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參數(shù)資料
| 型號： | TA1370FG |
| 元件分類： | 信號分離 |
| 英文描述： | SYNC SEPARATOR IC, PDSO30 |
| 封裝： | 0.375 INCH, 1 MM PITCH, PLASTIC, SSOP-30 |
| 文件頁數(shù)： | 35/42頁 |
| 文件大?。?/td> | 902K |
| 代理商： | TA1370FG |
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TA1370FG
2005-09-05
40
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
TA1370FG
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA1370FG_05 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:SYNC Processor, Frequency Counter IC for TV Component Signals |
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| TA1372FNG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:VHF Band RF Modulator IC for VCRs and Set top boxes |
| TA1372FNG(EL,M) | 功能描述:射頻無線雜項(xiàng) VHF Modulator w/ PLL RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
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