520 CTS | Alldatasheet
Document overview
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Technical content
Document No. 008-0371-0 Page 1 - 4 Rev. C www.ctscorp.com 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
3] Frequency is recorded with two leading digits before the ‘M’ and 4 significant digits after the ‘M’ (including zeros). 1] Only available with temperature range codes "H" and "C". Not all performance combinations and frequencies may be available. M = +1.8Vdc N = +2.5Vdc T = +2.8Vdc R = +3.0Vdc L = +3.3Vdc Contact your local CTS Representative or CTS Customer Service for availability. T = TCXO (no AFC) A = ± 5 ppm 4 2] Only available with temperature range codes "H", "C" and "D". [Ex. XXMXXXX (10M0000), XXMXXXX (16M3840)] 4] See Electrical Characteristics for Control Voltage range per Supply Voltage selected. FREQUENCY STABILITY * 05 = ± 0.5 ppm 1 10 = ± 1.0 ppm 2 15 = ± 1.5 ppm 20 = ± 2.0 ppm 25 = ± 2.5 ppm (std) OPERATING TEMPERATURE RANGE 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 SUPPLY VOLTAGE FREQUENCY IN MHz M - indicates MHz and decimal point. 3 [See table below for standard frequencies available.] FREQUENCY TUNING (AFC) M520 16.367667 16.369000 20.000000 38.400000 M520 Standard Frequencies
Document No. 008-0371-0 Page 2 - 4 Rev. C Model 520 TCXO/VCTCXO – Clipped Sine Wave
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Maximum Supply Voltage VCC - -0.5 - 6.0 V Maximum Control Voltage VC -- 0 . 5 - VCC V Storage Temperature TSTG -- 4 0 - 8 5 ° C Frequency Range fO Std frequencies listed in Ordering Information 10 - 52 MHz Frequency Stability Δf/fO Frequency vs. Temperature Only ± ppm Frequency Stability vs. Initial Calibration @25°C -- 2 . 0 vs. Supply Voltage ±5% change -- 0 . 2 vs. Load ±10% change -- 0 . 2 vs. Reflow Shift After 2 reflows -- 2 . 0 1st year -- 1 . 0 10 year - - 10.0 Operating Temperature Order Code 'W' 05 5 Order Code 'H' -10 60 Order Code 'C' -20 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 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 26.00 MHz - 52.00 MHz - - 2.5 1.8V 0.3 0.9 1.5 Frequency Tuning [VCTCXO Only] - Specified VC Range 5.0 - - ± ppm VC Input Impedance ZV C - 500 - - kOhm Output Waveform AC coupled Clipped Sinewave Output Voltage Levels VO 0.8 - - Vp-p Output Load RL // CL - Start Up Time TS -- - 2 m s Phase Noise - dBc/Hz VC V V ICC mA 10 kOhm // 10 pF ELECTRICAL PARAMETERS 0.5, 1.0, 1.5 2.0, 2.5 - ± ppm vs. Aging TA -° C VCC Varies based on output frequency. See example plot @ 19.2 MHz below.
Document No. 008-0371-0 Page 3 - 4 Rev. C Model 520 TCXO/VCTCXO – Clipped Sine Wave TEST CIRCUIT – RL//CL LOAD * DC-Cut Capacitor D.U.T. PIN ASSIGNMENTS PIN SYMBOL DESCRIPTION GND – TCXO [Note 1] 1 V C Control Voltage – VCTCXO
2 GND Circuit & Package Ground
3 Output Clipped Sine Wave Output [Note 2]
4 V CC Supply Voltage
- Connect to ground for TCXO (no AFC) option. 2. DC-Cut Capacitor Required. Add 1000pF capacitor between TCXO output and input of load. TABLE I – DATE CODE 2001 2005 2009 2013 2017 A B C D E F G H J K L M 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 MONTH JAN FEB MAR DEC YEAR AUG SEP OCT NOVAPR MAY JUN JUL PACKAGE DRAWING M520
- DXXX 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. Complete CTS part number, frequency value and date code information must appear on reel and carton labels. NOTES 1. DO NOT make connections to non- labeled 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 J- STD-020, 260°C maximum. SUGGESTED SOLDER PAD GEOMETRY CBYPASS should be ≥ 0.01 uF.
Document No. 008-0371-0 Page 4 - 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.