MERCURY “ T C X O” and “V C T C X O” Since 1973 What is a TCXO ? By the integration of a resistor / capacitor compensation network and a sensor circuitry, the frequency stability of a crystal oscillator (XO) can be improved by about 100 times. The resultant reactance change from the compensation network offsets the frequency-temperature (F-T) characteristics of the crystal. The F-T characteristics is unique to individual crystal, therefore each unit is individually temperature compensated in the TCXO manufacturing. At Mercury, our computerized temperature cycling chambers, data acquisition system and unique network calculation software allow us to produce low cost and high quality TCXOs. Most importantly, it is Mercury crystal inside. Crystal From Compensation ∆f f After Compensation A Output C B Temperature(°c) A + (-B) = C Before Compensation Compensation Network Oscillator Product Features: ♦ Variety of packages to choose from including hermetically sealed, non-hermetically sealed, thru-hole and SMD ♦ Electronic frequency tuning (for VCTCXO): The output frequency can be tuned up or down electronically by the control voltage applied on the voltage control pin. ♦ Mechanical frequency tuning (for TCXO and VCTCXO): Trimmer (variable capacitor) is used to adjust the output frequency mechanically. ♦ Unique crystal design to achieve lowest possible phase noise, aging and frequency perpetration ♦ Quick-turn service available: 1~4 weeks for selected packages. Custom or standard frequencies. ♦ Applications include mobile phones, PHS, GPS, instrumentation and broadband access. MERCURY www.mercury-crystal.com Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: [email protected] U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected] MERCURY Page 1 of 9 Date: Sept. 15, 2003 Rev. 1 “ T C X O” and “V C T C X O " Wave Form: Clipped Sine Wave MERCURY Since 1973 CLIPPED SINE Product Summary: Output Wave Form: Clipped Sine Wave TCXO VCTCXO Available Frequency Range M38S M39S M14S M15S VM38S VM39S VM14S VM15S 9.6 ~ 26 MHz 9.6 ~ 26 MHz 9.6 ~ 26 MHz 9.6 ~ 26 MHz M8S VM8S 10.0 ~ 26 MHz M19S M48S M58S M78S VM19S VM48S VM58S VM78S 9.6 ~ 26 MHz 1.0 ~ 80 MHz 1.0 ~ 80 MHz 1.0 ~ 80 MHz M55S M47S VM55S VM47S 9.6 ~ 26 MHz 9.6 ~ 26 MHz M24S VM24S 9.6 ~ 26 MHz M25S VM25S 9.6 ~ 26 MHz M28S VM28S 10.0 ~ 26 MHz M62S M42S M64S M44S M57S M53S VM62S VM42S VM64S VM44S VM57S VM53S 10.0 ~ 26 MHz 10.0 ~ 26 MHz 9.6 ~ 26 MHz 9.6 ~ 26 MHz 10.0 ~ 26 MHz 12.8 ~20 MHz Package size (mm), L x W x seated height Thru-Hole Types 4 pin DIP 11.7 x 18.4 x 7.3 4 pin DIP 11.7 x 18.3 x 4.7 4 pin DIP. Hermetically sealed. 12.8 x 20.2 x 8.3 4 pin DIP. With trimmer 12.8 x 20.2 x 8.3 4 pin DIP. Half size. Herme12.8 x 12.8 x 8.3 tically sealed. No trimmer 5 pin DIP 19.8 x 19.8 x 10.0 4 pin DIP 24.1 x 24.1 x 7.5 5 pin DIP 24.1 x 24.1 x 7.5 4 pin DIP 24.1 x 24.1 x 7.5 Gull Wing Surface Mount Types 4 pin gull wing 11.7 x 21.3 x 6.6 4 pin gull wing 11.7 x 21.3 x 4.7 4 pin gull wing. Hermetically 12.8 x 20.2 x 9.3 sealed. 4 pin gull wing. With trimmer 12.8 x 20.2 x 9.3 4 pin gull wing. Half size. Her12.8 x 12.8 x 9.3 metically sealed. No trimmer. Leadless Surface Mount Types 6 pad FR4 base. 2.5 mm H 9.6 x 11.4 x 2.5 4 pad FR4 base. 2.5mm H 9.6 x 11.4 x 2.5 6 pad FR4 base. 4.7 mm H 9.6 x 11.4 x 4.7 4 pad FR4 base. 4.7 mm H 9.6 x 11.4 x 4.7 4 pad ceramic base 5.0 x 7.5 x 1.9 4 pad ceramic base 5.0 x 3.2 x 1.5 Package size (inches), L x W x seated height [0.460 x 0.724 x 0.287] [0.460 x 0.724 x 0.185] [0.504 x 0.795 x 0.327] [0.504 x 0.795 x 0.327] [0.504 x 0.504 x 0.327] [0.780 x 0.780 x 0.394] [0.949 x 0.949 x 0.295] [0.949 x 0.949 x 0.295] [0.949 x 0.949 x 0.295] [0.460 x 0.839 x 0.260] [0.460 x 0.839 x 0.185] [0.504 x 0.795 x 0.366] [0.504 x 0.795 x 0.366] [0.504 x 0.504 x 0.366] [0.378 x 0.449 x 0.098] [0.378 x 0.449 x 0.098] [0.378 x 0.449 x 0.185] [0.378 x 0.449 x 0.185] [0.197 x 0.295 x 0.075] [0.197 x 0.126 x 0.059] Note: Frequency tuning by the built-in mechanical trimmer (variable capacitor) is standard for all models except for models