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參數(shù)資料
| 型號： | TA1318N |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | PLASTIC, SDIP-24 |
| 文件頁數(shù)： | 33/41頁 |
| 文件大?。?/td> | 629K |
| 代理商： | TA1318N |
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TA1318N
2003-02-19
39
Application Circuit 2 (How to measure H/V frequency)
To measure H/V frequency of signal 2 (fH2: unknown) correctly, use two separated input terminals as the
following figure. One is for frequency measuring (SYNC2-in) and the other is for the AFC (SYNC1-IN). And
measure H/V frequency of signal 2 (fH2: unknown) on condition that AFC is stable (AFC locks in signal 1 (fH1:
known).) or that AFC is free-run when SYNC1-IN is no-signal.
This IC’s H/V frequency counting is done by internal pulse (A) which is made in AFC circuit. So, if AFC circuit
doesn’t lock in the regular frequency, the frequency of pulse (A) will not be correct and the H/V frequency data will
not be showed correct data.
Decision algorithm of H/V frequency detection (detection range, detection times and so on) should be determined
under consideration the factors such as signal strength, existence of ghost signal, H-AFC stability, I2C BUS data
transmission and so on via prototype TV set evaluation.
H/V FREQ
COUNTER
AFC
Internal pulse (A)
Signal 1
Signal 2
BUS READ
Signal 1
(fH1: known)
Signal 2
(fH2: unknown)
SYNC1-IN
for H-AFC
SYNC2-IN
for
H/V freq. counter
TA1318N
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA1318NG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:SYNC Processor, Frequency Counter IC for TV Component Signals |
| TA132 | 制造商:pico Technology 功能描述:Probe; Oscilloscope; 150 MHz; 1.2 m; 1:1/10:1 |
| TA1322FN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:DOWB-CONVERTER IC WITH PLL FOR SATELLITE TUNER |
| TA1326FNG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:UHF BAND RF MODULATOR IC FOR VTRS |
| TA133 | 制造商:pico Technology 功能描述:Probe; Oscilloscope; 500 MHz; 1.2 m; x10; Used w/ PicoScope 6000 制造商:pico Technology 功能描述:PASSIVE PROBE, 500MHZ, 10X ATTENUATION; Test Probe Type:Oscilloscope; For Use With:PicoScope 6404 Oscilloscopes; Bandwidth:500MHz; Features:10x Attenuation ;RoHS Compliant: NA |
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