SO-502 SAW Based Oscillator
Product Data Sheet
SO-502
SAW Based Clock Oscillator
Features
•
Output frequencies from 300 MHz to 1350 MHz
•
Ultra low jitter < 0.05 ps-rms (12 kHz to 20 MHz)
< 0.05 ps-rms (50 kHz to 80 MHz)
•
Small low profile 9.0 * 14.0 * 4.5 mm SMT package
•
3.3 V, 5.0 V and 12V Supply Options
•
Low phase noise, -160 dBc/Hz @ 1 MHz offset (1 GHz)
•
LV-PECL, PECL, or Sinewave (0 to +10 dBm into 50
Ω)
•
Output disable feature (For LVPECL - PECL option)
Product is free of lead and compliant to
EC ROHS Directive
Applications
•
Point to Point / Point to Multi Point Radios
•
Instrumentation
•
Test & Measurement
•
Military & Avionics
Description
The SO-502 is a SAW based clock oscillator that operates at
the fundamental frequency of the internal SAW resonator.
This direct approach enables this series to achieve low phase
noise and jitter performance at high output frequencies and
over wide operating temperature range. The oscillator is
housed in a hermetically sealed J-lead surface mount package
offered on tape and reel. As an option, it has an output
disable to facilitate on-board testing.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 3 November 06
1 of 9
SO-502 SAW Based Oscillator
Table 1. Electrical Performance
Parameter
Symbol Minimum
F
N
F
STAB
300
Typical
Maximum
1350
±250
+50, -100
12
5
3.3
55
12.6
5.25
3.450
70
Units
MHz
ppm
ppm
V
V
V
mA
dBm
dBm
dBm
dBc
ps,rms
ps,rms
V
V
ps
%
ºC
mm
Notes
1,2
1,2,7
5
2,3
2,3
2,3
2,3
2,3
2,3
2,3
2,3
5,6
5,6
2,3,4
2,3,4
2,3,4
2,3,4
1
Frequency
Center Frequency
Frequency Stability (Referenced to F
O
)
Aging (10 years)
Supply
Voltage (B)
Voltage (C)
Voltage (D)
Current (No Load)
V
CC
V
CC
V
CC
I
CC
P
O
P
O
P
O
11.4
4.75
3.135
Output- Sinewave Options
Sinewave, into 50
Ω
(G)
Sinewave, into 50
Ω
(J)
Sinewave, into 50
Ω
(K)
Harmonics
Jitter @ 622.08 MHz (12 kHz to 20 MHz)
Jitter @ 622.08 MHz (50 kHz to 80 MHz)
0
+7
+10
0.035
0.035
V
OL
V
OL
t
R
,t
F
SYM
T
OP
-20
0.050
0.050
V
CC
-1.63
V
CC
-0.98
45
200
49/51
See Ordering Table
9.0 x 14.0 x 4.5
350
55
Output- PECL Logic Option (F)
Output Level Low
Output Level High
Rise & Fall Time
Symmetry (Duty Cycle)
Operating Temperature
Package Size
Table Notes:
1. See Standard Frequencies and Ordering Information
2. Parameters are tested with production test circuit
3. Parameters are tested at ambient temperature with test limits guard-banded for specified operating temperature.
4. Output levels are standard 100K PECL compatible and measured from 20% to 80% of a full output swing (Fig 1).
5. Not tested in production, guaranteed by design, verified at qualification.
6. Integrated across 12 kHz to 20 MHz or 50 kHz to 80 MHz per GR-253-CORE Issue3. LVPECL Output
7. Maximum Frequency occurs at room temperature
t
R
80%
t
F
SYM = 100 x t
A
/ t
B
Vcc - 1.0V
Vcc - 1.3V
20%
Vcc - 1.6V
t
A
t
B
Figure 1. 100K PECL Waveform
2 of 9
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 3 November 06
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
SO-502 SAW Based Oscillator
Outline Diagram
6
5
4
Pad Layout
VS-500-LFF-GNN
SO-502-BJF-LNN
XXX.XXX
XXX.XXX
∆
VI
VI YWW
YYWW
1
2
3
8.89±0.15
[0.350±0.006]
7.63
[0.300]
1.27
[0.050]
13.97±0.20
[0.550±0.008]
0.46±0.05
[0.018±0.002]
[
4.49+0.20
-0.30
+0.008
0.177-0.012
]
3.00
[0.118]
8.80
[0.346]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
5.08±0.13
[0.200±0.005]
2.54±0.13
[0.100±0.005]
mm
[inch]
Table 3. Pin Out – PECL Option
Pin
1
2
3
4
5
6
Symbol
-
OD
GND
Output
COutput
V
CC
Function
N/C
N/C or Output Disable
Case and Electrical Ground
Output
Complementary Output
Power Supply Voltage
1
Table Notes:
1. By setting Output Disable pin High, the RF output is disabled and pin 4 is held high, pin 5 is held low.
The threshold for Output Disable is 2.3V above pin 3. Output disable pin can be left floating for normal operation
3 of 9
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 3 November 06
SO-502 SAW Based Oscillator
Suggested Output Load Configurations – PECL Operation
+5.0V
.01uF
.1uF
(From P LL)
Vc
OD
G nd
1
2
3
6
+5.0V + 5.0V
V cc
120
Ω
120
Ω
5 C O utput
O utput
4
82
Ω
82
Ω
(A C C oupling)
+5.0V
.01uF
.1uF
(From P LL)
Vc
OD
G nd
1
2
3
6
V cc
(A C C oupling)
5 C O utput
O utput
4
330
Ω
330
Ω
Suggested Output Load Configurations – LVPECL Operation
+3.3V
.01uF
0.1uF
(From PLL)
Vc
OD
Gnd
1
2
3
6
+3.3V +3.3V
Vcc
130
Ω
130
Ω
5 COutput
Output
4
82
Ω
82
Ω
(AC Coupling)
+3.3V
.01uF
0.1uF
(From PLL)
Vc
OD
Gnd
1
2
3
6
Vcc
(AC Coupling)
5 COutput
Output
4
240
Ω
240
Ω
4 of 9
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 3 November 06
SO-502 SAW Based Oscillator
Table 4. Pin Out – Sinewave Option
Pin
1
2
3
4
5
6
Table Notes:
1. If Vcc1 is +12V and a separate 5V is not applied to pin 5 then pin 5 must be connected through a 220Ώ 1/4W external resistor.
Symbol
V
C
-
V
EE
Output
V
CC
V
CC
Function
N/C
N/C
Ground
Sinewave Output
Vcc2
1
Vcc1
Suggested Output Load Configurations – SINEWAVE Operation
+12V
Vcc
NC
1
NC
2
3
6
5
4
220
Ώ
1/4W
0.1uF
0.01uF
0.01uF
Output AC Coupled with
50
Ώ
to ground
+5V
Vcc
NC
1
NC
2
3
6
5
4
0.1uF
0.01uF
0.01uF
Output AC Coupled with
50
Ώ
to ground
5 of 9
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 3 November 06
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