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參數(shù)資料
| 型號： | TDK5100F |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 434 MHz ASK/FSK Transmitter in 10-pin Package |
| 中文描述： | 434兆赫詢價(jià)/ FSK發(fā)射器采用10引腳封裝 |
| 文件頁數(shù)： | 13/35頁 |
| 文件大?。?/td> | 503K |
| 代理商： | TDK5100F |
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Functional Description
2 - 7
TDK 5100 F
Preliminary
Wireless Components
Target Specification, July 2003
2.4.3 Power Amplifier
The VCO frequency is divided by 2 and fed to the Power Amplifier.
The Power Amplifier can be switched on and off
by the signal at ASKDTA (pin 6).
The Power Amplifier has an Open Collector output at PAOUT (pin 9) and
requires an external pull-up coil to provide bias. The coil is part of the tuning and
matching LC circuitry to get best performance with the external loop antenna.
To achieve the best power amplifier efficiency, the high frequency voltage swing
at PAOUT (pin 9) should be twice the supply voltage.
The power amplifier has its own ground pin PAGND (pin 8) in order to reduce
the amount of coupling to the other circuits.
2.4.4 Power Modes
The IC provides three power modes, the POWER DOWN MODE, the PLL
ENABLE MODE and the TRANSMIT MODE.
2.4.4.1 Power Down Mode
In the POWER DOWN MODE the complete chip is switched off.
The current consumption is typically 0.3 nA at 3 V 25
°
C.
This current doubles every 8
°
C. The values for higher temperatures are
typically 14 nA at 85
°
C and typically 600 nA at 125
°
C.
2.4.4.2 PLL Enable Mode
In the PLL ENABLE MODE the PLL is switched on but the power amplifier is
turned off to avoid undesired power radiation during the time the PLL needs to
settle. The turn on time of the PLL is determined mainly by the turn on time of
the crystal oscillator and is less than 1 msec when the specified crystal is used.
The current consumption is typically 3.5 mA.
Table 2-4
ASKDTA (pin 6)
Low
1)
Open
2)
, High
3)
Power Amplifier
OFF
ON
1) Low:
2) Open:
3) High:
Voltage at pin < 0.5 V
Pin open
Voltage at pin > 1.5 V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDK5100F_08 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:434 MHz ASK/FSK Transmitter in 10-pin Package |
| TDK5100FDEMOBOARD | 制造商:Infineon Technologies AG 功能描述: |
| TDK5100FHTMA1 | 制造商:Infineon Technologies AG 功能描述:RF Transmitter ASK/FSK 2.5V/3.3V 10-Pin TSSOP T/R 制造商:Infineon Technologies AG 功能描述:CONTROL - Tape and Reel |
| TDK5100FHTMA3 | 制造商:Infineon Technologies AG 功能描述:TRANSMITTER ASK/FSK SGL TSSOP10 |
| TDK5100FT | 制造商:Infineon Technologies AG 功能描述:ASK/FSK TRANSMITTER 434 MHZ, 1 |
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