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參數(shù)資料
| 型號(hào)： | TDA3825 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 接收器 |
| 英文描述： | 50 AMP LATCHING POWER RELAY |
| 中文描述： | FM, AUDIO DEMODULATOR, PDIP14 |
| 文件頁(yè)數(shù)： | 9/18頁(yè) |
| 文件大小： | 166K |
| 代理商： | TDA3825 |
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January 1993
9
Philips Semiconductors
Objective specification
Quasi split-sound circuit and AM
demodulator
TDA3845; TDA3845T
8.
For all S/N measurements the used vision IF modulator must conform to the following:
Incidental phase modulation for black-to-white jump should be less than 0.5 degrees. Intercarrier performance,
measured with the television demodulator AMF2 (intercarrier mode weighted S/N ratio) better than 60 dB for 6 kHz
sinewave black-to-white video modulation. Weighted S/N ratio of the demodulated intercarrier signals in accordance
with CCIR 468-3, measured with de-emphasis of 50
μ
s.
The indicated (S + W)/W ratio X/Y concerns the sound channels 1 and 2 that means demodulated intercarrier signals
of 5.5 and 5.74 MHz respectively.
Sound carrier frequency in the range of 30 to 40 MHz modulated with f = 1 kHz and a modulation depth of 80%.
IF input signal (sound carrier) V
1-16
= 10 mV (RMS).
10. The capacitor at pin 4 can be omitted, however, the (S + W)/W figure for the AM sound (standard L) will be up to
8 dB worse in the IF voltage range 1 mV to 100 mV.
11. When the supply at V
P2
= 12 V the performance will be comparable with the performance when V
P1
= 5 to 8 V.
The power supply pin that is not in use should be disconnected.
12. The maximum value given as minimum 120 kHz and typical 700 kHz.
13. Voltage ripple
<
200 mV (p-p) at 70 Hz.
9.
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PDF描述 |
|---|---|
| TDA3845 | 50 AMP LATCHING POWER RELAY |
| TDA3845T | 50 AMP LATCHING POWER RELAY |
| TDA4470-MFLG3 | Multistandard Video-IF and Quasi Parallel Sound Processing |
| TDA4470 | Multistandard Video-IF and Quasi Parallel Sound Processing |
| TDA4470-M | Multistandard Video-IF and Quasi Parallel Sound Processing |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA3827 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:TV-sound demodulator circuit with SCART switches and AF control |
| TDA3833 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:BTSC-stereo/SAP/DBX decoder and DBX expander |
| TDA3833T | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:BTSC-stereo/SAP/DBX decoder and DBX expander |
| TDA3843 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Sound-IF circuit for TV AM-sound standard L and L’ |
| TDA3845 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Quasi split-sound circuit and AM demodulator |
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