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參數資料
| 型號： | WHT9361 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 衰減器 |
| 英文描述： | 902-928MHZ GFSK RF Module(902-928MHZ的GFSK式調制/解調的射頻模塊) |
| 中文描述： | RF/MICROWAVE UP/DOWN CONVERTER |
| 封裝： | 16 PIN |
| 文件頁數： | 2/12頁 |
| 文件大?。?/td> | 98K |
| 代理商： | WHT9361 |
Preliminary WHT9361
- 2 -
Figure 2. Block Diagram of Wireless Data Transceiver
RF Module Block Diagram
The functional block diagram of WHT9361 is shown in Figure 3.
Figure 3. Block Diagram of WHT9631 RF Module
A) Transmitter
The module employs a T/R switch to switch between transmit and receive in the time domain. The
MOD_DATA spreaded baseband digital data signal is filtered and up-converted to RF by the GFSK
modulator. Owing to the following properties: constant envelope, compact spectrum, fast roll-off of
higher-order sideband, and easy detection, GFSK is used. High or low PA output power levels are
selectable via the PWR_CTL control pin. The PA output then routes through the transmit/receive T/R
switch and is filtered by a ceramic band pass filter to remove harmonic spurious before exiting the
module at the antenna port.
SST W9310F
RF Module
WHT9361
W78C51
External
PC
(DTE)
MO
90
°
Limiter
Data Slicer
SAW BPF
Fc = 110.592 MHz
Driver
PA
BPF
T/R
Switch
LNA
Mixer
Loop
Filter
VCO TX: 902-928 MHz
RX: 1012-1038 MHz
Synthesizer
Gaussion LPF
Crystal Oscillator
F = 120 MHz
BATT_IN
VCC
16.384 MHz
PLL_DATA
MOD_DATA
PLL_CLK
PLL_LE
PLL_SW
RF_PWR
DEMOD_DATA
PWR_CTL
GND
RSSI
Quadrature Detector
GND
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