CHM1481-QFG Datasheet, PDF (5/10 Pages) United Monolithic Semiconductors – 6-9GHz Direct Quadrature Modulator

6-9GHz Direct Quadrature Modulator
CHM1481-QFG
Typical on Board Measurements
Tamb.= +25°C, VD1 = VD2 = VD3 = +4V, Idq = 100mA
USB versus RF Frequency
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
P_LO = 0dBm
-20
-21
-22
-23
-24
-25
-26
-27
-28
RF Output : USB
-29
-30
6
7
8
9
RF Frequency (GHz)
LSB Rejection versus RF Frequency
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
P_LO = 0dBm
40
35
30
25
20
15
10
5
LSB Rejection
0
6
7
8
9
RF Frequency (GHz)
LO leakage versus RF Frequency
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
P_LO = 0dBm
0
-5
LO leakage without cancalation
-10
-15
LO leakage with cancelation
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
6
7
8
9
RF Frequency (GHz)
LO leakage versus LO Input Power
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
P_LO = 0dBm
-10
6 GHz
-15
7 GHz
8 GHz
-20
9 GHz
-25
-30
-35
-40
-45
-50
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
LO Input Power (dBm)
USB versus LO Input Power
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
F_LO: [6 to 9 / 1] GHz
-24
-25
-26
-27
-28
6 GHz
7 GHz
-29
8 GHz
9 GHz
-30
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
LO Input Power (dBm)
DC Supply Current versus LO Input Power
F_BB = 10MHz / V_BBI = V_BBQ = 200mVpp
F_LO: [6 to 9 / 1] GHz
170
165
6 GHz
160
7 GHz
8 GHz
155
9 GHz
150
145
140
135
130
125
120
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
LO Input Power (dBm)
Ref. : DSCHM1481-QFG1356 - 22 Dec 11
5/10
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE
Tel.: [phone] - Fax: [phone]
Specifications subject to change without notice