# MD-010 GPS Disciplined Oscillator Module

## Overview
The MD-010 is a GPS disciplined oscillator module providing 1 pps TTL, 10 MHz sine wave, and 10 MHz square wave outputs synchronized to an external 1pps reference. It utilizes a Vectron oscillator (TCXO, HPTC, EMXO, DAEM, OCXO, DAOC, or DOCX) for performance. Customizable options are available.

## Features
· GPS receiver embedded
· Standard outputs: 1pps TTL, 10 MHz sine wave, 10 MHz square wave
· Customizable output frequencies
· Serial communication interface
· Wide range of oscillator options for holdover requirements

## Applications
· 3G/LTE/WiMAX Basestations
· Digital Video Broadcast
· E911 Location Systems
· General Timing & Synchronization
· Military Radio

## Performance Characteristics (varies by model)
· Aging: Down to 0.1 ppb/day.
· Temperature Stability: Less than 0.2 ppb.
· Holdover Time: Varies by model (from minutes to 24 hours). Dependent on oscillator type and temperature change (ΔT).
· Warm-up Time: 5-18 minutes (model dependent).
· Power Supply: 5V or 12V.
· Phase Noise: -155 to -95 dBc/Hz (model dependent).

## Available Models
Models differ in oscillator type (TCXO, HPTC, EMXO, DAEM, OCXO, DAOC, DOCX) impacting holdover and stability. Key models include:
· MD-0100-DXJ-TCXO-10M0000000 (low holdover)
· MD-0104-BXJ-DOCX-10M0000000 (stringent holdover requirements)

## Pin Connections (16-pin)
· PPS In/Out
· RF Out (HCMOS/Sine Wave)
· Serial Communication (Rx, Tx)
· Power (Vcc, Ground)
· Lock Status, Module OK indicators
· Reset, Manual Holdover inputs

## Environmental
· Operating Temperature: Model dependent.
· Humidity: Up to 90%
· Storage Temperature: -55°C to +125°C

## Ordering Information
Part numbers define the module configuration (oscillator type, frequency, temperature range, voltage). Contact factory for custom options.