EURO
QUARTZ
Ultra-low jitter Oscillator
FEATURES
Ultra-low Phase Jitter, 50fs typical
LVCMOS output
Supply voltage 1.8, 2.5 or 3.3 Volts
Frequency stability from ±25ppm over -40° to +85°C
Available in three standard SM packages.
GENERAL SPECIFICATION
Model (Output Logic)
Type
Dimensions
Frequency Range
Supply Voltage V
DD
Current Consumption
Output Logic “HIGH,” “1”
Output Logic “LOW,” “0”
Rise Time (T
R
)/Fall Time (T
F
)
EQHJ32
3.2 x 2.5 x 1.0mm
5.0MHz to 50.0MHz
1.8V
DD
±10%
Voltage code is “18”
3mA typical, 5mA maximum
1.62V (minimum)
0.18V (maximum)
5.0ns typical, 10ns maximum
EQHJ Series Oscillators
5.0MHz to 50.0MHz
Page 1 of 2
“HJ Series LVCMOS
EQHJ53
5.0 x 3.2 x 1.2mm
5.0MHz to 50.0MHz
2.5V
DD
±10%
Voltage code is “25”
4.7mA typical, 7mA maximum
2.25 (minimum)
0.25V (maximum)
2.0ns typical, 10ns maximum
EQHJ57
7.0 x 5.0 x1.4mm
5.0MHz to 50.0MHz
3.3V
DD
±10%
Voltage Code is 3”
7mA typical, 10mA maximum
2.97V (minimum)
0.33V (maximum)
1.5ns typical, 10ns maximum
Measured between 10% - 90% of V
DD
, (CL = 15pF)
Supply Voltage vs. Freq. Stability:
Load:
Start-up Time:
Duty Cycle:
Tristate Function on Pad no. 1:
Enable/Disable Time
Enable:
Disable:
Storage Temperature:
Ageing at Ta = 25°C:
RMS Phase Jitter (at 49.152MHz):
±1.0ppm (maximum)
15pF (CMOS)
0.8ms typical, 5.0ms max.
50%±5% (Measured at 50% V
DD
)
High Enable
1ms max.
200ns max.
-55° to +150°C
±3ppm max. in first year
±2ppm max. per year thereafter
48fs typical at 3.3V
DD
118fs typical at1.8V
DD
HJ Series vs. Traditional Osc. Phase Jitter
SSB Phase Noise
49.152MHz, 3.3V
49.152MHz, 1.8V
Offset
dBC/Hz (typ.)
dBC/Hz (typ.)
10Hz
-91
-97
100Hz
-126
-120
1kHz
-141
-132
10kHz
-153
-146
100kHz
-166
-159
1MHz
-171
-164
10MHz
-172
-164
20MHz
-174
-165
CMOS TEST CIRCUIT
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
EURO
QUARTZ
Ultra-low jitter Oscillator
OUTLINES & DIMENSIONS
EQHJ32
EQHJ53
EQHJ Series Oscillators
5.0MHz to 50.0MHz
Page 2 of 2
EQHJ57
PART NUMBERING
(1)
Supply
Voltage
Examples
(1)
(2)
(3)
18
25
3
(2)
Holder
Type
EQHJ32
EQHJ53
EQHJ57
(3)
Frequency
Stability
B
C30
E
(4)
T
T
T
T
(5)
Centre
Frequency
25.000
10.000
49.152
Ex.(1): 18HJ32 - BT - 25.000 (1.8V, EQHJ32 package, Tristate on pin 1, ±50ppm -10° to +70°C, 25.000MHz.
Ex.(2): 25EQHJ53 - C30T - 10.000 (2.5V, EQHJ53 package. Tristate on pin 1, ±30ppm -10° to +70°C, 10.000MHz.
Ex.(3): 3EQHJ57 - ET - 49.152 (3.3V, EQHJ57 package, Tristate on pin1, ±50ppm over -40° to +85°C, 49.152MHz.
(1)
(2)
Supply Voltage, “18” for +1.8V, “25” for +2.5V, “3” for +3.3V
Holder Type - see above
“A” ±25ppm, “B” ±50ppm, “C” ±100ppm
-10° ~ +70°C
If non-standard enter stability after “C”. Examp. “C15” = ±15ppm over -10°~+70°C
“D” ±25ppm, “E” ±50ppm, “F” ±100ppm
-40° ~ +85°C
If non-standard enter stability after “I”. Examp. “I30” = ±30ppm over -40°~+85°C
“T” for Tristate function
Frequency in MHz
(3)
(4)
(5)
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
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