ETC VS-750

Preliminary Data Sheet
VS-750
Dual Frequency VCSO
Features
• 5 x 7.5 x 2.5 mm Package
• Output Frequencies from 500 MHz to 850 MHz
• 3.3 V Operation
• Low Jitter < 0.25 ps-rms across 50 kHz to 80 MHz
• LV-PECL Configuration with Fast Transition Times
• Complementary Outputs
• Frequency Select
• Output Disable
• Patent Pending Technology
• Fully Compatible for Lead Free Assembly
Pb
Applications
PLL circuits for Clock Smoothing and Frequency Translation
Description
Vcc
COutput
Standard
• 1-2-4 Gigabit Fibre Channel
INCITS 352-2002
• 10 Gigabit Fibre Channel
INCITS 364-2003
• 10GbE LAN / WAN
IEEE 802.3ae
• OC-192
ITU-T G.709
• SONET / SDH
GR-253-CORE Issue3
Output
Description
SAW 1
The VS-750 is a SAW based voltage controlled oscillator that
operates at the fundamental frequencies of the internal SAW
filters. These SAW filters are high-Q quartz devices that
enable the circuit to achieve low phase jitter performance over
a wide operating temperature range. The dual oscillator is
housed in a hermetically sealed leadless surface mount
package offered on tape and reel. It has a frequency select
function that enables either “Frequency 1” or “Frequency 2.” It
also has an output disable to facilitate on-board testing.
SAW 2
Vc
OD
FS
Gnd
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 1 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Electrical Performance
Parameter
Symbol
Frequency
Nominal Frequency
Absolute Pull Range
Linearity
Gain Transfer (See Pg 5)
Temperature Stability
Transition Time
±5
+405
±100
4
IOUT
tR
tF
SYM
Notes
MHz
ppm
%
ppm/V
ppm
µsec
1,2,3
1,2,3,8
2,4,8
2,8
1,6
6
3.3
55
3.63
70
V
mA
2,3
3
VCC-1.4
550
VCC-1.3
650
VCC-1.2
950
20
400
400
55
V
mV-pp
mA
ps
ps
%
dBc
ps-rms
2,3
2,3
6
5,6
5,6
2,3
6
6,7
kΩ
kHz
°C
mm
6
6
1,3
45
50
250
250
50
60
0.130
0.250
100
500
Zc
BW
TOP
Units
2.97
φJ
Control Voltage
Input Impedance
Modulation Bandwidth
Operating Temperature
Package Size
Maximum
±50
VCC
ICC
Outputs
Mid Level
Swing
Current
Rise Time
Fall Time
Symmetry
Spurious Suppression
Jitter (See Pg 5)
Typical
500 - 850
fN
APR
Lin
KV
fSTAB
Supply
Voltage
Current (No Load)
1.
2.
3.
4.
5.
6.
7.
8.
Minimum
-40
85
5.0 x 7.5 x 2.5
See Standard Frequencies and Ordering Information (Pg 7).
Parameters are tested with production test circuit below (Fig 1).
Parameters are tested at ambient temperature with test limits guardbanded for specified operating temperature.
Measured as the maximum deviation from the best straight-line fit, per MIL-0-55310.
Measured from 20% to 80% of a full output swing (Fig 2).
Not tested in production, guaranteed by design, verified at qualification.
Integrated across 50 kHz to 80 MHz, per GR-253-CORE Issue3.
Tested with Vc = 0.3V to 3.0V.
Vc (-1.0V to +1.7V)
1
OE (-0.58V), OD (+0.59V)
2
F1 (-0.58V), F2 (+0.59V)
3
12
Vcc (+2V)
10
COutput
tR
tF
SYM = 100 x tA / tB
Vcc - 1.0V
80%
Vee (-1.3V)
5
Output
8
Vcc - 1.3V
-1.3V: 5,13
Gnd: 4,6,7,9,11,14
50Ω
50Ω
20%
Vcc - 1.6V
Test Circuit Notes:
1) To Permit 50Ω Measurement of Outputs, all DC Inputs are Biased Down 1.3V.
2) All Voltage Sources Contain Bypass Capacitors to Minimize Supply Noise.
3) 50Ω Terminations are Within Test Equipment.
