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參數(shù)資料
| 型號： | RF2475 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | DUAL-BAND LOW NOISE AMPLIFIER/MIXER WITH FREQUENCY DOUBLER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC28 |
| 封裝： | 5 X 5 MM, LCC-28 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 547K |
| 代理商： | RF2475 |
Preliminary
8-97
RF2475
Rev A2 010918
8
F
Evaluation Board S chematic
(Download Bill of Materials from www.rfmd.com.)
1
2
5
6
4
3
7
14
13
12
11
10
9
8
15
16
17
18
20
19
21
22
23
24
25
26
27
28
X2
C23
10 pF
L1
8.2 nH
L14
10 nH
VCC LNA2
C21*
DNI
C1
1 nF
2
1
4
3
6
5
R3*
DNI
C2
3 pF
VCC MX1
FL2*
FAR-F6CE-
1G9600-L2XB
IN
OUT
G
G
R1
0
C4
0.5 pF
L2
18 nH
R2
0
J1
LNA2 OUT
50
μ
strip
J2
MX2 IN
50
μ
strip
R5
300
L3
7.5 nH
C5
3 pF
VCC LO1
C7
100 pF
C6
4 pF
J10
LO1 OUT
50
μ
strip
L4
4.7 nH
C36
3 pF
J3
LO1 IN
50
μ
strip
C8*
DNI
C11
8 pF
L6
56 nH
L5
56 nH
C9
3 pF
VCC IF
C10
1 nF
C24*
DNI
C22
1 nF
R6*
DNI
C12
10 pF
L7
150 nH
J4
IF OUT
50
μ
strip
Part of Test Board
C13
3 pF
VCC DBLR
C14
100 pF
+
R7
510
L8
1.8 nH
C15
1.5 pF
VCC LO2
C16
1.5 pF
R4
0
J5
LO2 OUT
50
μ
strip
C18
3 pF
VCC MX2
L11
12 nH
C20
100 pF
VCC LNA1
C19
1.2 pF
R11*
DNI
R10
0
J7
LNA1 OUT
50
μ
strip
R9*
DNI
R8
0
FL1*
FAR-F5CE-
881M50-K210
2
1
4
3
6
5
IN
OUT
G
G
J6
MX1 IN
50
μ
strip
C17
3 pF
L15
2.7 nH
L9
39 nH
GAIN SEL
TRL1
C38
33 nF
L12
3.9 nH
J8
LNA1 IN
50
μ
strip
C37
33 nF
L13
56 nH
C38
4 pF
L12
3.9 nH
J9
LNA2 IN
50
μ
strip
2475400, Rev. -
GND
P2-2
GAIN SEL
P2-3
GAIN
P2
1
2
3
CON3
GND
GND
P1-4
VCC
P1-1
VCC
P1
1
2
3
4
CON4
NOTES:
1. For best image rejection, provide a common ground under the device connecting pins 10, 11, 26, and 27.
2. There is a single gain select pin for both frequency bands.
3. The image reject SAW filters are assumed to have a 3 dB insertion loss and 40 dB of image rejection.
4. Parts with "
*
" should not be populated on the evaluation board.
C26
1 nF
C25
1 uF
+
C29
1 nF
C35
1 nF
C31
1 nF
C33
1 nF
Gain
VCC LNA2
VCC LNA1
C27
1 nF
VCC MX2
VCC LO2
VCC DBLR
VCC IF
VCC MX1
VCC LO1
VCC
C28
1 nF
C30
1 nF
C34
1 nF
C32
1 nF
JP1
HEADER 9X2
16
18
17
13
15
14
10
12
11
7
9
8
4
6
5
1
3
2
Part of Test Board
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