MAX2306/MAX2308/MAX2309 19-2014 Rev 3 8/04 CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer General Description Features The MAX2306/MAX2308/MAX2309 are IF receivers Complete IF Subsystem Includes VCO and designed for dual-band, dual-mode, and single-mode Synthesizer N-CDMA and W-CDMA cellular phone systems. The Supports Dual-Band, Triple-Mode Operation signal path consists of a variable-gain amplifier (VGA) and I/Q demodulator. The devices feature guaranteed VGA with >110dB Gain Control +2.7V operation, a gain control range of over 110dB, Quadrature Demodulator and high input IP3 (-31dBm at 35dB gain, 3.4dBm at -35dB gain). High Output Level (2.7V) Unlike similar devices, the MAX2306 family of receivers Programmable Charge-Pump Current includes dual oscillators and synthesizers to form a self-contained IF subsystem. The synthesizers refer- Supports Any IF Frequency Between 40MHz and ence and RF dividers are fully programmable through a 300MHz 3-wire serial bus, enabling dual-band system architec- 3-Wire Programmable Interface tures using any common reference and IF frequency. The differential baseband outputs have enough band- Low Supply Voltage (+2.7V) width 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-con- Ordering Information trolled oscillator (VCO) and synthesizer, the MAX2306 draws only 26mA from a +2.75V supply in CDMA (dif- PART TEMP RANGE PIN-PACKAGE ferential IF) mode. MAX2306EGI -40C to +85C 28 QFN-EP* The MAX2306/MAX2308/MAX2309 are available in 28- MAX2306ETI -40C to +85C 28 TQFN-EP* pin Thin QFN and QFN packages. MAX2308EGI -40C to +85C 28 QFN-EP* Applications MAX2308ETI -40C to +85C 28 TQFN-EP* Single/Dual/Triple-Mode CDMA Handsets MAX2309EGI -40C to +85C 28 QFN-EP* Globalstar Dual-Mode Handsets MAX2309ETI -40C to +85C 28 TQFN-EP* Wireless Data Links *Exposed paddle W-CDMA Handsets Wireless Local Loop (WLL) Pin Configurations appear at end of data sheet. Block Diagram appears at end of data sheet. Selector Guide PART MODE DESCRIPTION INPUT RANGE AMPS, Dual Band, Triple Mode with Two MAX2306 Cellular CDMA, 40MHz to 300MHz IF VCOs PCS CDMA AMPS, Dual Band, Triple Mode with Common Cellular CDMA, MAX2308 70MHz to 300MHz IF VCO PCS CDMA External AMPS, Dual Band, Triple Mode (Drives External MAX2309 Cellular CDMA, 70MHz to 300MHz AMPS Discriminator) PCS CDMA Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLECDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +6.0V CC Digital Input Current SHDN, MODE, DIVSEL, SHDN to GND.............................................-0.3V to (V + 0.3V) CC BUFEN, DATA, CLK, EN, STBY.....................................10mA STBY, BUFEN, MODE, EN, DATA, Continuous Power Dissipation (T = +70C) A CLK, DIVSEL ...........................................-0.3V to (V + 0.3V) CC 28-Pin QFN (derate 28.5mW/C above T = +70C)...........2W A VGC to GND...............-0.3V, the lesser of +4.2V or (V + 0.3V) Operating Temperature Range ...........................-40C to +85C CC AC Signals TANKH , TANKL , Junction Temperature......................................................+150C REF, FM , CDMA .................................................1.0V peak Storage Temperature Range .............................-65C to +160C Lead Temperature (soldering, 10s) .................................+300C 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. DC ELECTRICAL CHARACTERISTICS (V = +2.7V to +3.6V, MODE = DIVSEL = SHDN = STBY = BUFEN = high, differential output load = 10k , T = -40C to +85C, CC A registers set to default power-up settings. Typical values are at V = +2.75V and T = +25C, unless otherwise noted.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS T = +25C 25.9 37.5 A CDMA mode T = -40C to +85C 41.5 A T = +25C 25.4 36.7 A FM IQ mode T = -40C to +85C 40.6 A T = +25C 24.7 35.7 A FM I mode Supply Current I T = -40C to +85C 39.5 mA CC A (Note 1) T = +25C 12.3 18.8 A STANDBY (VCO H) T = -40C to +85C 20.7 A T = +25C 11.4 18.4 A STANDBY (VCO L) T = -40C to +85C 20.3 A Addition for LO out (BUFEN = low) 3.5 Shutdown Current I SHDN = low 1.5 10 A CC Register Shutdown Current I 4 5.8 mA CC Logic High 2.0 V Logic Low 0.5 V Logic High Input Current I 2A IH Logic Low Input Current I 2A IL VGC Control Input Current 0.5V < V < 2.3V -5 5 A VGC VGC Control Input Current SHDN = low 1 A During Shutdown Lock Indicator High (locked) 47k load 2.0 V Lock Indicator Low (unlocked) 47k load 0.5 V DC Offset Voltage I+ to I- and Q+ to Q-, PLL locked -20 1.5 +20 mV Common-Mode Output Voltage V = +2.75V V - 1.4 V CC CC 2 MAX2306/MAX2308/MAX2309