Model 525 Temperature Compensated Crystal Oscillator FEATURES • • • • • • • • • • Clipped Sine Wave Output Optional Voltage Control for Frequency Tuning [VCTCXO] 3.2mmx2.5mm Surface Mount Package Frequency Range 10 – 40 MHz [Standard Frequencies List Shown Below] Fundamental Crystal Design Frequency Stability, several options to choose from ±0.5ppm ~ ±2.5ppm Operating Voltage, +1.8Vdc ~ +3.3Vdc Operating Temperature to -40°C to +85°C Tape & Reel Packaging Available RoHS/Green Compliant (6/6) APPLICATIONS The Model 525 Temperature Compensated Crystal Oscillator (TCXO) is a quartz based, clipped sine wave output, digital temperature compensated oscillator with optional frequency tuning, in a hermetically sealed ceramic package. M525 is suitable for wireless communications, broadband access, WLAN/WiMax/WIFI, portable equipment, test and measurement and mobile applications. ORDERING INFORMATION M 525 FREQUENCY IN MHz SUPPLY VOLTAGE M - indicates MHz and decimal point. M = +1.8Vdc N = +2.5Vdc Y = +2.7Vdc T = +2.8Vdc R = +3.0Vdc L = +3.3Vdc FREQUENCY TUNING (AFC) T = TCXO (no AFC) A = ± 5 ppm 3 FREQUENCY STABILITY * 05 10 15 20 25 = = = = = ± ± ± ± ± 2 [See table below for standard frequencies available.] OPERATING TEMPERATURE RANGE 1 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 0.5 ppm 1.0 ppm 1.5 ppm 2.0 ppm 2.5 ppm (std) * Frequency vs. Temperature Only 1] Only available with temperature range codes "H" and "C". 2] Frequency is recorded with two leading digits before the ‘M’ and 4 significant digits after the ‘M’ (including zeros). [Ex. XXMXXXX (10M0000), XXMXXXX (16M3840)] 3] 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. M525 Standard Frequencies 10.000 MHz 14.7456 MHz 16.369 MHz 20.000 MHz 26.000 MHz 38.400 MHz 12.800 MHz 16.3676 MHz 16.800 MHz 24.5535 MHz 27.000 MHz 38.880 MHz 13.000 MHz 16.367667 MHz 19.200 MHz 24.576 MHz 30.000 MHZ 40.000 MHz 14.400 MHz 16.368 MHz 19.440 MHz 25.000 MHz 33.600 MHz Document No. 008-0334-0 Page 1 - 4 www.ctscorp.com Rev. B Model 525 TCXO/VC-TCXO – 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 fO Δf/fO - ELECTRICAL PARAMETERS Start Up Time Phase Noise Document No. 008-0334-0 TYP - MAX 6.0 VCC - -40 - 85 Std frequencies listed in Ordering Information VCC ZVC VO RL // CL TS - 10 Frequency vs. Temperature Only @25°C ±5% change ±10% change After 2 reflows 1st year 10 year TA Control Voltage Frequency Tuning [VCTCXO Only] VC Input Impedance Output Waveform Output Voltage Levels Output Load MIN -0.5 -0.5 TSTG vs. Aging Operating Temperature Order Code 'H' Order Code 'C' Order Code 'D' Order Code 'I' Supply Voltage Order Code 'M' Order Code 'N' Order Code 'Y' Order Code 'T' Order Code 'R' Order Code 'L' Supply Current CONDITIONS - - - ±5% 10.00 MHz - 25.99 MHz 26.00 MHz - 40.00 MHz VCC = 1.8V VCC = 2.5V VCC = 2.7V - 3.3V Per given VC range. AC coupled Clipped Sinewave - 40 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 -10 -20 -30 -40 25 60 70 85 85 1.71 2.38 2.57 2.66 2.85 3.14 0.3 0.4 0.5 5.0 1.8 2.5 2.7 2.8 3.0 3.3 0.9 1.4 1.5 - 1.89 2.63 2.84 2.94 3.15 3.47 2.0 2.5 1.5 2.4 2.5 - ± ppm 500 - - kOhm 0.8 10 kOhm // 10 pF Vp-p - - 5 Varies based on output frequency. See example plot @ 19.44 MHz below. Page 2 - 4 UNIT V V ± ppm °C V mA V ms dBc/Hz Rev. B Model 525 TCXO/VC-TCXO – 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 Control Voltage – VCTCXO [Note 1] GND - TCXO Circuit & Package Ground Clipped Sine Wave Output Supply Voltage + - mA 4 + + POWER SUPPLY 0.01uF VM - 3 10K Ω D.U.T. 10pF Including probe capacitance. 