參數(shù)資料
型號: RF2498
廠商: RF MICRO DEVICES INC
元件分類: 無繩電話/電話
英文描述: TRI-BAND/QUAD-MODE CDMA/GPS LOW NOISE AMPLIFIER/MIXER
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC32
封裝: 5 X 5 MM, PLASTIC, QFN-32
文件頁數(shù): 13/20頁
文件大?。?/td> 723K
代理商: RF2498
8-313
RF2498
Rev A3 030711
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
C27
6.8 pF
R5
7.5 k
C34
DNI
R1
5.6 k
L10
120 nH
L4
180 nH
VCC
C21
100 pF
C4
6.8 pF
50
μ
strip
J1
GPS IF
C28
6.8 pF
C35
DNI
R2
10 k
L11
120 nH
L6
180 nH
L7
DNI
VCC
C22
100 pF
C17
DNI
C6
5.1 pF
C31
DNI
C11
DNI
L2
DNI
C12
DNI
C2
33 nF
50
μ
strip
J2
CDMA IF
C38
6.8 pF
C36
DNI
R3
24 k
L12
120 nH
L9
DNI
L8
150 nH
C14
DNI
L3
DNI
C15
DNI
C13
DNI
C3
33 nF
50
μ
strip
J3
FM IF
C29
6.8 pF
C5
6.2 pF
VCC
C23
100 pF
C18
DNI
C44
33 nF
VCC
R7
DNI
50
μ
strip
J4
LO IN
L17
2.2 nH
50
μ
strip
J5
LO OUT
DIV EN
TX BUF EN
L18
3.3 nH
C33
33 nF
VCC
C8
33 nF
MIX
GAIN
ENABLE
C16
1 pF
C61
33 nF
C59
DNI
50
μ
strip
J6
PCS MIX IN
50
μ
strip
J7
CELL MIX IN
LNA GAIN
L21
10 nH
C25
100 pF
VCC
C69
2.4 pF
50
μ
strip
J8
CELL LNA OUT
L24
1.2 nH
L16
33 nH
C64
33 nF
50
μ
strip
J9
CELL LNA IN
L22
4.7 nH
L27
2.7 nH
R9
10
C63
33 nF
50
μ
strip
J10
PCS LNA OUT
C26
100 pF
VCC
IP SET
C66
DNI
50
μ
strip
J11
PCS LNA IN
C70
0.75 pF
C62
33 nF
L23
DNI
C19
1.0 pF
50
μ
strip
J12
GPS LNA IN
IF SEL
L20
18 nH
R8
10
C24
100 pF
VCC
L19
6.8 nH
C50
33 nF
50
μ
strip
J13
GPS LNA OUT
C48
DNI
BAND SEL
C41
DNI
C40
33 nF
50
μ
strip
J14
GPS MIX IN
R4
20 k
R6
5.1 k
C43
33 nF
VCC
L13
33 nH
C42
33 nF
2498310, Rev. 1
P3
1
2
3
CON3
GND
GND
P3-1
VCC
C20
1
μ
F
*IF FREQ = 184 MHz
C39
6.8 pF
C37
6.8 pF
32
1
9
17
2
3
4
5
6
7
8
10
11
12
13
14
15
16
24
23
22
21
20
19
18
31
30
29
28
27
26
25
/
C10
DNI
L26
DNI
L14
DNI
C30
DNI
4
5
10
9
FL3
IF SAW
FL2
CDMA
IF SAW
4
5
10
9
C1
DNI
R10
0
C9
33 nF
C58
DNI
C56
DNI
FL4
Cell RF Saw
6
3
4
1
5
2
O
I
GND
GND
GND
GND
PCS
RF SAW
FL5
OUT
IN
G
G
G
G
6
3
4
1
5
2
FL6
4
1
6
3
5
2
OUT
IN
G
G
G
G
GPS
RF Saw
L25
33 nH
R11
1.2 nH
C7
33 nF
P1
1
2
3
4
CON4
P1-1
C45
33 nF
DIV EN
P1-2
C51
33 nF
IF SEL
P1-3
C52
33 nF
IP SET
P1-4
C49
33 nF
BAND SEL
P2
1
2
3
4
CON4
P2-4
C55
33 nF
LNA GAIN
P2-3
C53
33 nF
MIX GAIN
P2-2
C46
33 nF
TX BUF EN
P2-1
C54
33 nF
ENABLE
R12
200
L15
1.2 pF
L5
33 nF
C32
2.7 nH
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