TF16 Series Tuning Fork Crystal FEATURES • • • • • • • • • 32.7680 kHz Frequency Reference Package Size 1.6mm x 1.0mm Tuning Fork Crystal Design Hermetic Ceramic Package Frequency Tolerance, ±20 ppm Standard [±10 ppm available] Frequency Temperature Coefficient, -0.030ppm/°C2 Operating Temperature, -40°C to +85°C Standard Tape & Reel Packaging, EAI-481 RoHS/Green Compliant (6/6) APPLICATIONS The TF16 crystal series is ideal for use in a wide range of communication equipment, notebooks, computer peripherals, audio visual, Bluetooth and other wireless applications, USB interfaces, PDAs and automotive electronics. ORDERING INFORMATION TF 1 6 3 2 K 7 6 8 0 PACKAGE SIZE PACKAGING OPTIONS T - 1k pcs./reel R - 3k pcs./reel U - 5k pcs./reel 16 = 1.6mm x 1.0mm FREQUENCY TOLERANCE @ 25°C 1 = ± 10 ppm 2 = ± 20 ppm [standard] FREQUENCY IN kHz K - indicates kHz and decimal point. 1 LOAD CAPACITANCE P = 12.5 pF [standard] J = 9 pF 1] Frequency is recorded with two leading digits before the ‘K’ and 4 significant digits after the ‘K’ (including zeros). Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. PACKAGING INFORMATION [Reference] Factory may package reels in quantities of 1k pcs., 3k pcs. or 5k pcs. Reel size is 180mm. Document No. 008-0416-0 Page 1- 3 www.ctscorp.com Rev. C TF16 Series Tuning Fork Crystal ELECTRICAL PARAMETERS ELECTRICAL CHARACTERISTICS PARAMETER Frequency Operating Mode Frequency Tolerance * Frequency Temperature Coefficient Frequency Stability Operating Temperature Range Turnover Temperature Load Capacitance * Aging Drive Level Shunt Capacitance Motional Capacitance Series Resistance Insulation Resistance Storage Temperature Range SYMBOL f0 Δf/f0 Δf/fM CONDITIONS @+25°C TA TM CL Δf/f0 DL C0 C1 R1 Ri TSTR ±5°C Standard @+25°C, 1st year @1 MHz +100Vdc ±15Vdc MIN TYP MAX 32.7680 Flexural Mode [Tuning Fork] 20 -0.030 ±0.01ppm/°C2 See Figure 1 -40 +85 +25 12.5 3.0 0.1 0.5 7.0 6.0 90 500 -55 +125 UNIT kHz ± ppm °C °C pF ± ppm µW pF fF k Ohms M Ohms °C * See Ordering Information for available options. FIGURE 1 PARABOLIC TEMPERATURE CURVE 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 -10 -20 -30 -40 Frequency stability [ppm] is determined using parabolic curve, Δf = Temperature Coefficent(TA-TM)2. Δf/f [ppm] -50 -60 Ex. Find frequency stability at TA = 45°C Δf = -0.030(45-25)2 Δf = -0.030(20)2 Δf = -12.0 ppm -70 -80 -90 -100 -110 -120 -130 Temperature [°C] Document No. 008-0416-0 Page 2 - 3 Rev. C TF16 Series Tuning Fork Crystal MECHANICAL SPECIFICATIONS TF20 PACKAGE DRAWING TF16D MARKING INFORMATION 1. TF16 - CTS Model Series. 2. D – Date code. See Table I for codes. 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 SUGGESTED SOLDER PAD GEOMETRY Document No. 008-0416-0 NOTES 1. Complete CTS part number, frequency value, date code and manufacturing site code information must appear on reel and carton labels. 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, 20 seconds. 4. MSL = 1. Page 3 - 3 Rev. C