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SCG2000 Series Synchronous Clock Generators PLL 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com Application The Connor-Winfield SCG2000 Series provides high precision phase lock loop frequency translation for the telecommunication applications. SCG2000 Series is well suited for use in line cards, service termination cards and similar functions to provide reliable reference, phase locked, synchronization and low phase gain for TDM, PDH, SONET and SDH network equipment. The SCG2000 Series provides a jitter filtered, wander following output signal synchronized to a superior Stratum or peer input reference signal. Data Sheet #: SG029 Page 1 of 20 Features * 3.3V High Precision PLL * Tri-State Capability * Active Alarms * Guaranteed Free Run 20ppm * 1 Sec. Acquisition Time Bulletin Page Revision Date Issued By SG029 1 of 20 A04 29 JAN 02 MBATTS Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice General Description The SCG2000 Series provides high precision phase lock loop frequency translation for the telecommunication applications. The SCG2000 products generate a CMOS output from an intrinsically low jitter, voltage controlled crystal oscillator. Most models provide a jitter attenuated, internal reference that is connected to a Reference Output pin. SCG2000 Series is well suited for use in line cards, service termination cards and similar functions to provide reliable reference, phase locked, synchronization for TDM, PDH, SONET and SDH network equipment . The SCG2000 Series provides a low phase gain (<0.2dB), jitter filtered, wander following output signal synchronized to a superior Stratum or peer input reference signal. The SCG2000 Series include the following features: Free Run, Tri-state and alarm outputs for Loss-of-Reference, (LOR), Loss-of-Lock, (LOL). During the LOR alarm, the SCG2000 will also enter a Free Run state which will guarantee a 20 ppm accurate output. Additionally the Free Run mode may be entered manually by asserting a high signal to the Free Run Enable pin. The outputs may be put into the tri-state high impedance condition for external testing purposes by asserting a high signal to the Tri-State Enable pin. The SCG2000 Series are 3.3 Volt components that typically draw less than 100 mA. All models have an acquisition time of approximately 1.0 second and can be used in applications that require temperature rating of 0 70 C. All models have a 33W resistor in series with the oscillator output. The SCG2000 package dimensions are .775" x .825" x .35" on a six layer FR4 board with surface mount pins. Parts are assembled using high temperature solder to withstand surface mount reflow process. Functional Block Diagram Figure 1 Tri-State Enable (Pin 10) LOL Alarm Output (Pin 7) ALARM DETECTION Free Run Enable (Pin 5) LOR Alarm Output (Pin 6) Reference Input (Pin 8) DIVIDER DPFD ANALOG FILTER FREE RUN CONTROL VCXO Oscillator Output (Pin 9) Optional Oscillator Output (Pin 1) DIVIDER Input Freq. Select A (Pin 14) Reference Output (Pin 1) (Not available on models with optional oscillator output) Input Freq. Select B (Pin 13) Model Comparison Table Table 1 Model SCG2000 SCG2010 SCG2020 SCG2030 SCG2050 SCG2070 Input Ref Freq 8-64 kHz 19.44 MHz 19.44 MHz 8-64 kHz 8-64 kHz 19.44 MHz Max Duty Cycle 40/60 40/60 40/60 45/55 40/60 40/60 Reference Output (Pin #1) = Input Ref Freq. 8 kHz 19.44 MHz = Input Ref Freq. 19.44 MHz 51.84 MHz, 77.76 MHz Oscillator Output (Pin #9) 1.544 MHz to 125.0 MHz 19.44 MHz 77.76 MHz 1.544 MHz to 125.0 MHz 77.76 MHz 51.84 MHz, 77.76 MHz Ref Output = Osc Output Tight Duty Cycle Notes Basic Model *Features which differentiate a model from the base model (SCG2000) are highlighted