M670

M670 ICST | Alldatasheet

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M670 Datasheet Rev 12.1 Revised 09Apr2003 Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400 M670 VOLTAGE CONTROLLED SAW OSCILLATOR Integrated Circuit Systems, Inc. Product Data Sheet GENERAL DESCRIPTION The M670 is a VCSO (Voltage Controlled SAW Oscillator) frequency source for low-jitter clock generation. Its integrated SAW (surface acoustic wave) delay line provides low phase jitter. The M670 is available in a range of center frequencies. Minimum pull-range is ±50 ppm (wider pull-range available). The M670 is well suited for phase-locked loop implementations, clock and data recovery circuits, and other timing applications for the telecom and optical fiber networking markets (e.g., OC-48, OC-192).

FEATURES

◆ VCSO center frequencies from 155 to 700 MHz (Specify center frequency at time of order) ◆ Low phase jitter 0.19ps rms typical (50kHz-80MHz) ◆ Low phase noise -70dBc/Hz @ 1kHz offset ◆ Differential 3.3V LVPECL output ◆ Single 3.3V power supply ◆ Very small 5 x 7mm SMT (surface mount) package PIN ASSIGNMENT (5 x 7mm SMT) Figure 1: Pin Assignment BLOCK DIAGRAM Figure 2: Block Diagram Sample of Available Output Frequencies VCSO Center Frequency1 (MHz) Note 1: Specify VCSO center frequency at time of order

Applications

622.0800 SONET/SDH

625.0000 Gigabit Ethernet

644.5313 Gigabit Ethernet FEC

669.3265 SONET/SDH FEC

Table 1: Sample of Available Output Frequencies M670 (Top View)1 CLK_EN VIN GND VCC FOUT nFOUT CLK_EN VIN FOUT nFOUT SAW Delay Line Phase Shifter M670 M670 Voltage Controlled SAW Oscillator

M670 Datasheet Rev 12.1 2 of 6 Revised 09Apr2003 Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M670 VOLTAGE CONTROLLED SAW OSCILLATOR Product Data Sheet PIN DESCRIPTIONS Number Name I/O Configuration Description 1V I N Input Tuning control voltage. 2C L K _ E N Input Clock enable: Logic 1 enables normal operation. Logic 0 stops the output clock; nFOUT is held high, FOUT is held low. 3G N D Ground Power supply ground connections. FOUT nFOUT Output No internal terminator Clock output pair. Differential LVPECL. 6V C C Power Power supply connection, connect to + 3.3V. Table 2: Pin Descriptions ABSOLUTE MAXIMUM RATINGS1 Note 1:Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings ard stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in Recommended Conditions of Operation, DC Characteristics, or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Symbol Parameter Rating Unit VI Inputs -0.5 to VCC +0.5 V VO Outputs -0.5 to VCC +0.5 V VCC Power Supply Voltage 3.63 V TS Storage Temperature -55 to +125 oC Table 3: Absolute Maximum Ratings RECOMMENDED CONDITIONS OF OPERATION Symbol Parameter Min Typ Max Unit VCC Positive Supply Voltage 2.97 3.3 3.63 V TA Ambient Operating Temperature -40 25 +85 oC Table 4: Recommended Conditions of Operation

M670 Datasheet Rev 12.1 3 of 6 Revised 09Apr2003 Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400 M670 VOLTAGE CONTROLLED SAW OSCILLATOR Product Data Sheet Integrated Circuit Systems, Inc. ELECTRICAL SPECIFICATIONS DC Characteristics Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Frequency =622-695MHz, Outputs terminated into 180Ω to ground Symbol Parameter Pin Min Typ Max Unit Power Supply VCC Positive Supply Voltage VCC 2.97 3.3 3.63 V ICC Power Supply Current 80 100 mA Control Voltage VIN Input Control Voltage Range VIN

0 Vcc V

VIN Input Impedence 100 kΩ VIN Modulation Bandwidth 500 kHz Clock Enable Pull-up VIH Input High Voltage CLK_EN 2 Vcc + 0.3 V VIL Input Low Voltage -0.3 0.8 V IIH Input High Current 5 µA IIL Input Low Current -150 µA Rpullup Internal Pull-up Resistor 51 kΩ Differential Outputs VOH Output High Voltage FOUT, nFOUT Vcc - 0.98 Vcc - 0.75 V VOL Output Low Voltage Vcc - 1.95 Vcc - 1.63 V VP-P Peak to Peak Output Voltage 0.4 0.6 0.85 VP-P IOUT Output Current 20 mA Table 5: DC Characteristics AC Characteristics Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Frequency =622-695MHz, Outputs terminated into 180Ω to ground Symbol Parameter Min Typ Max Unit Notes Frequency FOUT Output Center Frequency Range 155 700 MHz fSTAB Frequency Stability 110 ppm p-p LIN Tuning Linearity 6 % KVCO VCO Gain @622.08MHz 265 ppm/V VIN = 0.3 to 3.0V Best fit straight line Outputs Non-harmonic Spurious -50 -70 dBc Φ n SSB Phase Noise offset from carrier 100Hz Offset -43 dBc/Hz 1kHz Offset -70 dBc/Hz 10kHz Offset -98 dBc/Hz 100kHz Offset -124 dBc/Hz J(t) Jitter (rms) 12kHz to 20MHz 0.36 ps rms 50kHz to 80MHz 0.19 ps rms odc Output Duty Cycle 2 45 55 % tR Output Rise Time 2 for FOUT, nFOUT 300 400 ps 20% to 80% tF Output Fall Time 2 for FOUT, nFOUT 300 400 ps 20% to 80% Table 6: AC CharacteristicsNote 1: Consult ICS for availability of other APRs. Note 2: See Parameter Measurement Information on pg. 4.

M670 Datasheet Rev 12.1 5 of 6 Revised 09Apr2003 Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400 M670 VOLTAGE CONTROLLED SAW OSCILLATOR Product Data Sheet Integrated Circuit Systems, Inc. DEVICE PACKAGE - 5 x 7mm SMT (Surface Mount) Package Mechanical Dimensions: Figure 9: Device Package - 5 x 7mm SMT (Surface Mount) Package

ORDERING INFORMATION

Standard Output Frequencies Consult ICS for the availability of other VCSO frequencies. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which wou ld result from its use. No other circuits, patents, or licenses ar e implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices o r critical medical instruments. Dimensions are in mm; dimensions in [ ] are in inches Unless otherwise specified, all dimensions are ±0.13 [0.005] For Output Frequency (MHz) Order Part Number xxx.xxxx M670-xxx.xxxx e.g., 622.0800 M670-622.0800 Table 7: Ordering Information 155.5200 622.0800 156.2500 625.0000 156.8324 627.3296 161.1328 644.5313 166.6286 666.5143 167.2820 669.1281 167.3280 669.3120 167.3316 669.3265 167.7097 670.8386 168.0400 672.1600 172.6423 690.5692 173.3708 693.4830 Table 8: Standard Output Frequencies

M670 Datasheet Rev 12.1 6 of 6 Revised 09Apr2003 Integrated Circuit Systems, Inc. ● Communications Modules ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M670 VOLTAGE CONTROLLED SAW OSCILLATOR Product Data Sheet