Preliminary Information Integrated Circuit Systems, Inc. M675 VOLTAGE CONTROLLED SAW OSCILLATOR 4 FOUT nFOUT 5 6 M675 M675 2 3 CLK_EN GND (Top View) 1 The M675 is a VCSO (Voltage Controlled SAW Oscillator) frequency source for low-jitter clock generation. An integrated SAW (surface acoustic wave) delay line implements the high-Q VCO (voltage controlled oscillator) function, which results in low output phase noise and very low jitter. The M675-01 is available in a range of center frequencies from 125 to 175 MHz. The M675-02 provides 500 to 700 MHz. Guaranteed minimum pull-range of ±100 ppm meets GbE requirements. (It also fully satisfies ±50 ppm minimum pull-range specification commonly required.) Industry-standard Kvco (VCO Gain) provides full replacement compatibility. The M675 is well suited for phase-locked loop implementations, clock and data recovery circuits, and other timing applications in telecom and optical fiber networking systems (e.g., SONET/SDH). VCC PIN ASSIGNMENT (5 x 7.5mm SMT) VIN GENERAL DESCRIPTION Figure 1: Pin Assignment Sample of Available Output Frequencies VCSO Center Frequencies1 (MHz) M675-01 M675-02 FEATURES ◆ Integrated SAW device ◆ M675-01 output frequencies from 125 to 175 MHz M675-02 output frequencies from 500 to 700 MHz (Specify center frequency at time of order) Applications 155.5200 622.0800 SONET/SDH 156.2500 625.0000 Gigabit Ethernet 161.1328 644.5313 Gigabit Ethernet FEC 167.3316 669.3266 SONET/SDH FEC ◆ Industry-standard Kvco for full compatibility Table 1: Sample of Available Output Frequencies ◆ Low phase jitter 0.2ps rms typical for the M675-02 (50kHz to 80MHz) Note 1: Specify VCSO center frequencies at time of order ◆ Differential 3.3V LVPECL output ◆ Single 3.3V power supply ◆ Small 5 x 7.5mm SMT (surface mount) package BLOCK DIAGRAM M675 M670 SAW Delay Line FOUT Phase Shifter nFOUT VIN CLK_EN Figure 2: Block Diagram M675 Datasheet Rev 0.4 Revised 16Nov2004 M675 Voltage Controlled SAW Oscillator Integrated Circuit Systems, Inc. ● Networking & Communications ● w w w. i c s t . c o m ● tel (508) 852-5400 M675 Integrated Circuit Systems, Inc. VOLTAGE CONTROLLED SAW OSCILLATOR Preliminary Information PIN DESCRIPTIONS Number 1 Name VIN I/O 2 CLK_EN Input 3 GND Ground 4 5 6 FOUT nFOUT VCC Configuration Input Internal pull-up resistor1 Description Frequency control input. Clock enable: Logic 1 enables normal operation. Logic 0 stops the output clock; nFOUT is held high, FOUT is held low. Power supply ground connection. Output No internal terminator Power Clock output pair. Differential LVPECL. Power supply connection, connect to +3.3V. Table 2: Pin Descriptions Note 1: See “Clock Enable Pull-up” in Table 5 (DC Characteristics for M675-01 on pg. 3) and Table 7 (DC Characteristics for M675-02 on pg. 4). ABSOLUTE MAXIMUM RATINGS1 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 TS Storage Temperature 4.6 V -55 to +125 oC Table 3: Absolute Maximum Ratings Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are 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. RECOMMENDED CONDITIONS OF OPERATION Symbol Parameter Min Typ Max Unit 3.63 V VCC Positive Supply Voltage 2.97 3.3 TA Ambient Operating Temperature -40 25 oC +85 Table 4: Recommended Conditions of Operation M675 Datasheet Rev 0.4 Integrated Circuit Systems, Inc. 2 of 6 ● Networking & Communications Revised 16Nov2004 ● w w w. i c s t . c o m ● tel (508) 852-5400 M675 Integrated Circuit Systems, Inc. VOLTAGE CONTROLLED SAW OSCILLATOR Preliminary Information ELECTRICAL SPECIFICATIONS FOR M675-01 