DS4077 MAXIM | Alldatasheet

Document overview

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Technical content

Features

♦ 77.76MHz (fNOM) Frequency ♦ 3.135V to 3.465V Operation ♦ Low Jitter: <1ps RMS ♦ ±69ppm Absolute Pull Range (APR) ♦ LVCMOS Output Buffer ♦ Minimum ±110ppm Tuning Range (+25°C) ♦ Available in Commercial or Industrial Temperature Ranges ♦ 14mm x 9mm x 3.06mm Plastic LGA Package DS4077 77.76MHz VCXO N.C. LVCMOSVSS 9 8 7 6V DD 5 N.C. VC (TRANSFER-MOLDED PLASTIC PACKAGE) LGA TOP VIEW DS4077 Pin Configuration

Applications

Rev 0; 8/05 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PACKAGE TOP MARK* DS4077L-0C0 0°C to +70°C 9 LGA DS4077L-0C0 DS4077L-0CN -40°C to +85°C 9 LGA DS4077L-0CN *The top mark includes an “N” for industrial temperature grade devices. Clock-Data Recovery in Telecom/Datacom Reference Clock Generation in Base Stations and Wireless Applications Block Diagram VDD LVCMOS OUTPUT VARACTOR OSC CONTROL CRYSTAL VC DS4077

77.76MHz VCXO ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 3.135V to 3.465V, T A = -40°C to +85°C or 0°C to +70°C, unless otherwise noted.) (Typical values at +25°C, V DD = 3.3V, unless otherwise noted.) (Note 1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Operating Temperature Range Thermal Resistance Soldering Temperature (reflow, 2 passes max)....See IPC/JEDEC STD-020 Specification PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VDD Operating Supply Range V DD 3.135 3.3 3.465 V VDD Supply Current I DD Output open 20 30 mA Frequency f OUT VC = 1.6V, VDD = 3.3V, TA = +25°C, LOAD = 10pF fNOM –8ppm fNOM fNOM +8ppm MHz Frequency vs. VDD Sensitivity VDDppm VDD = 3.3V ±5% -3.5 +11.5 ppm Frequency vs. Load Sensitivity LOADpmm 10pF to 20pF (Note 2) -1 ppm Frequency vs. Temperature TEMPppm From +25°C -20 +20 ppm VC Voltage Range VCRANGE 0.3 1.60 2.8 V Frequency Tuning Sensitivity VC SEN (Note 3) 41 164 ppm/V Tuning Voltage Bandwidth VC BW (Note 2) 10 kHz Absolute Pull Range f TUNE VC = 0.3V to 2.8V, LOAD = 10pF -69 +69 ppm VC Input Leakage I LCV VC = 0V to VDD -500 +500 nA Aging, First Year AGEppm -5 +5 ppm Aging, Years 0–10 t AGE Total aging -10 +10 ppm

77.76MHz VCXO ELECTRICAL CHARACTERISTICS (continued) (VDD = 3.135V to 3.465V, T A = -40°C to +85°C or 0°C to +70°C, unless otherwise noted.) (Typical values at +25°C, V DD = 3.3V, unless otherwise noted.) (Note 1) Note 1: Limits at -40°C are guaranteed by design and not production tested. Note 2: Guaranteed by design and not production tested. Note 3: Tuning linearity typically better than ±10%. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LVCMOS OUTPUT Output Logic 0 V OL Output Current -450µA 0 0.4 V Output Logic 1 V OH Output Current +450µA VDD - 0.8V VDD V Output Rise Time t R Load condition: 10pF to ground; 10% to 90% VDD (Note 2) 2n s Output Fall Time t F Load condition: 10pF to ground; 90% to 10% VDD (Note 2) 2n s Duty Cycle D CYC Load condition: 10pF, VDD / 2 (Note 2) 40 60 % Harmonics H V DD = 3.3V, TA = +25°C (Note 2) -18 -8 dBc/Hz SSB PHASE NOISE AND JITTER, VDD = 3.3, TA = +25°C (Note 2) 10Hz Offset -74 100Hz Offset -105 1kHz Offset -130 10kHz Offset -147 100kHz Offset LVCMOS -150 dBc/Hz Jitter (12kHz to 80MHz) 1 psRMS Pin Description PIN NAME FUNCTION 1V C VCXO Control Voltage 2, 5, 7, 8, 9 N.C. No Connection 3V SS Ground

4 LVCMOS LVCMOS Output

77.76MHz VCXO Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circu it patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc. is a registered trademark of Dallas Semiconductor Corporation.

Package Information

(For the latest package information, go to www.maxim-ic.com/DallasPackInfo and click on package drawing 56-G6034-001.) Typical Operating Characteristics (VCC = +3.3V, TA = +25°C, unless otherwise noted.) FREQUENCY vs. TEMPERATURE DS4077 toc01 TEMPERATURE (°C) fOUT DEVIATION (ppm) 6040200-20 -10 -40 80 fOUT = 77.76MHz OUTPUT FREQUENCY vs. LOAD CAPACITANCE vs. VC DS4077 toc02 VC (V) fOUT DEVIATION (ppm) -50 -75 -100 125 100 -25 150 -125 0.3 CL = 0pF CL = 20pF fOUT = 77.76MHz OUTPUT FREQUENCY vs. SUPPLY VOLTAGE vs. VC DS4077 toc03 VDD (V) fOUT DEVIATION FROM VDD = 3.3V (ppm) -10 -15 -20 3.135 fOUT = 77.76MHz TA = +25°C VC = 0.3V VC = 2.8V VC = 1.6V