in boldface color and in the notes column. Data Sheet #: SG029 Page 2 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Pin Description Table 2 Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Connection Reference Output TCK TMS Ground Free Run Enable/TDI GND Loss of Reference (LOR) Loss of Lock (LOL) Reference Input Oscillator Output Tri-State enable Vcc TDO Input Freq. Select B Input Freq. Select A All SCG2000 Models Description Output frequency is dependent on SCG model JTAG pin that is used only by Connor-Winfield for programming. Do not connect JTAG pin that is used only by Connor-Winfield for programming. Do not connect Ground Free Run enable pin. 1 = Free Run at nominal frequency 20ppm. Input is pulled to Alarm indicator. 1 = The reference has been lost. Alarm indicator. 1 = Phase lock has been lost Input reference frequency Output frequency is dependent on SCG model Tri State control for all outputs. 1 = Hi-Z, 0 = normal. Input is pulled to GND. 3.3V Supply Voltage. JTAG pin that is used only by Connor-Winfield for programming. Do not connect Control pin B used to select input frequency. Input is pulled to GND. Control pin A used to select input frequency. Input is pulled to GND. Typical Application Figure 2 BITS System Signal Input Select Line Card 1 A A B M UX Y CW STM/MSTM m 's odule B S M UX Y CW SCG 's 2000/4000 Clock out S RCV Tim Card #N ing A A B M UX Y CW STM/M 's STM m odule M UX B Line Card N S CW SCG 's 2000/4000 Clock out Y S RCV System Select Data Sheet #: SG029 Page 3 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Absolute Maximum Rating Table 3 Symbol Vcc V1 Ts Parameter Power Supply Voltage Input Voltage Storage Temperature -0.5 -0.5 -65 All SCG2000 Models Minimum Nominal Maximum 4 5.5 150 Units Volts Volts deg. C Notes Specifications Table 4 Parameter Voltage Current Temperature Range Input Jitter Tolerance Jitter Bandwidth Acquisition Time Capture/Pull-in Range Output Duty Cycle Output Rise and Fall Time Output Load Alarms Free Run Accuracy Package TDEV MTIE All SCG2000 Models Specifications 3.3V 5% 100 mA 0 to 70C 6.25 us, 10 Hz (.05 UI @ 8000 Hz) <10 Hz Approx 1.0 second 25 ppm Minimum 40/60 % Min/Max @ 50% Level 3 ns @ 20% to 80% output level 30 pF LOR, LOL Status on seperate outputs 20 ppm Fr4 SM 0.775" x .825" x 0.350" <0.4 ns Typical 2 ns Typical 2.0 Notes 1.0 Input And Output Characteristics Table 5 Symbol VIH VIL TIO CO VHO VIO TIR Parameter High Level Input Voltage Low Level Input Voltage I/O to Output Valid Output Capacitance High Level Output Voltage loH = -4mA Low Level Output Voltage loL = 8mA Input Reference Signal Pulse Width 30 2.4 0.4 nS All SCG2000 Models Minimum 2 0 Nominal Maximum 5.5 0.8 10 10 Units V V nS pF Vcc Min. Vcc Max. Notes NOTES: 1.0: Requires external regulation 2.0: From a 20 ppm offset in reference frequency Data Sheet #: SG029 Page 4 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Output Jitter Specifications Table 6 Frequency (MHz) 1.544 2.048 16.384 19.44 20.48 37.056 44.736 49.152 51.84 77.76 125.0 pS (RMS) TBD 60 35 50 TBD 30 30 30 TBD 30 30 All SCG2000 Models Jitter BW 10 Hz - 1 MHz m UI TBD 0.122 0.573 0.972 TBD 1.11 1.34 1.47 TBD 2.33 3.75 TBD 4 2.25 2.4 TBD 1.25 1.15 1.25 TBD 2.25 1.5 Sonnet Jitter BW 12 KHz - 20 MHz pS (RMS) m UI TBD 0.008 0.037 0.047 TBD 0.046 0.051 0.061 TBD 0.175 0.186 Output Programming Table 7 Tristate 0 1 0 0 X 1 Alarm Status Table 8 0 1 X 0 0 1 All SCG2000 Models Free Run Output Locked to reference selected (default) Hi-Z Tristate condition Free run at nominal frequency All SCG2000 Models Alarm Output No alarm Loss-of-Lock Loss-of-Reference LOL Output LOR Output Package Dimensions Figure 3 Recommended Footprint Dimensions Figure 4 0.800 0.640 (20.32mm) (16.26mm) 0.050 TYP (1.27mm) 0.080 (2.03mm) 0.100 TYP (2.54mm) Pin 1 AQvA8yhhvAvA# *Pin Coplanarity is 0.004" 0.050 TYP (1.27mm) 0.650 (16.51mm) Data Sheet #: SG029 Page 5 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Tape and Reel Dimensions Figure 5 Data Sheet #: SG029 Page 6 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2000 Typical TDEV Figure 6 SCG2000 Typical MTIE Figure 7 Data Sheet #: SG029 Page 7 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2000 Switch from Free Run to a new Reference Figure 8 SCG2000 Switch from a Reference to Free Run Figure 9 Data Sheet #: SG029 Page 8 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2000 Step Response due to a Freq. Step Figure 10 SCG2000 1s Phase Transient Figure 11 Data Sheet #: SG029 Page 9 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2000 Jitter Attenuation Figure 12 Jitter Attenuation vs. Input Frequency 0.0 -5.0 -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 -40.0 -45.0 1 10 100 INPUT Jitter frequency (Hz) 1000 Jitter attenuation (dB) Figure 13 Typical System Test Setup This device supplies system time information. It can be thought of as supplying "absolute time" reference information GPS or LORAN Timing Source Possible Choice : Stanford Research Model: FS700 10 MHz M T IE ( s S a m p l e M T IE D ata fo r S T M -S 3 /M S T M -S 3 1. 0E -6 T yp ic al r es po n s e - 3 00 0 s ec on d te s t - J i tte r app lie d (2 U I @ 10 H z ) r e f d ate A P R 22 19 98 k dh 1 00. 0E -9 10. 0E -9 M TIE 1 2 4 4 - 5 .2 M a s k ( A ) 1 2 4 4 - 5 .2 M a s k ( B ) 1 2 4 4 - 5 .6 M a s k G R 2 5 3 - 5 .4 .4 .3.2 1. 0E -9 1 0 0 .0 E - 3 1 . 0 E +0 1 0 .0 E +0 1 0 0 .0 E +0 1 . 0 E +3 1 0 . 0 E +3 Ob s e rv at io n Ti m e ( s ) C o p yr ig h t 1 99 8 Co n no r -W inf iel d all r i gh ts r e s er ve d Target System Under Test External Reference Input Arbitrary Waveform Generator DS1 rate RZ (1.544 MHz), E1 rate RZ or 8 kHz clock RZ with noise modulation Clock or BITS logic level clock input (TTL, CMOS, etc.) Standards Compliance Documents OC-12 Line Card OC-48 Line Card OC-3 Line Card DS-1 Line Card Timing Card Timing Card Line Card MTIE, TDEV, Wander Transfer, and Wander Generation Plots S am p l e W an d e r G e n e r ati o n ( T D E V ) f or S T M / M S T M -S 3 1 .0 E - 6 Noise Modulation Input 10 MHz T ypi cal r e s p on s e - 3 00 0 s ec o nd te s t - J i tter ap plie d (2 U I @ 10 H z ) r ef da te A P R 2 2 199 8 kdh . . . . ... 1 0 0 .0 E - 9 1 0 .0 E - 9 T D E V (s e c TD EV 1 .0 E - 9 External Reference Input Arbitrary Waveform Generator [Noise Source] GR 1 2 4 4 -Fi g 5 .1 GR 1 2 4 4 -Fi g 5 -3 1 0 0 . 0 E -1 2 1 0 .0 E - 3 1 0 0 .0 E - 3 1 . 0 E +0 1 0 .0 E +0 1 0 0 .0 E +0 1 . 0 E +3 I n te g r a ti o n Ti m e (s e c ) C o p yr ig ht 199 8 C o nn o r -Wi nfi eld a lll r ig hts r es e rv ed DS1 rate [1.544 MHz] BITS Bipolar DS-1, OC-3, OC-12 electrical or optical signals 10 MHz Tektronix SJ300E 10 MHz Time-stamped ensemble based on absolute time reference (10MHz input) Phase Error data output External Reference Input HP53310A Modulation Analyzer / Time Interval Analyzer Wander Analyzer data (IEEE-488) External Reference Input TEKTRONIX SJ300E IEEE-488 Controller Platform for software HP 53305A Phase Analyzer HP E1748A Sync Measurement Tektronix Wander Analyzer Data Sheet #: SG029 Page 10 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Alarm Timing Diagram Figure 14 LOR (loss-of-reference) EXT REF (Divided down to 8 kHz) INT 8K REF 125 s - 250 s 125 s LOR LOL 31.25 s - 156.25 s LOL (loss-of-lock) EXT REF (Divided down to 8 kHz) INT 8K REF LOL (If t >X) X = 31.25 s for models 2000, 2030, 2050 X = 1 s for models 2010, 2020, 2070 = Pulsing alarm output for models 2010, 2020, 2070 