OP4008B Datasheet, PDF (1/5 Pages) RF Monolithics, Inc – Quartz SAW Stabilized and Filtered “Diff Sine” Technology

Preliminary
OP4008B
• Quartz SAW Stabilized and Filtered “Diff Sine” Technology
• Fundamental-Mode Oscillation at 669.327 MHz
• Voltage Tunable for Phase Lock Loop Operations
• Optical Timing Reference for Forward Error Correction Applications
The output of this device is generated and filtered by narrow-band quartz SAW elements at 669.327 MHz.
The configuration of this clock provides a pure signal for optical timing applications in noisy signal environ-
ments. The Q/Q differential output swing of ±1 volt about 0 Vdc has symmetry better than ±1% into loads from
40 to 70 ohms, determined by customer application. The long term frequency accuracy is set by an external
reference source allowing this device to complete a Phase Lock Loop design without the usual noise and jitter
problems associated with PLL’s.
Absolute Maximum Ratings
DC Suppy Voltage
Rating
Tuning Voltage
Case Temperature
Value
0 to 5.5
0 to 6
-55 to 100
Units
Vdc
Vdc
°C
669.327 MHz
Optical
Timing Clock
SMC-08
Electrical Characteristics
Characteristic
Operating Frequency Absolute Frequency
Tuning Range
Tuning Voltage
Tuning Linearity
Tuning Sensitivity
Q and Q Output
Modulation Bandwidth
Voltage into 50 Ω (VSWR≤1.2)
Operating Load VSWR
Symmetry
Harmonic Spurious
Nonharmonic Spurious
Phase Noise
@100 Hz offset
@ 1 kHz offset
@ 10 k offset
Noise Floor
Q and Q Jitter
RMS Jitter
No Noise on V_CC
with 200 mV_P-P noise added from 1 MHz to ½ f_O
Output DC Resistance (between Q & Q)
DC Power Supply
Operating Voltage
Operating Current
Operating Case Temperature
Lid Symbolization (YY=Year, WW=Week)
Sym
f_O
df/dv
V_O
V_CC
I_CC
T_C
Notes
1, 9
2
1
1, 8
2,10
1,3
1,3
3, 4, 5
3, 4, 6
3, 4, 6, 7
3, 4, 6, 7
3, 4, 6, 7
3
1, 3
1, 3
1, 3
1, 3
Minimum
±100
0
140
125
0.60
49
Typical
669.327
±3
265
-75
-105
-125
-155
2
12
12
50
3.13
3.3, 5.0
-40
RFM OP4008B YYWW
Maximum
+3
300
1.1
2:1
51
-30
-60
5.25
70
+85
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling. COCOM CAUTION: Approval by
the U.S. Department of Commerce is required prior to export of this device.
BLOCK DIAGRAM
Units
MHz
ppm
V
%
ppm/V
kHz
V_P-P
%
dBc
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
ps_P-P
ps_P-P
ps_P-P
KΩ
Vdc
mA
°C
Notes:
1. Unless otherwise noted, all specifications include any combination of load VSWR, Vcc, and temperature, with Q and Q terminated
VCC
into 50 ohm loads to ground (see typical test circuit).
2. Useful tuning range is in excess of what is required over temp, aging, pushing, pulling & accuracy.
3. The design, manufacturing process, and specifications of this device are subject to change without notice.
4. Only under the nominal conditions of 50 Ω load impedance with VSWR ≤ 1.2 and nominal power supply voltage.
5. Symmetry is defined as the pulse width (in percent of total period) measured at the 50% points of Q or Q (see timing definitions).
6. Jitter and other spurious outputs induced by externally generated electrical noise on V_CC or mechanical vibration are not included in Vtune
Q
_
Q
this specification, except where noted. External voltage regulation and careful PCB layout are recommended for optimum perfor-
mance.
7. Applies to period jitter of Q and Q. Measurements are made with the Tektronix CSA803 signal analyzer with at least 1000 samples.
SAW Oscillator Buffer Amplifier
8. Linearity is a function of the percentage variation from a permitted linear deviation versus the amount of frequency tune range (see
linearity definition).
9. One or more of the following United States patents apply: 4,616,197; 4,670,681; 4,760,352.
10. Over the range of 669.327 MHz ±25 ppm and the conditions of Note 1.
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
OP4008B-041003
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