LTC5549
2GHz to 14GHz Microwave
Mixer with Integrated
LO Frequency Doubler
Description
Features
Upconversion or Downconversion
nn High IIP3: +28.2dBm at 5.8GHz
+22.8dBm at 12GHz
nn 8.0dB Conversion Loss at 5.8GHz
nn +14.3dBm Input P1dB at 5.8GHz
nn Integrated LO Buffer: 0dBm LO Drive
nn Bypassable Integrated LO Frequency Doubler
nn Low LO-RF Leakage: 9
dB
LO Input Return Loss
ZO = 50Ω, 1GHz to 12GHz
>10
dB
IF Return Loss
ZO = 50Ω, 0.7GHz to 6GHz
LO Input Power
X2 = Low
X2 = High
>10
–6
–6
0
0
dB
6
3
dBm
dBm
Downmixer Application with LO Doubler Off (X2 = Low)
7.8
8.0
9.4
10.8
dB
dB
dB
dB
0.009
dB/°C
RF Input = 2GHz, LO = 3.89GHz
RF Input = 5.8GHz, LO = 3.91GHz
RF Input = 9GHz, LO = 7.11GHz
RF Input = 12GHz, LO = 10.11GHz
26.0
28.2
24.4
22.8
dBm
dBm
dBm
dBm
SSB Noise Figure
RF Input = 2GHz, LO = 3.89GHz
RF Input = 5.8GHz, LO = 3.91GHz
RF Input = 8.5GHz, LO = 6.61GHz
RF Input = 10GHz, LO = 8.11GHz
7.9
8.1
10.2
10.4
dB
dB
dB
dB
LO to RF Leakage
fLO = 1GHz to 12GHz
35
dB
Input 1dB Compression
RF Input = 5.8GHz, LO = 3.91GHz
14.3
dBm
8.2
9.9
11.9
dB
dB
dB
0.009
dB/°C
Conversion Loss
RF Input = 2GHz, LO = 3.89GHz
RF Input = 5.8GHz, LO = 3.91GHz
RF Input = 9GHz, LO = 7.11GHz
RF Input = 12GHz, LO = 10.11GHz
Conversion Loss vs Temperature
TC = –40°C to 105°C, RF Input = 5.8GHz
2-Tone Input 3rd Order Intercept
(ΔfRF = 2MHz)
l
Downmixer Application with LO Doubler On (X2 = High)
Conversion Loss
RF Input = 5.8GHz, LO = 1.955GHz
RF Input = 9GHz, LO = 3.555GHz
RF Input = 12GHz, LO = 5.055GHz
Conversion Loss vs. Temperature
TC = –40°C to 105°C, RF Input = 5.8GHz
2-Tone Input 3rd Order Intercept
(ΔfRF = 2MHz)
RF Input = 5.8GHz, LO = 1.955GHz
RF Input = 9GHz, LO = 3.555GHz
RF Input = 12GHz, LO = 5.055GHz
27.9
24.8
22.0
dBm
dBm
dBm
SSB Noise Figure
RF Input = 5.8GHz, LO = 1.955GHz
RF Input = 8.5GHz, LO = 3.305GHz
RF Input = 10GHz, LO = 4.055GHz
9.6
10.7
12.6
dB
dB
dB
LO to RF Input Leakage
fLO = 1GHz to 5GHz
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