Open Timecard Mini - Precision Timing

Open Timecard Mini 2.0 - Precision Timing

The state-of-the-art module with <5ns accuracy to UTC and 5ppb holdover capability, combined with the full multi-band GNSS receiver and modern Clock Gen with 4x Frequency Outputs and 3x event time stampers. Perfect for 4G/5G/LTE & Broadcast implementations.

Why Open Timecard Mini 2.0?

Innovative Sandwich Boards

From high-precision timing for PTP/NTP Grandmaster clock solutions to high-precision location services for Industrial IoT and Automotive. The new mini 2.0 range has what you need.

Save space

The CM4 PCIe baseboard makes integrating your CM4 into existing devices such as PCs or servers easy, saving space and simplifying your workspace.

Full feature

The base board fully utilizes all the CM4 IO board features, including the 40-pin GPIO, 2 USB-C ports, a micro-HDMI port, an eMMC boot port, and a USB-A port.

CM5 Compatible

The Open Timecard Mini is now also compatible with the latest Raspberry Pi CM5 via 40Pin GPIO, providing a significant boost over its predecessor with 2-3 times faster processing speeds.

What's inside the Precision Timing?

General Features

• 1x ANT: u.fl IPEX-1 connector for connecting GNSS antenna input.
• 4x PPS OUT: u.fl IPEX-1 connectors
• 1x PPS IN : u.fl IPEX-1 connector 
• 3 x EVENT IN/OUT : u.fl IPEX-1 connectors
• 200 Pin top: Direct connection for the Raspberry Pi CM4 footprint

Ublox LEA-F9T

GNSS Features

184-channel U-blox F9 engine: 

• GPS L1C/A, L2C, L5 GLO L1OF GAL E1B/C, E5b, E5a BDS B1I, B1C, B2a QZSS L1C/A, L2C, L5 NavIC L5 SBAS L1C/A: WAAS, EGNOS, MSAS, GAGAN* Frequency Bands: L1 and L2
• Position Accuracy: 1.5 m CEP
• Timing Accuracy (1 PPS): <5ns (typical)

Time-to-First-Fix (TTFF):

• Cold Start: 26 seconds
• Reacquisition: 1 second

SiT5812 1.5us/24h mems OCXO

• Frequency Stability: Down to ±1 ppb (parts per billion) over temperature

Frequency Tuning:

• Supports fine frequency adjustments in steps as low as 1 ppt (parts per trillion)
• Digital control for precise frequency tuning and correction

Aging Stability:

• ±0.1 ppb/day

Performance

Holdover and Retrace:

• 1.5us/24 hours

Temperature-Compensated MEMS:

• MEMS technology with built-in temperature compensation for high accuracy across temperature ranges
• Stratum 3e Holdover: Supports holdover mode for telecom and network applications to meet Stratum 3e timing requirements

Renesas 8A34002E clock generator

Frequency and Output

•⁠  ⁠Output Frequency Range: 0.5 Hz to 1GHz (on request 1Hz default)

•⁠  ⁠Number of Outputs: Up to 7 programmable outputs (on request 1Hz default)

Frequency Tuning and Accuracy

•⁠  ⁠Tuning Resolution: below 1ps

For more information, please visit: Timebeat Open Timecard Mini 2.0