3.5GHz Downconverter Mixers
with Selectable LO Doubler
Typical Operating Characteristics (continued)
(MAX2683/MAX2684 EV kit, VCC = +5V, RBIAS = 1.2kΩ, ENX2 = GND, fRF = 3.6GHz, PRF = -20dBm, fLOX2 = 1650MHz for MAX2683 or
fLOX2 = 1350MHz for MAX2684, PLO = -5dBm, all input/output ports terminated in 50Ω, IFOUT+ and IFOUT- matched to single-ended
50Ω load, TA = +25°C, unless otherwise noted.)
LOX1 S11 vs. RBIAS
(ENX2 = VCC)
MAX2683
LOX2 S11 vs. RBIAS
(ENX2 = GND)
820Ω
1.2kΩ
2kΩ
1.2kΩ,
2kΩ, 820Ω
MAX2683
IF PORT S11 vs. RBIAS
MAX2683
RFIN S11 vs. RBIAS
1.2kΩ,
2kΩ, 820kΩ
2kΩ,
1.2kΩ, 820kΩ
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