QUARTZ
EURO
HDF8 LVDS OSCILLATORS
8 pin Dual-in-Line
38.0MHz to 640.0MHz
DESCRIPTION
HDF8 series LVDS output oscillators cover
to 640MHz. The design contains a high 'Q
utilizes a low jitter multiplier circuit. Integ
maximum.
the frequency range 38MHz
' fundamental crystal and
rated phase jitter is 0.5ps
OUTLINE & DIMENSIONS
SPECIFICATION
Frequency Range:
Output Logic
Phase Noise:
Frequency Stability:
Operating Temp Range
Commercial:
Industrial:
38.0MHz to 640.0MHz
LVDS
See table
See table
-10° to +70°C
-40° to +85°C
Input Voltage:
Output Logic
OH
+2.5V or +3.3VDC ±5%
High '1' V
:
1.4V typical, 1.6V max.
0.9V min., 1.1V typical
OL
Low '0' V :
Differential Output Voltage V
OD
:
247mV min., 355mV typ.,
454mV max. Output 1 - Output 2
OD
Differential Output Error dV : -50mV min., 50mV max.
OS
Output Offset Voltage V
:
OS
1.125V min., 1.20V typ., 1.375V max.
0mV min., 3mV typ., 25mV max.
0.7ns typical, 1.0ns max.
Offset Magnitude Error dV
Rise/Fall Times:
:
(20% to 80% of LVDS waveform)
Current Consumption (15pF load):
38MHz to 100MHz:
100.01 to 320MHz:
320.01 to 640MHz:
45mA max.
60mA max.
70mA max.
Load:
Start-up Time:
Duty Cycle:
Drive Capability:
Input Static Discharge Prot:
Storage Temperature Range:
Ageing:
50W from each output
5ms typ., 10ms max.
50%±5% (at 1.5V)
100 Ohms between outputs
2kV min.
PHASE NOISE
(156.250MHz)
JITTER
(156.520MHz)
Offset
dBc/Hz
Typ. Max.
0.4ps 0.5ps
3.0ps 5.0ps
20ps 30ps
-55°C to +150°C
10Hz
100Hz
1kHz
10kHz
100kHz
1MHz
10MHz
-62
-92
±3ppm per year max., ±2ppm
thereafter. At T amb +25°C
Function not available in 4 pin
package
Integrated Phase Jitter:
(12kHz to 20MHz)
Period Jitter:
(RMS)
Period Jitter:
-120
-132
-128
-140
-150
Enable/Disable:
ABSOLUTE MAXIMUM RATINGS
(Permanent damage may be caused if operated beyond these limits.)
(peak to peak)
Supply Voltage Vdd:
Input Voltage Vi:
Input Voltage Vo:
+4.6VDC max.
Vss -0.5 min., VDD +0.5V max.
Vss -0.5 min., Vdd +0.5V max.
PART NUMBERS
HDF8 oscillator part numbers are derived as follows:
STABILITY OVER TEMPERATURE RANGE
Stability
±ppm
Temperature Range Order Code
°C
Example:
3HDF8-A-250.000
25
50
100
25
50
100
-10 to +70
-10 to +70
-10 to +70
-40 to +85
-40 to +85
-40 to +85
A
B
C
D
E
Supply Voltage
25 = 2.5VDC
3 = 3.3VDC
Series Designation
Package Style
8 pin DIL
Stability Code
(See table)
Frequency
F
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk