GPS Disciplined Oscillator Module
Former Model C6350
MD-011
-
MD
1
01
MD-011
The MD011 is a Vectron standard platform module that provides 1 pps TTL,10 MHz sine wave and 10 MHz square wave outputs that are
disciplined to an embedded 12 channel GPS Receiver. In addition, an external 1pps input can override the internal receiver as the primary
reference. Internal to the module is a Vectron oscillator, ranging from a TCXO to a double oven OCXO, dependent upon performance
requirements. Internal oscillators are capable of achieving an aging rate less as high as than 0.1ppb/day and stability over the operating
temperature range of less than 0.2ppb. In addition to the 7 standard models included in this data sheet, due to Vectron’s extensive portfolio of
oscillators and a firmware driven architecture, Vectron can customize a solution for your specific application.
Features
• Embedded GPS Receiver
• 1pps TTL output signals standard
• 10MHz sinewave and square wave outputs standard
• Other output frequencies available
• Embedded oscillator dependent upon holdover requirements
• Serial communications interface standard
Applications
• 3G Basestations (WCDMA, CDMA2000)
• LTE
• WiMAX Basestations
• Digital Video Broadcast
• E911 Location Systems
• General Timing and Synchronization
• Military Radio
Block Diagram
Manual
Holdover
Hardware
Reset
Serial
Communications
Interface
Output Locked
Module OK
Antenna
Input
GPS
Receiver
Processor/
Controller
Output
Frequency
Generation
1PPS
Output
1PPS Input
(Optional - other
input options
available)
RF Output
(10 MHz standard
- other frequencies
available)
Quartz Oscillator
(OCXO or TCXO)
Figure 1.
Functional Block Diagram
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Summary Specifications
Comparitive Performance of Standard Modules
Model
MD-0110-DXJ-TCXO-10M0000000
MD-0112-DXJ-HPTC-10M0000000
MD-0111-DXJ-EMXO-10M0000000
MD-0111-DXJ-DAEM-10M0000000
MD-0113-BXJ-OCXO-10M0000000
MD-0113-BXJ-DAOC-10M0000000
MD-0114-BXJ-DOCX-10M0000000
Embedded Oscillator
TCXO
High Precision TCXO
EMXO
Digitally Assisted EMXO
OCXO
Digitally Assisted OCXO
Double Oven OCXO
10 min
DT=
2
o
C
4.9
1.5
2.5
0.4
0.14
0.05
0.05
Warm
Up Time
(min-
utes)
5
5
10
10
18
18
18
Aging /
day
(ppb)
1
Temper-
ature
Stability
(ppb)
2
280
50
75
10
4
0.2
0.2
Typical Uses
Applications requiring a GPS disciplined clock with little or no hold over
Applications requiring 1 hour hold over on the order of 10 us
Applications requiring 8 hour hold over on the order of 100 us
Application requiring 8 hour hold over of 100us over extended tempera-
ture ranges
Applications requiring 8 hour hold over of 50 us over extended tempera-
ture ranges
Applications requiring 24 hour hold over on the order of 20 us
Applications with stringent hold over requirements, 8.6 us over 24 hour
Hold Over Performance (detailed performance on page 5)
1
Hold Over Time
Hold Over
Temperature Change
Model
MD-0110-DXJ-TCXO-10M0000000
MD-0112-DXJ-HPTC-10M0000000
MD-0111-DXJ-EMXO-10M0000000
MD-0111-DXJ-DAEM-10M0000000
MD-0113-BXJ-OCXO-10M0000000
MD-0113-BXJ-DAOC-10M0000000
MD-0114-BXJ-DOCX-10M0000000
1 hr
DT=
2
o
C
32
12
12.5
2
0.9
0.24
0.09
Module
Height
(mm)
1 hr
DT=
10
o
C
120
27
60
8.7
4
0.4
.21
Accuracy
8 hr
DT=
2
o
C
500
270
105
20
9
4.5
1
Accuracy
8 hr
DT=
10
o
C
1200
380
490
75
30
3.7
2.5
24hr
DT=
2
o
C
2400
2000
340
90
35
18
5.9
24 hr
DT=
10
o
C
4700
