y demodulation angle
R – Y/B – Y
× BR – Cos
θ
AFXXX = tan – 1
———————————
Sin
θ
No. 5841-23/39
LA7615
180
°
270
°
0
°
90
°
R (90)
G (270)
G (180)
R (180)
B (270)
B (0)
A10067
B-Y axis
R-Y axis
G-Y axis
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LA7620 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV Video, Chroma, Deflection Circuit |
| LA7621 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA7625 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7629 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV/Video,Chroma,Deflection Circuit |
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