IF Receiver 28-Pin QSOP

The MAX2312 is IF receivers designed for dual-band, dual-mode, and single-mode N-CDMA and W-CDMA cellular phone systems. The signal path consists of a variable gain amplifier (VGA) and I/Q demodulator. The devices feature guaranteed +2.7V operation, a dynamic range of over 110dB, and high input IP3 (-33dBm at 35dB gain, 1.7dBm at -35dB). The synthesizer’s reference and RF dividers are fully programmable through a 3-wire serial bus, enabling dual-band system architectures using any common reference and IF frequency. The differential baseband outputs have enough bandwidth to suit both N-CDMA and W-CDMA systems, and offer saturated output levels of 2.7Vp-p at a low +2.75V supply voltage. Including the low-noise voltage-controlled oscillator (Vco) and synthesizer. The MAX2312 is available in 28-pin QSOP packages.

• Complete IF Subsystem Includes VCO and Synthesizer
• Supports Dual-Band, Triple Mode Operation
• VGA with >110dB Gain Control
• Quadrature Demodulator
• High Output Level (2.7V)
• Programmable Charge-Pump Current
• Supports Any IF Frequency Between 40MHz and 300MHz
• 3-Wire Programmable Interface
• Low Supply Voltage (+2.7V)
• 28 QSOP Package
• -40°C to +85°C Temperature