參數(shù)資料
型號(hào): RF2488
廠商: RF MICRO DEVICES INC
元件分類(lèi): 衰減器
英文描述: MULTI-MODE DUAL-BAND LNA MIXER
中文描述: RF/MICROWAVE DOWN CONVERTER
文件頁(yè)數(shù): 11/22頁(yè)
文件大?。?/td> 483K
代理商: RF2488
Preliminary
8-133
RF2488
Rev A0 010905
8
F
Evaluation Board S chematic
IF @135MHz
(Download Bill of Materials from www.rfmd.com.)
J4
LNA1 IN
J5
LNA2 IN
C4
100 pF
GAIN SEL
L4
12 nH
50
μ
strip
J8
LNA2 OUT
50
μ
strip
J10
MX2 IN
C16
10 pF
L12
180 nH
C17
10 pF
L16
560 nH
R10
820
C21
1 nF
50
μ
strip
J6
IF2 OUT
C18
1 nF
MX VCC
C7
100 pF
L11
180 nH
C14
10 pF
C15
10 pF
L15
560 nH
R9
820
C20
1 nF
C22
8 pF
L13
180 nH
C19
1 nF
50
μ
strip
J7
IF1 OUT
C6
100 pF
Band Select
L3
2.2 nH
50
μ
strip
J3
LO1 IN
TX/RX
C3
100 pF
C5
100 pF
LNA1 VCC
L1
15 nH
C1
1.2 pF
50
μ
strip
J1
LNA1 OUT
Bias VCC
C2
100 pF
50
μ
strip
J2
MX1 IN
JP1
C27
1 nF
C13
33 nF
C11*
DNI
2488400-
19
20
21
22
23
1
5
4
3
2
6
9
8
7
11
10
15
14
13
12
24
16
17
18
L5
2.2 nH
50
μ
strip
J9
LO2 IN
C24
100 pF
L10
2.2 nH
L8
56 nH
HEADER 8X2
16
13
15
14
10
12
11
7
9
8
4
6
5
1
3
2
C28
1 nF
C29
1 nF
C30
1 nF
C31
1 nF
C32
1 nF
C33
1 nF
C34
1 nF
C35
1 nF
L9*
DNI
C12
33 nF
L17
10 nH
R5
0
R6*
0
LNA2 VCC
C8
10 pF
G
G
G
G
I/O
I/O
FL2*
Saw Filter
R7*
0
IF OUT
SELECT
C9
100 pF
L7
8.2 nH
R8
0
L14
180 nH
C23
8 pF
C10
5 pF
L6
4.7 nH
L2
4.7 nH
R4
0
R1
0
R3*
0
R2*
0
G
G
G
G
I/O
I/O
FL1*
Saw Filter
C26
1
μ
F
+
P1
1
CON2
2
GND
VCC
C25
3 pF (HQ)
LNA1 VCC
LNA2 VCC
MX VCC
IF Out Select
Gain Select
Bias VCC
Band Select
TX/RX
R11
10 k
R12
10 k
R13
10 k
R14
10 k
NOTE: Parts with * after reference designator should not be populated on evaluation board.
TRL
TRL
50
μ
strip
50
μ
strip
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