Model 581 Stratum 3 Performance Temperature Compensated Crystal Oscillator FEATURES • • • • • • • • • • HCMOS Output Optional Voltage Control for Frequency Tuning [VCTCXO] 5.0mm x 3.2mm Surface Mount Package Frequency Range 5 – 52 MHz Fundamental Crystal Design Operating Voltage, +3.3Vdc or +5.0Vdc Overall Frequency Stability ±4.6ppm Operating Temperature to -40°C to +85°C Tape & Reel Packaging Standard, EIA-418 RoHS/Green Compliant [6/6] APPLICATIONS The Model 581 is a quartz based analog TCXO with a HCMOS output and optional frequency tuning. M581 is suitable for applications requiring Stratum 3 performance such as base stations, small cells, 1588 and Synchronous Ethernet timing, wireless communications, test and measurement. ORDERING INFORMATION 581 PACKAGING OPTIONS SUPPLY VOLTAGE R = +3.0Vdc S = +5.0Vdc L = +3.3Vdc T - 1k pcs./reel FREQUENCY Product Frequency Code [3 digits] FREQUENCY TUNING [AFC] T = No AFC [TCXO] A = ±5ppm - ±8ppm [VCTCXO] Refer to document 016-1454-0, Frequency Code Tables. OPERATING TEMPERATURE RANGE FREQUENCY STABILITY * X5 = ±0.05ppm 01 = ±0.10ppm 02 = ±0.20ppm W = 0°C to +55°C H = -10°C to +60°C C = -20°C to +70°C D = -30°C to +85°C I = -40°C to +85°C 1 2 X2 = ±0.28ppm 05 = ±0.50ppm * Frequency vs. Temperature Only 1] Only available with temperature range codes "W" and "H". 2] Only available with temperature range codes "W", "H" and "C". Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. PACKAGING INFORMATION [reference] Device quantity is 1k pcs. maximum per 180mm reel. Document No. 008-0541-0 Page 1 - 3 www.ctscorp.com Rev. A Model 581 Stratum 3 TCXO/VC-TCXO – HCMOS ELECTRICAL CHARACTERISTICS PARAMETER Maximum Supply Voltage Maximum Control Voltage Storage Temperature SYMBOL VCC VC CONDITIONS - MIN -0.6 -0.5 TYP - MAX 6.0 VCC UNIT V V TSTG - -40 - +100 °C TA - -20 +70 °C Operating Temperature Order Code 'C' Order Code 'I' -40 fO Frequency Range +25 +85 5 - 52 2.85 3.0 3.15 3.14 3.3 3.47 4.75 5.0 5.25 - - 6.0 Reference to fO, Including 20 years aging - - 4.60 @ +25°C, at time of shipment - - 1.00 [Fmax. - Fmin.]/2, over -40°C to +85°C - - 0.28 ±5% change @ +25°C - - 0.20 - MHz Supply Voltage Order Code 'R' VCC Order Code 'L' ±5% ELECTRICAL PARAMETERS Order Code 'S' ICC Supply Current V mA Frequency Stability Overall Frequency Stability Δf/fO vs. Initial Calibration vs. Operating Temperature vs. Supply Voltage 1 vs. Load Δf/f25 vs. Aging Δf/fO Holdover Control Voltage Frequency Tuning [VCTCXO Only] VC Input Impedance VC - ±5% change - - 0.20 20 years @ +40°C - - 3.00 - - 0.40 0.5 1.5 5-8 2.5 100 - - kOhm 0.1*VCC V [Fmax. - Fmin.]/2, over 24 hours VC = 1.5V ±1.0V, monotonic positive ZVC Output Waveform ± ppm - V ± ppm HCMOS Output Voltage Levels Logic '1' Level VOH HCMOS Load 0.9*VCC - Logic '0' Level VOL HCMOS Load - - CL Output Load Rise and Fall Time TR, TF Output Duty Cycle SYM TS Start Up Time Phase Noise 2 @ 20% - 80% Levels @ 50% Level - - - - - 15 pF - 3.0 6.0 ns 45 - 55 % - - 2 ms dBc/Hz Notes: 1. See Ordering Information for stability options. 2. Phase Noise performance may vary based on output frequency. See example plot at 10MHz below. Document No. 008-0541-0 Page 2 - 3 Rev. A Model 581 Stratum 3 TCXO/VC-TCXO – HCMOS MECHANICAL SPECIFICATIONS MARKING INFORMATION 1. M581 – CTS Model Series. 2. ● – Pin 1 identifier. 3. C – CTS identifier.4. 4. D – Date code. See Table II for codes. 5. xxx – Frequency Code. Refer to document 016-1454-0, Frequency Code Tables. PACKAGE DRAWING M581 ● CDXXX NOTES 1. DO NOT make connections to non-labeled pins. Castellation pins 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 J-STD-020, 260°C maximum. 4. MSL = 1. SUGGESTED SOLDER PAD GEOMETRY D.U.T. PIN ASSIGNMENTS PIN SYMBOL 1 VC 2 3 4 GND Output VCC DESCRIPTION Control Voltage – VCTCXO NC - TCXO Circuit & Package Ground HCMOS Output Supply Voltage TEST CIRCUIT – HCMOS LOAD TABLE II – 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. 008-0541-0 Page 3 - 3 Rev. A