Figure 1. Test Circuit
tA
tB
Figure 2. 10K LV-PECL Waveform
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 2 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Outline Diagram
11
12
10
9
Pad Layout
8
VS750LG
XX - XX
VI YWW
13
14
1
2
4
3
7.50±0.15
[0.295±0.006]
7
6
5.10±0.15
[0.201±0.006]
1.02
[0.040]
5
1.96
[0.077]
1.30 [0.051]
0.10 [0.004]
0.76
[0.030]
R0.15 [R0.006]
0.64
[0.025]
4.14
[0.163]
1.02
[0.040]
1.27
[0.050]
0.76
[0.030]
1.27
[0.050]
2.49±0.18
[0.098±0.007]
1.02
[0.040]
1.52
[0.060]
0.25
[0.010]
0.20
[0.008]
Y = Year
WW = Week
XX = Frequency Code
(See Ordering Info)
2.07
1.27
[0.081]
[0.050]
3.28
[0.129]
2.54
[0.100]
5.08
[0.200]
1.45
[0.057]
1.27 [0.050]
mm
[inch]
mm
[inch]
2.54 [0.100]
Pin Out
Marking Key
Pin
Symbol
Function
1
2
3
VC
OD
FS
VCSO Control Voltage
Output Disable (See Control Logic)
Frequency Select (F1 or F2)
4,6,7,9,11,14
NC
No Connection (Suggest to Gnd)
5,13
Gnd
Case and Electrical Ground
8
10
Output
COutput
12
VCC
Position 6
Position 7
L = LFF
G = GNN
H = HNN
Control Logic (LV-CMOS)
VCSO Output
VCSO Complementary Output
Power Supply Voltage (3.3 V ±10%)
OD
FS
Operation
0
0
1
0
1
F1
F2
0
Disabled
Tape and Reel (EIA-481-2-A)
Po
ØDo
W2
F
W
N
C
D
A
W1
P1
B
Tape Dimensions (mm)
Reel Dimensions (mm)
Dimension
W
F
Do
Po
P1
A
B
C
D
N
W1
W2
Tolerance
Typ
Typ
Typ
Typ
Typ
Typ
Min
Typ
Min
Min
Typ
Max
# Per
Reel
VS-750
16
7.5
1.5
4
8
178
1.5
13
20.2
50
16.4
22.4
200
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 3 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Absolute Maximum Ratings
Parameter
Power Supply
Input Current
Output Current
Voltage Control Range
Storage Temperature
Symbol
VCC
IIN
IOUT
VC
TSTR
Ratings
0 to 6
100
25
0 to VCC
-55 to 125
Unit
V
mA
mA
V
Soldering Temperature / Duration
TPEAK / t P
260 / 40
°C / sec
°C
Stresses in excess of these absolute maximum ratings can permanently damage the device. Also, exposure to
these absolute maximum ratings for extended periods can adversely affect device reliability. Functional
operation is not implied at these or any other conditions in excess of those represented in the operational
sections of this datasheet. Permanent damage is also possible if any device input (Vc, FS, or OD) draws
greater than 100 mA.
Suggested Output Load Configurations
+3.3V
0.10 µF
0.10 µF
0.01 µF
Vc
1
OD
2
FS
3
Gnd
5
12
10
8
0.01 µF
Vcc
COutput
Output
Gnd: 5,13
NC or Gnd: 4,6,7,9,11,14
240Ω
Z = 50Ω
Z = 50Ω
Vc
1
OD
2
FS
3
10
Gnd
5
8
240Ω
12
OD
FS
3
10
Gnd
5
8
Gnd: 5,13
NC or Gnd: 4,6,7,9,11,14
COutput
Z = 50Ω
Output
Z = 50Ω
150Ω
40Ω
40Ω
49Ω
49Ω
LV-PECL to LVDS: Restricted for short transmission lengths.
Configuration may require modification depending on LVDS receiver.
0.10 µF
0.01 µF
1
2
Vcc
150Ω
Gnd: 5,13
NC or Gnd: 4,6,7,9,11,14
+3.3V
0.10 µF
12
100Ω
LV-PECL to LV-PECL: For short transmission lengths, the power
consumption could be reduced by removing the 100Ω resistor and
doubling the value of the pull down resistors.
Vc
+3.3V
+3.3V
+2.0V
0.01 µF
Vcc
Vc
COutput
0.01 µF
Output
0.01 µF
240Ω
240Ω
12
OD
1
2
FS
3
10
-1.3V
5
8
Vcc
COutput
Output
-1.3V: 5,13
NC or Gnd: 4,6,7,9,11,14
Production Test: Allows direct DC coupling into 50Ω measurement
equipment. Must bias the power supplys as shown. Similar to Figure 1.
