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參數(shù)資料
| 型號： | TA31273FN |
| 廠商： | Toshiba Corporation |
| 英文描述： | AM RF/IF Detector IC |
| 中文描述： | 上午射頻/中頻檢測器IC |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 198K |
| 代理商： | TA31273FN |
TA31273FN
2002-07-08
4
Functions
1. Waveform shaper circuit
(comparator)
The output data (pin 10) are inverted.
2. RSSI function
DC potential corresponding to the input level of IF IN (pin 6) is output to RSSI (pin 18). Output to RSSI
(pin 18) is converted to a voltage by the internal resistance. Thus, connecting external resistance R to pin
18 varies the gradient of the RSSI output as shown below. Note that due to the displacement of
temperature coefficients between external resistor R and the internal IC resistor, the temperature
characteristic of the RSSI output may change. Also, the maximum RSSI value should be V
CC
1 V.
Figure 1 Figure
2
3. V
CC
pin and GND pin
Use the same voltage supply source for V
CC1
(pin 2) and V
CC2
(pin 5) (or connect them). Also, use the same
voltage supply source for GND1 (pin 15) and GND2 (pin 9) (or connect them).
4. Local oscillator circuit
The local oscillator circuit is external-input-only. Input to pin 1 at a level from 95 to 105dB
μ
V.
By switching the Lo switch (LOBS), the frequency set by the external circuit can be used as-is without
using the x8 circuit.
Lo Switch (LOBS)
H
L
Local oscillation status
x8 circuit in operation
x8 circuit halted/through pass
5. RF amp current adjustment
The RF amp current dissipation can be regulated by varying resistor R as shown in the figure below. When
R
=
1 k
, the current dissipation is approximately 800
μ
A.
Figure
3
12
R
RF DEC
2
18
R
IF input level
After R is connected
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA31273FN(EL) | 功能描述:射頻無線雜項 200MHz-450MHz Receiver 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 |
| TA31273FNG(EL) | 功能描述:射頻無線雜項 200MHz-450MHz Receiver 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 |
| TA31275EVKIT-315 | 功能描述:KIT EVALUATION 315MHZ TA31275 RoHS:否 類別:RF/IF 和 RFID >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:用于 200/300 系列的歐盟開發(fā)套件 適用于相關(guān)產(chǎn)品:Zensys RF 模塊 所含物品:開發(fā)板，模塊，編程器，軟件，線纜，電源 其它名稱:703-1019Q3225667 |
| TA31275EVKIT-433 | 功能描述:KIT EVALUATION 433MHZ TA31275 RoHS:否 類別:RF/IF 和 RFID >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:用于 200/300 系列的歐盟開發(fā)套件 適用于相關(guān)產(chǎn)品:Zensys RF 模塊 所含物品:開發(fā)板，模塊，編程器，軟件，線纜，電源 其它名稱:703-1019Q3225667 |
| TA31275FN(EL) | 功能描述:射頻無線雜項 200MHz-450MHz Receiver 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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