DC Characteristics for M675-01 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.s = 155.52 MHz, Outputs terminated into 180Ω to ground Symbol Parameter Power Supply VCC Control Voltage Positive Supply Voltage VCC ICC Power Supply Current VIN Input Control Voltage Range Min Typ Max Unit 2.97 3.3 3.63 V 85 125 mA 3.3 V 0 VIN VIN Input Impedence Clock Enable VIH Pull-up1 VIL Differential Outputs Pin kΩ 100 Input High Voltage 2 Vcc + 0.3 V Input Low Voltage -0.3 0.8 V 5 µA IIH Input High Current IIL Input Low Current Rpullup Internal Pull-up Resistor VOH Output High Voltage VOL Output Low Voltage VP-P Peak to Peak Output Voltage2 IOUT Output Current CLK_EN µA -150 kΩ 51 Vcc - 0.98 FOUT, nFOUT Vcc - 0.75 V Vcc - 1.95 0.450 Vcc - 1.63 V 0.625 0.85 V P- P 20 mA Table 5: DC Characteristics for M675-01 Note 1: Internally pulled up to Logic 1 (normal operation) if left unselected. Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5. AC Characteristics for M675-01 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 155.52 MHz, Outputs terminated into 180Ω to ground Symbol Parameter Min Control Voltage VIN Modulation Bandwidth Output Output Center Frequency Range M675-01 FOUT VIN APR Absolute (Guaranteed) Pull-Range fSTAB Frequency Stability LIN Tuning Linearity KVCO VCO Gain Max 1 125 175 ±100 J(t) Jitter (rms) odc Output Duty Cycle 2 100Hz Offset 400 ppm/V VIN = 0.3 to 3.0V -77 dBc -52 55 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps rms ps rms % 1kHz Offset -80 -112 100kHz Offset -136 1MHz Offset -146 0.36 50kHz to 80MHz 0.50 45 2 VIN = 0.3 to 3.0V Best fit straight line % 10kHz Offset 12kHz to 20MHz MHz ppm p-p At any givin VIN 6 SSB (single sideband) Phase Noise, offset from carrier Notes ppm 100 -50 Unit kHz 500 Non-harmonic Spurious Φn Typ tR Output Rise Time for FOUT, nFOUT 275 425 ps 20% to 80% tF Output Fall Time 2 for FOUT, nFOUT 275 425 ps 20% to 80% Note 1: Also fully meets ±50 ppm minimum pull-range specification that is commonly required. Note 2: See Parameter Measurement Information on pg. 5. M675 Datasheet Rev 0.4 Integrated Circuit Systems, Inc. Table 6: AC Characteristics for M675-01 3 of 6 ● Networking & Communications Revised 16Nov2004 ● w w w. i c s t . c o m ● tel (508) 852-5400 M675 Integrated Circuit Systems, Inc. VOLTAGE CONTROLLED SAW OSCILLATOR Preliminary Information ELECTRICAL SPECIFICATIONS FOR M675-02 DC Characteristics for M675-02 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 622.08 MHz, Outputs terminated into 180Ω to ground Symbol Parameter Power Supply VCC Control Voltage Positive Supply Voltage VCC ICC Power Supply Current VIN Input Control Voltage Range Min Typ Max Unit 2.97 3.3 3.63 V 85 125 mA 3.3 V 0 VIN VIN Input Impedence Clock Enable VIH Pull-up1 VIL Differential Outputs Pin kΩ 100 Input High Voltage 2 Vcc + 0.3 V Input Low Voltage -0.3 0.8 V 5 µA IIH Input High Current IIL Input Low Current Rpullup Internal Pull-up Resistor VOH Output High Voltage VOL Output Low Voltage VP-P Peak to Peak Output Voltage2 IOUT Output Current CLK_EN µA -150 kΩ 51 Vcc - 0.98 FOUT, nFOUT Vcc - 0.75 V Vcc - 1.95 0.450 Vcc - 1.63 V 0.625 0.85 VP-P 20 mA Table 7: DC Characteristics for M675-02 Note 1: Internally pulled up to Logic 1 (normal operation) if left unselected. Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5. AC Characteristics for M675-02 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq. = 622.08 MHz, Outputs terminated into 180Ω to ground Symbol Parameter Min Control Voltage VIN Modulation Bandwidth Output Output Center Frequency Range M675-02 FOUT VIN APR Absolute (Guaranteed) Pull-Range fSTAB Frequency Stability LIN Tuning Linearity KVCO VCO Gain Max 1 500 700 ±100 Jitter (rms) odc Output Duty Cycle 2 MHz ppm p-p At any givin VIN VIN = 0.3 to 3.0V Best fit straight line % 6 J(t) Notes ppm 100 SSB (single sideband) Phase Noise, offset from carrier Unit kHz 500 400 ppm/V VIN = 0.3 to 3.0V -77 dBc 100Hz Offset -48 55 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps rms ps rms % Non-harmonic Spurious Φn Typ -50 1kHz Offset -75 10kHz Offset -99 100kHz Offset -124 1MHz Offset -142 12kHz to 20MHz 0.30 50kHz to 80MHz 0.18 45 2 tR Output Rise Time for FOUT, nFOUT 275 400 ps 20% to 80% tF Output Fall Time 2 for FOUT, nFOUT 275 400 ps 20% to 80% Note 1: Also fully meets ±50 ppm minimum pull-range specification that is commonly required. Note 2: See Parameter Measurement Information on pg. 5. M675 Datasheet Rev 0.4 Integrated Circuit Systems, Inc. Table 8: AC Characteristics for M675-02 4 of 6 ● Networking & Communications Revised 16Nov2004 ● w w w. i c s t . c o m ● tel (508) 852-5400 M675 Integrated Circuit Systems, Inc. VOLTAGE CONTROLLED SAW OSCILLATOR Preliminary Information PARAMETER MEASUREMENT INFORMATION Output Rise and Fall Time Output Duty Cycle nFOUT 80% 80% VP-P Clock Outputs 20% tF 20% tR FOUT tPW (Output Pulse Width) tPERIOD Figure 3: Output Rise and Fall Time odc = tPW tPERIOD Figure 4: Output Duty Cycle DEVICE PACKAGE - 5 x 7.5mm SMT (Surface Mount) Package Mechanical Dimensions: -02-AA Dimensions are in mm; dimensions in [ ] are in inches Unless otherwise specified, all dimensions are ±0.13 [0.005] Figure 5: Device Package - 5 x 7.5mm SMT (Surface Mount) Package M675 Datasheet Rev 0.4 Integrated Circuit Systems, Inc. 5 of 6 ● Networking & Communications Revised 16Nov2004 ● w w w. i c s t . c o m ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M675 Preliminary Information VOLTAGE CONTROLLED SAW OSCILLATOR ORDERING INFORMATION Part Numbering Scheme Part Number: M675-01 Standard Output Frequencies & Order Codes M675 M680-01 -0y - xx Device Number Variant -01 = Output Frequencies 125 - 175 MHz -02 = Output Frequencies 500 - 700 MHz Output Frequency Order Code See Tables 10 and 11 at right for frequency order codes. Consult ICS for other frequencies and order codes. Figure 6: Part Numbering Scheme Example Order Numbers For Output Order Part # Frequencies M675-01-Bx 153.6000 BO 167.2820 BF 155.5200 BA 167.3280 BG 156.2500 BB 167.3316 BH 156.8324 BC 167.7097 BI 161.1328 BD 168.0400 BJ 164.3555 BM 172.6423 BK 166.6286 BE 173.3708 BL Table 10: M675-01 Standard Output Frequencies & Order Codes For Output Order Part # Frequencies M675-02-Ax M675-02 Standard Output Frequencies & Order Codes 614.4000 AO 669.1281 AF 155.5200 M675-01-BA 622.0800 M675-02-AA 622.0800 AA 669.3120 AG 156.2500 M675-01-BB 625.0000 M675-02-AB 625.0000 AB 669.3266 AH 161.1328 M675-01-BD 644.5313 M675-02-AD 627.3296 AC 670.8386 AI 167.3316 M675-01-BH 669.3266 M675-02-AH 644.5313 AD 672.1600 AJ 657.4219 AM 690.5692 AK 666.5143 AE 693.4830 AL Table 9: Example Order Numbers Table 11: M675-02 Standard Output Frequencies & Order Codes Consult ICS for the availability of other 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 would result from its use. No other circuits, patents, or licenses are 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 or critical medical instruments. M675 Datasheet Rev 0.4 Integrated Circuit Systems, Inc. 6 of 6 ● Networking & Communications Revised 16Nov2004 ● w w w. i c s t . c o m ● tel (508) 852-5400