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參數(shù)資料
| 型號： | RF2905 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | 433/868/915MHZ FM/FSK/ASK/OOK TRANSCEIVER |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 490K |
| 代理商： | RF2905 |
11-65
RF2905
Rev B11 010516
11
T
Applic ation S chematic
915 MHz
17
18
26
12
11
9
Linear
RSSI
24
7
5
Gain
Control
47
3
31
30
34
Prescaler
128/129 or
64/65
Phase
Detector &
Charge Pump
41
40
39
38
35
36
Lock
Detector
42
43
Ref
Select
37
14
13
DATA OUT
RSSI
DIV CTRL
MOD CTRL
OSC SEL
23
MUTE
21
20
22
16
15
LVL ADJ
LOCK DET+
45
PRESCL OUT
28
27
25
FM OUT
D1
4.7
nH
4.7
nH
V
CC
2.7
k
3.3
nF
47 nF
Filter
22 pF
10 nH
10 pF
V
CC
8.2
μ
H
22 pF
V
CC
Filter
Filter
FM Disc.
51 k
10 pF
TX DATA
3.9 k
5 pF
22 pF
10 nF
100 pF
100 pF
10 nF
10 nF
10 nF
10 nF
10 nF
10 nF
5 pF
100
pF
100
pF
100
pF
0.1
uF
10
11 pF
10
10 nF
10
10 nF
D1 : SMV1233-011
22 pF
29
10
V
CC
10 nF
2
1
48
PLL ENABL
RX ENABL
TX ENABL
22
pF
V
CC
10 nF
32
PLL LOOP BANDWIDTH ~5 kHz
10
46
4.7
uF
22 pF
V
CC
10 nF
10
44
10
nF
22
pF
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