37-40GHz Integrated Down Converter
Typical Board Measurements
CHR3894-QEG
Tamb.= +25°C, VD = VD1 = +4V, VGL = -0.1V, VGX = -0.9V, P_LO = 0dBm (IDt = 250mA)
Image rejection versus RF frequency at IF 2GHz (USB & LSB modes)
without attenuation: GC= -2V
44
40
36
32
Image rejection (dBc)
28
24
20
16
12
8
USB
LSB
4
0
35
36
37
38
RF Frequency (GHz)
39
40
41
Return Losses (LO & RF) versus frequency and gain control voltage
0
-2
-4
LO & RF Return losses (dB)
-6
-8
-10
-12
-14
-16
-18
-20
0
5
10
15
20
25
30
35
40
45
RF @ GC=-2V
RF @ GC=0.6V
LO
Frequency (GHz)
Ref. : DSCHR3894-QEG2201 -19 jul 12
7/14
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
