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參數(shù)資料
| 型號： | LA76810A |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Monolithic Linear IC For PAL/NTSC Color Television Sets VIF/SIF/Y/Deflection 1chip IC |
| 中文描述： | 單片線性集成電路為PAL / NTSC制式彩電資料表格/應(yīng)力強(qiáng)度因子/年/撓度1chip集成電路 |
| 文件頁數(shù)： | 11/40頁 |
| 文件大?。?/td> | 504K |
| 代理商： | LA76810A |
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LA76810A
NoA0252-11/40
Audio Block Input Signals and Test Conditions
Unless otherwise specified, the following conditions apply when each measurement is made.
1. Bus control condition:
AUDIO.MUTE = "0", AUDIO.SW = "1", VOL.FIL = "0", SIF.SYS = "01", IF.AGC.SW = "1"
2. Input 5.5MHz, 90dB
μ
and CW at pin 54.
3. Enter an input signal from pin 51.
Input signal
Symbol
Test point
Input signal
Test method
Bus conditions
Maximum gain
AGMAX
1kHz, CW
500mVrms
Measure the 1kHz component (V1: mVrms) at
the pin 1 and calculate as follows:
AGMAX = 20*LOG (V1/500) [dB]
VOLUME = "1111111"
Variable range
ARANGE
1kHz, CW
500mVrms
Measure the 1kHz component (V2: mVrms) at
the pin 1 and calculate as follows:
ARANGE = 20*LOG (V1/V2) [dB]
VOLUME = "0000000"
Frequency
characteristics
AF
20kHz, CW
500mVrms
Measure the 20kHz component (V3: mVrms) at
the pin 1 and calculate as follows:
AF = 20*LOG (V3/V1) [dB]
VOLUME = "1111111"
Mute
AMUTE
20kHz, CW
500mVrms
Measure the 20kHz component (V4: mVrms) at
the pin 1 and calculate as follows:
AMUTE = 20*LOG (V3/V4) [dB]
VOLUME = "1111111"
AUDIO.MUTE = ”1”
Distortion
ATHD
1kHz, CW
500mVrms
Measure the distortion of the 1kHz component at
the pin 1.
VOLUME = "1111111"
S/N
ASN
No signal
Measure the noise level (DIN AUDIO, V5:
mVrms) at the pin 1 and calculate as follows:
ASN = 20*LOG (V1/V5) [dB]
VOLUME = "1111111"
Crosstalk
ACT
20kHz, CW
500mVrms
Measure the 20kHz component (V6: mVrms) at
the pin 1 and calculate as follows:
ACT = 20*LOG (V3/V6) [dB]
VOLUME = "1111111"
AUDIO.SW = "0"
1
1
1
1
1
1
1
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