INTEGRATED CIRCUITS PCK111 Low voltage 1:10 differential PECL clock driver Product data File under Integrated Circuits — ICL03 2001 Sep 07 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 FEATURES PINNING • 100 ps part-to-part skew typical • 35 ps output-to-output skew typical • Differential design • VBB output • Low voltage VCC range of +2.375 V to +3.8 V for PECL • 75 kΩ input pull-down resistors • ECL/PECL outputs • Form, fit, and function compatible with MC100EP111 VCC VCCO Q0 Q0 Q1 Q1 Q2 Q2 VCCO 32 31 30 29 28 27 26 25 Pin configuration 1 24 Q3 CLK_SEL 2 23 Q3 CLK0 3 22 Q4 CLK0 4 21 Q4 PCK111 DESCRIPTION 18 Q6 VEE 8 17 Q6 VCCO 9 The PCK111 is specifically designed, modeled and produced with low skew as the key goal. Optimal design and layout serve to minimize gate-to-gate skew within a device, and empirical modeling is used to determine process control limits that ensure consistent tPD distributions from lot to lot. The net result is a dependable, guaranteed low skew device. VCCO 16 7 Q7 15 CLK1 Q7 14 19 Q5 Q8 13 20 Q5 6 Q8 12 5 Q9 11 VBB CLK1 Q9 10 The PCK111 is a low skew 1-to-10 differential driver, designed with clock distribution in mind. It accepts two clock sources into an input multiplexer. The PECL input signals can be either differential or single-ended if the VBB output is used. The selected signal is fanned out to 10 identical differential outputs. SW00907 Figure 1. Pin configuration To ensure that the tight skew specification is met, it is necessary that both sides of the differential output are terminated into 50 Ω, even if only one side is being used. In most applications, all ten differential pairs will be used, and therefore terminated. In the case where fewer than ten pairs are used, it is necessary to terminate at least the output pairs on the same package side as the pair(s) being used on that side, in order to maintain minimum skew. Failure to do this will result in small degradations of propagation delay (on the order of 10–20 ps) of the output(s) being used, which, while not being catastrophic to most designs, will mean a loss of skew margin. Pin description The PCK111 can be used for high performance clock distribution in +3.3 V or +2.5 V systems. Designers can take advantage of the PCK111’s performance to distribute low skew clocks across the backplane or the board. In a PECL environment, series or Thevenin line terminations are typically used as they require no additional power supplies. The PCK111 may be driven single-endedly utilizing the VBB bias output with the CLK0 input. If a single-ended signal is to be used, the VBB pin should be connected to the CLK0 input and bypassed to ground via a 0.01 µF capacitor. The VBB output can only source/sink 0.2 mA, therefore, it should be used as a switching reference for the PCK111 only. Part-to-part skew specifications are not guaranteed when driving the PCK111 single-endedly. SYMBOL PIN DESCRIPTION VCC 1 Supply voltage CLK_SEL 2 Active clock select input CLK0, CLK0 3, 4 Differential ECL/PECL input pair VBB 5 VBB output CLK1, CLK1 6, 7 Differential HSTL input pair VEE 8 Ground VCCO 9, 16, 25, 32 Output drive power supply voltage Q0–Q9 31, 29, 27, 24, 22, 20, 18, 15, 13, 11 Differential PECL outputs Q0–Q9 30, 28, 26, 23, 21, 19, 17, 14, 12, 10 Differential PECL outputs ORDERING INFORMATION n mber Type number PCK111BD 