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參數(shù)資料
| 型號： | PT4316 |
| 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)： | 10/27頁 |
| 文件大?。?/td> | 501K |
| 代理商： | PT4316 |
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Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
DATA FILTER
The data filter is also implemented as a 2nd-order low-pass Sallen-Key filter as shown in the following
figure. The pole locations are set by the combination of two on-chip resistors and two external
capacitors. Adjusting the value of the external capacitors changes the corner frequency to optimize for
different data rates. The corner frequency should be set to approximately 1.5 times the highest
expected data rate from the transmitter. Ideal Sallen-Key filter is as the following figure.
PT4316 V1.6
- 10 -
August, 2007
Low Power 315/433 MHz OOK/ASK Superheterodyne
Receiver with SAW-based Oscillator
PT4316
C6
C7
R
R
V
IN
V
OUT
Utilizing the on-board voltage follower and the two 100K
on-chip resistors, a 2
nd
-order Sallen-Key low
pass data filter can be constructed by adding 2 external capacitors between pins 7 (DFFB) and 8 (DSP)
and to pin 10 (OPP) as depicted in the Application Circuit (see p.18). The following table shows the
recommended values of the capacitors for the different data rate.
Data Rate
C6 (pF)
< 2Kb/s
2Kb/s — 10Kb/s
10Kb/s — 20Kb/s
20Kb/s — 40Kb/s
> 40Kb/s (see Note)
Note: the maximum data rate of PT4316 is 50Kb/s
C7 (pF)
270
150
56
15
4.7
1000
470
150
56
15
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT4316-S | Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver with SAW-based Oscillator |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4316-S | 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-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 |
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