Step Global, GPS Specialsts    
     
     
     
 
 Trimble Mini-T 

                                                                

 GPS Disciplined Clock Module                                                                       
 
Mini-T GPS Disciplined Clock Board

Key Features 
 

  • GPS circuitry on one board. Lower part count for reliability and lower cost
  • Ultra-Compact design for ease of engineering integration
  • Board form to avoid the need for rack mounting
  • High precision 1PPS output for timing pulse accuracy
  • Very stable GPS disciplined and ovenised oscillator for stability
  • Low phase noise for accuracy and stability.
  • Trimble Superpackets™ for easier data interpretation
  • Proven clock technology for reliability
  • T-RAIM for increased precision and reliability
  • RoHS compliance
                                         pdf data sheetMini-T Data Sheet  
                            pdf data sheetMini-T User Manual

Designed to Embed Precise Time and Frequency in your Application

The Trimble Mini-T™ takes GPS disciplined clocks to a new level of integration that provides a simple, cost effective and high performance solution in Trimble’s smallest form factor to date.

The Mini-T gives OEMs the opportunity to embed a low-cost precise time and frequency reference, in our smallest form-factor yet. Trimble created the Mini-T using clock technology proven in generations of deployed units used in CDMA, WLL, WiMAX, and broadcasting applications. It utilizes the latest in GPS technology, combined with a precision ovenized oscillator for near-atomic clock precision timing.

Ease of integration and use

The Mini-T eliminates the need for expensive rack-mount timing boards, because you can embed the Mini-T on your board to save space and power. Trimble integrates the GPS and timing circuitry all on a single board—no extra GPS daughter board means that Trimble offers a lower part count, resulting in higher reliability and lower cost.

On power-up, the Mini-T performs a self-survey automatically, and only one satellite is required for on-going operation. Timing Superpackets™ offer the user all of the timing information required by the host application, in an easy-to-use format.

The Trimble proprietary Time-Receiver Autonomous Integrity Monitoring (T-RAIM) carefully validates the satellite signals, ignoring inaccurate information that could interfere with the precision outputs.

Proven reliability

Trimble has deployed tens of thousands of GPS clocks into the field over the last decade, which continue to perform year after year. The Mini-T offers proven reliability and performance will exceed your expectations, and enable you to provide your customers with the highest quality GPS solution available today.

The Mini-T GPS Clock is offered with a standard 10MHz output, but it is also available in custom frequencies. A starter kit is also available for customer evaluations. .

Performance Specifications

General: L1 frequency, CA/code (SPS)
12 -channel continuous tracking receiver
Update rate: 1 Hz
1 PPS accuracy UTC 15 nanoseconds (1 Sigma without SA)
Output Frequency 10 MHz accuracy 1
Phase noise: 10 Hz –120 dBc/Hz
100 Hz –135 dBc/Hz
1 kHz –135 dBc/Hz
10 kHz –145 dBc/Hz
100 kHz –145 dBc/Hz
Holdover ±1 microsecond over 2 hours with a maximum ±15°C temperature change
Some customers, such as CDMA manufacturers, have historically mandated tighter holder requirements than specified on this datasheet.

Interface Specifications

1 PPS . . . . . . . . . . . . . . . . . Connector SMA-f (J3) TTL levels into 50 ohms. 10 microsecond-wide pulse with the leading edge synchronized to GPS within 20 nanoseconds (one sigma) in static, time-only mode.
Rising time: <20 nanoseconds
Pulse shape affected by distributed capacitance of interface cable/circuit.

10 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connector SMA-f (J2)  
Antenna Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SMA-f (J4)
Power and I/O. . . . . . . . . . . . . . Connector Molex 70543-0005 (6-pin) (J1)
Pin 1- NC
Pin 2- GPS TXD 3.3V CMOS Level
Pin 3- GPS RXD 3.3 V CMOS Level (5 V tolerant)
– Pulled to 3.3 V through a 10k Ohm resistor
Pin 4 – Ground
Pin 5 - +V Antenna – Supports 2.7 V DC to 5.5 V DC @ up to 100ma.
Pin 6 - +5 V± 0.25 V @ <750ma (cold) and <350ma (warm)
Serial Protocol . . . . . . . . . . . . Trimble Standard interface Protocol (TSIP)
binary protocol @ 9600, 8-None-1
Physical cHaracteristics
Mounting . . . . . . . . . . . . . . . . . . . .Four 0.130” diameter mounting holes

Environmental Specifications

Operating temp: 0°C to +60°C
Storage temp: –40°C to +85°C
Operating humidity: 95% non-condensing
Maximum altitude: 18,000 m

Physical Characteristics

Power consumption: 15 watts cold
10 watts steady state
Dimensions: 127mm x 102mm x 51mm
Mounting: Six mounting holes for #6-32 screws
Max. depth 3/8"
Weight: Under 20 oz. (567g)

Ordering Details

53110-15 Mini T (OCXO and connectors on the opposite side)
53110-05 Mini T (OCXO and connectors on the same side)
  Mini T Starter Kit
57860-10-00 GPS  Bullet III Antenna with an F Connector
57860-00 GPS Bullet III Antenna with a TNC Connector

 
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