PCS5P23Z05B PULSECORE | Alldatasheet
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rev 0.2 Notice: The information in this document is subject to change without notice. PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018 www.pulsecoresemi.com Timing-Safe™ Peak EMI reduction IC General Features
- Clock distribution with Timing-Safe™ Peak EMI Reduction
- Input frequency range: 20MHz - 50MHz
- Zero input - output propagation delay
- Low-skew outputs
- Output-output skew less than 250pS
- Device-device skew less than 700pS
- Less than 200pS cycle-to-cycle jitter
- Available in 16pin, 150mil SOIC, 4.4mm TSSOP (PCS5P23Z09B), and in 8pin, 150 mil SOIC, 4.4mm TSSOP Packages (PCS5P23Z05B)
- 3.3V Operation
- Industrial temperature range
- Advanced CMOS technology
- The First True Drop-in Solution Functional Description PCS5P23Z05B/09B is a versatile, 3.3V zero-delay buffer designed to distribute high-speed Timing-Safe™ clocks with Peak EMI Reduction. PCS5P23Z09B accepts one reference input and drives out nine low-skew clocks. It is available in a 16pin Package. The PCS5P23Z05B is the eight-pin version and accepts one reference input and drives out five low-skew clocks. All parts have on-chip PLLs that lock to an input clock on the CLKIN pin. The PLL feedback is on-chip and is obtained from the CLKOUT pad, internal to the device. Multiple PCS5P23Z05B/09B devices can accept the same input clock and distribute it. In this case, the skew between the outputs of the two devices is guaranteed to be less than 700pS. All outputs have less than 200pS of cycle-to-cycle jitter. The input and output propagation delay is guaranteed to be less than ±350pS, and the output-to-output skew is guaranteed to be less than 250pS. Refer “Spread Spectrum Control and Input-Output Skew Table” for deviations and Input-Output Skew for PCS5P23Z05B and PCS5P23Z09B devices The PCS5P23Z05B and PCS5P23Z09B are available in two different packages, as shown in the ordering information table. Block Diagram PCS5P23Z09B PLL MUX CLKOUT CLKA1 CLKA2 CLKA3 CLKA4 CLKB1 CLKB2 CLKB3 CLKB4 Select Input Decoding CLKIN PLL CLKOUT CLK1 CLK2 CLK3 CLK4 PCS5P23Z05B CLKIN
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 2 of 14 Notice: The information in this document is subject to change without notice. CLKIN CLK2 4 5 CLK3 CLK4 CLKOUT GND VDD PCS5P23Z05B CLK1 Spread Spectrum Frequency Generation The clocks in digital systems are typically square waves with a 50% duty cycle and as frequencies increase the edge rates also get faster. Analysis shows that a square wave is composed of fundamental frequency and harmonics. The fundamental frequency and harmonics generate the energy peaks that become the source of EMI. Regulatory agencies test electronic equipment by measuring the amount of peak energy radiated from the equipment. In fact, the peak level allowed decreases as the frequency increases. The standard methods of reducing EMI are to use shielding, filtering, multi-layer PCBs etc. These methods are expensive. Spread spectrum clocking reduces the peak energy by reducing the Q factor of the clock. This is done by slowly modulating the clock frequency. The PCS5P23Z05B/09B uses the center modulation spread spectrum technique in which the modulated