M8S, VM8S, M57S, VM57S, M53S and VM53S. Please specify when ordering if trimmer is not required. Note: Because cleaning agent normally degrades the trimmer in the non-hermetically sealed packages, cleaning through washing cycles is not recommended. If cleaning is mandatory please choose hermetically sealed packages or no-trimmer option. MERCURY Page 2 of 9 Date: Sept. 15, 2003 Rev. 1 “ T C X O” and “V C T C X O” Wave Form: Clipped Sine Wave MERCURY Since 1973 General Specifications (at+25°C and specified input voltage) Frequency Range Output Wave From Initial Calibration Tolerance Standard Frequencies (partial list) Frequency Stability vs Temperature vs Aging vs Voltage Change vs Load Change vs reflow (SMD models only) Typical Operating Temperature Range (examples) Mechanical Frequency Tuning Start-Up Time. (reach 90% amplitude and at+25°C±2°C) 9.6 MHz ~ 26.0 MHz Clipped Sine wave. Wave form code is “S” Models with mechanical trimmer: Adjustable to the nominal frequency Models without mechanical trimmer: ±3 ppm at +25°C 9.6, 10.0, 12.8, 13.0, 14.4, 15.36, 16.384, 19.2, 19.440, 19.68 MHz ±1 ppm , ±1.5 ppm, ±2.0 ppm, ±2.5 ppm, ±3 ppm, ±5 ppm, over specified operating temperature range ±1.0 ppm max. first year at +25°C ±0.3 ppm max. for a ±5% input voltage change ±0.3 ppm max. for a ±10% loading condition change ±1 ppm max. 1 reflow and measured 24 hours afterwards 0°C to +60°C 0°C to +70°C -10°C to +60°C -20 °C to +70°C -30°C to +60°C -30°C to +75°C -40°C to +85°C (not available on all frequency stability listed above) ±3 ppm min. (from built-in trimming capacitor) 2 m. sec. Typical, 3 m. sec. max. Supply Voltage (VDD) +3.0 V (voltage code is “3”) Output Voltage Level 0.8 V p-p min. 1.0 V p-p min. 9.6~13 MHz: 1.3 mA max. 9.6~13 MHz: 2.0 mA max. 13.1~20 MHz: 1.5 mA max. 13.1~20 MHz: 2.2 mA max. 20.1~26 MHz: 2.0 mA max. 20.1~26 MHz: 2.5 mA max. ±5~±12 ppm for +1.5 V±1.0 V ±6~±12 ppm for +2.5 V ±2.0 V (up to ±100 ppm is also available (up to ±100 ppm is also available for for some of the packages) some of the packages) Positive: Increase control voltage increases output frequency. Negative slope is also available 10 % max. 10 K Ω // 15 pF M57, M53, VM57, VM53: -10 dB typ. –7 dB max. Other models:-12 dB typ. –9 dB max. DC block, AC coupled -40°C to +85°C VCTCXO only Current Consumption Electrical Frequency Tuning (from voltage control pin) Slope Polarity Linearity Output Load Harmonics Distortion Output Format Storage Temperature +5.0 V (voltage code is “5”) Note 1: Depends on specific frequency, operating temperature range and package style, specifications may vary from model to model. Please contact Mercury if spec. sheet of a particular model is required. Note 2: TCXO products ordered without mechanical and electrical frequency tuning should have a frequency tolerance of ±3 ppm (at +25°C) and the frequency stability over temperature will be from that measured value. MERCURY Page 3 of 9 Date: Sept. 15, 2003 Rev. 1 “ T C X O” and “V C T C X O” Wave Form: Clipped Sine Wave Wave Form – clipped sine wave MERCURY Since 1973 Typical Phase Noise VM53S3-13.000 dBc/Hz -80 -90 -100 -110 Ground -120 -130 -140 -150 10 Hz 1 kHz 100 Hz offset Part Number Format and Examples: Package Code _ or V M_ _ “3” for +3.0 V “5” for +5.0V S “ ” Blank for TCXO “V“ for VCTCXO Supply Voltage M38S5-12.800-1.0/-20+70 Frequency Stability in ± ppm Frequency Wave form code “S” for clipped sine wave Stability Temp. Range Nominal frequency in MHz Operating temp. range in °C represents 12.800 MHz TCXO in M38 package with stability of ±1 ppm from –20°C to +70°C, clipped sine wave output, +5.0V input voltage. VM47S3-13.000-2.5/-30+75 represents 13.0 MHz VCTCXO in M47 package with stability of ±2.5 ppm from –30°C to +75°C, clipped sine wave output, +3.0 V input voltage. Clipped Sine Wave TCXO (VCTCXO) Test Circuit: Vcc 14 SUPPLY VOLTAGE A V 1 + - Oscilloscope 8 Top view 10K ohms 15 pF * Frequency counter 7 * Include all the proble and stray capacitances 0.01 uF CONTROL VOLTAGE MERCURY Page 4 of 9 10 kHz Date: Sept. 15, 2003 Rev. 1