Preliminary Specification
Electrical Characteristics
Parameter Sym Conditions Min Typical Max Unit
Power
Requirements
Power Supply Vcc ± 5% 650L
±5% 650S 3.135
4.75 3.30
5.0 3.465
5.25 Vdc
Vdc
Supply Current Icc Vcc=Max. (3.3Vdc)
50Ω. Load (5.0Vdc) 45
60 mA
mA
Frequency
Stabilities
Center
Frequency fnom 832 1244.16
1333.03 1664 MHz
Initial Tolerance fcal Ta=+25°C-10 +10 ppm
Freq. vs. Temp. ∆f/∆Temp Oper. Temp. Range ± 15 ppm
Freq. vs. Voltage ∆f/∆Vcc Vcc ±5% ± 1 ppm
Freq. vs. Load ∆f/∆RL ± 10% Variation ± 1 ppm
Freq. vs Time
(Aging) ∆f/∆Time 20 years ±10 ppm
Waveform
Parameters
Symmetry Sym @ 50% Level 45 50 55 %
Amplitude Vo 50Ω Load Vcc-1.62V Vcc-1.025V V
Rise/Fall Times tr, tf 20% to 80% 225 350 pSec
Load RL Output to Vcc-2.0V
or Equivalent 50 Ω
Phase Jitter 12KHz to 20MHz or
50KHz to 80MHz
Bandwidth
<1 pSec RMS
Model 651
9x14mm Differential PECL
High Frequency Clock
(832MHz to 1.66GHz)
♦ 9x14mm Surface Mount Pkg.
♦ Differential PECL Outputs
♦+3.3Vdc or +5.0Vdc Operation
♦ Sealed AT Strip Crystal
♦Output Enable Function
♦ Low Phase Jitter: < 1.0 pSec RMS
♦Excellent Solder Reflow Performance
CTS Frequency Products
400 W. North Street
Carlisle, PA 17013
717-243-5929