2001 Sep 07 Package Name Description Version Temperature p range LQFP32 plastic low profile quad flat package; 32 leads; body 7 × 7 × 1.4 mm SOT358-1 –40 to +70 °C 2 853-2281 27052 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 LOGIC SYMBOL FUNCTION TABLE CLK_SEL Active input Q0:9 0 CLK0, CLK0 Q0:9 1 CLK1, CLK1 CLK0 CLK0 0 10 CLK1 CLK1 1 VBB CLK_SEL SW00908 Figure 2. Logic symbol ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. PARAMETER SYMBOL VCC LIMITS Supply voltage ESDHBM Electrostatic discharge (Human Body Model; 1.5 kΩ, 100 pF) ESDMM Electrostatic discharge (Machine Model; 0 kΩ, 200 pF) UNIT –0.5 to +4.6 V >2 kV >200 V RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER MIN MAX UNIT V VCC Supply voltage 2.375 3.8 VIR Receiver input voltage VEE VCC V Operating ambient temperature range in free air –40 +85 °C Tamb 2001 Sep 07 3 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 DC ELECTRICAL CHARACTERISTICS VCC = 0 V, Vee = –2.25 to –3.80 V SYMBOL PARAMETER CONDITION –40 °C MIN –40 °C MAX 25 °C MIN 25 °C MAX 70 °C MIN 70 °C MAX UNIT IEE Internal supply current Absolute value of current 45 85 60 95 65 105 mA ICC Output and internal supply current All outputs terminated 50 Ω to VCC = –2.0 V 270 360 290 380 300 380 mA IIN Input current Includes pullup/pulldown resistors — 150 — 150 — 150 µA VBB Internal bias voltage VEE = –3.0 to –3.80 V –1.38 –1.26 –1.38 –1.26 –1.38 –1.26 V VBB Internal bias voltage VEE = –2.25 to –2.75 V –1.38 –1.16 –1.38 –1.16 –1.38 –1.16 V VIH Input HIGH voltage –1.165 –0.880 –1.165 –0.880 –1.165 –0.880 V VIL Input LOW voltage –1.810 –1.475 –1.810 –1.475 –1.810 –1.475 V VPP Input amplitude Difference of input = VIH – VIL (Note 1) 0.5 1.3 0.5 1.3 0.5 1.3 V Common mode voltage Cross point of input = average (VIH, VIL) VEE + 1.0 –0.3 VEE + 1.0 –0.3 VEE + 1.0 –0.3 V VOH Output HIGH voltage IOH = –30 mA –1.3 –0.95 — — –1.2 0.90 V VOL Output LOW voltage IOL = –5 mA –1.85 –1.4 — — –1.90 –1.5 V 350 — — — 500 — MV VCMR VOUTpp Differential output swing NOTE: 1. VPP minimum and maximum required to maintain AC specifications. Actual device function will tolerate minimum VPP of 100 mV. DC ELECTRICAL CHARACTERISTICS VCC = 0 V, Vee = –2.25 to –3.80 V SYMBOL PARAMETER CONDITION –40 °C MIN –40 °C MAX 25 °C MIN 25 °C MAX 70 °C MIN 70 °C MAX UNIT IEE Internal supply current Absolute value of current 45 85 60 95 65 105 mA ICC Output and internal supply current All outputs terminated 50 Ω to VCC = –2.0 V 270 360 290 380 300 380 mA IIN Input current Includes pullup/pulldown resistors — 150 — 150 — 150 µA VBB Internal bias voltage VEE = –3.0 to –3.80 V VCC –1.38 VCC –1.26 VCC –1.38 VCC –1.26 VCC –1.38 VCC –1.26 V VBB Internal bias voltage VEE = –2.25 to –2.75 V VCC –1.38 VCC –1.16 VCC –1.38 VCC –1.16 VCC –1.38 VCC –1.16 V VIH Input HIGH voltage VCC –1.165 VCC –0.880 VCC –1.16 VCC –0.880 VCC –1.16 VCC –0.880 V VIL Input LOW voltage VCC –1.810 VCC –1.475 VCC –1.810 VCC –1.475 VCC –1.810 VCC –1.475 V VPP Input amplitude Difference of input = VIH – VIL (Note 1) 0.5 1.3 0.5 1.3 0.5 1.3 V VCMR Common mode voltage Cross point of input = average (VIH, VIL) 1.0 VCC –0.3 1.0 VCC –0.3 1.0 VCC –0.3 V Vdif Differential input voltage Difference of input = VIH – VIL 0.4 1.9 0.4 1.9 0.4 1.9 V Vx Input crossover voltage Cross point of input = average (VIH, VIL) 0.68 0.9 0.68 0.9 0.68 0.9 V