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| INTEGRATED CIRCUITS PCK111 Low voltage 1:10 differential PECL clock driver Product data File under Integrated Circuits -- ICL03 2001 Sep 07 Philips Semiconductors Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 FEATURES * 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 k input pull-down resistors * ECL/PECL outputs * Form, fit, and function compatible with MC100EP111 DESCRIPTION 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. 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. To ensure that the tight skew specification is met, it is necessary that both sides of the differential output are terminated into 50 , 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. 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 F 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. PINNING Pin configuration VCCO VCCO 25 Q0 Q0 Q1 Q1 Q2 27 32 31 30 29 28 VCC CLK_SEL CLK0 CLK0 VBB CLK1 CLK1 VEE 1 2 3 4 26 Q2 24 Q3 23 Q3 22 Q4 21 Q4 PCK111 5 6 7 8 20 Q5 19 Q5 18 Q6 17 Q6 Q9 10 Q8 12 Q8 13 Q7 14 Q7 15 VCCO 16 VCCO Q9 11 9 SW00907 Figure 1. Pin configuration Pin description SYMBOL VCC CLK_SEL CLK0, CLK0 VBB CLK1, CLK1 VEE VCCO Q0-Q9 PIN 1 2 3, 4 5 6, 7 8 9, 16, 25, 32 31, 29, 27, 24, 22, 20, 18, 15, 13, 11 30, 28, 26, 23, 21, 19, 17, 14, 12, 10 DESCRIPTION Supply voltage Active clock select input Differential ECL/PECL input pair VBB output Differential HSTL input pair Ground Output drive power supply voltage Differential PECL outputs Q0-Q9 Differential PECL outputs ORDERING INFORMATION Type number n mber PCK111BD Package Name LQFP32 Description plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm Version SOT358-1 Temperature p range -40 to +70 C 2001 Sep 07 2 853-2281 27052 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 LOGIC SYMBOL CLK0 CLK0 CLK1 CLK1 1 0 10 Q0:9 Q0:9 FUNCTION TABLE CLK_SEL 0 1 Active input CLK0, CLK0 CLK1, CLK1 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. SYMBOL VCC ESDHBM ESDMM Supply voltage Electrostatic discharge (Human Body Model; 1.5 k, 100 pF) Electrostatic discharge (Machine Model; 0 k, 200 pF) PARAMETER LIMITS -0.5 to +4.6 >2 >200 UNIT V kV V RECOMMENDED OPERATING CONDITIONS SYMBOL VCC VIR Tamb Supply voltage Receiver input voltage Operating ambient temperature range in free air PARAMETER MIN 2.375 VEE -40 MAX 3.8 VCC +85 UNIT V V C 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 IEE ICC IIN VBB VBB VIH VIL VPP VCMR VOH VOL VOUTpp PARAMETER Internal supply current Output and internal supply current Input current Internal bias voltage Internal bias voltage Input HIGH voltage Input LOW voltage Input amplitude Common mode voltage Output HIGH voltage Output LOW voltage Differential output swing Difference of input = VIH - VIL (Note 1) Cross point of input = average (VIH, VIL) IOH = -30 mA IOL = -5 mA CONDITION Absolute value of current All outputs terminated 50 to VCC = -2.0 V Includes pullup/pulldown resistors VEE = -3.0 to -3.80 V VEE = -2.25 to -2.75 V -40 C MIN 45 270 -- -1.38 -1.38 -1.165 -1.810 0.5 VEE + 1.0 -1.3 -1.85 350 -40 C MAX 85 360 150 -1.26 -1.16 -0.880 -1.475 1.3 -0.3 -0.95 -1.4 -- 25 C MIN 60 290 -- -1.38 -1.38 -1.165 -1.810 0.5 VEE + 1.0 -- -- -- 25 C MAX 95 380 150 -1.26 -1.16 -0.880 -1.475 1.3 -0.3 -- -- -- 70 C MIN 65 300 -- -1.38 -1.38 -1.165 -1.810 0.5 VEE + 1.0 -1.2 -1.90 500 70 C MAX 105 380 150 -1.26 -1.16 -0.880 -1.475 1.3 -0.3 0.90 -1.5 -- UNIT mA mA A V V V V V V V V MV 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 IEE ICC IIN VBB VBB VIH VIL VPP VCMR Vdif Vx VOH VOL VOUTpp PARAMETER Internal supply current Output and internal supply current Input current Internal bias voltage Internal bias voltage Input HIGH voltage Input LOW voltage Input amplitude Common mode voltage Differential input voltage Input crossover voltage Output HIGH voltage Output LOW voltage Differential output swing Difference of input = VIH - VIL (Note 1) Cross point of input = average (VIH, VIL) Difference of input = VIH - VIL Cross point of input = average (VIH, VIL) IOH = -30 mA IOL = -5 mA CONDITION Absolute value of current All outputs terminated 50 to VCC = -2.0 V Includes pullup/pulldown resistors VEE = -3.0 to -3.80 V VEE = -2.25 to -2.75 V -40 C MIN 45 270 -- VCC -1.38 VCC -1.38 VCC -1.165 VCC -1.810 0.5 1.0 0.4 0.68 VCC -1.30 VCC -1.85 350 -40 C MAX 85 360 150 VCC -1.26 VCC -1.16 VCC -0.880 VCC -1.475 1.3 VCC -0.3 1.9 0.9 VCC -0.95 VCC -1.40 -- 25 C MIN 60 290 -- VCC -1.38 VCC -1.38 VCC -1.16 VCC -1.810 0.5 1.0 0.4 0.68 -- -- -- 25 C MAX 95 380 150 VCC -1.26 VCC -1.16 VCC -0.880 VCC -1.475 1.3 VCC -0.3 1.9 0.9 -- -- -- 70 C MIN 65 300 -- VCC -1.38 VCC -1.38 VCC -1.16 VCC -1.810 0.5 1.0 0.4 0.68 VCC -1.20 VCC -1.90 500 70 C MAX 105 380 150 VCC -1.26 VCC -1.16 VCC -0.880 VCC -1.475 1.3 VCC -0.3 1.9 0.9 VCC -0.90 VCC -1.50 -- UNIT mA mA A V V V V V V V V V V MV 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 Nominal (single input condition) VPP = 0.650 V, VCMR = VCC - 0.800 V (Note 1) Note 1 Note 1 Note 1 Note 1 Note 1 Functional to 1.5 GHz; Timing specifications apply to 1.0 GHZ All outputs terminated 50 to VCC - 2.0 V -40 C MIN -40 C MAX 25 C MIN 25 C MAX 70 C MIN 70 C MAX UNIT tPD tskew tskew tPD tskew tskew fMAX tr/tf Differential propagation delay Part-to-part skew Output-to-output same part skew Differential propagation delay Part-to-part skew Output-to-output same part skew Maximum output frequency Output rise/fall time at 20% to 80% 350 500 380 530 450 600 ps -- -- 280 -- -- 150 70 600 320 70 -- -- 300 -- -- 150 65 620 320 65 -- -- 370 -- -- 150 60 700 320 60 ps ps ps ps ps -- 1500 -- 1500 -- 1500 MHz 100 300 100 300 100 300 ps NOTE: 1. For operation with 2.5 V supply, the output termination is 50 to VEE. For operation with 3.3 V supply, the output termination is 50 to VCC - 2 V. AC ELECTRICAL CHARACTERISTICS VCC = 2.25 to 3.80 V, VEE = 0 V SYMBOL PARAMETER CONDITION Nominal (single input condition) VPP = 0.650 V, VCMR = VCC - 0.800 V (Note 1) Note 1 Note 1 Note 1 Note 1 Note 1 Functional to 1.5 GHz; Timing specifications apply to 1.0 GHZ All outputs terminated 50 to VCC - 2.0 V -40 C MIN -40 C MAX 25 C MIN 25 C MAX 70 C MIN 70 C MAX UNIT tPD tskew tskew tPD tskew tskew fMAX tr/tf Differential propagation delay Part-to-part skew Output-to-output same part skew Differential propagation delay Part-to-part skew Output-to-output same part skew Maximum output frequency Output rise/fall time at 20% to 80% 380 530 420 570 500 650 ps -- -- 300 -- -- 150 70 600 300 70 -- -- 350 -- -- 150 65 650 300 65 -- -- 430 -- -- 150 60 750 320 60 ps ps ps ps ps -- 250 -- 250 -- 250 MHz 100 300 100 300 100 300 ps NOTE: 1. For operation with 2.5 V supply, the output termination is 50 to VEE. For operation with 3.3 V supply, the output termination is 50 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 SOT358-1 2001 Sep 07 7 Philips Semiconductors Product data Low voltage 1:10 differential PECL clock driver PCK111 Data sheet status Data sheet status [1] Objective data Preliminary data Product status [2] Development Qualification Definitions 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. 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. 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. Product data Production [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. Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 (c) Koninklijke Philips Electronics N.V. 2001 All rights reserved. Printed in U.S.A. Date of release: 09-01 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. Document order number: 9397 750 09113 Philips Semiconductors 2001 Sep 07 8 |
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