Dual-band
antenna
TX block
IF block
GPS statellite
CXG1100TN
Dplx
CDMA RX
×2
GPS RX
CXG1115ER
Ext.
CDMA base station
IF block
s
Figure 1 Next-Generation Global Positioning Infor-
mation Service
s
Figure 2 CXG1100TN/CXG1115ER Application Circuit
CDMA LNA Representative Characteristics 1
Power Gain and Noise Figure vs. RF Frequency
16
15
14
13
12
11
10
9
8
7
6
800
820 840
860 880
fRF – RF frequency [MHz]
0
900
NF
2
1
3
Gp
5
CDMA Mixer Representative Characteristics 1
Conversion Gain and Noise Figure vs. RF Frequency
13
15
fLO = fRF – 110 MHz 12
14
LOin = –10 dBm
11
13
Gc
10
12
11
10
9
8
7
6
5
800
820 840
860 880
fRF – RF frequency [MHz]
NF
9
8
7
6
5
4
3
900
20
GPS LNA Representative Characteristics
Power Gain and Noise Figure vs. RF Frequency
5
19
GPS Mixer Representative Characteristics
Conversion Gain and Noise Figure vs. RF Frequency
13
11
Gc – Conversion gain [dB]
Gc – Conversion gain [dB]
Gc – Conversion gain [dB]
10
9
8
7
6
5
4
3
2
NF – Noise figure [dB]
NF – Noise figure [dB]
NF – Noise figure [dB]
17
16
15
14
13
12
11
Gp
10
9
8
7
NF
fLO = 1/2
×
(fRF – 110 MHz)
LOin = –10 dBm
6
5
4
3
2
1
NF
10
0
1525 1545 1565 1585 1605 1625
fRF – RF frequency [MHz]
3
1
1525 1545 1565 1585 1605 1625
fRF – RF frequency [MHz]
CDMA LNA Representative Characteristics 2
Output Power and IM3 vs. Input Power
20
10
0
Pout
CDMA Mixer Representative Characteristics 2
Output Power and IM3 vs. Input Power
20
10
0
Pout
s
Table 1
CXG1100TN Representative Electrical
Characteristics
(Ta
Symbol
Condition
900 MHz
1.58 GHz
900 MHz
1.58 GHz
50
Ω
*1
*1
*2
Typ.
0.35
0.46
22
17.2
1.2
–75
–75
60
25°C)
Unit
dB
dB
dB
dB
—
dBc
dBc
dBm
P
OUT
– RF output power [dBm]
–10
–20
–30
–40
–50
–60
–70
–80
–40
IM3
fRF1 = 850 MHz
fRF2 = 850.9 MHz
P
OUT
– RF output power [dBm]
–10
–20
–30
–40
–50
–60
–70
–80
–40
fRF1 = 850 MHz
fRF2 = 850.9 MHz
fLO = 740 MHz
LOin = –10 dBm
–30 –20
–10
0
Pin – RF input power [dBm]
10
IM3
Insertion loss
Isolation
VSWR
Harmonics
Input IP3
IL
ISO.
VSWR
2fo
3fo
IIP3
–30 –20
–10
0
Pin – RF input power [dBm]
10
*
1: Pin = 24 dBm, 0/3 V control, V
DD
= 3.0 V, 900 MHz
*
2: Pin = 24 dBm (900 MHz) + 24 dBm (901 MHz),
0/3 V control, V
DD
= 3.0 V
s
Figure 3 CXG1115ER Representative Characteristics
NF – Noise figure [dB]
Gp – Power gain [dB]
4
18
4
Gc
12
11
ETC [ ETC ]