output frequency varies above and below the reference frequency with a specified modulation rate. With cent er modulation, the average frequency is the same as the unmodulated frequency and there is no performance degradation Timing-Safe™ technology Timing-Safe™ technology is the ability to modulate a clock source with Spread Spectrum technology and maintain synchronization with any associated data path. Pin Configuration ( 8 Pin Device ) Pin Configuration ( 16 Pin Device ) 4 13 8 9 CLKA3 CLKA4 CLKB3 CLKB4 VDD CLKOUT GND S1S2 CLKA2 VDD CLKB1 CLKB2 CLKA1 CLKIN PCS5P23Z09B GND
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 3 of 14 Notice: The information in this document is subject to change without notice. Pin Description for PCS5P23Z05B Pin # Pin Name Description
1 CLKIN Input reference frequency, 5V-tolerant input
2 CLK1 1 Buffered clock output
3 CLK2 1 Buffered clock output
4 GND Ground
5 CLK3 1 Buffered clock output
6 V DD 3.3V supply
7 CLK4 1 Buffered clock output
8 CLKOUT 1,2 Buffered clock output, internal feedback on this pin
Notes: 1. Weak pull-down on these outputs. 2. This output is driven and has an internal feedback for the PLL. 3. All Buffered clock outputs are Timing-Safe™. Pin Description for PCS5P23Z09B Pin # Pin Name Description
1 CLKIN Input reference frequency, 5V tolerant input
2 CLKA1 1 Buffered clock output
3 CLKA2 1 Buffered clock output
4 V DD 3.3V supply
5 GND Ground
6 CLKB1 1 Buffered clock output
7 CLKB2 1 Buffered clock output
8 S2 2 Select Input, bit 2
9 S1 2 Select Input, bit 1
10 CLKB3 1 Buffered clock output
11 CLKB4 1 Buffered clock output
12 GND Ground
13 V DD 3.3V supply
14 CLKA3 1 Buffered clock output
15 CLKA4 1 Buffered clock output
16 CLKOUT 1,3 Buffered output, Internal feedback on this pin
Notes: 1. Weak pull-down on all outputs. 2. Weak pull-up on these Inputs. 3. This output is driven and has an internal feedback for the PLL. 4. All Buffered clock outputs are Timing-Safe™.
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 4 of 14 Notice: The information in this document is subject to change without notice. Spread Spectrum Control and Input-Output Skew Table (Note: The values given in the table are for an input frequency of 32MHz) Device Deviation Input-Output Skew(±TSKEW) PCS5P23Z05B ±0.25 % 0.125 PCS5P23Z09B ±0.25 % 0.125 Note: TSKEW is measured in units of the Clock Period Absolute Maximum Ratings Symbol Parameter Rating Unit VDD Voltage on any pin with respect to Ground -0.5 to +4.6 V TSTG Storage temperature -65 to +125 °C Ts Max. Soldering Temperature (10 sec) 260 °C TJ Junction Temperature 150 °C TDV Static Discharge Voltage (As per JEDEC STD22- A114-B) 2 KV Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. Operating Conditions for PCS5P23Z05B and PCS5P23Z09B Devices Parameter Description Min Max Unit VDD Supply Voltage 3.0 3.6 V TA Operating Temperature (Ambie nt Temperature) -40 +85 °C CL Load Capacitance 30 pF CIN Input Capacitance 7 pF Parameter Description Test Conditions Min Typ Max Unit VIL Input LOW Voltage 1 0.8 V VIH Input HIGH Voltage 1 2.0 V IIL Input LOW Current V IN = 0V 50 µA IIH Input HIGH Current V IN = VDD 100 µA VOL Output LOW Voltage 2 I OL = 8mA 0.4 V VOH Output HIGH Voltage 2 I OH = -8mA 2.4 V IDD Supply Current Unloaded outputs 15 mA Zo Output Impedance 23 Ω Note: 1. CLKIN input has a threshold voltage of VDD/2 2. Parameter is guaranteed by design and characterization. Not 100% tested in production
