Model 520 Temperature Compensated Crystal Oscillator FEATURES Clipped Sine Wave Output Optional Voltage Control for Frequency Tuning VCTCXO 2.5mmx2.0mm Surface Mount Package Frequency Range 10 52 MHz Standard Frequencies List Shown Below Fundamental Crystal Design Frequency Stability, several options to choose from 0.5ppm ~ 2.5ppm Operating Voltage, +1.8Vdc ~ +2.5Vdc Operating Temperature to -40C to +85C Tape & Reel Packaging Available RoHS/Green Compliant (6/6) APPLICATIONS The Model 520 Temperature Compensated Crystal Oscillator (TCXO) is a quartz based, clipped sine wave output, with optional frequency tuning, in a hermetically sealed ceramic package. M520 is suitable for wireless communications, broadband access, WLAN/WiMax/WIFI, portable equipment, test and measurement and mobile applications. ORDERING INFORMATION 520 M FREQUENCY IN MHz SUPPLY VOLTAGE 3 M = +1.8Vdc M - indicates MHz and decimal point. See table below for standard frequencies available. N = +2.5Vdc T = +2.8Vdc R = +3.0Vdc FREQUENCY TUNING (AFC) L = +3.3Vdc T = TCXO (no AFC) 4 A = 5 ppm FREQUENCY STABILITY * 1 OPERATING TEMPERATURE RANGE 05 = 0.5 ppm 2 10 = 1.0 ppm H = -10C to +60C C = -20C to +70C 15 = 1.5 ppm 20 = 2.0 ppm D = -30C to +85C (std) I = -40C to +85C 25 = 2.5 ppm (std) * Frequency vs. Temperature Only 1 Only available with temperature range codes and. 2 Only available with temperature range codes, and. 3 Frequency is recorded with two leading digits before the M and 4 significant digits after the M (including zeros). Ex. XXMXXXX (10M0000), XXMXXXX (16M3840) 4 See Electrical Characteristics for Control Voltage range per Supply Voltage selected. Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. M520 Standard Frequencies 13.000000 16.368000 19.200000 26.000000 40.000000 16.367667 16.369000 20.000000 38.400000 Document No. 008-0371-0 Page 1 - 4 Rev. C www.ctscorp.com Model 520 TCXO/VCTCXO Clipped Sine Wave ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Maximum Supply Voltage V - -0.5 - 6.0 V CC V V Maximum Control Voltage --0.5- V C CC Storage Temperature T --40-85C STG Std frequencies listed in Ordering Information Frequency Range f 10 - 52 MHz O Frequency Stability 0.5, 1.0, 1.5 f/f Frequency vs. Temperature Only ppm O 2.0, 2.5 Frequency Stability vs. Initial Calibration 25C -- 2.0 vs. Supply Voltage 5% change -- 0.2 vs. Load - 10% change -- 0.2 ppm vs. Reflow Shift After 2 reflows -- 2.0 1st year -- 1.0 vs. Aging 10 year - - 10.0 Operating Temperature Order Code W 055 Order Code H -10 60 T-C A Order Code C -20 25 70 Order Code D -30 85 Order Code I -40 85 Supply Voltage Order Code M 1.77 1.8 1.83 Order Code N 2.38 2.5 2.63 V V CC Order Code T 5% 2.66 2.8 2.94 Order Code R 2.85 3.0 3.15 Order Code L 3.14 3.3 3.47 Supply Current 10.00 MHz - 25.99 MHz - - 2 I mA CC 26.00 MHz - 52.00 MHz - - 2.5 2.5V, 2.8V, 3.0V, 3.3V 0.4 1.5 2.4 Control Voltage V V C 1.8V 0.3 0.9 1.5 Specified V Range Frequency Tuning VCTCXO Only - 5.0 - - ppm C V Input Impedance ZV - 500 - - kOhm C C Output Waveform AC coupled Clipped Sinewave Output Voltage Levels V 0.8 - - Vp-p O R // C 10 kOhm // 10 pF Output Load - L L T Start Up Time ---2ms S Varies based on output frequency. See example plot 19.2 MHz below. Phase Noise - dBc/Hz Document No. 008-0371-0 Page 2 - 4 Rev. C ELECTRICAL PARAMETERS