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PCK111 Low voltage 1:10 differential ECL/PECL/HSTL clock driver
Product data Supersedes data of 2002 Feb 15 2002 Dec 13
Philips Semiconductors
Philips Semiconductors
Product data
Low voltage 1:10 differential PECL clock driver
PCK111
FEATURES
* 85 ps part-to-part skew typical * 20 ps output-to-output skew typical * Differential design * VBB output * Low voltage VEE range of -2.25 V to -3.8 V for ECL * 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 CMOS clock select input Differential ECL/PECL/HSTL input pair Reference voltage output Differential ECL/PECL/HSTL input pair Ground Output drive power supply voltage Differential PECL outputs
Q0-Q9
Differential PECL outputs
ORDERING INFORMATION
Type number 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 range -40 to +85 C
2002 Dec 13
2
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 ESDCDM Supply voltage Electrostatic discharge (Human Body Model; 1.5 k, 100 pF) Electrostatic discharge (Machine Model; 0 k, 200 pF) Electrostatic discharge (Charge Device Model) PARAMETER LIMITS -0.5 to +4.6 >1.75 >200 >1000 UNIT V kV V V
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VIR VDIFF Tamb Supply voltage Receiver input voltage Input differential voltage1 V(CLKinN)- V(CLKin) Operating ambient temperature range in free air PARAMETER CONDITIONS MIN 2.25 VEE -- -40 MAX 3.8 VCC 1.00 +85 UNIT V V V C
NOTE: 1. To idle an unused differential clock input, connect one input terminal (e.g. CLK1) to VBB and leave its complimentary input terminal (e.g. CLK1) open-circuit, in which case CLK1 will default low by its internal pull-down reistor. Inputs should not be shorted to ground or VCC.
2002 Dec 13
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 VIH VIL VPP VCMR VOH VOL VOUTpp PARAMETER Internal supply current Output and internal supply current Input current Internal bias voltage Input HIGH voltage Input LOW voltage Input amplitude Common mode voltage Output HIGH voltage Output LOW voltage Differential output swing Single ended CLK_SEL Single ended CLK_SEL 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 -40 C MIN 45 270 -- -1.38 -1.165 0.2VEE -1.810 VEE 0.5 VEE + 1.0 -1.3 -1.85 350 -40 C MAX 85 360 150 -1.23 -0.880 VCC -1.475 0.8VEE 1.3 -0.3 -0.95 -1.4 -- 25 C MIN 60 290 -- -1.38 -1.165 0.2VEE -1.810 VEE 0.5 VEE + 1.0 -- -- -- 25 C MAX 95 380 150 -1.23 -0.880 VCC -1.475 0.8VEE 1.3 -0.3 -- -- -- 85 C MIN 65 300 -- -1.38 -1.165 0.2VEE -1.810 VEE 0.5 VEE + 1.0 -1.2 -1.90 500 85 C MAX 105 380 150 -1.23 -0.880 VCC -1.475 0.8VEE 1.3 -0.3 0.90 -1.5 -- UNIT mA mA A 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.
DC ELECTRICAL CHARACTERISTICS
VCC = VCCO = 2.25 to 3.80 V, VEE = 0 V SYMBOL IEE ICC IIN VBB PARAMETER Internal supply current Output and internal supply current Input current Internal bias voltage Single ended VIH Input HIGH voltage CLK_SEL Single ended VIL VPP VCMR VIHCMR Vx VOH VOL VOUTpp Input LOW voltage CLK_SEL Input amplitude Common mode voltage Input HIGH voltage (HSTL) Input crossover voltage (HSTL) Output HIGH voltage Output LOW voltage Differential output swing Cross point of input = average (VIH, VIL) IOH = -30 mA IOL = -5 mA Difference of input = VIH - VIL (Note 1) Cross point of input = average (VIH, VIL) CONDITION Absolute value of current All outputs terminated 50 to VCC = -2.0 V Includes pullup/pulldown resistors -40 C MIN 45 270 -- VCC -1.38 VCC -1.165 0.8VCC VCC -1.810 VEE 0.5 1.0 1.2 0.68 VCC -1.30 VCC -1.85 350 -40 C MAX 85 360 150 VCC -1.23 VCC -0.880 VCC VCC -1.475 0.2VCC 1.3 VCC-0.3 VCC 0.9 VCC -0.95 VCC -1.40 -- 25 C MIN 60 290 -- VCC -1.38 VCC -1.165 0.8VCC VCC -1.810 VEE 0.5 1.0 1.2 0.68 -- -- -- 25 C MAX 95 380 150 VCC -1.23 VCC -0.880 VCC VCC -1.475 0.2VCC 1.3 VCC-0.3 VCC 0.9 -- -- -- 85 C MIN 65 300 -- VCC -1.38 VCC -1.165 0.8VCC VCC -1.810 VEE 0.5 1.0 1.2 0.68 VCC -1.20 VCC -1.90 500 85 C MAX 105 380 150 VCC -1.23 VCC -0.880 VCC VCC -1.475 0.2VCC 1.3 VCC-0.3 VCC 0.9 VCC -0.90 VCC -1.50 -- UNIT mA mA A V 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. 2002 Dec 13 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 -40 C MIN -40 C MAX 25 C MIN 25 C MAX 85 C MIN 85 C MAX UNIT
tPD tskew tskew tjitter fMAX tr/tf
Differential propagation delay Part-to-part skew Output-to-output same part skew Cycle-to-cycle jitter Maximum output frequency Output rise/fall time at 20% to 80%
350
500
380
530
450
590
ps
-- -- --
110 50 1 1500
-- -- -- --
110 50 1 1500
-- -- -- --
110 50 1 1500
ps ps ns MHz
Functional to 1.5 GHz; Timing specifications apply to 1.0 GHZ All outputs terminated 50 to VCC - 2.0 V
--
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.
2002 Dec 13
5
Philips Semiconductors
Product data
Low voltage 1:10 differential PECL clock driver
PCK111
NOTES
2002 Dec 13
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
2002 Dec 13
7
Philips Semiconductors
Product data
Low voltage 1:10 differential PECL clock driver
PCK111
REVISION HISTORY Rev Date _3 20021213
Description Product data (9397 750 10865); ECN 853-2281 29225 of 22 November 2002. Modifications: * Addition of jitter specification to datasheet. Product data (9397 750 09465); ECN 853-2281 27735 of 15 February 2002.
_2
20020215
2002 Dec 13
8
Philips Semiconductors
Product data
Low voltage 1:10 differential PECL clock driver
PCK111
Data sheet status
Level
I
Data sheet status[1]
Objective data
Product status[2] [3]
Development
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. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).
II
Preliminary data
Qualification
III
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. [3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
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 in the products--including circuits, standard cells, and/or software--described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). 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
Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 12-02
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
Document order number:
9397 750 10865
Philips Semiconductors
2002 Dec 13 9

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