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參數資料
| 型號： | 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 |
| 文件頁數： | 9/44頁 |
| 文件大小： | 289K |
| 代理商： | LA76818A |
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LA76818A
No.8047-17/44
Continued from preceding page.
Input signal
Symbol
Test point
Input signal
Test method
Bus conditions
With the input signal’s continuous wave = 2.2MHz,
measure the output signal’s continuous wave
amplitude. F01S32 [Vp-p]
Sharpness
variability
range
NTSC
Sharp32T1
Sharp32T1 = 20Log (F01S32/PEAKDC)
FILTER SYS: 0000
Sharpness: 100000
With the input signal’s continuous wave = 2.2MHz,
measure the output signal’s continuous wave
amplitude. F01S63 [Vp-p]
Max
Sharp63T1
Sharp63T1 = 20Log (F01S63/PEAKDC)
FILTER SYS:0000
Sharpness: 111111
With the input signal’s continuous wave = 2.2MHz,
measure the output signal’s continuous wave
amplitude. F01S0 [Vp-p]
Min
Sharp0T1
21
L-CW
Sharp0T1 = 20Log (F01S0/PEAKDC).
FILTER SYS: 0000
Sharpness: 000000
With the input signal’s continuous wave = 2.7MHz,
measure the output signal’s continuous wave
amplitude. F02S32 [Vp-p]
Sharpness
variable
range
PAL
Sharp32T2
Sharp32T3 = 20Log (F02S32/PEAKDC)
Filter Sys: 0010
Sharpness: 100000
With the input signal’s continuous wave = 3MHz,
measure the output signal’s continuous wave
amplitude. F02S63 [Vp-p]
Max
Sharp63T2
Sharp63T2 = 20Log (F02S63/PEAKDC)
Filter Sys: 0010
Sharpness: 111111
With the input signal’s continuous wave = 3MHz,
measure the output signal’s continuous wave
amplitude. F02S0 [Vp-p]
Min
Sharp0T2
21
L-CW
Sharp0T2 = 20Log (F02S0/PEAKDC)
Filter Sys: 0010
Sharpness: 000000
With the input signal’s continuous wave = 2.3MHz,
measure the output signal’s continuous wave
amplitude. F03S32 [Vp-p]
SECAM
Sharp32T3
Sharp32T3 = 20Log (F03S32/PEAKDC)
FILTER SYS: 1000
Sharpness: 100000
With the input signal’s continuous wave=2.3MHz,
measure the output signal’s continuous wave
amplitude. F03S63 [Vp-p]
Max
Sharp63T3
Sharp63T3 = 20Log (F03S63/PEAKDC)
FILTER SYS: 1000
Sharpness: 111111
With the input signal’s continuous wave = 2.3MHz,
measure the output signal’s continuous wave
amplitude. F01S0 [Vp-p]
Sharpnes
s variable
range
Min
Sharp0T3
21
L-CW
Sharp0T3 = 20Log (F03S0/PEAKDC)
FILTER SYS: 1000
Sharpness: 000000
With the input signal’s continuous wave = 3.0MHz,
measure the output signal’s continuous wave
amplitude. F04S32 [Vp-p]
6MHz
TRAP
Sharp32T4
Sharp32T4 = 20Log (F04S32/PEAKDC)
Filter Sys:0010
Sharpness: 100000
With the input signal’s continuous wave = 3.0MHz,
measure the output signal’s continuous wave
amplitude. F04S63 [Vp-p]
Max
Sharp63T4
Sharp63T2 = 20Log (F02S63/PEAKDC)
Filter Sys: 0010
Sharpness: 111111
With the input signal’s continuous wave = 3.0MHz,
measure the output signal’s continuous wave
amplitude. F04S0 [Vp-p]
Sharpness
variable
range
Min
Sharp0T4
21
L-CW
Sharp0T4 = 20Log (F04S0/PEAKDC)
Filter Sys: 0010
Sharpness: 000000
Continued on next page.
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