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 5 of 14 Notice: The information in this document is subject to change without notice. Switching Characteristics for PCS5P23Z05B and PCS5P23Z09B Parameter Description Test Conditions Min Typ Max Unit 1/t1 Output Frequency 30pF load 20 50 MHz Duty Cycle 2 = (t2 / t1) * 100 Measured at V DD/2 40 50 60 % t3 Output Rise Time 1, 2 Measured between 0.8V and 2.0V 2.5 nS t4 Output Fall Time 1, 2 Measured between 2.0V and 0.8V 2.5 nS t5 Output-to-output skew 2 All outputs equally loaded 250 pS Delay, CLKIN Rising Edge to CLKOUT Rising Edge 2 Measured at VDD /2 ±350 pS t7 Device-to-Device Skew 2 Measured at VDD/2 on the CLKOUT pins of the device 700 pS tJ Cycle-to-cycle jitter 2 Loaded outputs 200 pS tLOCK PLL Lock Time 2 Stable power supply, valid clock presented on CLKIN pin 1.0 mS Note: 1. The parameters are specified with loaded outputs. 2. Parameter is guaranteed by design and characterization. Not 100% tested in production
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 6 of 14 Notice: The information in this document is subject to change without notice. Switching Waveforms Duty Cycle Timing All Outputs Rise/Fall Time Output - Output Skew Input - Output Propagation Delay Device - Device Skew t t 2 1.4 V 1.4 V 1.4 V OUTPUT 2.0V 0.8V t3 t4 3.3 V 0 V 2.0 V 0.8 V 1.4 V 1.4 V t 5 OUTPUT OUTPUT VDD /2 t 6 INPUT OUTPUT V DD /2 VDD /2 t 7 VDD /2 CLKOUT, Device 1 CLKOUT, Device 2
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 7 of 14 Notice: The information in this document is subject to change without notice. Input-Output Skew Test Circuit A Typical example of Timing-Safe™ waveform VDD VDD GND GND CLKOUT LOAD OUTPUTS TEST CIRCUIT 0.1uF 0.1uF +3.3V +3.3V TSKEW - One clock cycle N=1 TSKEW+ Input Timing-Safe™ Output TSKEW represents input-output skew when spread spectrum is ON For example, TSKEW = ± 0.125 for an Input clock 32MHz, translates in to Input Input CLKOUT with SSOFF Timing-Safe™ CLKOUT
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 8 of 14 Notice: The information in this document is subject to change without notice.
Package Information
8-lead (150-mil) SOIC Package D E H D A2 A θ L C B e Dimensions Inches Millimeters Symbol Min Max Min Max A1 0.004 0.010 0.10 0.25 A 0.053 0.069 1.35 1.75 A2 0.049 0.059 1.25 1.50 B 0.012 0.020 0.31 0.51 C 0.007 0.010 0.18 0.25 D 0.193 BSC 4.90 BSC E 0.154 BSC 3.91 BSC e 0.050 BSC 1.27 BSC H 0.236 BSC 6.00 BSC L 0.016 0.050 0.41 1.27 θ 0° 8° 0° 8°
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 9 of 14 Notice: The information in this document is subject to change without notice. E H A D B C L θ e 8-lead TSSOP (4.40-MM Body) Dimensions Inches Millimeters Symbol Min Max Min Max A 0.043 1.10 A1 0.002 0.006 0.05 0.15 A2 0.033 0.037 0.85 0.95 B 0.008 0.012 0.19 0.30 c 0.004 0.008 0.09 0.20 D 0.114 0.122 2.90 3.10 E 0.169 0.177 4.30 4.50 e 0.026 BSC 0.65 BSC H 0.252 BSC 6.40 BSC L 0.020 0.028 0.50 0.70 θ 0° 8° 0° 8°
