Features
• Complete MICS-Band1 RF Telemetry Radio Solution
• Implantable Radio Module Designed to Enable Simple
Development of Implantable Medical Devices
• Implant-Grade Quality Assurance
• Integrated High-Performance Antenna Matching, SAW
Filter, and Antenna Tuning Circuitry
• Compact Design and Small Size Suitable for Implants
• Fully Shielded Package
• Integrated Reference Frequency Crystal and Decoupling
Capacitors
• Designed to Meet Regulatory Requirements (FDA, FCC,
ETSI, and IEC)

Description
The ZL70321 implantable radio module implements all RFrelated functions needed to deploy the implantable node in a
MICS-band 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 Ω). Figure 1 shows the module’s major functions:
• ZL70102-based MICS-band RF transceiver with an
integrated matching network, SAW filters for suppression of
unwanted blockers, and antenna tuning.
• 2.45-GHz wake-up receiver matching network.
• Integrated 24-MHz reference frequency crystal.
• Decoupling capacitors.

Applications
• Implantable Medical Devices
– Cardiac Rhythm Management
– Neurostimulators
– Drug Delivery, Sensors, and Diagnostics

Ordering Information
ZL70321MNJ 43-pad LGA
Please refer to "Package Overview" on page 4-6 for details.