“HE” series (non

CLOCK OSCILLATORS
“HE” series (non-PLL based ECL)
Logic: ECL square wave
MERCURY
Since 1973
“HE” series use fundamental mode (inverted mesa) crystal to achieve stable and clean 10KH or 100KH
differential ECL signals. No multiplier, no overtone and no phase lock loop technique is used. Jitter is as low
as 1ps for the 155.520 MHz for SONET/SDH applications. The inherent advantage of differential ECL signal
transmission provides improved noise immunity and makes the system less susceptible to ground noise.
PRODUCT SUMMARY:
Package code
Frequency Range
ECL
Thru-Hole Types
4 PIN MODELS
HE14
19.440 ~ 250 MHz
Assembly Technique
Package Size (mm)
[inches]. H: Seat height.
4 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 8.3H
[0.504 x 0.795 x 0.327]
5 PIN MODELS
HE514
19.440 ~250 MHz
5 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 8.3H
[0.504 x 0.795 x 0.327]
6 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 8.3H
[0.504 x 0.795 x 0.327]
4 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 9.3H
[0.504 x 0.795 x 0.366]
5 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 9.3H
[0.504 x 0.795 x 0.366]
6 pin DIL full size. Hermetically sealed.
Can height = 7.5 mm. Sealed crystal inside.
12.8 x 20.2 x 9.3H
[0.504 x 0.795 x 0.366]
6 PIN MODELS
HE614
19.440 ~250 MHz
Surface Mount Types – Gull Wing
4 PIN MODELS
HE24
19.440 ~250 MHz
5 PIN MODELS
HE524
19.440 ~250 MHz
6 PIN MODELS
HE624
19.440 ~250 MHz
Surface Mount Types – Leadless
HE62
19.440 ~250 MHz
6 pad Leadless.
HE64
19.440 ~250 MHz
6 pad Leadless.
9.6 x 11.4 x 2.5H
[0.378 x 0.449 x 0.098]
9.6 x 11.4 x 4.7H
[0.378 x 0.449 x 0.185]
MERCURY www.mercury-crystal.com
Taiwan: TEL (886)-2-2695-7099, FAX (886)-2-2695-7473, e-mail: [email protected]
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected]
MERCURY
Page 1 of 6
Date: Dec. 1, 2001
Rev. 0
CLOCK OSCILLATORS
“HE” series (non-PLL based ECL)
Logic: ECL square wave
MERCURY
Since 1973
General Specification for “HE” series (low jitter)
TA=+25°C, Inclusive of 25°C calibration tolerance,
operating temperature range, input voltage variation, load change, aging, shock and vibration.
Output Wave Form
Frequency Range
Standard Frequencies
Frequency Stability(1)
Commercial temp. range (code “C”)
Frequency Stability(1)
Industrial temp. range (code “I”)
Frequency Stability
Input Voltage VEE
Output Voltage HIGH “1”, VOH
(Relative to VCC = ground)
Output Voltage LOW “0”, VOL
(Relative to VCC = ground)
Current Consumption
(measured with terminating resistors)
Load
Rise Time (Tr) and Fall Time (Tf)
Duty Cycle at 50% output swing
155.520 MHz, 5V
as example
Jitter
SSB Phase
155.520 MHz, 5V
Noise
as example
Start-up Time
Aging
Storage Temperature
Tri-state option
MERCURY
E C L 100K square wave
Non-PLL based, fundamental mode inverted mesa crystal used
19.440 ~ 250 MHz
38.880, 44.736, 50.000, 77.760, 100.000, 106.250, 125.000, 155.520, 166.6286, 200.0,
207.360, 212.500 MHz (partial list)
“A”: ±25 ppm over 0°C to +70°C
“B”:±50 ppm over 0°C to +70°C
“C”:±100 ppm over 0°C to +70°C
For non-standard please give desired frequency stability after the “C”.
For example “C20” is ±20 ppm over 0 to +70°C
“D”:±25 ppm over -40°C to +85° (not available on all packages)
“E”:±50 ppm over -40°C to +85°C
“F”:±100 ppm over -40°C to +85°C
For non-standard please give desired frequency stability after the “I”.
For example “I20” is ±20 ppm over -40 to +85°C
vs Supply voltage ±5% change: ±3 ppm max.
vs Load ±10% change: ±2 ppm max.
-3.3 V ±5%
- 4.5 V ±5%
- 5.0 V ±5%
- 5.2 V ±5%
-1.00 V min.; -0.90 V typical,
1.04 V min.; -0.95 V typical, -0.88 V max.
-0.83 V max.
-1.48 V min.; -1.38 typical,
-1.85 V min.; -1.75 typical , -1.62 max
-1.25 max.
