CX74001(2000) 데이터 시트보기 (PDF) - Conexant Systems
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CX74001 Datasheet PDF : 16 Pages
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Rx ASIC
CX74001
VCC_1900_LNA
8.2 nH
10
1 nF
8.2 pF
TO PCS
RF SAW FILTER
INPUT
50 ohms
VCC_LNA
1 nF
6.8 nH
10
8.2 pF
TO CDMA
RF SAW FILTER
INPUT
LNA_CTRL
50 ohms
1K
10 nF
PCS LNA INPUT
8.2 pF
1.2 nH
DNI
LNA_CTRL
CELL LNA INPUT
1K
8.2 pF
8.2 pF
33 pF
15 pF
10 nH
33 pF
Vcc
15 K
27 K
220
CELL/PCS
FM/PCS
VCO_ON
50 ohms
1000 pF
Vcc
VCC_TANK
1 µF
5.1
1 nF
220 pF
82 nH
18 pF
5.1
1 nF
5.1
1 nF
5.1 K
5.1 K
A1
A2
0
82 nH
0
18 pF
LNA_CTRL1
1
PCS_LNAIN 2
LNA_CTRL0
3
CELL_LNA_IN 4
VCC_RF_BIAS
5
CELL_LNA_EMIT
6
CELL/PCS
7
FM/CDMA
8
VCO_VCC
9
VCO_ON
10
CELL_TANK–
11
CELL_TANK+
12
PCS_TANK–
13
CX74001
TUNE
2K
C
NOTES:
1. COMPONENT VALUES MAY CHANGE
2. DNI = DO NOT INSTALL
VCC_TANK
2.2 µF
5.1
1 nF
220 pF
12 nH
5.1
1 nF
5.1
1 nF
22 pF
5.1 K
5.1 K
A2 A1
TUNE
2K
C
0
12 nH
0
22 pF
LOD
5.1 K
FROM CDMA
RF SAW FILTER OUTPUT
10 nH
4.7pF
8.2 pF
33 pF
3.3 pF
1.5 nH
4.7 µF
50 ohms
50 ohms
FROM PCS
RF SAW FILTER OUTPUT
800LO
1900LO
33 pF
18 nH
DNI
DNI
1 nF
18 nH
DNI
DNI
1 nF
VCC_MIX
33 pF
TO PCS
IF SAW FILTER INPUT
33 PF
VCC_MIX
47 nF
VCC_MIX
37
PCS_MIXER_OUT+
36
PCS_MIXER_OUT–
35
AMPS_MIXOUT+
34
AMPS_MIXOUT–
33
CDMA_MIXOUT+
32
CDMA_MIXOUT–
31
PCS_VGA_IN+
30
PCS_VGA_IN–
29
AMPS_VGA_IN
28
CDMA_VGA_IN+
27
CDMA_VGA_IN–
26
VCC_IF
25
12 pF
4.7 nF
0.1 µF
8.2 pF
390 nH
750 nH
DNI
4.7 nF
DNI
33 pF
0
4.7 nF
8.2pF
47 nH
2.2 K
DNI
4.7 nF
33 pF
1 nF
1 nF
4.7 nF
4.7 nF
4.7 nF
47 nH
2.2 K
DNI
4.7 nF
33 pF
VCC_MIX
TO IF AMPS
SAW FILTER INPUT
VCC_MIX
TO CDMA
IF SAW FILTER INPUT
VGA_PCS_IN+
VGA_PCS_IN–
VGA_AMPS_IN
VGA_CDMA_IN+
VGA_CDMA_IN–
10
1000 pF
VCC_IF
VGA_CTRL
0
0
0
0
100 pF
100 pF
SLEEP
RXQ–
RXQ+
RXI+
RXI–
STM
PLL+
PLL+
Figure 4. CX74001 Schematic Diagram
101134A
Conexant - Preliminary
13
October 20, 2000
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