Product Details
To optimize cellular-band dynamic range at minimum current, the MAX2323/MAX2325 implement four LNA states: high gain/high linearity, high gain/low linearity, midgain, and low gain. In high-gain/high-linearity mode, the adjustable high-intercept LNA minimizes desensitization in the presence of a large interfering signal. For the other gain states, the LNA current is reduced to improve standby time.
The CDMA mixers are designed for high linearity, low noise, and differential IF outputs, while the FM mixer is designed for lower current and single-ended output. Each band is implemented with a separate mixer to optimize performance for the specific band.
The MAX2323/MAX2325 can also be used in TDMA, EDGE, and W-CDMA phones.
Key Features
- 2.7V Operation
- Dual Band, Triple Mode
- Three LNA Gain Settings (Cellular)
- Two LNA Gain Settings (PCS)
- 18mA in Low-Gain Mode
- 19.5mA in Paging and Midgain Mode
- 26.5mA in High-Gain, High-Linearity Mode
- 16.5mA in FM Mode, High-Gain, Low-Linearity Mode
- 2.5dB (typ) Cascade Noise Figure
- Adjustable LNA IIP3, +5dBm to +13dBm
- Ultra-Small 28-Pin Package (5mm x 5mm)
Applications/Uses
- Dual-Band, Triple-Mode PCS/Cellular Phones
- Dual-Mode Cellular Phones
Technical Docs
Data Sheet | Triple/Dual-Mode CDMA LNA/Mixers | May 10, 2002 | |
Tutorial | General Layout Guidelines for RF and Mixed-Signal PCBs | ||
App Note | Silicon Germanium (SiGe) Technology Enhances Radio Front-End Performance | ||
Reference Schematic | REP012: Cellular LNA Achieves +20dBm IIP3 in Low-Gain High-Linearity Mode | ||
Reference Schematic | REP019: Tuned Dual-Band Front-End CDMA IC with Single 110MHz IF | ||
Reference Schematic | REP020: Dual-Band Dual-Mode FE IC with Common 210MHz IF | ||
Reference Schematic | REP021: Front end for 2.5GHz GlobalStar +IS-95 | ||
Reference Schematic | REP018: Dual-Band Dual-Mode Front-End IC with Common 183.6MHz IF | ||
Reference Schematic | REP003: Cellular Front-End IC in Automobile Application | ||
Reference Schematic | REP008: Dual-Band Front-End IC Tuned for CDMA, PCS, and AMPS at a Common 85MHz Low IF | ||
App Note | Triple/Dual/Single Mode CDMA LNA/Mixers Receiver System Requirements |
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Support & Training
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Parameters
Key Features
- 2.7V Operation
- Dual Band, Triple Mode
- Three LNA Gain Settings (Cellular)
- Two LNA Gain Settings (PCS)
- 18mA in Low-Gain Mode
- 19.5mA in Paging and Midgain Mode
- 26.5mA in High-Gain, High-Linearity Mode
- 16.5mA in FM Mode, High-Gain, Low-Linearity Mode
- 2.5dB (typ) Cascade Noise Figure
- Adjustable LNA IIP3, +5dBm to +13dBm
- Ultra-Small 28-Pin Package (5mm x 5mm)
Applications/Uses
- Dual-Band, Triple-Mode PCS/Cellular Phones
- Dual-Mode Cellular Phones
Description
To optimize cellular-band dynamic range at minimum current, the MAX2323/MAX2325 implement four LNA states: high gain/high linearity, high gain/low linearity, midgain, and low gain. In high-gain/high-linearity mode, the adjustable high-intercept LNA minimizes desensitization in the presence of a large interfering signal. For the other gain states, the LNA current is reduced to improve standby time.
The CDMA mixers are designed for high linearity, low noise, and differential IF outputs, while the FM mixer is designed for lower current and single-ended output. Each band is implemented with a separate mixer to optimize performance for the specific band.
The MAX2323/MAX2325 can also be used in TDMA, EDGE, and W-CDMA phones.
Technical Docs
Data Sheet | Triple/Dual-Mode CDMA LNA/Mixers | May 10, 2002 | |
Tutorial | General Layout Guidelines for RF and Mixed-Signal PCBs | ||
App Note | Silicon Germanium (SiGe) Technology Enhances Radio Front-End Performance | ||
Reference Schematic | REP012: Cellular LNA Achieves +20dBm IIP3 in Low-Gain High-Linearity Mode | ||
Reference Schematic | REP019: Tuned Dual-Band Front-End CDMA IC with Single 110MHz IF | ||
Reference Schematic | REP020: Dual-Band Dual-Mode FE IC with Common 210MHz IF | ||
Reference Schematic | REP021: Front end for 2.5GHz GlobalStar +IS-95 | ||
Reference Schematic | REP018: Dual-Band Dual-Mode Front-End IC with Common 183.6MHz IF | ||
Reference Schematic | REP003: Cellular Front-End IC in Automobile Application | ||
Reference Schematic | REP008: Dual-Band Front-End IC Tuned for CDMA, PCS, and AMPS at a Common 85MHz Low IF | ||
App Note | Triple/Dual/Single Mode CDMA LNA/Mixers Receiver System Requirements |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal