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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： | 6/12頁 |
| 文件大小： | 98K |
| 代理商： | WHT9361 |
Preliminary WHT9361
- 6 -
FREQUENCY SYNTHESIZER SPECIFICATIONS, CONTROL REGISTER BIT
ALLOCATION FOR CHANNEL ASSIGNMENT
The local oscillator uses frequency synthesizer to generate at least 10 carrier frequencies with
channel spacing of 2.048 MHz. Here is an example of frequency designation.
A) Synthesizer Specifications
Operation Frequency
TX: 902 to 928 MHz
RX: 1012 to 1038 MHz
Channel Spacing
Channel Switching Time
Frequency Accuracy
Phase Noise
Reference Frequency
Reference Input Power
2.048 MHz
< 500
μ
S
±
50 ppm
-90 dBc/Hz @ 100 KHz
16.384 MHz
-10 to +6 dBm
B) Register Control (use PLL_DATA, PLL_CLK, PLL_LE )
a) The control signal timing of synthesizer IC:
PLL_DATA
PLL_CLK
PLL_LE
b) Reference counter value is 64 (reference frequency step is 256 KHz):
FIRST BIT
LAST BIT
MSB
S
14
0
R-counter
S
8
7
0
1
LSB
C
SW
S
13
0
S
12
0
S
11
0
S
10
0
S
9
0
S
S
6
0
S
5
0
S
4
0
S
3
0
S
2
0
S
1
0
1
1
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