參數(shù)資料
型號(hào): LA76818A
元件分類: 接收器
英文描述: AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54
封裝: 0.600 INCH, DIP-54
文件頁(yè)數(shù): 27/44頁(yè)
文件大?。?/td> 289K
代理商: LA76818A
LA76818A
No.8047-33/44
Continued from preceding page.
Input signal
Symbol
Test point
Input signal
Test method
Bus conditions
@16
Vlin16
Monitor the pin 23 vertical ramp output and
measure the voltage at line 24, line 167 and 310.
Assign the respective measured values to Va, Vb
and Vc.
Vlin16 = (Vb-Va)/(Vc-Vb)
@0
Vlin0
Monitor the pin 23 vertical ramp output and
measure the voltage at line 24, line 167 and 310.
Assign the respective measured values to Va, Vb
and Vc.
Vlin0 = (Vb-Va)/(Vc-Vb)
VLIN: 00000
Vertical
linearity
@31
Vlin31
23
Y IN:
Horizontal/
vertical sync
signal
PAL
Monitor the pin 23 vertical ramp output and
measure the voltage at line 24, line 167 and 310.
Assign the respective measured values to Va, Vb
and Vc.
Vlin31 = (Vb-Va)/(Vc-Vb)
VLIN: 11111
Continued on next page.
Line 310
Line 24
Line 167
Vertical ramp output
Line 310
Line 24
Line 167
Vertical ramp output
Line 310
Line 24
Line 167
Vertical ramp output
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