參數(shù)資料
型號(hào)： LA7615
廠商： Sanyo Electric Co.,Ltd.
英文描述： Single-Chip NTSC Color TV IC
中文描述： 單片集成電路NTSC制式彩電
文件頁(yè)數(shù)： 23/39頁(yè)
文件大小： 206K
代理商： LA7615
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
———————————
Sin
θ
AFXXX = tan – 1
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
相關(guān)PDF資料
PDF描述
LA7620 Color TV Video, Chroma, Deflection Circuit
LA7625 Video, Chroma and Deflection Circuit for Color Television Sets
LA7629 Color TV/Video,Chroma,Deflection Circuit
LA7640N Chroma Circuit for SECAM-system Color Television Sets
LA7642N SECAM Format Color TV Chrominance Circuit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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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