Features: · 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)Application · Single/Dual/Triple-Mode CDMA Handsets
· Globalstar Dual-Mode Handsets
· Wireless Data Links
· Tetra Direct-Conversion Receivers
· Wireless Local Loop (WLL)Pinout
SpecificationsVCC to GND..............................................................-0.3V, +6.0V
SHDN to GND..............................................-0.3V to (VCC + 0.3V)
STBY, BUFEN, MODE, EN, DATA,
CLK, DIVSEL ..............................................-0.3V to (VCC + 0.3V)
VGC to GND................-0.3V, the lesser of +4.2V or (VCC + 0.3V)
AC Signals TankH ±, TankL ±,
REF, FM ±, CDMA ± ....................................................1.0V peak
Digital Input Current SHDN, MODE, DIVSEL,
BUFEN, DATA, CLK, EN, STBY...........................................±10mA
Continuous Power Dissipation (TA = +70°C)
28-pin QSOP (derate 10mW/°C above TA = +70°C) .....800mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature.....................................................150°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ..........................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX2310/MAX2312/MAX2314/MAX2316 are 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).
Unlike similar devices, the MAX2310 family of receivers includes dual oscillators and synthesizers to form a self-contained IF subsystem. 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 MAX2310 draws only 26mA from a +2.75V supply in CDMA (differential IF) mode.
The MAX2310/MAX2312/MAX2314/MAX2316 are available in 28-pin QSOP packages.
MAX2310 Data Sheet
