Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch
Lowest Noise, Highest Linearity 1700MHz to 2200MHz Dual, SiGe Mixer for DCS/PCS, CDMA, WCDMA, and LTE Base Stations, Featuring Superior IIP3, NF, and 2RF-2LO Performance
The MAX19995 dual-channel downconverter provides 9dB of conversion gain, +24.8dBm input IP3, +13.3dBm 1dB input compression point, and a noise figure as low as 9dB for 1700MHz to 2200MHz diversity receiver applications. With an optimized LO frequency range of 1400MHz to 2000MHz, this mixer is ideal for low-side LO injection architectures. High-side LO injection is supported by the MAX19995A, which is pin-pin and functionally compatible with the MAX19995.
In addition to offering excellent linearity and noise performance, the MAX19995 also yields a high level of component integration. This device includes two double-balanced passive mixer cores, two LO buffers, a dual-input LO selectable switch, and a pair of differential IF output amplifiers. Integrated on-chip baluns allow for single-ended RF and LO inputs. The MAX19995 requires a nominal LO drive of 0dBm and a typical supply current of 297mA at VCC = 5.0V or 212mA at VCC = 3.3V.
The MAX19995/MAX19995A are pin compatible with the MAX19985/MAX19985A series of 700MHz to 1000MHz mixers and pin similar with the MAX19997A/MAX19999 series of 1800MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands.
The MAX19995 is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C.
Key Features
Applications/Uses
1700MHz to 2200MHz RF Frequency Range
1400MHz to 2000MHz LO Frequency Range
1750MHz to 2700MHz LO Frequency Range (MAX19995A)
50MHz to 500MHz IF Frequency Range
9dB Typical Conversion Gain
9dB Typical Noise Figure
+24.8dBm Typical Input IP3
+13.3dBm Typical Input 1dB Compression Point
79dBc Typical 2RF-2LO Spurious Rejection at PRF = -10dBm
Dual Channels Ideal for Diversity Receiver Applications
49dB Typical Channel-to-Channel Isolation
Low -3dBm to +3dBm LO Drive
Integrated LO Buffer
Internal RF and LO Baluns for Single-Ended Inputs
Built-In SPDT LO Switch with 56dB LO-to-LO Isolation and 50ns Switching Time
Pin Compatible with the MAX19985/MAX19985A/MAX19995A Series of 700MHz to 2200MHz Mixers
Pin Similar to the MAX19997A/MAX19999 Series of 1800MHz to 4000MHz Mixers
Single +5.0V or +3.3V Supply
External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode
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