EVALUATION KIT AVAILABLE MAX7058 315MHz/390MHz Dual-Frequency ASK Transmitter General Description Features The MAX7058 UHF transmitter alternately transmits ASK/ Switched 315MHz/390MHz Carrier Frequency Using OOK data at 315MHz or 390MHz using a single crystal. One Crystal The MAX7058 has internal tuning capacitors at the output +2.1V to +3.6V Single-Supply Operation of the power amplifier that can be programmed for match- ASK/OOK Modulation ing to the antenna or load. The MAX7058 can transmit Internal Switched Capacitors for Optimum Dual- at a data rate up to 100kbps NRZ (50kbps Manchester coded). Typical transmitted power into a 50 load is Frequency Operation +10dBm. The MAX7058 operates from +2.1V to +3.6V 8.0mA DC Current Drain (50% Duty Cycle OOK) and draws under 8.0mA of current. The standby current 0.8A Standby Current is less than 1A at room temperature. A 15MHz crystal Small 4mm x 4mm, 24-Pin Thin QFN Package is used as the reference for 315MHz and 390MHz oper- ation by selecting synthesizer-divide ratios of 21 and 26, respectively. The MAX7058 is available in a 4mm x 4mm, 24-pin thin Ordering Information QFN package and is specified to operate in the -40C to +125C automotive temperature range. PART TEMP RANGE PIN-PACKAGE 24 Thin QFN-EP* Applications MAX7058ATG+ -40C to +125C (4mm x 4mm) Garage Door Openers +Denotes a lead(Pb)-free/RoHS-compliant package. RF Remote Controls *EP = Exposed pad. Home Automation Wireless Sensors Security Systems Pin Configuration Functional Block Diagram TOP VIEW 24 23 22 21 20 19 24 23 22 21 20 19 N.C. 1 18 N.C. + CRYSTAL N.C. 1 18 N.C. OSCILLATOR DVDD 17 XTAL1 2 DVDD 2 17 XTAL1 FREQUENCY CHARGE PFD 21 OR 26 PUMP FSEL 3 16 XTAL2 MAX7058 XTAL2 FSEL 3 EXPOSED 16 CAP1 4 15 AVDD DIGITAL PADDLE LOOP VCO CONTROL (GND) FILTER CAP2 5 14 PAVDD CAP1 4 15 AVDD EP* N.C. 6 13 N.C. ENVELOPE SHAPING PA 7 8 9 10 11 12 CAP2 5 14 PAVDD MAX7058 N.C. 6 13 N.C. TQFN 7 8 9 10 11 12 *EP = EXPOSED PADDLE. 19-3206 Rev 1 7/14 N.C. N.C. CAP3 N.C. CAP4 DIN PAOUT ENABLE ROUT TOGGLE N.C. N.C. N.C. N.C. CAP3 N.C. DIN CAP4 PAOUT ENABLE ROUT TOGGLE N.C. N.C.MAX7058 315MHz/390MHz Dual-Frequency ASK Transmitter Absolute Maximum Ratings Supply Voltage, AVDD, DVDD, PAVDD to GND (Exposed Operating Temperature .................................... -40C to +125C Paddle) ................................................................-0.3V to +4V Storage Temperature ........................................ -65C to +150C All Other Pins ...............Exposed Paddle - 0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C DD Continuous Power Dissipation (T = +70C) A 24-Pin TQFN (derate 20.8mW/C above +70C) .....1666.7mW 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 (Typical Operating Circuit, 50 system impedance, V = V = V = +2.1V to +3.6V, f = 315MHz or 390MHz, AVDD DVDD PAVDD RF T = -40C to +125C, unless otherwise noted. Typical values are at V = V = V = +2.7V, T = +25C, unless otherwise A AVDD DVDD PAVDD A noted. All min and max values are 100% tested at T = +125C, and guaranteed by design and characterization over temperature, A unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS PAVDD, AVDD, and DVDD connected to Supply Voltage V 2.1 2.7 3.6 V DD power supply, V DD f = 315MHz 3.4 5.4 PA off, V at 0% duty RF DIN cycle f = 390MHz 3.8 6.3 RF f = 315MHz 8.0 13.7 V at 50%, duty cycle RF DIN Supply Current I mA DD (Notes 1, 2, 3) f = 390MHz 8.3 14.2 RF f = 315MHz 12.6 21.9 V at 100%, duty cycle RF DIN (Note 1) f = 390MHz 12.9 22.1 RF V < V T = +25C 0.8 ENABLE IL A Standby Current I (Note 3) T < +85C 1.0 4.0 A STDBY A T < +125C 6.2 16.1 A DIGITAL I/O 0.9 x Input High Threshold V V IH DV DD 0.1 x Input Low Threshold V V IL DV DD Pulldown Sink Current 13 A Maxim Integrated 2 www.maximintegrated.com