Implantable RF module is only 5.5×4.5×1.5mm
Both modules are based on Microsemi’s ultralow power (ULP) ZL70103 radio transceiver chip, which supports a very high data rate radio frequency (RF) link for medical implantable communication applications.
The ZL70323 implantable module implements all RF-related functions needed to deploy the implant node in a Medical Implantable Communications Service (MICS) RF telemetry system. The integrated antenna tuning circuit allows the module to be used with a wide range of implantable antennas (nominal antenna impedance is 100+j150 ohms).
The module includes the ZL70103-based MICS-band RF transceiver with integrated matching network, surface acoustic wave (SAW) filter for suppression of unwanted blockers, and antenna tuning; a 2.45GHz wake-up receiver matching network; an integrated 24MHz reference frequency crystal; and decoupling capacitors and series termination resistors. The device operates in the 402–405 MHz MICS band. Multiple low power wake-up options are supported including using an ULP 2.45 GHz industrial, scientific and medical (ISM) band wake-up receive option. The ZL70103 consumes less than 6mA when transmitting or receiving and consumes only 290nA when in a periodic sleep/sniff mode (1 second sniff interval).
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