ICE-GPS

2024-05-02T18:10:30Z

Njm2: Updated for GPSr3

<div class="description">GPS Timing Reference Module </div>
[[File:GPSr3_Front.jpeg|thumb]] [[File:GPSr3_Back.jpeg|thumb]]
The ICE-GPS is a GPS-driven, mixed-signal phase-lock loop, providing a 1 PPS output, an IRIG-B output, and generating a 10MHz sine output from an extremely low jitter voltage-controlled crystal oscillator (VCXO). The 10MHz output is disciplined from an onboard GPS receiver, which drives the long-term frequency stability. The onboard GPS receiver at the core of the ICE-GPS is the Conner Winfield CW25 timing receiver.

The board is formatted as an ICE I/O module for use with the [[ICE-PIC8]], [[ICE-POD]], [[ICE-PAC]], or [[ICE-TRAY]]. The antenna input is available on an SMA connector and will operate an active antenna at 5V. The 10MHz is available on an SMA connector, while 1PPS and IRIG-B are available on SMB connectors, each able to drive four 50 ohm loads.

The ICE-GPS communicates to the host computer through the base ICE card using C-callable library functions. These calls allow access to all NMEA/TSIP protocol information made available by the CW25 module. The user can observe the status of the unit, time of day, position, and current satellite quality/configuration information via either of the two protocols.

__TOC__
{{pagebreak}}

== Features == 

* Stratum 1 time source
* G.811-compliant
* Phase-locked 10MHZ output
* Low 10MHz phase noise (-76db@10Hz, -100dB@100Hz, -126dB@250Hz)
* Precision 1PPS output locked to 10MHz
* Commercial temperature (0-70C)
* SMA connector for GPS antenna input and 10MHZ clock output
* SMB connectors for 1PPS and IRIG-B outputs
* Single-site module for use with [[ICE-PIC8]] series cards and [[ICE-TRAY]] systems

== Applications ==

* Precision time and frequency reference

== Specifications ==

=== Input/Output Specifications ===

{| class="wikitable" style="width: 100%"
|-
! Parameter 
! Minimum
! Typical
! Maximum 
! Units
|-
| Analog Input 
| 
| 
| 
| dBm
|-
| Analog Input Impedance 
| 
| 50 
| 
| Ohms 
|-
| 10MHz Clock Output 
| .5 
| 1.0 
| 1.0 
| V p-p 
|-
| 1PPS Output 
| 0 
| 1.0 
| 3.3 
| V 
|-
| IRIG-B Output 
| 0 
| 1.0 
| 3.3 
| V 
|-
| Output Impedance 
| 12.5 
| 50 
| 
| Ohms 
|}
<div style="font-size:0.9em">
'''Notes:'''

# Outputs buffered to drive 1-4 50 ohm loads
</div>
{{pagebreak}}

=== Absolute Maximum Ratings ===

{| class="wikitable" style="width: 100%"
|-
! Parameter 
! Value
! Units
! Conditions
|-
| colspan="4" style="font-weight: bold" | Electrical
|-
| style="padding-left: 10px" | AVcc 
| 5.0 
| VDC 
| 
|-
| style="padding-left: 10px" | DVcc
| 3.3 
| VDC 
| 
|-
| style="padding-left: 10px; border-top: medium none" | Analog Input Power
| +10 
| dBm (50ohm ref) 
| 
|-
| style="padding-left: 10px; border-top: medium none" | Clock Output
| 0 to 5
| Vpeak into 50ohm 
| 
|-
| style="padding-left: 10px; border-top: medium none" | PPS Output 
| 0 to 5 
| Vpeak into 50ohm 
| 
|-
| style="padding-left: 10px; border-top: medium none" | IRIG-B Output 
| 0 to 5 
| Vpeak into 50ohm 
| 
|-
| colspan="4" style="font-weight: bold" | Environmental
|-
| style="padding-left: 10px" | Operating Temperature
| -10 to +65
| Degrees C
| 
|-
| style="padding-left: 10px" | Storage Temperature
| -40 to +85
| Degrees C
| 
|}

<div class="attention">
'''WARNING: Operation of this module beyond any of these parameters (temperature, voltage, and input power) may cause permanent damage. Exposure to absolute maximum ratings for extended periods may affect module reliability. Operation of the module beyond these specified parameters voids the factory warranty.'''
</div>

{{pagebreak}}



== Connectors ==

{| class="wikitable" style="nowrap" width="100%"
|-
! Connector 
! Manufacturer
! Part Number
! Description
! J-Number
|- style="border-bottom-style:hidden"
| '''Signal Connections''' 
|
|
|
|
|- style="border-bottom-style:hidden"
| style="padding-left:20px" | GPS Antenna In 
| Cinch 
| 142-0701-501
| Edge Mount SMA Connector
| J3 
|- style="border-bottom-style:hidden"
| style="padding-left:20px" | 10MHz Clock Output 
| Cinch 
| 142-0701-501
| Edge Mount SMA Connector
| J5 
|- style="border-bottom-style:hidden"
| style="padding-left:20px" | 1PPS Output 
| Cinch 
| 131-1701-371
| Edge Mount SMB Connector
| J6 
|- style="border-bottom-style:hidden"
| style="padding-left:20px" | IRIG-B Output 
| Cinch 
| 131-1701-371
| Edge Mount SMB Connector
| J7 
|- style="border-bottom-style:hidden"
| '''Board Connection''' 
|
|
|
|
|- style="border-bottom-style:hidden"
| style="padding-left:20px" | Data Connection 
| Samtec 
| QTE-020-03-F-D-A
| 40 Pin Connector
| J4 
|-
| style="padding-left:20px" | Power Connection 
| 3M 
| 929852-01-05-RA
| Standard 10-pin Header
| J2 
|- style="border-bottom-style:hidden"
| '''Physical Connection''' 
|
|
|
|
|-
| style="padding-left:20px" | Standoff (2 each) 
|
|
| style="vertical-align:top" | Physical Connection

|}

=== ICE Interface Cables ===

{| style="width:400px; padding-left:20px"
|-
| ICE-CAB-SMB5 (for J6, J7)
| 5 ft. BNC to SMB cable
|-
| ICE-CAB-SMA5 (for J3, J5)
| 5 ft. BNC to SMA cable
|}

=== Connectors Diagram ===
Note the connectors on the image below from top to bottom: GPS antenna in, CLK out, PPS out, IRIG-B out:

[[File:GPSr3_Back.jpeg|600px|center]]

{{pagebreak}}

== Status ==

{{Status|prod}}

 

== Datasheet ==

<ul style="list-style: none; margin-left: 0;">
<li><div class="plain-img">
[[File:pdf_icon_22x22.png|20px]] [https://downloads.ice-online.com/datasheets/ICE_GPSr3_Datasheet.pdf ICE_GPSr3_Datasheet.pdf]
</div></li>
</ul>

[[Category:Other modules|A1]]

File:GPSr3 Back.jpeg

2024-05-02T17:39:39Z

Njm2:

File:GPSr3 Front.jpeg

2024-05-02T17:38:59Z

Njm2:

ICE Enterprises - User contributions [en]

ICE-GPS

File:GPSr3 Back.jpeg

File:GPSr3 Front.jpeg