Solder Profile Figure 15 250 200 Temp (Deg C) 150 100 50 0 1 2 3 4 5 } t -X or t X Point at which -X < t < X and is held within that range 6 7 8 Time (minutes) Recommended Reflow Profile Peak Temp: 217 Deg C Max Rise Slope: 1.5 Deg C/Sec Time Above 150 C: 100 Sec Data Sheet #: SG029 Page 11 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2000 SCG2000 Individual Features: * Four selectable References: 8, 16, 32, and 64 kHz. * Oscillator Output Available: 1.544 MHz to 77.76 MHz. The SCG2000 is Connor-Winfield's base model for the SCG2000 Series product line. The SCG2000 can lock to one of four input reference frequencies from 8 to 64 kHz which is selectable using two input control pins. Input Reference Selection Table 9 Input Sel A (Pin #14) 0 1 0 1 Input Sel B (Pin #13) 0 0 1 1 SCG2000 Reference Frequency (Pin #8) 8 kHz (default) 16 kHz 32 kHz (see note 4.0) 64 kHz (see note 4.0) Reference and Output Availability Table 10 Input Reference (Pin #8) 8 kHz 16 kHz 8 kHz 16 kHz 32 kHz 64 kHz 8 kHz SCG2000 Oscillator Output (Pin #9) 19.44 MHz 1.544, 2.048, 16.384 20.48, 37.056, 44.736, 49.152, 51.84 and 77.76 MHz 125.0 MHz Reference Output (Pin #1) 8 kHz 16 kHz 8 kHz 16 kHz 32 kHz 64 kHz 8 kHz Notes: Note 4.0: Not available with 19.44 MHz output. Data Sheet #: SG029 Page 12 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2010 SCG2010 Individual Features: * Input References (Pin #8) at 19.44 MHz. * Oscillator Output (Pin #9) at 19.44 MHz. * Reference Output (Pin #1) at 8 kHz. The SCG2010 is designed as a clean-up PLL with the input reference frequency (Pin #8) equal to the oscillator output (Pin #9). The reference output frequency (Pin #1) is 8 kHz. The LOL alarm is designed to tolerate 1us pp of jitter on the reference. Jitter greater than 1us p-p will result in LOL alarm pulses. SCG2010 Input Sel B (Pin #13) X Reference Frequency (Pin #8) 19.44 MHz (Default) Input Reference Selection Table 11 Input Sel A (Pin #14) X X= Don't Care Reference and Output Availability Table 12 Input Reference (Pin #8) 19.44 MHz SCG2010 Oscillator Output (Pin #9) 19.44 MHz Reference Output (Pin #1) 8 kHz LOL Alarm Note Units that use 19.44 MHz reference has a pulsing LOL Alarm output during an alarm condition. The pulsing output is at an 8 kHz rate and the pulse width can be between 1ms and 124 ms wide. LOR Alarm Note Units that use 19.44 MHz reference will have a pulse that appears on the LOR alarm output when the reference is 9.1 MHz. Data Sheet #: SG029 Page 13 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2020 SCG2020 Individual Features: * Input References (Pin #8) at 19.44 MHz. * Oscillator Output (Pin #9) at 77.76 MHz. * Reference Output (Pin #1) at 19.44 MHz. The SCG2020 accepts a 19.44 MHz Input Reference (Pin #8) and provides a 19.44 MHz Output Reference (Pin #1) and a 77.76 MHz signal output on Output #2. The LOL alarm is designed to tolerate 1ms p-p of jitter on the reference. Jitter greater than 1ms p-p will result in LOL alarm pulses. Input Reference Selection Table 13 Input Sel A (Pin #14) X Input Sel B (Pin #13) X SCG2020 Reference Frequency (Pin #8) 19.44 MHz (Default) X= Don't Care Reference and Output Availability Table 14 Input Reference (Pin #8) 19.44 MHz SCG2020 Oscillator Output (Pin #9) 77.76 MHz Reference Output (Pin #1) 19.44 MHz LOL Alarm Note Units that use 19.44 MHz reference has a pulsing LOL Alarm output during an alarm condition. The pulsing output is at an 8 kHz rate and the pulse width can be between 1ms and 124ms wide. LOR Alarm Note Units that use 19.44 MHz reference will have a pulse that appears on the LOR alarm output when the reference is 9.1 MHz. Data Sheet #: SG029 Page 14 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2030 SCG2030 