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參數(shù)資料
| 型號(hào)： | RF2908 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 915MHZ SPREAD SPECTRUM RECEIVER WITH PLL FREQUENCY SYNTHESIZER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 534K |
| 代理商： | RF2908 |
11-96
RF2908
Rev C1 010904
11
T
Application S chematic
915MHz
6.8nH
LNA
+45°
-45°
0-25 dB
0-20 dB
-12-12dB
17dB
6 dB
-0.5/-20.5
Chip
Control
5-bit Counter
/32
Prescaler
32/33
7-Bit Swallow
Counter
0-85
7-Bit
Latch
Phase
Detector
Charge Pump
7-Bit Counter
/94
902-928 MHz
VCO
Ref. Osc.
300 kHz
300 kHz
46
14
13
12
11
4
35
36
37
38
1
2
47 48
44
3
6
8
10
7
9
5
43
17
20
39
42
45
22
41
40
21
19
15
18
16
7
30
31
32
33
29
28
23
24
7-Bit Shift
Register
7
26
25
27
34
100pF
100pF
56pF
0.27
μ
F
56pF
0.1
μ
F
47pF
+3.3V REG
47pF
0.1
μ
F
4.7
μ
F
2k
L
C
C
L
L
C
C
L
10
0.27
μ
F
22k
2.2nF
220pF
Loop Filter
0.1
μ
F
47pF
10
1
μ
F
+3.3V REG
0.1
μ
F
47pF
10
+3.3V REG
0.1
μ
F
47pF
10
+3.3V REG
0.01
μ
F
47pF
10
+3.3V REG
0.01
μ
F
47pF
10
+3.3V REG
0.1
μ
F
0.1
μ
F
6.8nH
6.8nH
Refer to Filter Design Information
for Component Values
0.1
μ
F
0.1
μ
F
Refer to Filter Design
Information for
Component Values
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