58 mA typical at 155.520 MHz
85 mA typical at 155.520 MHz
54 mA typical at 77.760 MHz
73 mA typical at 77.760 MHz
50 ohms into Vcc-2V or Thevenin equivalent.
(terminating resistors required on all outputs)
1.5 nano sec. max (20% ↔ 80% VEE)
50±2% typical; 50% ± 5% max. both outputs
over 1 Hz to 1 MHz band width:
20 pico seconds RMS max.
over 10 Hz to 1 MHz band width:
1.8 pico seconds RMS max.
over 100 Hz to 1 MHz band width: 0.2 pico seconds RMS max.
over 12 kHz to 20 MHz band width: 1 pico seconds RMS max.
over 10 Hz to 20 MHz band width:
5 pico seconds RMS max.
-50 dBc at 10 Hz offset, -80 dBc at 100 Hz offset, -110 dBc at 1 kHz offset,
-135 dBc at 10 kHz offset, -145 dBc at 100 kHz offset, -145 dBc at 1 MHz offset
10 m sec. max.
±2 ppm / year max.
-55°C to +100°C
ECL output is disabled and complimentary ECL output remains high when Tri-state pin is “HIGH”.
Both ECL and complimentary ECL outputs are high when Tri-state pin is “LOW’.
Page 2 of 6
Date: Dec. 1, 2001
Rev. 0
CLOCK OSCILLATORS
“HE” series (non-PLL based ECL)
Logic: ECL square wave
MERCURY
Since 1973
PART NUMBER FORMAT AND EXAMPLES:
See below
for options
HE
3, 4
or 5
Packge
Code
Frequency Stability Code
(A ~ F) or Cxx or Ixx
“3” for -3.3V
"4" for -4.5V
“5” for –5.0V
“52” for –5.2V
Nominal
Frequency
Options
“C”for Commercial, 0 ~70°C
“I” for Industrial, -40 to +85°C
xx is desired stability in ppm
5HE14-A-125.0
represents -5.0 V clock oscillator with ECL output125.0 MHz in 4 pin DIP full size, frequency stability is ±25
ppm over 0 to +70°C, non-PLL based. note: Fundamental mode inverted mesa crystal 125 MHz used.
3HE614-C20-155.520-3T
represents -3.3 V clock oscillator with ECL output 155.520 MHz 6 pin full size DIL, frequency stability is ±20
ppm over 0 to +70°C (commercial), with Tri-state option on pin 3. Non-PLL based.
note: Fundamental mode inverted mesa crystal 155.520 MHz used.
MODELS WITH OPTIONS
gnd: ground.
4 pin thru-hole and gull wing models
Pin No.
Full size DIP
Half size DIP
Suffix Q
Suffix U
Suffix
R
Suffix
S
Suffix V
1
1
No Connection
Complimentary
ECL Output
No
Connection
Complimentary
ECL Output
No Connection
(case ground)
7
4
Vcc (case gnd)
Vcc (case gnd)
VEE
VEE
VEE
8
5
14
8
Vcc
Vcc
E C L Output
VEE
Vcc
(case gnd)
VEE
5 pin thru-hole and gull wing models
suffix
Pin 1
Pin 7
Pin 8
Option
Pin 9
Pin 14
blank
No Connection
Vcc (case ground)
ECL Output
Complimentary ECL Output
VEE
- 1T
Tri-State
Vcc (case ground)
ECL Output
Complimentary ECL Output
VEE
MERCURY
Page 3 of 6
Date: Dec. 1, 2001
Rev. 0
CLOCK OSCILLATORS
“HE” series (non-PLL based ECL)
Logic: ECL square wave
MERCURY
Since 1973
6 pin thru-hole and gull wing models
Option
Pin 3
No
connection
Suffix
Pin 1
- 1T
Tri-State
- 3T
No Connection
Pin 7
Vcc
(case ground)
Vcc
(case ground)
Tri-State
option
Pin 12
Complimentary
ECL output
Complimentary
ECL output
Pin 8
ECL Output
ECL Output
Pin 14
VEE
VEE
OUTPUT WAVEFORMS :
Tr
ground
Tf
Max.
Min.
VOH
80%
50%
20%
VOL
TH
Max.
Min.
T
crossover
jitter
Duty cycle=(TH / T)*100
TEST CIRCUIT
Apply to all models and options. Both ECL and complimentary ECL outputs shown.
50 ohms coaxial
Frequency counter
50 ohms
Term.= - 2.0 V
Oscilloscope
1 meg ohm termination
-
+
Complimentary
ECL Output
14
Vcc
SUPPLY
V
VOLTAGE
-VEE
Q
Top view
Q
4 pin DIP example
E/D
7
+
-
ECL Output
A
50 ohms
0.047uF
-
0.01uF
+
MERCURY
50 ohms coaxial
Page 4 of 6
V Term.= - 2.0 V
Date: Dec. 1, 2001
Rev. 0