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 10 of 14 Notice: The information in this document is subject to change without notice. 16-lead (150 Mil) Molded SOIC Package E H A D e B θ L C h Seating Plane D0.004 PI N 1 ID18 91 6 Dimensions Inches Millimeters Symbol Min Max Min Max A 0.053 0.069 1.35 1.75 A1 0.004 0.010 0.10 0.25 A2 0.049 0.059 1.25 1.50 B 0.013 0.022 0.33 0.53 C 0.008 0.012 0.19 0.27 D 0.386 0.394 9.80 10.01 E 0.150 0.157 3.80 4.00 e 0.050 BSC 1.27 BSC H 0.228 0.244 5.80 6.20 h 0.010 0.016 0.25 0.41 L 0.016 0.035 0.40 0.89 θ 0° 8° 0° 8°
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 11 of 14 Notice: The information in this document is subject to change without notice. 16-lead TSSOP (4.40-MM Body) D E H D A Be θ L CA2 PIN 1 ID 9 16 Seating Plane Dimensions Inches Millimeters Symbol Min Max Min Max A 0.043 1.20 A1 0.002 0.006 0.05 0.15 A2 0.031 0.041 0.80 1.05 B 0.007 0.012 0.19 0.30 C 0.004 0.008 0.09 0.20 D 0.193 0.201 4.90 5.10 E 0.169 0.177 4.30 4.50 e 0.026 BSC 0.65 BSC H 0.252 BSC 6.40 BSC L 0.020 0.030 0.50 0.75 θ 0° 8° 0° 8°
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 12 of 14 Notice: The information in this document is subject to change without notice. Ordering Codes Ordering Code Marking Package Type Temperature PCS5P23Z09BF-16-ST 5P23Z09BF 16-pin 150-mil SOIC-TUBE, Pb Free Commercial PCS5I23Z09BF-16-ST 5I23Z09BF 16-pin 150-mil SOIC-TUBE, Pb Free Industrial PCS5P23Z09BF-16-SR 5P23Z09BF 16-pin 150-mil SOIC-TAPE & REEL, Pb Free Commercial PCS5I23Z09BF-16-SR 5I23Z09BF 16-pin 150 -mil SOIC-TAPE & REEL, Pb Free Industrial PCS5P23Z09BF-16-TT 5P23Z09BF 16-pin 4.4-mm TSSOP - TUBE, Pb Free Commercial PCS5I23Z09BF-16-TT 5I23Z09BF 16-pin 4.4-mm TSSOP - TUBE, Pb Free Industrial PCS5P23Z09BF-16-TR 5P23Z09BF 16-pin 4.4-mm TSSOP - TAPE & REEL, Pb Free Commercial PCS5I23Z09BF-16-TR 5I23Z09BF 16-pin 4.4-mm TSSOP - TAPE & REEL, Pb Free Industrial PCS5P23Z05BF-08-ST 5P23Z05BF 8-pin 150-mil SOIC-TUBE, Pb Free Commercial PCS5I23Z05BF-08-ST 5I23Z05BF 8-pin 150-mil SOIC-TUBE, Pb Free Industrial PCS5P23Z05BF-08-SR 5P23Z05BF 8-pin 150-mil SOIC-TAPE & REEL, Pb Free Commercial PCS5I23Z05BF-08-SR 5I23Z05BF 8-pin 150 -mil SOIC-TAPE & REEL, Pb Free Industrial PCS5P23Z05BF-08-TT 5P23Z05BF 8-pin 4.4-mm TSSOP - TUBE, Pb Free Commercial PCS5I23Z05BF-08-TT 5I23Z05BF 8-pin 4.4-mm TSSOP - TUBE, Pb Free Industrial PCS5P23Z05BF-08-TR 5P23Z05BF 8-pin 4.4-mm TSSOP - TAPE & REEL, Pb Free Commercial PCS5I23Z05BF-08-TR 5I23Z05BF 8-pin 4.4-mm TSSOP - TAPE & REEL, Pb Free Industrial PCS5P23Z09BG-16-ST 5P23Z09BG 16-pin 150-mil SOIC-TUBE, Green Commercial PCS5I23Z09BG-16-ST 5I23Z09BG 16-pin 150-mil SOIC-TUBE, Green Industrial PCS5P23Z09BG-16-SR 5P23Z09BG 16-pin 150-mil SOIC-TAPE & REEL, Green Commercial PCS5I23Z09BG-16-SR 5I23Z09BG 16-pin 150-mil SOIC-TAPE & REEL, Green Industrial PCS5P23Z09BG-16-TT 5P23Z09BG 16-pin 4.4-mm TSSOP - TUBE, Green Commercial PCS5I23Z09BG-16-TT 5I23Z09BG 16-pin 4.4-mm TSSOP - TUBE, Green Industrial PCS5P23Z09BG-16-TR 5P23Z09BG 16-pin 4. 4-mm TSSOP - TAPE & REEL, Green Commercial PCS5I23Z09BG-16-TR 5I23Z09BG 16-pin 4. 4-mm TSSOP - TAPE & REEL, Green Industrial PCS5P23Z05BG-08-ST 5P23Z05BG 8-pin 150-mil SOIC-TUBE, Green Commercial PCS5I23Z05BG-08-ST 5I23Z05BG 8-pin 150-mil SOIC-TUBE, Green Industrial PCS5P23Z05BG-08-SR 5P23Z05BG 8-pin 150-mil SOIC-TAPE & REEL, Green Commercial PCS5I23Z05BG-08-SR 5I23Z05BG 8-pin 150-mil SOIC-TAPE & REEL, Green Industrial PCS5P23Z05BG-08-TT 5P23Z05BG 8-pin 4.4-mm TSSOP - TUBE, Green Commercial PCS5I23Z05BG-08-TT I23Z05BG 8-pin 4.4-mm TSSOP - TUBE, Green Industrial PCS5P23Z05BG-08-TR 5P23Z05BG 8-pin 4.4-mm TSSOP - TAPE & REEL, Green Commercial PCS5I23Z05BG-08-TR 5I23Z05BG 8-pin 4. 4-mm TSSOP - TAPE & REEL, Green Industrial
