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| Product Data Sheet VDSGLD @ 38.88 MHz Voltage Controlled Crystal Oscillator Pin Information Table 1. Pin Function Pin Symbol 1 2 3 4 5 6 VC Tri-State GND Output TTL/CMOS Vcc Function Control Voltage TTL logic low disables output TTL logic high enables output waveform Case Ground Output waveform TTL logic low for CMOS optimized symmetry TTL logic high or no connection for TTL optimized symmetry Power Supply Voltage (3.3 V 10%) Performance Characteristics Table 2. Electrical Performance Parameter Nominal Output Frequency Supply Voltage 1 Symbol f0 VDD TO IDD VOH VOL TR/TF Minimum 2.97 -40 Typical 38.88 3.3 Maximum 3.63 85 20 Units MHz V C mA V Operating Temperature Range Supply Current Output Voltage Levels Output Logic High Output Logic Low Output Rise/Fall Time2 Output Duty Cycle or Symmetry 3 0.9*VDD 0.1*VDD 5 45 5 50 -20 +20 20 10 10 100 50 55 nS % ppm ppm ppm % ms M nA KHz D APR APR Absolute Pull Range, Vc = 1.0 to 2.0 V Absolute Pull Range, Vc = 0.3 to 3.0 V Initial Accuracy (Vc = 1.65V @25C) Linearity Start up time (To reach 90% of final amplitude) Control Voltage Input Impedance Control Voltage Leakage Current Control Voltage Bandwidth (-3 dB, VC = 1.65 V) Output Load BW 10 15 pf 1. A 0.1 F low frequency tantalum bypass capacitor in parallel with a 0.01 F high frequency ceramic capacitor is recommended. 2. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions. 3. Duty cycle is defined as (on time/period) per Figure 1. 4. Maxixmum control Voltage Leakage Current is by design. TR Voh TF + - IDD 6 V DD 2 5 3 650 Vs Vol .1F .01F IC 1 + - 4 15pF 1.8k On Time Period VC Figure 1. Output Waveform Figure 2. Output Test Conditions (255C) 1/2 Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1* http://www.vectron.com VDSGLD @ 38.88MHz Outline Diagram VDSGLD 38.88 Figure 3. Outline Diagram Table 3. Ordering Information V Package D Supply Voltage (V) 3.3 10% S Oscillator Type & Special Requirements Initial Accuracy Vc = 1.65V @ 25C G APR L Operating Temperature -40C to+85C D Duty Cycle Min/Max 45/55% Tri-State on Pin # 2 38.88 Frequency (MHz) 6 Pin Ceramic Leadless Chip Carrier 50ppm Nominal Output Frequency For Additional Information Please Contact: USA: Vectron International * 267 Lowell Road, Hudson, NH 03051 * Tel: 1-88-VECTRON-1 * Fax: 1-888-FAX-VECTRON EUROPE: Tel:Tel: 49 (0) 3328 4784 17 * Fax:49 (0) 3328 4784 30 ASIA: Tel:+86 21 28909740 / 41 / 42 * Fax:+86 21 28909240 / 28909999 Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. 4/19/02 2/2 |
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