IQD IQCM-200 Ocxo specification Datasheet

OCXO Specification
IQCM-200
ISSUE 1; February 2016
Description
A GNSS disciplined OCXO incorporating sync to a 1pps input
and 1pps output. Compatible with GPS, GLONASS, BEIDOU
and GALILEO.
Holdover stability up to 1.5µs over 24hours, achieved using an
adaptive algorithm.
Internal parameters of the algorithm, including maintenance
alarms and message are available to the user via serial port.
Frequency stability better than 1E-12
Application Information (Reference Drawing):
Connect the 1PPS output of your GPS system to the
IQCM-200. A MCU can be used to monitor the working state of
the IQCM-200.
Working States (Reference Drawing):
Run1: Fast track. Adjust the OCXO 10MHz output frequency
quickly to track the 1PPS to 10MHz with 1PPS reference.
Run2: Slow track. Adjust the OCXO 10MHz output frequency
slowly when phase error is in the defined range.
Holdover: No 1PPS input present; an algorithm enables
adaptive modelling of the frequency stability of an OCXO with
reference to the GPS timing signal.
Free Run: Clock module powered up with no 1PPS input.
Note1: The IQCM-200 should be left powered and running for 7
days minimum before operation to allow for the OCXO's
internal drift to stabilise.
Note2: The adaptive module algorithm can be built after two
days operation with good GPS signal, however this data will be
lost at power down.
Note3: When State input (Pin 8) is set low the IQCM-200 will
operate in Holdover mode regardless of the 1PPS signal
condition.
Output Data Word Example:
$PDP,00,0,F,Q,-3095,32768.0000,32768.0000,000,000,00000.
0000,00000.0000,00000.0000,00000.0000,3-23,+000.0000,-00
00,www.iqdfp.com,1.1,2011-05-16*55
Outline (mm)
Workflow Diagram
(See table for full description)
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 26 Apr 16 10:45 using Model Data Sheet V1.2550
Email: [email protected]
Web: www.iqdfrequencyproducts.com
Page 1 of 5
OCXO Specification
IQCM-200
Frequency Parameters
10.0MHz
Frequency
10MHz RF Output Details, Pin 14:
HCMOS Compatible, 15pF load
(Sinewave 50Ω option available)
VoH: 2.7V min
VoL: 0.4V max
Rise and Fall time: 8ns max
Duty Cycle: 45/55% max
Accuracy (24-hour averaging when locked to 1PPS): ±1E-12
Short Term Stability (tested after power for 1hr ref to 25°C, 1s,
using PN9000 test equipment): 2E-11 max
Ageing (Vs and temperature constant, reference to T=25°C, Vs
= 5.0V and after 30 days operation): ±0.2ppb per day, ±10ppb
per year
24Hrs Holdover Capability
Reference 7 days powered on, 2 days GPS lock
Temperature varied <1°C/min within operating temperature
range
Total temperature change
ΔT<±2°C
Holdover capability
±1.5µs
Note: Other options availible on request
Electrical Parameters
5.0V ±5%
Supply Voltage
1PPS Reference Input, Pin 10 (15pF test condition):
Waveform: HCMOS
ViH: 2.7V min
ViL: 0.4V max
Pulse Width: 10us min
State Input, Pin 8 (<5mA load):
Lock: 2.7V min
Unlock: 0.5V max
Power Supply Details, Pin 3:
Supply Voltage: 5.0V ±5%
Current Consumption: 1.4A during warm up, 600mA steady
state @25°C
AC Ripple: 50mV pk-pk max, 10Hz to 1MHz
Operating Temperature Ranges
-10 to 70°C
Output Details
Output Compatability
HCMOS
1PPS Reference Output, Pin 12 (50Ω test condition):
Waveform: HCMOS
VoH: 2.7V min
VoL: 0.4V max
Pulse Width: 10µs min
Lock Status Indicator, Pin 5:
Module Locked: 2.7V min
Module Holdover: 0.4V max
Module Locked means Working State is = Run2
Serial interface (pin6 and pin7)
UART
VoL and ViL: 0.4V max
VoH and ViH: 2.7V min
Baud rate: 9600
Bits: 8
Paraty: N
Stop Bit: 1
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 26 Apr 16 10:45 using Model Data Sheet V1.2550