Individual Features: * Four selectable References: 8, 16, 32, and 64 kHz. * Oscillator Output Available: 1.544 MHz to 77.76 MHz. * Tight Duty cycle The SCG2030 is similar to the SCG2000 but with a tighter duty cycle of 45/55. Input Reference Selection Table 15 Input Sel A (Pin #14) 0 1 0 1 Input Sel B (Pin #13) 0 0 1 1 SCG2030 Reference Frequency (Pin #8) 8 kHz (default) 16 kHz 32 kHz (see note 4.0) 64 kHz (see note 4.0) Reference and Output Availability Table 16 Input Reference (Pin #8) 8 kHz 16 kHz 8 kHz 16 kHz 32 kHz 64 kHz 8 kHz SCG2030 Oscillator Output (Pin #9) 19.44 MHz 1.544, 2.048, 16.384, 20.48, 37.056, 44.736, 49.152, 51.84 and 77.76 MHz 125.0 MHz Reference Output (Pin #1) 8 kHz 16 kHz 8 kHz 16 kHz 32 kHz 64 kHz 8 kHz Notes: Note 4.0: Not available with 19.44 MHz output. Data Sheet #: SG029 Page 15 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2050 SCG2050 Individual Features: * Four selectable References: 8, 16, 32, and 64 kHz. * Oscillator Output Available: 77.76 MHz only The SCG2050 can use any 1 of 4 selectable Input References frequencies with an Oscillator output of 77.76 MHz and a Reference output of 19.44 MHz Input Reference Selection Table 19 Input Sel A (Pin #14) 0 1 0 1 Input Sel B (Pin #13) 0 0 1 1 SCG2050 Reference Frequency (Pin #8) 8 kHz (default) 16 kHz 32 kHz 64 kHz Reference and Output Availability Table 20 Input Reference (Pin #8) 8 kHz 16 kHz 32 kHz 64 kHz SCG2050 Oscillator Output (Pin #9) 77.76 MHz 77.76 MHz 77.76 MHz 77.76 MHz Reference Output (Pin #1) 19.44 MHz 19.44 MHz 19.44 MHz 19.44 MHz Data Sheet #: SG029 Page 16 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice SCG2070 SCG2070 Individual Features: * Input References (Pin #8) at 19.44 MHz. * Oscillator Output (Pin #9) equals Reference Output (Pin #1) The SCG2070 is designed to provide two output frequencies that are equal. The Reference Output is actually a second Oscillator Output. SCG2070 is available with either 77.76 MHz outputs or with 51.84 MHz outputs. The LOL alarm is designed to tolerate 1ms p-p of jitter on the reference. Jitter greater than 1ms p-p will result in LOL alarm pulses. Input Reference Selection Table 21 Input Sel A (Pin #14) X Input Sel B (Pin #13) X SCG2070 Reference Frequency (Pin #8) 19.44 MHz (Default) X= Don't Care Reference and Output Availability Table 22 Input Reference (Pin #8) 19.44 MHz 19.44 MHz SCG2070 Oscillator Output (Pin #9) 77.76 MHz 51.84 MHz Reference Output (Pin #1) 77.76 MHz 51.84 MHz LOL Alarm Note Units that use 19.44 MHz reference has a pulsing LOL Alarm output during an alarm condition. The pulsing output is at an 8 kHz rate and the pulse width can be between 1ms and 124 ms wide. LOR Alarm Note Units that use 19.44 MHz reference will have a pulse that appears on the LOR alarm output when the reference is 9.1 MHz. Data Sheet #: SG029 Page 17 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Ordering Information SCG{XXXX}-{FFF.FFF}{M} XXXX equals a specific model (2000, 2010, 2020, 2030, 2050, 2070) FFF.FFF equals the Oscillator Output frequency (001.544, 002.048, 017.408, 019.44, 077.76, 125.0) M equals MHZ and is added to all part numbers Example: To order an SCG2000 with an Oscillator Output of 77.76 MHz, Order part number SCG2000-077.76M Data Sheet #: SG029 Page 18 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Revision A00 A01 A02 A03 A04 Revision DateNote 4/27/01 5/22/01 7/10/01 7/30/01 1/29/02 Advance Informational Release Added new frequencies Changed LOL alarm information Filled in some jitter specs Added ordering information Data Sheet #: SG029 Page 19 of 20 Rev: A04 Date: 01 / 29 / 02 (c) Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com |
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