Micrel MICRF219
The MICRF219 is a 300MHz to 450MHz super• –110dBm sensitivity at 1kbps with BER 10E-02 heterodyne, image-reject, RF receiver with Automatic • Supports data rates up to 10kbps at 433.92MHz Gain Control, OOK/ASK demodulator and analog RSSI • 25dB Image-Reject Mixer output. The device integrates Auto-Poll, Valid Bit-Check, • No IF Filter Required Squelch and Desense features. It only requires a crystal • 60dB Analog RSSI Output and a minimum number of external components to implement.| Part No. | MICRF219 |
|---|---|
| Datasheet | MICRF219 Download |
| Manufacturer |  Micrel |
| Description | 300MHz to 450MHz ASK Receiver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
It is ideal for low-cost, low-power, RKE,● 3.0V to 3.6V Supply Voltage Range TPMS, and remote actuation applications.
● 4.0mA supply current at 315MHz (continuous receive) The MICRF219 achieves -110dBm sensitivity at a data
● 6.0mA supply current at 434MHz (continuous receive) rate of 1kbps (Manchester encoded). Four demodulator
● 0.5uA supply current in Shutdown Mode filter bandwidths are selectable in binary steps from
● Optional Auto-Polling (sleep mode, current < 0.1mA) 1625Hz to 13kHz at 433MHz, allowing the device to support data rates to 10kbps. The device operates from
● Optional Valid Bit-Check in Auto-Poll Mode a supply voltage of 3.0V to 3.6V, and consumes 4.0mA
● Optional Programmable 6dB to 42dB Desense of supply current at 315MHz and 6.0mA at 433.92MHz.
● Optional Data Output Squelch until valid bits detected A shutdown mode reduces supply current to 0.5uA. The
● 16-pin QSOP Package (4.9mm x 6.0mm) Auto-Polling feature allows the MICRF219 to sleep and poll for user defined periods, thus further reducing
● -40˚C to +105˚C Temperature Range supply current.
