UPC8125GR Datasheet, PDF (3/5 Pages) NEC – UP-CONVERTER WITH AGC FUNCTION QUADRATURE MODULATOR IC FOR DIGITAL MOBILE COMMUNICATION SYSTEMS

TYPICAL PERFORMANCE CURVES (TA = 25°C)
RF OUTPUT POWER vs.
LO1 INPUT POWER
0
0
PRFout
-10
-10
-20
-20
-30
-30
ImR
-40
-40
IMSI/Q
-50
LoL
-50
-60
-60
-70
-70
-20
-10
0
LO1 Input Power, PLO1IN (dBm)
ERROR VECTOR MAGNITUDE,
AMPLITUDE ERROR, PHASE ERROR,
AND I/Q OFFSET vs. AGC VOLTAGE
10
8
-30
6
EVM
-40
4
I/2 offset
∆A
2
-50
∆φ
0
0
1
2
-60
3
AGC Voltage, VAGC (V)
RF OUTPUT vs. AGC VOLTAGE
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5
AGC Voltage, VAGC (V)
UPC8125GR
RF OUTPUT POWER vs.
LO2 INPUT POWER
0
-10
VAGC = 3.0 V
-20
-30
-40
VAGC = 1.2 V
-50
-60
-70
-30
-20
-10
0
LO2 Input Power, PLO2IN (dBm)
ERROR VECTOR MAGNITUDE,
AMPLITUDE ERROR, PHASE ERROR,
AND I/Q OFFSET vs. LO1 INPUT POWER
10
-20
8
-30
6
EVM
-40
4
I/Q offset
∆A
2
∆φ
-50
0
-60
-20
-10
0
LO1 Input Power, PLO1IN (dBm)
TYPICAL OUTPUT SPECTRUM
0
-10
-20
IM3I/Q
-30 _{-48.5 dBc}
-40
ImR
-32.7 dBc
LoL
-48.3 dBc
-50
-60
-70
-80
-90
Frequency, f (MHz)