HARDWARE / PRODUCTAdded 2 Jul 2026

DMSS 3990 Endpoint SoC

Totum Labs
DMSS 3990 Endpoint SoC

Fully integrated Low Power Sensor-to-Satellite (LP-S2S) System-on-Chip enabling direct-to-satellite IoT connectivity, including indoors, with 10+ year battery life.

Typed specifications2 values

Discloses 1 of 13 fields engineers filter by in this category (category median 5).

Frequency range
2 400 MHz
description
RX sensitivity
-143 dBm
Effective · description

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier15 lines, in the manufacturer's own wording
Soc supplier
Orca Systems, Inc.
Process node
22 nm (GlobalFoundries 22DFX)
Package
8x8 mm QFN chip package; stamp-sized modem footprint
Frequency band
Unlicensed 2.4 GHz ISM band (single global SKU)
Effective sensitivity
-143 dBm
Link margin
20 dB excess link margin for indoor/interior penetration
Location accuracy
~20 m outdoor; building-level accuracy indoors (multilateration, no GPS/GNSS needed)
Battery life
10+ years
Network capacity
24,000 simultaneous transmissions per satellite; millions of devices supported per satellite
Spectrum capacity
24 MHz
Integrated components
DMSS direct-to-satellite modem, RF transceiver incl. PA, dedicated applications processor and memory, power management subsystem
Security
AES 128-bit (CCM) encryption/decryption, MAC ID authentication, secure key storage, eFUSE provisioning lockout
Device-to-cloud latency
10-15 minutes
Constellation (initial)
28 x 6U cubesat satellites
Connectivity model
Bidirectional, downlink multicast, ACK-based reliable delivery, no roaming agreements, no SIM required

About

The DMSS 3990 is Totum Labs’ massively integrated endpoint System-on-Chip — a ‘tracker-on-a-chip’ that combines the Totum DMSS direct-to-satellite modem, RF transceiver (including power amplifier), a dedicated applications processor and memory, and a power-management subsystem in a single 8x8mm QFN package. Co-developed and manufactured with Orca Systems on a 22nm Global Foundries process, the chip connects sensors and trackers directly to Totum’s Low Earth Orbit nanosatellite constellation over the unlicensed 2.4 GHz ISM band, without gateways, SIM cards, or external antennas. It supports building-level indoor connectivity via multilateration-based positioning (no GNSS receiver required) and is designed for sub-$10 tracker bill-of-materials when combined with sensors, battery and enclosure. Security is handled via AES CCM encryption, secure key storage, and eFUSE-based provisioning lockout.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: totum.global ↗

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