2400
1500
250
100
21
10
Voltage
(V)
Maximum Accumulated Hold Over in us
Summary Performance Characteristics
Model
to UTC
(+/-1sig-
ma)
100 ns
100 ns
50 ns
50 ns
50 ns
50 ns
50 ns
-1 kHz
-140
-130
-140
-140
-145
-145
-145
(+/-)
3
Warm
Steady
up
State
Power @ Power @
25
o
C
25
o
C
(W)
(W)
0.48
0.52
2.0
2.0
5
5
14
-100 kHz
-155
-150
-150
-150
-145
-145
-145
0.43
0.45
0.71
0.71
3.6
3.6
6
AVAR
(t=1s)
tbd
tbd
1E-10
1E-10
1E-11
1E-11
1E-11
MD-0110-DXJ-TCXO-10M0000000
MD-0112-DXJ-HPTC-10M0000000
MD-0111-DXJ-EMXO-10M0000000
MD-0111-DXJ-DAEM-10M0000000
MD-0113-BXJ-OCXO-10M0000000
MD-0113-BXJ-DAOC-10M0000000
MD-0114-BXJ-DOCX-10M0000000
40
40
1
1
0.2
0.2
0.1
-10 Hz
11
12.6
11.8
11.8
19.5
19.5
21.3
-100 Hz
-120
-110
-130
-130
-135
-135
-135
5E-12
5E-12
2E-12
2E-12
1E-12
1E-12
1E-12
-10 kHz
-155
-140
-145
-145
-145
-145
-145
5
5
5
5
12
12
12
AVAR
(t=10s)
tbd
tbd
5E-10
5E-10
2E-11
2E-11
2E-11
Phase Noise/ AVAR
MD-0110-DXJ-TCXO-10M0000000
MD-0112-DXJ-HPTC-10M0000000
MD-0111-DXJ-EMXO-10M0000000
MD-0111-DXJ-DAEM-10M0000000
MD-0113-BXJ-OCXO-10M0000000
MD-0113-BXJ-DAOC-10M0000000
MD-0114-BXJ-DOCX-10M0000000
-95
-80
-100
-100
-120
-120
-120
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
2
Specifications
Internal Receiver Characteristics
Parameter
Type
Number of channels
Frequency band
Tracking code
Tracking capability
Position Accuracy
TTFF
Timimg w/ Auto Position Lock
12
L1 (1575.42 MHz)
C/A Code with T-RAIM
12 satellites
<5m,1 sigma
< 10m, 2 sigma
<15 seconds
<80 seconds
<120 seconds
Sensitivity
Update rate
-173 dBw
-185 dBw
HOT (currrent almanac, position, time and
ephemeris)
Warm (current almanac, position, time)
Cold (no data)
Acquisition
Tracking
Carrier and Code Tracking
Condition
GPS Antenna
Parameter
Antenna Bias Voltage
Antenna Current
Min
4.0
2.6
Typical
4.8
3.1
20
Max
5.1
3.4
100
Units
V
DC
V
DC
mA
Condition
12 V supply models
5 V supply models
see protocol for under current flag and short
circuit protection
RF Output Waveform Characteristics (via sma)
Parameter
Waveform
Output Power
Harmonics
Spurious
Waveform
High Level Output Voltage (V
OH
)
Low Level Output Voltage (V
OL
)
Rise/Fall Time
Duty Cycle
40
4.0
2.3
0.0
0.0
3
50
HCMOS
5.0
3.3
0.4
0.3
5
60
V
DC
V
DC
V
DC
V
DC
nSec
%
<-0.5mA Load, 12 V supply models
<-0.5mA Load, 5 V supply models
<0.5mA Load, 12 V supply models
<0.5mA Load, 5 V supply models
15 pF
15 pF
+3.0
+2.0
+9.0
+5.0
Min
Typical
Max
+11.0
+7.5
-30
-70
Units
dBm
dBm
dBc
dBc
Condition
50 Ohm, 12 V supply models
50 Ohm, 5 V supply models
50 Ohm
50 Ohm
Sinewave
RF Output Waveform Characteristics (via pin 8)
1pps Output Characteristics (via SMA and pin 2)
Parameter
Waveform
High-level output voltage (V
OH
)
Low-level output voltage (V
OL
)
Pulse Width
4.5
3.0
0.0
0.0
10
Min
Typical
TTL
Max
5.0
3.3
0.4
0.3
Units
V
DC
V
DC
V
DC
V
DC
us
Condition
50 Ohms, 12 V supply models
50 Ohms, 5V supply models
50 Ohms, 12 V supply models
50 Ohms, 5V supply models
default setting user programmable
100ns to 999.9999 ms
External 1PPS Reference Input (Pin 1)
Waveform
High-Level Output Voltage (V
OH
)
Low-Level Output Voltage (V
OL
)
Pulse width
7
10
2.0
0.0
TTL
5.0
0.4
V
DC
V
DC
uSec
50 Ohms input impedance
3
Specifications
Lock Status Indicator (Pin 9)
4
Parameter
Module Locked
Module Not Locked
Min
4.5
3.0
0
0
Module Hardware OK
Module Hardware Failure
4.5
3.0
0
0
Reset Module
0
0
Enter Manual Holdover
0
