Si4060/63 Low Current Transmitter

The Si406x devices are high-performance, low-current transmitters covering the sub-GHz frequency bands from 142 to 1050 MHz. The radios are part of the EZRadioPRO® family, which includes a complete line of transmitters, receivers and transceivers covering a wide range of applications. All parts offer extremely low active and standby current consumption. The Si406x includes optimal phase noise performance for narrow band applications, such as FCC Part90 and 169 MHz wireless M-Bus. The Si4063 offers exceptional output power of up to +20 dBm with outstanding TX efficiency. The high output power allows extended ranges and highly robust communication links. The Si4060 active mode TX current consumption of 18 mA at +10 dBm coupled with extremely low standby current and fast wake times ensure extended battery life in the most demanding applications.


  • Frequency range = 142–1050 MHz
  • Modulation
    • (G)FSK, 4(G)FSK, (G)MSK
    • OOK
  • Max output power
    • +20 dBm (Si4063)
    • +13 dBm (Si4060)
  • Ultra low current powerdown modes:30 nA shutdown, 40 nA standby
  • Data rate = 100 bps to 1 Mbps
  • Fast wake times
  • Power supply = 1.8 to 3.8 V
  • Highly configurable packet handler
  • TX 64 byte FIFO
  • Low battery detector
  • 20-pin QFN package



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Data Sheet (2)

Errata (1)

Si4x6xB1B-Si4438-B1C Errata
11081412/5/2014236 kB

User Guides (1)

EZRadioPRO Development Kit User's Guide
0.511/10/20141286 kB

Application Notes (16)

PCN (6)

Example Code

Please download the latest version of the Wireless Development Suite (WDS) software for all example codes. Example codes can be modified and deployed to the desired configuration within the WDS configuration tools.
Product Matrix
Part NumberDescriptionOutput Power Range (dBm)RX Current+11/+20 dBm TX Current+13 dBm TX CurrentPackage TypeFSK/GFSKOOKFrequency Range2/4.8 Sensitivity (dBm)Datasheet
Si4060TX-40 to +1318 mA/—25 mAQFN201000 kbps120 kbps142 - 1050 MHz—/—
Si4063TX-20 to +20—/85 mA31 mAQFN201000 kbps120 kbps142 - 1050 MHz—/—
    The Si4063 can achieve up to +27 dBm output power with built-in ramping control of a low-cost external FET. The devices are compliant with all worldwide regulatory standards: FCC, ETSI, and ARIB. All devices are designed to be compliant with 802.15.4g and WMbus smart metering standards.


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