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RF2908 数据表(PDF) 13 Page - RF Micro Devices

部件名 RF2908
功能描述  915MHZ SPREAD SPECTRUM RECEIVER WITH PLL FREQUENCY SYNTHESIZER
PDF  18 Pages
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制造商  RFMD [RF Micro Devices]
网页  http://www.rfmd.com
标志 RFMD - RF Micro Devices

RF2908 数据表(HTML) 13 Page - RF Micro Devices

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11-97
RF2908
Rev C1 010904
11
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
C23
100 nF
C25
1nF
L8
10
µH
C26
470 pF
C41
10 nF
C40
10 nF
T2
5:1
50
Ω µstrip
J9
Q MIX OUT
C42
10 pF
L9
10
µH
C34
22 pF
C33
10 nF
R6
10
Ω
VCC
C36
22 pF
C35
10 nF
R5
10
Ω
VCC
ATTN
50
Ω µstrip
J1
RF IN
L5
8.2 nH
C18
100 nF
C20
220 nF
L7
10
µH
C16
470 pF
C38
10 nF
C37
10 nF
T1
5:1
50
Ω µstrip
J2
I MIX OUT
C39
10 pF
L6
10
µH
I DCFB
IF VCC
J3
IF OUT
C2
68 pF
C1
33 pF
X1
9.6 MHz
I RSSI
J4
I DATA
R7
0
Ω
IF VCC
C43
68 pF
L3
5.6 nH
L2
5.6nH
PLL VCC
C9
10 nF
C10
22 pF
C5
47 pF
R3
0
Ω
50
Ω µstrip
C7
Open
C6
Open
J5
LO OUTB
C11
47 pF
R7
0
Ω
50
Ω µstrip
C13
Open
C12
Open
J6
LO OUT
R2
1k
Ω
PLL VCC
C3
10 nF
C4
22 pF
R2
1k
Ω
R8
12 k
Ω
PLL DATA
R9
27 k
Ω
R12
12 k
Ω
PLL CLK
R13
27 k
Ω
R10
12 k
Ω
LE
R11
27 k
Ω
C14
220 pF
R4
33 k
Ω
C15
4.7 nF
PLL ENABL
RX ENABL
BW SEL2
BW SEL1
J7
Q DATA
Q RSSI
C44
68 pF
VREF
C21
47 nF
DCFBQ
IF VCC
C22
220 nF
C46
1
µF
J8
IF OUT Q
GC
P1-1
P1-3
P1
DCFBQ
GND
1
2
3
VREF
P7-1
P7-3
P7
ATTN
GND
1
2
3
RX ENABL
P8-1
P8-3
P8
BW SEL1
GND
1
2
3
BW SEL2
P2-3
P2
IF VCC
GND
1
2
3
GC
P3-1
P3-3
P3
Q RSSI
GND
1
2
3
I RSSI
P4-1
NC
P4
DCFBI
GND
1
2
3
NC
P5-3
P5
AMP D-Sub
LE
1
2
3
4
5
6
7
8
9
PLL DATA
C45
1
µF
C32
10 nF
C31
100 pF
C30
10 nF
C29
100 pF
C28
10 nF
C27
100 pF
P2-1
P6-1
P6-3
P6
PLL VCC
GND
1
2
3
PLL ON
PLL CLK
GND
NC
NC
NC
NC
P5-8
P5-2
2908400-
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
MOUT Q+
MIX VCC
MIX GND
LNA GND
LNA IN
SW GND
LNA VCC
SW GND2
ATTN
MOUT I+
PLL ENABL
DO
LO OUT
RESNTR-
RESNTR+
LO OUT B
PLLD VCC
PLL GND
PLL DATA
PLL CLK
LE
48
45
46
47
44
43
42
41
40
39
38
37
13
16
15
14
17
18
19
20
21
22
23
24
MOUT I-
MOUT Q-
RX
ENBL
C24
100 nF
C19
100 nF



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