參數(shù)資料
型號: RF2449
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
封裝: SSOP-24
文件頁數(shù): 7/14頁
文件大小: 288K
代理商: RF2449
Preliminary
8-81
RF2449
Rev A4 001016
8
F
Evaluation Board S chematic
(Download Bill of Materials from www.rfmd.com.)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
50
μ
strip
C1
33 nF
L2
30 nH
50
μ
strip
L1
6.8 nH
50
μ
strip
C3
100 pF
C2
1 nF
VCC1
50
μ
strip
R1
510
L3
6.8 nH
VCC2
C6
3.0 pF
50
μ
strip
J2
LNA OUT
410 ps Electrical Delay @ 880 MHz
0.13 dB Line Loss
J1
LNA IN
440 ps Electrical Delay @ 880 MHz
0.14 dB Line Loss
R2
22 k
R3
33 k
L7
470 nH
R4
5.6 k
C7
5 pF
C8
5 pF
50
μ
strip
50
μ
strip
50
μ
strip
C9
8 pF
50
μ
strip
J4
IF1 OUT
268 ps Electrical Delay @ 110 MHz
0.025 dB Line Loss
L6
220 nH
C10
100 pF
C11
1 nF
VCC1
50
μ
strip
L4
1.5 nH
C17
33 nF
50
μ
strip
L5
22 nH
50
μ
strip
*
C18
100 pF
VCC2
C19
100 pF
50
μ
strip
50
μ
strip
J6
LO IN
313 ps Electrical Delay @ 880 MHz
0.09 dB Line Loss
J5
IF2 OUT
268 ps Electrical Delay @ 110 MHz
0.025 dB Line Loss
50
μ
strip
L9
470 nH
R5
5.6 k
50
μ
strip
50
μ
strip
C16
5 pF
C15
5 pF
L8
220 nH
50
μ
strip
C14
8 pF
50
μ
strip
50
μ
strip
C12
100 pF
C13
1 nF
VCC1
1
2
3
P2
CON3
P2-3
IF SEL
GND
P2-1
LNA GAIN
P1-1
IP SET
GND
P1-3
ENABLE
1
2
3
P1
CON3
1
2
3
P3
CON3
P3-3
C20
22 pF
MIX GAIN
GND
NC
1
2
3
P4
CON3
P4-3
VCC2
GND
P4-1
VCC1
NOTE:
LE
Microstrip Inductor, Z
O
= 50
, L = 100 mils
For IF Freq. = 85 MHz
C14, C15, C5, C6 = 8 pF
L6 and L8 = 470 nH
C7 and C13 = 15 pF
50
μ
strip
J3
MIXER IN
290 ps Electrical Delay @ 880 MHz
0.07 dB Line Loss
50
μ
strip
2449400A
C5
100 pF
C4
1 nF
ENABLE
IP SET
IF SEL
LNA GAIN
MIX GAIN
R6
56
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