1 NOTES 1. Connect to ground for TCXO (no AFC) option. 2 Control Voltage - VC-TCXO GND - TCXO MECHANICAL SPECIFICATIONS PACKAGE DRAWING (3.2 ±0.15) 0.126 ±0.006 M525 ● CDXXX PIN 1 IDENTIFIER (1.7) 0.067 (2.5 ±0.15) 0.098 ±0.006 (3.2 ±0.15) 0.126 ±0.006 (0.70) 0.028 3 4 2 1 M525 ● CDXXX (0.60) 0.024 (2.5 ±0.15) 0.098 ±0.006 (2.3) 0.091 (1.0) MAX 0.039 (1.0) MAX 0.039 Key: (mm) Inch (0.4) 0.002 (2.25) 0.089 Package A MARKING INFORMATION 1. M525 - CTS Model Series. 2. ● – Pin 1 identifier. 3. C – CTS identifier. 4. D – Date code. See Table I for codes. 5. XXX – Frequency code. See Table II for codes. 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. 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 JSTD-020, 260°C maximum. 4. Required: 1000pF capacitor between the TCXO output and input of load. (0.4) 0.002 1 2 4 3 (0.85) 0.033 (0.49) 0.019 (0.85) 0.033 Key: (mm) Inch Package B 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. 008-0334-0 Page 3 - 4 Rev. B Model 525 TCXO/VC-TCXO – Clipped Sine Wave MECHANICAL SPECIFICATIONS TABLE II – FREQUENCY CODING SUGGESTED SOLDER PAD GEOMETRY 0.039 [1.00] FREQUENCY MARKING CODE FREQUENCY MARKING CODE FREQUENCY MARKING CODE FREQUENCY MARKING CODE 10.000 MHz 100 16.367 MHz 16A 19.800 MHz 198 30.720 MHz 307 10.240 MHz 102 16.3676 MHz 16E 19.998 MHz 199 32.000 MHz 320 12.000 MHz 120 16.367667 MHz 16B 20.000 MHz 200 32.512 MHz 325 12.288 MHz 122 16.368 MHz 16C 20.480 MHz 204 32.768 MHz 327 12.800 MHz 128 16.369 MHZ 16D 21.000 MHz 210 33.600 MHz 336 13.000 MHz 130 16.384 MHz 163 24.000 MHz 240 36.000 MHz 360 13.500 MHz 135 16.800 MHz 168 24.5535 MHz 24B 38.400 MHz 384 14.000 MHz 140 18.000 MHz 180 24.576 MHz 24C 38.880 MHz 388 40.000 MHz 400 14.400 MHz 144 18.432 MHz 184 25.000 MHz 250 14.7456 MHz 147 19.200 MHz 192 26.000 MHz 260 15.360 MHz 153 19.440 MHz 194 27.000 MHz 270 16.000 MHz 160 19.680 MHz 196 30.000 MHz 300 .035 [0.90] C BYPASS 4 3 0.106 [2.70] 1 2 Key: 0.134 [3.40] [mm] Inch CBYPASS should be ≥ 0.01 uF. Not all frequencies listed may be available for this design. PACKAGING INFORMATION Device quantity is 3,000 pieces per 180mm reel. 4.0 4.0 Ø1.50 1.75 1.40 Ø13 120° 8.0 3.50 Ø60 2.80 Ø180 Ø23 DIRECTION OF FEED Dimensions in Millimeters ENVIRONMENTAL SPECIFICATIONS Temperature Cycle: 400 cycles from –55°C to +125°C, 10 minute dwell at each temperature, 1 minute transfer time between temperatures. Mechanical Shock: 1,500g’s, 0.5mS duration, ½ sinewave, 3 shocks each direction along 3 mutually perpendicular planes (18 total shocks). Sinusoidal Vibration: 0.06 inches double amplitude, 10 to 55 Hz and 20g’s, 55 to 2,000 Hz, 3 cycles each in 3 mutually perpendicular planes (9 times total). Gross Leak: No leak shall appear while immersed in an FC40 or equivalent liquid at +125°C for 20 seconds. Fine Leak: Mass spectrometer leak rates less than 2x10-8 ATM cc/sec air equivalent. Resistance to Solder Heat: Product must survive 3 reflows of +250°C maximum, 10 seconds maximum. High Temperature Operating Bias: 2,000 hours at +125°C, disregarding frequency shift. Frequency Aging: 1,000 hours at +85°C. Insulation Resistance: 500M Ohms @ 100VDC ±15VDC. Moisture Sensitivity Level: Level 1 per JEDEC J-STD-020. Document No. 008-0334-0 Page 4 - 4 Rev. B