參數(shù)資料
型號: RF2456
廠商: RF MICRO DEVICES INC
元件分類: 無繩電話/電話
英文描述: CDMA/FM DOWNCONVERTER
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO16
封裝: SSOP-16
文件頁數(shù): 4/8頁
文件大?。?/td> 261K
代理商: RF2456
6-4
RF2456
Rev B6 010717
6
M
Application S chematic
Evaluation Board S chematic
(Download Bill of Materials from www.rfmd.com.)
33 nF
33 nF
15 nH
LO IN
IF SELECT
33 nF
5.6 nH
3.3 pF
15 nH
L
L
L
CDMA SAW Filter
33 nF
1
μ
F
FM SAW Filter
L
CDMA IF OUT
FM IF OUT
V
CC
PD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
MIX IN
C9
33 nF
C6
33 nF
L5
8.2 nH
C7
1.5 pF
L6
15 nH
C1
33 nF
L1
150 nH
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2456400 Rev A
T1
**XFMER
R3
10
C2
10 pF
R1
33
R2
68
C8
33 pF
50
μ
strip
J1
RF IN
50
μ
strip
J4
LO IN
VCC
50
μ
strip
J2
FM IF2
50
μ
strip
J3
CDMA IF1
IF SELECT
ENABLE
P2
1
2
3
P2-3
ENABLE
GND
P2-1
IF SELECT
GND
P1-1
VCC
P1
1
2
3
L7
15 nH
50
μ
strip
J5
L8*
TBD
R4
220
C3
9 pF
L2
390 nH
C4
9 pF
C5
33 nF
C10
1 uF
+
L3
3.3 uH
VCC
L4
3.3 uH
VCC
NOTE:
**Core: Fair-Rite Balun #2865002402
L12: 3 turns #30 AWG (Green)
L34: 12 turns #32 AWG (Red)
One turn = One pass through BOTH holes winding starts and finishes on same end of core.
L12 and L34 exit opposite ends of core.
2
3
1
F1*
DNI
GND
O
I
0
0
1
1
Enable
0
1
0
1
IF Select
Off
Off
FM
CDMA
Stage
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