Features: ·Complete 2.4GHz FSK Transceiver - High data rate (1.5Mbps) - -90dBm sensitivity (DSSS modulation) - 3dBm Output Power (differential, typical)
·Closed Loop TX Modulation
·Low IF Receiver: No external IF filters required.
·Fully Integrated frequency synthesizer: - No external resonator required.
·Sigma-Delta Fractional-N two-port modulator
·Automatic Filter Alignment - No manufacturing adjustments required.
·No external data slicer components required
·Control outputs correctly sequence and control PA
·3-wire control interface
·Analog RSSI output
Application·2.4GHz FSK Data Transceivers - Digital Cordless Telephones - Wireless PC Peripherals - Wireless Game Controllers - Wireless Streaming MediaPinout
SpecificationsAbsolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute aximum ratings are stress ratings only and functional device operation is not implied.
VCCA, VDD...............................................................................................................................................................5.5 V
Junction Temperature.............................................................................................................................................150Storage Temperature Range......................................................................................................................-65 to 150Lead Temperature (Soldering, 10s).........................................................................................................................260
DescriptionThe ML2724 is a fully integrated 1.5Mbps frequency shift keyed (FSK) transceiver that operates in the nlicensed .4GHz ISM frequency band. The ML2724 has been optimized for digital cordless telephone applications and includes all he frequency generation, receive and transmit functions. Automatically adjusted filters eliminate mechanical tuning. losed loop modulation eliminates frequency drift and permits practically unlimited TX duration. The transmitter enerates a 3dBm FSK output signal.
The 1.5Mbps data rate of ML2724 permits data spreading, such as Direct Sequence Spread Spectrum (DSSS) modulation, which mproves range. The dual conversion Low-IF receiver has all of the sensitivity and selectivity advantages of a raditional super-heterodyne without requiring costly, bulky external filters, while providing the integration advantages of direct conversion.
The phase locked loop (PLL) synthesizer is completely integrated, including the voltage controlled oscillator (VCO), uning circuits, and VCO resonator. This allows the ML2724 to be used in frequency hopped spread spectrum (FHSS) pplications.
The ML2724 contains internal voltage regulation. It also contains PLL and transmitter configuration registers. The evice can be placed in a low power standby mode for current sensitive applications. It is packaged in a 32TQFP.
ML2724 Data Sheet
