MAX9981
825MHz to 915MHz, Dual SiGe High-Linearity Active Mixer
Industry's First Dual SiGe Mixer Reduces Cost, Space, and Component Count for 2.5G and 3G BTS Designs
Part Details
- +27.3dBm Input IP3
- +13.6dBm Input 1dB Compression Point
- 825MHz to 915MHz RF Frequency Range
- 70MHz to 170MHz IF Frequency Range
- 725MHz to 1085MHz LO Frequency Range
- 2.1dB Conversion Gain
- 10.8dB Noise Figure
- 42dB Channel-to-Channel Isolation
- -5dBm to +5dBm LO Drive
- +5V Single-Supply Operation
- Built-In LO Switch with 52dB LO1 to LO2 Isolation
- ESD Protection
- Integrated RF and LO Baluns for Single-Ended Inputs
The MAX9981 dual high-linearity mixer integrates a local oscillator (LO) switch, LO buffer, LO splitter, and two active mixers. On-chip baluns allow for single-ended RF and LO inputs. The active mixers eliminate the need for an additional IF amplifier because the mixer provides a typical overall conversion gain of 2.1dB.
The MAX9981 active mixers are optimized to meet the demanding requirements of GSM850, GSM900, and CDMA850 base-station receivers. These mixers provide exceptional linearity with an input IP3 of greater than +27dBm. The integrated LO driver allows for a wide range of LO drive levels from -5dBm to +5dBm. In addition, the built-in high-isolation switch enables rapid LO selection of less than 250ns, as needed for GSM transceiver designs.
The MAX9981 is available in a 36-pin QFN package (6mm x 6mm) with an exposed paddle, and is specified over the -40°C to +85°C extended temperature range.
Applications
- Cellular cdmaOne™ and cdma2000® Base Station Receivers
- Digital and Spread-Spectrum Communication Systems
- GSM 850/GSM 900 2G and 2.5G EDGE Base Station Receivers
- Microwave Point-to-Point Links
- TDMA and Integrated Digital Enhanced Network (iDEN®) Base-Station Receivers
Documentation
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Product 1 | ||
| MAX9982 | 825MHz to 915MHz, SiGe High-Linearity Active Mixer | |
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