Email: [email protected]
Web: www.iqdfrequencyproducts.com
Page 2 of 5
OCXO Specification
IQCM-200
Noise Parameters
Phase Noise on 10MHz RF output signal (dBm/Hz)
Offset Typical Max
10Hz
-118
-113
100Hz -138
-133
1kHz
-148
-143
10kHz -150
-145
100kHz -150
-145
1MHz -150
-150
Environmental Parameters
Operating Temperature Range: -10 to 70°C
Storage Conditions:
Temperature: -55 to 105°C
Humidity: 30 to 80%
Shock: IEC68-2-27 Test Ea, severity 50A, 50G 11ms half
sinewave, 3 times in three mutually perpendicular axies
Vibration: IEC 68-2-06 Test Fc, 10G, 0.75mm acceleration,
10Hz to 500Hz, 3 times in three mutually perpendicular axies
Manufacturing Details
ESD Level:
ANSI/ESDA/JEDEC JS-001-2010; HBM Class 2; 2kV to 4kV
ANSI/ESDA/JEDEC JS-001-2010; Machine Model Class B
200V to 400V
Ordering Information
10MHz Output Compatability Options
HCMOS (Standard)
Sinewave
Operating Temperature Range Options
0 to 80°C
-10 to 70°C (Standard)
-20 to 75°C
Holdover Options ref 24hrs holdover period
Max error Max temp change
±1.5us
0 to 60°C
±3.0us
0 to 60°C
±8.0us
0 to 60°C
±1.5us
ΔT<±5°C
±3.0us
ΔT<±5°C
±8.0us
ΔT<±5°C
±1.5us
ΔT<±2°C
±3.0us
ΔT<±2°C
±8.0us
ΔT<±5°C
±1.5us
ΔT<±2°C (standard)
Holdover Options ref 12hrs holdover period
Max error Max temp change
±12.0us ΔT<±5°C
Holdover Options ref 8hrs holdover period
Max error Max temp change
±1.5us
ΔT<±5°C
±3.0us
ΔT<±5°C
±8.0us
ΔT<±5°C
±1.5us
ΔT<±2°C
±3.0us
ΔT<±2°C
±8.0us
ΔT<±2°C
For other combinations please contact our sales offices
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 26 Apr 16 10:45 using Model Data Sheet V1.2550
Email: [email protected]
Web: www.iqdfrequencyproducts.com
Page 3 of 5
OCXO Specification
IQCM-200
Compliance
RoHS Status (2011/65/EU)
REACh Status
MSL Rating (JDEC-STD-033):
Compliant
Compliant
Not Applicable
Packaging Details
Pack Style: Bulk
Pack Size: 1
Loose in bulk pack
Functional Block Diagram
Application Information
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 26 Apr 16 10:45 using Model Data Sheet V1.2550
Email: [email protected]
Web: www.iqdfrequencyproducts.com
Page 4 of 5
OCXO Specification
IQCM-200
Output Data Word (Format Key: c=Character, d=Numerical Digit, s=Sign)
Field NO.
Name
Format
Description
Length
0
$PDP
$ccc
Message ID, Protocal Header
4
1
No
dd
Message No
2
2
TxRxFlag
d
1
3
CStatus
c
4
TrackStatus
d
5
cPHDiff
sdddd
6
cPWM1
ddddd.dddd
7
cPWM2
ddddd.dddd
8
SYNCNT
ddd
Transmit and Receive Flag
(0=upper computer transmit,
1=upper computer receive)
Current Status (F=warm up,
L=lock, H=holdover)
Track status (Q= fast track, S =
slow track)
Current phase difference, 1 unit =
6.25ns
Current PWM1 (Voltage control
value1)
Current PWM2 (Voltage
Controlled Value 2), not used,
defult value =32769.000000
The synchornous times
9
HCNT
ddd
Power on hours count
3
10
HPAVG
ddddd.dddd
10
11
VCH1
ddddd.dddd
12
HPMOD
ddddd.dddd
The average of the PWM in the
last half hour
Voltage Controlled compensation
value every half hour
The Module PWM Value
13
VCM10
ddddd.dddd
10
14
POS
d-dd
15
inT
sdddd.ddd
Voltage controlled compensation
value every 10mins
The position of the product.
(Layer-No), just for the inner test.
NA
16
TcPHDiff
sdddd
The product current phase
difference
www.IQDFP.com
5
1
1
5
10
10
3
10
10
4
9
17
Website
18
Version
d.d
version
3
19
Date
dddd-dd-dd
Date
10
55
2
<CR><LF>
2
20
21
dd
END
13
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 26 Apr 16 10:45 using Model Data Sheet V1.2550
Email: [email protected]
Web: www.iqdfrequencyproducts.com
Page 5 of 5
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