0
Rx high-level input voltage (V
IH
)
Rx low-level input voltage (V
IL
)
Tx high-level output voltage (VOH)
Typical
Max
5.0
3.3
0.5
0.3
5.0
3.3
0.5
0.3
0.5
0.3
0.5
0.3
5.5
3.3
Units
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
Condition
<5mA Load, 12 V supply model
<5mA Load, 5V supply model
<5mA Load, 12 V Supply model
<5mA Load, 5V supply model
<5mA Load, 12 V supply model
<5mA Load, 5V supply model
<5mA Load, 12 V Supply model
<5mA Load, 5V supply model
2 kOhm internal pullup
2 kOhm internal pullup
2 kOhm internal pullup
2 kOhm internal pullup
12 V supply model
5 V supply model
12 V supply model
5 V supply model
12 V supply model
5 V supply model
12 V supply model
5 V supply model
User configurable from 0 to 255 seconds
See MD-010/MD-011Command List for
Full Details
Module Hardware OK Indicator (Pin 10)
5
Module Hardware Reset (Pin 12)
6
Manual Holdover Set (Pin 11)
7
Serial Communications Interface
8
4.5
3.0
-0.5
-0.3
4.5
3.0
Tx low-level output voltage (V
OL
)
Update rate
Communications Protocol
Pulse width
7
Supply voltage
10
+11.4
+4.75
Supply voltage (VS)
Dc voltage on any I/O pin
Output load
AC ripple
10
50
+12
+5
+12.6
+5.25
15
7.5
5.5
-0.5
-0.3
0.0
0.0
5.0
3.3
0.0
0.0
1
Vectron Binary/NMEA 0183
uSec
0.5
0.3
0.5
0.3
V
DC
V
DC
Hz
Supply Voltage (Pin 7,15,16)
V
DC
V
DC
V
DC
V
DC
V
Ohms
mVpk-pk
10Hz to 1MHz
12 V supply models
5 V supply models
12 V supply models
5 V supply models
Absolute Maximum Ratings
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
4
Detailed Hold Over Specifications (us)
Holdover Capability - MD-0110-DXJ-TCXO-10M0000000
Holdover Time
1 minute
5 minutes
10 minutes
30 minutes
1 hour
Holdover Time
1 minute
5 minutes
10 minutes
30 minutes
1 hour
Holdover Time
30 minutes
1 hour
4 hours
8 hours
24 hours
Holdover Time
30 minutes
1 hour
4 hours
8 hours
24 hours
Holdover Time
30 minutes
1 hour
4 hours
8 hours
24 hours
Holdover Time
30 minutes
1 hour
4 hours
8 hours
24 hours
Holdover Time
30 minutes
1 hour
4 hours
8 hours
24 hours
ΔT=2
˚C
0.6
2
4.9
15
32
ΔT=2
˚C
0.25
0.75
1.5
4.8
12
ΔT=2
˚C
6.5
12.5
52
105
340
ΔT=2
˚C
1
2
8.5
20
90
ΔT=2
˚C
0.45
0.9
3.6
8
32
ΔT=2
˚C
0.12
.24
1
4.5
18
ΔT=2
˚C
0.05
.09
0.4
1.03
5.9
ΔT=10
˚C
2.1
10
20
60
120
ΔT=10
˚C
0.5
2.1
4.3
13
27
ΔT=10
˚C
31
60
250
490
1500
ΔT=10
˚C
4.5
8.7
34
75
240
ΔT=10
˚C
1.8
4
14
30
100
ΔT=10
˚C
0.2
0.4
1.6
3.7
21
ΔT=10
˚C
0.11
0.21
0.91
2
9
ΔT=20
˚C
4
20
40
120
240
ΔT=20
˚C
1
4
8
23
47
ΔT=20
˚C
60
120
480
970
2950
ΔT=20
˚C
8.2
17
70
140
440
ΔT=20
˚C
3.4
6.6
27
55
170
ΔT=20
˚C
0.3
0.5
2.3
5
23
ΔT=20
˚C
0.19
0.38
1.54
3.4
12.8
ΔT=30
˚C
6
30
60
175
350
ΔT=30
˚C
1.2
5.5
10.8
33
66
ΔT=30
˚C
95
180
725
1450
4380
ΔT=30
˚C
12.3
25
100
200
630
ΔT=30
˚C
5
10
40
80
250
ΔT=30
˚C
0.35
1
3
3.5
25
ΔT=30
˚C
0.27
0.54
2.2
4.7
17
ΔT=45
˚C
9
10
45
85
260
520
ΔT=45
˚C
9
1.7
8
16
55
120
ΔT=45
˚C
9
140
270
1090
2170
6530
ΔT=45
˚C
9
19
37
150
295
920
ΔT=45
˚C
9
7.4
15
60
120
360
ΔT=45
˚C
9
0.5
1
3.9
8.2
32
ΔT=45
˚C
9
0.4
0.77
3.1
6.8
23
Holdover Capability - MD-0112-DXJ-HPTC-10M0000000
Holdover Capability - MD-0111-DXJ-EMXO-10M0000000
Holdover Capability - MD-0111-DXJ-DAEM-10M0000000
Holdover Capability - MD-0110-DXJ-OCXO-10M0000000
Holdover Capability - MD-0110-DXJ-DAOC-10M0000000
Holdover Capability - MD-0110-DXJ-DOCX-10M0000000
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
5
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