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參數(shù)資料
| 型號(hào)： | RF2938TR13 |
| 英文描述： | Interface IC |
| 中文描述： | 接口IC |
| 文件頁(yè)數(shù)： | 13/20頁(yè) |
| 文件大?。?/td> | 606K |
| 代理商： | RF2938TR13 |
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2-13
RF2938
Rev A9 020122
11
T
SeeUpgradedProductRF2948B
Evaluation Board S chematic
(Download Bill of Materials from www.rfmd.com.)
Σ
Baseband Amp
LPF (f
=1 MHz to 40 MHz)
0-30 dB Gain
Active Selectable
LPF (f
=1 MHz to 40 MHz)
I
Q
I
Q
+45
°
-45°
TX_EN
15 dB
15 dB
Gain Range
RX_EN
15 dB
-15 dB to
35 dB Gain
IF Amp
Β
2
1
2
3
4
5
6
7
10
11
12
36
35
34
33
32
31
30
28
27
26
25
48
45
46
47
44
43
42
41
40
39
38
37
13
16
15
14
17
18
19
20
21
22
23
24
C13
100 pF
R5
10
VCC
C16
22 nF
C7
100 pF
L6
27 nH
C25
1 pF
50
μ
strip
J3
IF LO
C21
22 nF
VCC
GC TX
C3
100 pF
L9
68 nH
C36
2 pF
50
μ
strip
J2
TX IF IN
L2
150 nH
50
μ
strip
C4
100 pF
J1
RX IF IN
PD
VCC
TX EN
RX EN
C26
12 pF
L1
2.7 nH
VCC
R3*
0
50
μ
strip
R10*
0
C23
22 nF
50
μ
strip
J4
PA OUT
C24
22 nF
VCC
C27
2 pF
50
μ
strip
J5
PA IN
VCC
C22
22 nF
C28
22 pF
L3
3.9 nH
C29
3 pF
50
μ
strip
J6
RF LO
R8
1 k
L7
220 nH
C31
3 pF
C32
3 pF
L8
39 nH
C34
22 nF
VCC
C38*
5 pF
C33
5 pF
50
μ
strip
J8
IF OUT
I
O
SAWTEK
855392
FL1*
50
μ
strip
L4
3.9 nH
C25
22 nF
C30
22 pF
50
μ
strip
J7
RF OUT
C1
10 nF
C2
10 nF
C5
0.1 uF
50
μ
strip
J9
I IN
C6
0.1 uF
50
μ
strip
J10
Q IN
VCC
C20
22 nF
50
μ
strip
J11
I OUT
50
μ
strip
J14
Q DATA
50
μ
strip
J13
Q OUT
50
μ
strip
J12
I DATA
C17
8 pF
50
μ
strip
J15
RSSI
C18
22 nF
C19
22 nF
C11
10 nF
C10
10 nF
R4
10 k
C15
100 pF
R7
10
C14
100 pF
R6
0
VCC
VGC
NOTES:
1) R4 is used to set the bandwidth of the GMC Filters.
2) Pins 14 through 22 contain 2.4 GHz signals. Place tuning/bypass components
as close as possible. Make all lines on these pins 50
.
3) For normal operation, move C33 to C38 and install all components with an
asterisk.
*Do not populate.
P1
1
3
CON3
P1-3
GC TX
GND
VCC
P1-1
C9
10 nF
C12
4.7 uF
+
P2
1
3
CON3
P2-3
RX EN
GND
P2-1
TX EN
P3
1
3
CON3
P3-3
VGC
GND
P3-1
PD
2938400, Rev
-
R1
270 k
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