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參數(shù)資料
| 型號： | TA2022AFN |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO24 |
| 封裝： | SSOP-24 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大小： | 1665K |
| 代理商： | TA2022AFN |
TA2022AFN
2002-10-30
8
5. MPX IN
This IC can attenuate only FM stereo main signal level. Because
MPX input for main signal (pin(20)) is independent of that for
pilot signal (pin(21), this terminal is shared with AM input).
Internal circuit of MPX in terminal (pin(20)) is shown in fig.2. FM
stereo main signal level can be attenuated by connecting an
external resistor RX. Because FM stereo main signal level is
attenuated by internal resistor (14k and10k) and resistor
RX. And it is applied to an emitter of transistor Q.
6. AM tweets
It is necessary to connect the capacitor Ct (about 330pF)
between VCC terminal (pin(6)) and DET OUT (pin(22)), in case that
AM tweets occurs by pattern layout. (Fig.3)
This Ct can also functions as phase compensation of MPX stage.
7. AM AGC
It is necessary to connect a capacitor C (about 68pF) between
VCC terminal (pin(8)) and AM IF IN terminal (pin(6)), in case that
AGC circuit doesn't operate normally. Because second harmonic
of local oscillator is applied AM IF terminal (pin(6)) by pettern
layout.
In case that capacitor (C = 68pF) is connected, AM stop pulse
sensitivity is delayed about 1dB.
Output DC voltage of AGC terminal (pin(8)) is V8 = 0.1V (typ.,
AM mode, at no signal).
8. Stereo indicator / AM IF output (for AM stereo)
The terminal of pin(13) is built in stereo indicator function and
modulated AM IF signal output. In AM mode, RIF (3k or
less) should be connected between VCC and pin(13) , or pin(13)
should connected to VCC directly. (Fig.5) In case that
RIF >3k or pin (13) is opened, this IC doesn't operate
normally in AM mode. Because transistor Q2 is saturated.
Fig.2 Internal circuit of MPX
in terminal
Fig.3 Countermeasures for AM
tweets
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TA2022AFNG | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:1.5V AM/FM IF + MPX |
| TA2024 | 制造商:TRIPATH 制造商全稱:TRIPATH 功能描述:Stereo 10W (4?) Class-T? Digital Audio Amplifier using Digital Power Processing? Technology |
| TA202412 | 制造商:POWEREX 制造商全稱:Powerex Power Semiconductors 功能描述:Phase Control SCR (1200-1400 Amperes Avg 2400-4000 Volts) |
| TA202414 | 制造商:POWEREX 制造商全稱:Powerex Power Semiconductors 功能描述:Phase Control SCR (1200-1400 Amperes Avg 2400-4000 Volts) |
| TA20241603DH | 功能描述:SCR PHASE CTRL 2400V 1600A RoHS:是 類別:半導體模塊 >> SCR 系列:- 其它有關文件:SCR Module Selection Guide 標準包裝:10 系列:- 結構:串聯(lián) - SCR/二極管 SCR 數(shù)目，二極管:1 SCR，1 個二極管 電壓 - 斷路:1600V 電流 - 柵極觸發(fā)電流 (Igt)（最大）:150mA 電流 - 導通狀態(tài) (It (AV))（最大）:95A 電流 - 導通狀態(tài) (It (RMS))（最大）:210A 電流 - 非重復電涌，50、60Hz (Itsm):1785A，1870A 電流 - 維持(Ih):250mA 安裝類型:底座安裝 封裝/外殼:ADD-A-PAK（3 + 2） 包裝:散裝 其它名稱:*IRKL92/16AIRKL92/16IRKL92/16-ND |
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