Date: 17th Nov 09
2 GHz to 3GHz up/down converting
SiGe mixer for 3G base stations
The new MAX2042 Silicon Germanium (SiGe) passive mixer
from analog semiconductor IC expert Maxim operates in the
frequency range of 2000MHz to 3000MHz. By adding this new
member to its portfolio of SiGe mixers, Maxim broadens the
availability of mixer devices for wireless broadband systems
such as 3G, LTE, WiMAX, WCS, and MMDS wireless-infrastructure
applications. In downconverter configuration mode, this
IC delivers 36dBm of IIP3, 23.4dBm of IP1dB, 7.2dB of conversion
loss, and a 7.3dB noise figure. In upconverter mode MAX2402
delivers 32.4dBm of IIP3, 67dBc of LO ±2IF suppression,
and a conversion loss of 6.8dB.
MAX2042 attenuates 2nd- and 3rd-order spurious signals.
MAX2042 is tailored for use in RF frontend part of GHz range
wireless base-stations. Lesser the noise generated by the
front end RF key components such as LNA, mixers, and oscillators
more is the range covered by the wireless transceivers;
that's the highlight of this mixer component.
MAX2042 packs double-balanced mixer core with a local oscillator
(LO) amplifier, two baluns and other needy discrete components.
The improvements and features listed by Maxim for this
product are,
40% space saving on the PC board with reduction in discrete
device count. Better elimination of harmonics simplifies
filter requirements.
The IF bandwidth is in the range of 50MHz to 500MHz with
an 1.8GHz to 3GHz, low-side LO injection range.
The on-board 0dBm drive LO buffer with 0dBm drive offers
±3dB drive-variance control to ensure stable gain,
Noise Figure, and IIP3 performance over temperature, supply,
and input power variations.
The gain of MAX2042 varies by ±0.44dB over the industrial
temperature range of -40°C to +85°C and IIP3 varies
±0.5dB over the same temperature range.
Package: 5mm x 5mm, lead-free, 20-pin TQFN package
Price: Starts at $5.95 for 1k pieces
For more details visit www.maxim-ic.com
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