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