EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX41460 300MHz960MHz ASK and (G)FSK Transmitter with SPI Interface General Description Benefits and Features The MAX41460 is a UHF sub-GHz ISM/SRD transmitter Low Implementation Cost is designed to transmit On-Off Keying (OOK), Amplitude- Bits-to-RF Single-Wire Operation Shift Keying (ASK), Frequency-Shift Keying (FSK), and Low Bill-of-Materials (BoM) Gaussian (G)FSK (or 2GFSK) data in the 286MHz to Uses Single, Low-Cost, 16MHz Crystal 960MHz frequency range. It integrates a fractional phase- Small 3mm x 3mm MAX-10 Package locked-loop (PLL) so that a single, low-cost crystal can Increased Range, Data Rates, and Security be used to generate commonly used world-wide sub- Up to +16dBm PA Output Power GHz frequencies. The fast response time of the PLL al- Fast Frequency Switching for FHSS/DSSS lows for frequency-hopping, spread spectrum protocols Fast-On Oscillator: < 250s Startup Time for increased range and security. The only frequency-de- Up to 200kbps NRZ Data Rate pendent components required are for the external anten- Extend Battery Life with Low Supply Current na-matching network. < 8mA ASK Manchester Coded The crystal-based architecture of the MAX41460 pro- < 12mA (G)FSK or 2GFSK at 315MHz vides greater modulation depth, faster frequency set- Selectable Standby and Shutdown Modes tling, higher tolerance of the transmit frequency, and re- Auto Shutdown at < 20nA (typ) Current duced temperature dependence. Ease-of-Use The MAX41460 provides output power up to +13dBm into +1.8V to +3.6V Single-Supply Operation a 50 load while only drawing < 8mA for ASK (Man- Fully Programmable with SPI Interface 2 chester coded) and < 12mA for (G)FSK transmission at 400kHz/1MHz I C Versions Also Available 315MHz. The output load can be adjusted to increase Ordering Information appears at end of data sheet. power up to +16dBm, and a PA boost mode can be en- abled at frequencies above 850MHz to compensate for Simplified Block Diagram losses. The PA output power can also be controlled us- ing programmable register settings. DATA /SDI PA VDD CONTROL The MAX41460 features single-supply operation SCLK GND from +1.8V to +3.6V. The device has an auto-shutdown DATA CSB feature to extend battery life and a fast oscillator wake-up ACTIVITY DETECTOR on data activity detection. A serial programmable interface PAOUT PA make the MAX41460 compatible with almost any micro- controller or code-hopping generator. PAGND LOCK DETECT FRAC-N PLL The MAX41460 is available in a 10-pin MAX pack- age and is specified over the -40C to +105C extend- XTAL1 ed temperature range. The MAX41460 has an ESD rating CRYSTAL CLKOUT /16 OSCILLATOR /SDO XTAL2 of 2.5kV HBM. Applications Building Automation and Security Wireless Sensors and Alarms Remote and Passive Keyless Entry (RKE/PKE) Tire Pressure Monitoring Systems (TPMS) Automatic Meter Reading (AMR) Garage Door Openers (GDO) Radio Control Toys Internet of Things (IoT) 19-100393 Rev 2 3/19MAX41460 300MHz960MHz ASK and (G)FSK Transmitter with SPI Interface Absolute Maximum Ratings V to GND.............................................................. -0.3V to +4V Junction Temperature.......................................................+150C DD All Others Pins to GND...............................-0.3V to (V + 0.3)V Storage Temperature Range ..............................-60C to +150C DD Continuous Power Dissipation (T = +70C, derate 5.6mW/C Lead Temperature (reflow) ...............................................+300C A above +70C) ................................................................ 444.4mW Soldering Temperature (reflow) ........................................+260C Operating Temperature Range .......................... -40C to +105C 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. Package Information 10 MAX (similar to 10 TSSOP) Package Code U10+2 Outline Number 21-0061 Land Pattern Number 90-0330 Thermal Resistance, Single-Layer Board: Junction-to-Ambient ( ) 180C/W JA Junction-to-Case Thermal Resistance ( ) 36C/W JC Thermal Resistance, Four-Layer Board: Junction-to-Ambient ( ) 113.1C/W JA Junction-to-Case Thermal Resistance ( ) 36C/W JC For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/ thermal-tutorial. www.maximintegrated.com Maxim Integrated 2