Functional Test: Allows standard power supply configuration.
Since AC coupled, the LV-PECL levels cannot be measured.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 4 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Typical Characteristics
800
At Ambient (22.5°C)
Typical Gain Transfer @ 622.0800 = +415 ppm/V
600
Typical Gain Transfer @ 644.5313 = +399 ppm/V
Frequency (PPM)
400
200
0
-200
622 Vc Pull
644 Vc Pull
-400
y = 415.29x - 605.56
Linear (622 Vc Pull)
y = 398.69x - 578.48
Linear (644 Vc Pull)
-600
-800
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
Control Voltage (V)
-95
Typical Calculated Jitter @ Vc = 1.65V
OC-192 Spec
-100
SONET OC-48 (12kHz-20MHz) = 0.23 ps-rms; 1.61 ps-pp
F1 = 622
-105
SONET OC-192 (50kHz-80MHz) = 0.13 ps-rms; 0.91 ps-pp
F2 = 644
-110
1/f
3
L(f) (dBc/Hz)
-115
-120
1/f
2
-125
-130
1/f1
-135
OC-192 Spec Equivalent to
0.25 ps-rms @ 500 MHz
-140
-145
-150
-155
10
100
1,000
10,000
100,000
Offset (kHz)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 5 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and
IR reflow simulation. The VS-750 family is capable of meeting the following qualification tests:
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
Conditions
MIL-STD-883, Method 2002
MIL-STD-883, Method 2007
MIL-STD-883, Method 2003
MIL-STD-883, Method 1014
MIL-STD-883, Method 2016
Handling Precautions
Although ESD protection circuitry has been designed into the VS-750 proper precautions should be taken when
handling and mounting. VI employs a human body model (HBM) and a charged-device model (CDM) for ESD
susceptibility testing and design protection evaluation.
ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1500 V
1000 V
Conditions
MIL-STD 883, Method 3015
JEDEC, JESD22-C101
Reflow Profile (IPC/JEDEC J-STD-020C)
Time Above 217 oC
Time To Peak Temperature
Time At 260 oC
Ramp Down
Symbol
tS
R UP
tL
t AMB-P
tP
R DN
The device has been qualified to meet the JEDEC
standard for Pb-Free assembly. The temperatures
and time intervals listed are based on the Pb-Free
small body requirements. The temperatures refer to
the topside of the package, measured on the
package body surface. The VS-750 device is
hermetically sealed so an aqueous wash is not an
issue.
Value
60 sec Min, 180 sec Max
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 oC/sec Max
tL
260
R UP
Temperature (DegC)
Parameter
PreHeat Time
Ramp Up
tP
217
200
R DN
150
tS
t AMB-P
25
Time (sec)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 6 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05
VS-750 Voltage Controlled SAW Oscillator
Preliminary Data Sheet
Standard Frequencies (MHz)
531.2500 P8
569.1964 P9
622.0800 P2
624.6938 PD
625.0000 P3
627.3296 P7
629.9878 PA
644.5313 P4
657.4219 PB
666.5143 P5
669.3266 R3
669.6429 R1
672.1627 R5
690.5692 R4
693.4830 R6
693.7500 R8
707.3527 TC
777.6000 T4
805.6641 TA
1. Other frequencies available upon request, please contact VI for details.
2. Frequency 1 must be lower than Frequency 2. Not all combinations are available.
Ordering Information
VS - 750 - L F F - H N N - P2 - P4
Product Family
Frequency 2
VS: VCSO
See Above
Package
Frequency 1
750: 5 x 7.5 x 2.5 mm
See Above
Input
Other (Future Use)
L: 3.3 V
N: N/A
Output
Other (Future Use)
F: LV-PECL
N: N/A
Operating Temperature
Absolute Pull Range
F: -40 to 85 °C
G: +/- 50 ppm
H: +/- 100 ppm
For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . . Tel: 1-88-VECTRON-1
Fax: 1-888-FAX-VECTRON
EUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +49 (0) 3328-4784-17
Fax: +49 (0) 3328-4784-30
ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +86-21-28909740
Fax: +86-21-28909240
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 7 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 03Mar05