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參數(shù)資料
| 型號： | PT4316-S |
| 廠商： | Princeton Technology Corporation |
| 英文描述： | Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| 中文描述： | 低功耗433分之315兆赫元件Ook / ASK超外差接收器與基于SAW振蕩器 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大?。?/td> | 501K |
| 代理商： | PT4316-S |
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Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
For down-converting the RF signal to the IF frequency, a suitable SAW oscillation frequency must be
chosen. For the PT4316, the -3dB bandwidth of the IF chain is located from 250KHz to 3.1MHz and its
optimum value is around 1.2MHz. The following equation may be utilized to calculate an appropriate
SAW oscillator frequency.
SAW Oscillator (Freq.) = TX (Freq.) +/
–
(250KHz ~ 3.1MHz)
In addition to a SAW resonator, the resonant circuit may also be achieved by an “L-C tank”. The
recommended circuit for an “L-C tank” is as the following figure.
PT4316 V1.6
- 8 -
August, 2007
Low Power 315/433 MHz OOK/ASK Superheterodyne
Receiver with SAW-based Oscillator
PT4316
16
OSCIN
OSCOUT
15
C14
C15
LIMITER/RSSI
The limiter is an AC coupled multi-stage amplifier with a cumulative gain of approximately 70dB that
has a band-pass characteristic centered around 2MHz. The
-
3dB bandwidth of the limiter is around
5MHz (from 250KHz to 5.2MHz). The limiter circuit also produces an RSSI voltage that is directly
proportional to the input signal level with a slope of approximately 14mV/dB. This signal is used to
demodulate ASK-modulated receive signals in the subsequent baseband circuitry.
Frequency
(MHz)
315
433.92
C14
(pF)
100
100
C15
(pF)
10
5.6
Trimmer L3
(H)
2.5 T
1.5 T
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT4316-SL | Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4316-X | Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4316-XL | Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4485 | 30V Single N-Channel HEXFET Power MOSFET in a TO-220AB package; A IRL3803 with Standard Packaging |
| PT4486 | 30V Single N-Channel HEXFET Power MOSFET in a TO-220AB package; Similar to the IRL3803 in lead free packaging |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4316-SL | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4316-X | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4316-XL | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| PT4317 | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:PT4317 Low Power 315/433MHz OOK/ASK Superheterodyne Receiver with SAW-Based Oscillator |
| PT431F | 制造商:Sharp Microelectronics Corporation 功能描述: |
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