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 13 of 14 Notice: The information in this document is subject to change without notice. Device Ordering Information PCS5P23Z05 BF-08-TR Licensed under US patent #5,488,627, #6,646,463 and #5,631,920. O = SOT U = MSOP S = SOIC E = TQFP T = TSSOP L = LQFP A = SSOP U = MSOP V = TVSOP P = PDIP B = BGA D = QSOP Q = QFN X = SC-70 DEVICE PIN COUNT X= Automotive I= Industrial P or n/c = Commercial (-40C to +125C) (-40C to +85C) (0C to +70C) 1 = Reserved 6 = Power Management 2 = Non PLL based 7 = Power Management 3 = EMI Reduction 8 = Power Management 4 = DDR support products 9 = Hi Performance 5 = STD Zero Delay Buffer 0 = Reserved PulseCore Semiconductor Mixed Signal Product PART NUMBER F = LEAD FREE AND RoHS COMPLIANT PART G = GREEN PACKAGE, LEAD FREE, and RoHS Tape & Reel, T = Tube or Tray
rev 0.2 Timing-Safe™ Peak EMI Reduction IC 14 of 14 Notice: The information in this document is subject to change without notice. © Copyright 2006 PulseCore Semiconductor Corporation. A ll rights reserved. Our logo and name are trademarks or registered trademarks of PulseCore Semi conductor. All other brand and produc t names may be the trademarks of their respective companies. PulseCore reserves the right to make changes to this document and its products at any time without notice. PulseCore assumes no responsibility for any errors t hat may appear in this document. The data contained herein represents PulseCore’s best data and/or estimates at the time of issuance. PulseCore reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possibl e. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. PulseCore does not assume any responsibi lity or liability arising out of the application or use of any product described herein, and disclaims any express or implie d warranties related to the sale and/or use of PulseCore products including liability or warranties related to fitness fo r a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in PulseCore’s Terms and Conditions of Sale (which are available from PulseCore). All sales of PulseCore products are made exclusively according to PulseCore’s Terms and Conditions of Sale. The purchase of products from PulseCore does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of PulseCore or third pa rties. PulseCore does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the in clusion of PulseCore products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnif y PulseCore against all claims arising from such use. PulseCore Semiconductor Corporation 1715 S. Bascom Ave Suite 200 Campbell, CA 95008 Tel: 408-879-9077 Fax: 408-879-9018 www.pulsecoresemi.com Copyright PulseCore Semiconductor All Rights Reserved Preliminary Information Part Number: PCS5P23Z05B/09B Document Version: 0.2 Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003 Timing-Safe™ US Patent Pending.