Temperature Compensated Crystal Oscillator Voltage Trim Option Available CXOHD4 / CXOHVD4 Model 4 Pin SMD, 3.3V & 5V, HCMOS/TTL Frequency Range: Frequency Stability: Freq. Stability vs Volt: Freq. Stability vs Load: Temperature Range: Storage: Input Voltage: Mech. Trim. Range: (Option V) Input Current: Output: Symmetry: (Option Y) Rise/Fall Time: Output Voltage: Load: Phase Noise Typ.: 1MHz to 38.88MHz ±1ppm to ±5ppm ±0.5ppm Max ±0.3ppm Max ee Fr ad -40°C to 85°C Le oHS ant R pli -55°C to 120°C om C 3.3V or 5V ± 5% ±3ppm Min Voltage Trim Pin 1 15mA Typ, 30mA Max Designed to meet today's HCMOS/TTL 40/60% Max @ 50% Vdd requirements for tighter 45/55% Max frequency stability tolerance 4ns Typ, 10ns Max while reducing unit cost. "0" = 10% Vdd Max "1" = 90% Vdd Min VCTCXO Specification 15pF/10TTL Max -100dBc/Hz Voltage Trim Pin 1: ± 5ppm Min -130dBc/Hz Control Voltage: (5V) 2.5V ± 2.5V -140dBc/Hz (3.3V) 1.65V ± 1.65V -145dBc/Hz -150dBc/Hz <1ppm Max/yr 10Hz 100HZ 1KHz 10KHz 100KHz Aging: CXOHD4 .878 (22.3) .732 (18.60) .177 (4.5) .019 ±.004 (0.5 ±0.1) CRYSTEK Freq DC #1 .480 (12.20) #4 Bottom View #2 .311 ±.020 (7.9 ±0.5) PIN Function 1 2 3 4 VT or NC GND OUT Vcc #3 .197 (5.0) .614 ±.020 (15.6 ±0.5) .157 Dimensions inches (mm) (4.00) All dimensions are Max unless otherwise specified. OUT mA M pin 14 pin 8 Vdd PWR Supply A B C D E F G H O/P Load incl Probe Cl OSC. VM pin 1 Operating Temperature 0°C to 50°C -10°C to 60°C -10°C to 70°C -20°C to 70°C -30°C to 60°C -30°C to 70°C -30°C to 75°C -40°C to 85°C OUT Option GND CXOHVD4 - B C 3 Y - 25.000 pin 7 #1 P 1.5 A 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 2.0 2.5 3.0 4.0 5.0 3.0 4.0 5.0 D E F B C #2 #3 #4 #5 #6 #7 #1 Crystek TCXO 4 Pin SMD HCMOS/TTL #2 V or blank = (V = Volt.Trim) (Blank = Mech. Trim) #3 Letter = Operating Temperature (see table 1) #4 Letter = Frequency Stability (see table 1) #5 3 or blank = Input Volt (3 = 3.3 volts) (Blank= 5V) #6 Y or blank = Symmetry (Y=45/55) (Blank = 40/60) #7 Frequency in MHz: 3 or 6 decimal places Freq. Stability (± ppm) 1.0 Crystek Part Number Guide Example: CXOHD4-BC3Y-25.000 = mech. trim, -10/60, ±2.5ppm, 3.3V, 45/55%, 25.000MHz CXOHVD4-BCY-25.000 = volt. trim, -10/60,±2.5ppm, 3.3V, 45/55%, 25.000MHz Table 1 Specifications subject to change without notice. TD-020815 Rev. D