ECS-500 SERIES TEMPERATURE COMPENSATED OSCILLATOR The ECS-500 temperature compensated oscillator covers a wide frequency range and offers a highly stable output over temperature. An internal trimmer is a standard feature to tune the TCXO to its nominal frequency. FEATURES • Highly stable output over temperature • Wide frequency range • Industry standard DIP 14 pin lead spacing • TTL/CMOS Compatible PART NUMBERING GUIDE “EXAMPLE” ECS SERIES 500 – – FREQUENCY (14.4 MHz) 144 – FREQUENCY STABILITY (B=± 5.0 PPM) B OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS FREQUENCY RANGE CONDITIONS Option A Option B Option C FREQUENCY STABILITY OPERATING TEMPERATURE STORAGE TEMPERATURE INPUT VOLTAGE (V CC) 8.0 TO 30.0 MHz 30.0 TO 80.0 MHz at 1.4 VDC Level at 1/2 V CC Level 8.0 TO 30.0 MHz 30.0 TO 80.0 MHz 8.0 TO 30.0 MHz 30.0 TO 80.0 MHz TTL CMOS TTL CMOS TTL CMOS 8.0 TO 30.0 MHz 30.0 TO 80.0 MHz Internal Trimmer INPUT CURRENT SYMMETRY RISE TIME FALL TIME “0” LEVEL “1” LEVEL OUTPUT LOAD START-UP TIME FREQUENCY ADJUSTMENT MINIMUM 8.000 -7.0 -5.0 -3.5 -20 -30 4.5 V TYPICAL 40/60 45/55 50 ±4 50 ±2 MAXIMUM 80.000 +7.0 +5.0 +3.5 +70 +80 5.5 V 15 60 60/40 55/45 13 8 11 6 +0.4 +0.5 5.0 V +2.4 V CC -0.5 10 15 10 7 ±5 PACKAGE DIMENSIONS (mm) 15.24 ±0.2 7.62 ±0.2 1.1 PIN CONNECTIONS #1 N.C. #7 GND #8 OUTPUT #14 +V CC Pin 7 Trimmer Hole 7.62 6.3 12.8 max Pin 1 UNITS MHz PPM PPM PPM ˚C ˚C V DC mA mA % % ns ns ns ns V V V V TTL gates pF ns ns PPM 0.5 Pin 14 Pin 8 TR 5.0 20.5 max. CMOS TF TTL TR TF VCC 1 LEVEL OUT A 50% VCC #14 Supply Voltage V #8 CL 15pF or 10 TTL Clock Oscillator ø 0.43 Figure 1) ECS-500 – Top, Side and Bottom views 2.4VDC 1.4VDC #7 0.8 6.35 7.2 max. 90% VCC GND 10% VCC 0 LEVEL GND 0.4VDC 0 VDC Symmetry Figure 2) Test Circuit Symmetry Figure 3) Output Waveform ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM TCXO’s & VCXO’s 48 TCXO’s & VCXO’s