參數(shù)資料
型號: RF2461
廠商: RF MICRO DEVICES INC
元件分類: 無繩電話/電話
英文描述: CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC20
封裝: 4 X 4 MM, QFN-20
文件頁數(shù): 8/14頁
文件大?。?/td> 365K
代理商: RF2461
Preliminary
8-130
RF2461
Rev A13 010607
8
F
Evaluation Board Schematic - J CDMA
LO@741MHz, RF @851 MHz, IF @110 MHz
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
VCC1
50
μ
strip
C1
33 nF
L2
16 nH
50
μ
strip
L1
4.3 nH
50
μ
strip
IF SEL
ENABLE
IP SET
C16
100 pF
50
μ
strip
R6
56
50
μ
strip
50
μ
strip
L8
270 nH
C15
100 pF
50
μ
strip
C14
7 pF
50
μ
strip
L9
330 nH
50
μ
strip
R5
4.3 k
C13
9 pF
C12
10 pF
C11
100 pF
50
μ
strip
C8
7 pF
50
μ
strip
L6
330 nH
R4
4.3 k
C9
9 pF
50
μ
strip
50
μ
strip
50
μ
strip
C10
11 pF
L7
270 nH
VCC1
C7
100 pF
50
μ
strip
R1
620
L4
7.5 nH
C5
4 pF
50
μ
strip
C4
100 pF
C3
0.1
μ
F
VCC1
498 pS Electrical Delay
0.15 dB Line Loss
R2
18 k
R3
33 k
L4
7.5 nH
50
μ
strip
C6
33 nF
50
μ
strip
L5
30 nH
50
μ
strip
P1
1
2
3
CON3
P1-3
LNA GAIN
GND
P1-1
MIX GAIN
P2
1
2
3
CON3
P2-3
ENABLE
P2-2
IP SET
P2-1
IF SEL
P3
1
2
3
CON3
P3-1
VCC1
GND
P3-3
VCC2
VCC2
VCC1
Note: R14 improves NF and IIP3 for V
CC
= 3.0 V
R14
51
50
μ
strip
L=130 mils
W=12 mils
Z
0
=50
J1
LO IN
447 pS Electrical Delay
0.13 dB Line Loss
J2
LNA IN
329 pS Electrical Delay
0.10 dB Line Loss
LNA GAIN
MIX GAIN
J3
LNA OUT
J5
IF1 OUT
348 pS Electrical Delay @ 110 MHz
0.03 dB Line Loss
J4
MIXER IN
320 pS Electrical Delay @ 880 MHz
0.10 dB Line Loss
J6
IF2 OUT
348 pS Electrical Delay @ 110 MHz
0.03 dB Line Loss
BYPASS
R14
51
C2
100 pF
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