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 -40°C to +85°C 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 M 520 FREQUENCY IN MHz SUPPLY VOLTAGE M - indicates MHz and decimal point. M = +1.8Vdc N = +2.5Vdc T = +2.8Vdc R = +3.0Vdc L = +3.3Vdc 3 [See table below for standard frequencies available.] FREQUENCY TUNING (AFC) T = TCXO (no AFC) A = ± 5 ppm 4 FREQUENCY STABILITY * 05 10 15 20 25 = = = = = ± ± ± ± ± OPERATING TEMPERATURE RANGE 0.5 ppm 1 1.0 ppm 2 1.5 ppm 2.0 ppm 2.5 ppm (std) H = -10°C to +60°C C = -20°C to +70°C D = -30°C to +85°C (std) I = -40°C to +85°C * Frequency vs. Temperature Only 1] Only available with temperature range codes "H" and "C". 2] Only available with temperature range codes "H", "C" and "D". 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. 13.000000 16.367667 Document No. 008-0371-0 M520 Standard Frequencies 16.368000 19.200000 26.000000 16.369000 20.000000 38.400000 Page 1 - 4 www.ctscorp.com 40.000000 Rev. C Model 520 TCXO/VCTCXO – Clipped Sine Wave ELECTRICAL CHARACTERISTICS PARAMETER Maximum Supply Voltage Maximum Control Voltage Storage Temperature Frequency Range Frequency Stability Frequency Stability vs. Initial Calibration vs. Supply Voltage vs. Load vs. Reflow Shift SYMBOL VCC VC ELECTRICAL PARAMETERS Control Voltage Frequency Tuning [VCTCXO Only] VC Input Impedance Output Waveform Output Voltage Levels Output Load Start Up Time Phase Noise Document No. 008-0371-0 MIN -0.5 -0.5 - -40 TSTG fO Δf/fO - vs. Aging Operating Temperature Order Code 'W' Order Code 'H' Order Code 'C' Order Code 'D' Order Code 'I' Supply Voltage Order Code 'M' Order Code 'N' Order Code 'T' Order Code 'R' Order Code 'L' Supply Current CONDITIONS Std frequencies listed in Ordering Information Frequency vs. Temperature Only @25°C ±5% change ±10% change After 2 reflows 1st year 10 year TA VCC ICC VC ZVC VO RL // CL TS - 10 - - ±5% 10.00 MHz - 25.99 MHz 26.00 MHz - 52.00 MHz 2.5V, 2.8V, 3.0V, 3.3V 1.8V Specified VC Range AC coupled Clipped Sinewave - TYP - MAX 6.0 VCC - 85 52 0.5, 1.0, 1.5 2.0, 2.5 °C MHz ± ppm - 2.0 0.2 0.2 2.0 1.0 10.0 0 -10 -20 -30 -40 25 55 60 70 85 85 1.77 2.38 2.66 2.85 3.14 0.4 0.3 5.0 1.8 2.5 2.8 3.0 3.3 1.5 0.9 - 1.83 2.63 2.94 3.15 3.47 2 2.5 2.4 1.5 - ± ppm 500 - - kOhm 0.8 10 kOhm // 10 pF Vp-p - - 2 Varies based on output frequency. See example plot @ 19.2 MHz below. Page 2 - 4 UNIT V V ± ppm °C V mA V ms dBc/Hz Rev. C Model 520 TCXO/VCTCXO – Clipped Sine Wave ELECTRICAL CHARACTERISTICS D.U.T. PIN ASSIGNMENTS PIN SYMBOL 1 VC 2 3 4 GND Output VCC TEST CIRCUIT – RL//CL LOAD DESCRIPTION GND – TCXO [Note 1] Control Voltage – VCTCXO Circuit & Package Ground Clipped Sine Wave Output [Note 2] Supply Voltage NOTES 1. Connect to ground for TCXO (no AFC) option. 2. DC-Cut Capacitor Required. Add 1000pF capacitor between TCXO output and input of load. * DC-Cut Capacitor MECHANICAL SPECIFICATIONS PACKAGE DRAWING MARKING INFORMATION 1. M520 - CTS Model Series. 2. ● – Pin 1 identifier. 3. D – Date code. See Table I for codes. 4. XXX – Frequency code. Reference CTS document 016-1454-01. M520 ● DXXX Complete CTS part number, frequency value and date code information must appear on reel and carton labels. NOTES 1. DO NOT make connections to nonlabeled pins and castellations, as they may have internal connections used in the manufacturing process. 2. Termination pads (e4); barrier plating is nickel (Ni) with gold (Au) flash plate. 3. Reflow conditions per JEDEC JSTD-020, 260°C maximum. SUGGESTED SOLDER PAD GEOMETRY CBYPASS should be ≥ 0.01 uF. TABLE I – DATE CODE MONTH JAN YEAR FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC M 2001 2005 2009 2013 2017 A B C D E F G H J K L 2002 2006 2010 2014 2018 N P Q R S T U V W X Y Z 2003 2007 2011 2015 2019 a b c d e f g h j k l m 2004 2008 2012 2016 2020 n p q r s t u v w x y z Document No. 008-0371-0 Page 3 - 4 Rev. C Model 520 TCXO/VCTCXO – Clipped Sine Wave PACKAGING INFORMATION [Reference] Device quantity is 1k pieces minimum and 3k maximum per 180mm reel. Document No. 008-0371-0 Page 4 - 4 Rev. C