TEMEX SRD02

SAW Products
SR D02
Ultra Low Noise Phase locked 500 MHz SAW Oscillator
Preliminary specification (Rev.A1)
Features ..............................................................................P01
Environmental conditions.....................................................P01
Mechanical Characteristics .................................................P02
Technical Characteristics.....................................................P03
S AW
P ro d u ct s
SR D02
Ultra Low Noise Phase locked 500 MHz SAW Oscillator
Preliminary specification (Rev.A1)
May 2009
Features
Phase locked SAW Oscillator
Nominal Frequency:
500 MHz
Ultra low phase noise:
- 165 dBc/Hz @ 10 kHz offset (Typical)
- 181 dBc/Hz noise floor (Typical)
External reference:
10 MHz Ultra Stable Crystal Oscillator
Digital phase lock loop
Automatic frequency calibration at warm-up time
Airborne environment (suspended oscillator core)
Shielded package 70 x 70 x 35 mm
SMA connectors for Frequency Output and Reference Input
Solder pins (Feedthru filters) for DC power supply & status
Environmental conditions
Parameters
Operating temperature range
Storage temperature range
Random vibration
Mechanical shock
Unit
Minimum
°C
°C
- 40
- 40
Typical
Maximum
+ 70
+ 85
g²/Hz [BW Hz]
-
0.02 [10-1000]
0.005 [1000-2000]
Half sine 30 g 11 ms
Humidity
Low pressure & temperature
-
As per MIL-STD- 810F Method 507.4 (93% RH at 60°C)
120 hPa within [-40, +55 °C]
Constant acceleration
-
18 g all directions
1
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
S AW
P ro d u ct s
SR D02
Ultra Low Noise Phase locked 500 MHz SAW Oscillator
Preliminary specification (Rev.A1)
May 2009
Mechanical characteristics
Package:
•
Machined, shielded enclosure
•
SMA connector & Feedthru solder pins
•
Case: AG4,5MC
•
Finish: Ni15(I)/Zn1(II)/AG4,5MC
Foot-print:
•
•
70 x 70 mm typical
± 0.2 mm
Height:
•
•
35 mm typical
± 0.2 mm
Pin description
Pin number
Type
Label
Function
1
Female SMA
Frequency output
500 MHz
2
Feedthru + Ground
DC Supply voltage
Oscillator & oven power supply
3
Feedthru + Ground
Status
Ready or Alarm
4
Female SMA
Reference input
10 MHz
2
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
S AW
P ro d u ct s
SR D02
Ultra Low Noise Phase locked 500 MHz SAW Oscillator
Preliminary specification (Rev.A1)
May 2009
Technical Characteristics
Block diagram
Electrical specifications
Electrical Parameters
Unit
Frequency output (SMA Connector)
Nominal frequency
MHz
Relative frequency stability
ppm
Warm up time (phase locked)
Minimum
Maximum
500
As reference input
mn
Output level (50 Ω load)
dBm
11.5
Harmonics suppression
dBc
30
dBc/Hz
- 141
Phase noise @ 1 kHz offset (static)
Typical
2
5
12.5
13.5
- 137
- 134
Phase noise @ 2 kHz offset
dBc/Hz
- 150
- 146
- 143
Phase noise @ 10 kHz offset
dBc/Hz
- 168
- 165
- 162
Phase noise @ 100 kHz offset
dBc/Hz
< - 180
- 180
- 175
Phase noise floor (see note here after)
dBc/Hz
< - 180
< - 180
- 175
VSWR
-
2:1
Reference input (SMA Connector)
Nominal frequency
MHz
10
Relative frequency stability (all causes)
ppm
Input level (50 Ω load)
dBm
10
Harmonics suppression
dBc
30
Voltage range
VDC
11.75
Supply current
mA
± 0.3
13
DC Supply voltage (VDC pin)
Ripple (DC to 5 MHz)
12
12.25
300 @ + 25°C
750
mVpp
10
Status (Status pin)
Interface
-
Open drain (external pull resistor to 3.3 V)
Logic 1
-
Oscillator ready
Logic 0
-
Alarm (Warm up or failure)
3
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
S AW
P ro d u ct s
SR D02
Ultra Low Noise Phase locked 500 MHz SAW Oscillator
Preliminary specification (Rev.A1)
May 2009
Note on the measurement of SR D02 phase noise:
•
SR D02 features a phase noise floor which is better than the noise floor of current test setups as shown below with
e. g. the PN9000 setup of Aeroflex: noise floor measurement is limited around – 175 dBc/Hz by the noise floor of the
test setup,
•
Multi-channel measurement and cross correlation technique improve the noise floor of the test setup as e. g. with
the new DCNTS (Dual Core Noise Test System) of Aeroflex: residual noise floor is better than – 190 dBc/Hz
•
With this later setup, SR D02 noise floor is measured at – 182 dBc/Hz!
Typical phase noise
Test setup : Aeroflex PN9000
Noise floor limitation
PN9000 noise
Typical phase noise
Test setup : Aeroflex DCNTS
No limitation on noise floor
DCNTS noise
4
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.