VOH Output HIGH voltage IOH = –30 mA VCC –1.30 VCC –0.95 — — VCC –1.20 VCC –0.90 V VOL Output LOW voltage IOL = –5 mA VCC –1.85 VCC –1.40 — — VCC –1.90 VCC –1.50 V 350 — — — 500 — MV VOUTpp Differential output swing NOTE: 1. VPP minimum and maximum required to maintain AC specifications. Actual device function will tolerate minimum VPP of 100 mV. 2001 Sep 07 4 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 AC ELECTRICAL CHARACTERISTICS VCC = 2.25 to 3.80 V, VEE = 0 V, or VCC = 0 V, VEE = –2.25 to –3.80 V SYMBOL PARAMETER CONDITION –40 °C MIN –40 °C MAX 25 °C MIN 25 °C MAX 70 °C MIN 70 °C MAX UNIT 350 500 380 530 450 600 ps Differential propagation delay Nominal (single input condition) VPP = 0.650 V, VCMR = VCC – 0.800 V (Note 1) tskew Part-to-part skew Note 1 — 150 — 150 — 150 ps tskew Output-to-output same part skew Note 1 — 70 — 65 — 60 ps Differential propagation delay Note 1 280 600 300 620 370 700 ps tskew Part-to-part skew Note 1 — 320 — 320 — 320 ps tskew Output-to-output same part skew Note 1 — 70 — 65 — 60 ps fMAX Maximum output frequency Functional to 1.5 GHz; Timing specifications apply to 1.0 GHZ — 1500 — 1500 — 1500 MHz tr/tf Output rise/fall time at 20% to 80% All outputs terminated 50 Ω to VCC – 2.0 V 100 300 100 300 100 300 ps –40 °C MIN –40 °C MAX 25 °C MIN 25 °C MAX 70 °C MIN 70 °C MAX UNIT 380 530 420 570 500 650 ps tPD tPD NOTE: 1. For operation with 2.5 V supply, the output termination is 50 Ω to VEE. For operation with 3.3 V supply, the output termination is 50 Ω to VCC – 2 V. AC ELECTRICAL CHARACTERISTICS VCC = 2.25 to 3.80 V, VEE = 0 V SYMBOL PARAMETER CONDITION Differential propagation delay Nominal (single input condition) VPP = 0.650 V, VCMR = VCC – 0.800 V (Note 1) tskew Part-to-part skew Note 1 — 150 — 150 — 150 ps tskew Output-to-output same part skew Note 1 — 70 — 65 — 60 ps Differential propagation delay Note 1 300 600 350 650 430 750 ps tskew Part-to-part skew Note 1 — 300 — 300 — 320 ps tskew Output-to-output same part skew Note 1 — 70 — 65 — 60 ps fMAX Maximum output frequency Functional to 1.5 GHz; Timing specifications apply to 1.0 GHZ — 250 — 250 — 250 MHz tr/tf Output rise/fall time at 20% to 80% All outputs terminated 50 Ω to VCC – 2.0 V 100 300 100 300 100 300 ps tPD tPD NOTE: 1. For operation with 2.5 V supply, the output termination is 50 Ω to VEE. For operation with 3.3 V supply, the output termination is 50 Ω to VCC-2 V. 2001 Sep 07 5 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 NOTES 2001 Sep 07 6 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 LQFP32: plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm 2001 Sep 07 7 SOT358-1 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 Data sheet status Data sheet status [1] Product status [2] Definitions Objective data Development This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. Preliminary data Qualification This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. Product data Production This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A. [1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Koninklijke Philips Electronics N.V. 2001 All rights reserved. Printed in U.S.A. Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 Date of release: 09-01 For sales offices addresses send e-mail to: [email protected]. Document order number: 2001 Sep 07 8 9397 750 09113