FC1703
Receiver RFIC for Dual-Band Triple Mode
6 / 17
Last Update 03/28/03
Future
Communications
Integrated circuit Inc.
TYPICAL APPLICATION SCHEMATIC (Cellular CDMA/AMPS & US-PCS)
N1:N2=16:1
*0.3dB Line Loss for PCS*
2
L11
4.7nH
C4
100nF
BufferEn
VCC
C5
1.8pF
SEL3
CDMA_IFB
14
VCC
VCC
SEL1
C9
3pF
C3
3.3pF
13
VCC
C
100nF
RLNA
**CDMA_IF and AMPS_IF tuned to 180MHz
L5
27nH
CLNA_IN
C1
10nF
RCMIX
C16
10nF
C21
10nF
J2
4
FC1703
L4
12nH
*0.2dB Line Loss for Cellular*
R8
20k ohm(1%)
SEL1
*0.05dB Line Loss*
C13
3pF
2
PMIX_IN
L7
27nH
R5
100 ohm
VCC
CLNA_IN
C8
3pF
L8
27nH
S2
C17
10nF
*0.05dB Line Loss*
6
*0.3dB Line Loss for PCS*
6
J10
C15
9pF
L9
56nH
CLNA_GND
TX1
FM_IF
*0.1dB Line Loss*
C6
10nF
J9
C2
10nF
LO/2
S3
FM_IF
*0.15dB Line Loss*
CDMA_IF
*1.5dB Transformer Loss*
PLNA_IN
*0.15dB Line Loss*
R2
10k ohm(1%)
LO_IN
LO_OUT
L10
3.9nH
LO_OUT
*0.2dB Line Loss*
*0.2dB Line Loss for Cellular*
L6
27nH
C19
100nF
1
18
J1
CLNA_OUT
5
L1
6.8nH
CDMA_IF
*0.15dB Line Loss*
R7
3k ohm
BufferEN
J4
R1
30k ohm(1%)
17
PLNA_IN
*R3 & R4 is necessary component.
C20
2.7pF
FM_IFB
VCC
5
1
SEL2
J6
J5
*0.15dB Line Loss*
BUF
C7
10nF
J8
NC
R6
3k ohm
3
(The distances between FC1703 and R3 and FC1703 and
R4 are as short as possible.)
S1
R3
0 ohm
2.7V
4
C11
10nF
L3
8.2nH
PLNA_OUT
C
100pF
R4
0 ohm
15
3
C14
3pF
CMIX_IN
J3
LO/2
16
C18
1.8pF
L2
3.9nH
C10
8pF
VCC
C12
10nF
J7
NOTE: RF and IF matching component values are dependent on board layout, RF and IF SAW filter and the IF
frequency selected. Please contact FCI application engineering for assistance.
-
Measurement Condition
VDD : 2.7V
Low-Band LNA RF Frequency : 869 ~ 894 MHz (Center : 880 MHz)
RF input Power : -30 ~ -25 dBm
Low-Band Mixer RF Frequency : 869 ~ 894 MHz (Center : 880 MHz)
RF input Power : -30 ~ -25 dBm
Low-Band Mixer LO Frequency : 2098 ~ 2148 MHz (Center : 2120 MHz) LO input Power : -5 dBm
High-Band LNA RF Frequency : 1930 ~ 1990 MHz (Center : 1960 MHz) RF input Power : -30 ~ -25 dBm
High-Band Mixer RF Frequency :1930 ~ 1990 MHz (Center : 1960 MHz) RF input Power : -30 ~ -25 dBm
High-Band Mixer LO Frequency :2110 ~ 2170 MHz (Center : 2140 MHz) LO input Power : -5 dBm
Mixer IF Frequency : 180 MHz