PTN2111 PHILIPS | Alldatasheet

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Technical content

/C0080 /C0115 /C0111/C0110/C0111 /C0115 PTN2111 1:10 LVDS clock distribution device Product Data

2001 Jun 19

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

22001 Jun 19 853-2263 26561

FEATURES

  • 100 ps part-to-part skew
  • 35 ps output-to-output skew
  • Differential design
  • Meets LVDS specification for driver outputs and receiver inputs
  • Reference voltage available output VBB
  • Low voltage VCC range of +2.375 V to 2.625 V
  • High signalling rate capability (above 622 MHz)
  • Supports open, short, and terminated input fail-safe (HIGH output state)
  • Programmable drivers power off control
  • Available in LQFP32 package

DESCRIPTION

The PTN2111 is a low skew programmable 1:10 LVDS clock distribution device. The selected input signal is fanned out to 10 identical differential outputs. The PTN2111 features an 11-bit Shift Register with a serial-in and a Control Register. The purpose of the Control Register is to enable or power off each output clock channel and to select the clock input. The PTN2111 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. The final result is a dependable guaranteed low skew device. The PTN2111 can be used for high performance clock distribution in +2.5 V systems with LVDS levels. Designers can take advantage of the device’s performance to distribute low skew clocks across the backplane or the board. PIN CONFIGURATION CK SI CLK0 CLK0 VBB CLK1 CLK1 8EN 17 Q6 GND V CC V CC GND ST00013 PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION

1 CK Control register clock

2 SI Control register serial-in/CLK_SEL

3 CLK0 Differential input

4 CLK0 Differential input

5 VBB Output reference voltage

6 CLK1 Differential input

7 CLK1 Differential input

8 EN Device enable/program

9, 25 GND Ground 16, 32 VCC Supply voltage 31, 29, 27, 24, 22, 20, 18, 15, 13, 11 Q[0:9] Differential outputs 30, 28, 26, 23, 21, 19, 17, 14, 12, 10 Q [0:9] Differential outputs TYPE NUMBER NAME DESCRIPTION VERSION PTN2111BD LQFP32 Plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mmSOT358-1

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

2001 Jun 19 3

/C0013 12 Shift Register 11-Bit Control Register 11-Bit 9876543210 SI EN CLK0 CLK1 SEL CK

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

2001 Jun 19 4

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. SYMBOL PARAMETER LIMITS UNIT VCC Supply voltage –0.3 to 2.8 V IOSD Driver short circuit current continuous ESD Electrostatic discharge (Human Body Model 1.5 kΩ , 100 pF) >2 kV Tj Junction temperature 150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER MIN MAX UNIT VCC Supply voltage 2.375 2.625 V VIR Receiver input voltage GND VCC Tamb Operating ambient temperature range in free air –40 +85 °C DC ELECTRICAL CHARACTERISTICS Tamb = –40 °C to +85 °C unless otherwise specified; VCC = 2.5 V ±5% (Notes 1, 2) SYMBOL PARAMETER CONDITIONS MIN TYP 2 MAX UNIT Driver VOD Output differential voltage R L = 100 Ω 250 350 450 mV ΔVOD VOD magnitude change R L = 100 Ω 50 mV VOS Offset voltage R L = 100 Ω 1.125 1.25 1.375 V ΔVOS VOS magnitude change R L = 100 Ω 50 mV IOS Output short circuit current VO = 0 V 15 40 mA IOSD O utput short circuit current VOD = 0 V 7 15 mA Receiver VIDH Input threshold HIGH 100 mV VIDL Input threshold LOW –100 mV I Input current VIN = 0 V 50 100 µA IIN Input current VIN = VCC 50 100 µA Device VBB Output reference voltage VCC = 2.5 V; IOUT  ≤ 100 µA 1.15 1.25 1.35 V ICCD Power supply current All drivers enabled and loaded; input frequency = 800 MHz 190 230 mA C IN Input capacitance VIN = 0 V to VCC 5 pF C OUT Output capacitance 5 pF VIH Logic input HIGH threshold VCC = 2.5 V 2 V VIL Logic input LOW threshold VCC = 2.5 V 0.8 V II Logic input current VCC = 2.5 V; VIN = VCC or GND ±10 µA NOTES: 1. All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. 2. All typical values are given for VCC = +2.5 V and Tamb = +25 °C, unless otherwise specified. 3. CL includes probe and fixture capacitance. 4. Generator waveforms for all tests unless otherwise specified: f = 1 MHz, ZO = 50 Ω , 50% duty cycle. 5. The PTN2111 is a current mode device, and only functions to datasheet specifications when a resistive load is applied to the drives outputs.

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

2001 Jun 19 5

AC ELECTRICAL CHARACTERISTICS (LVDS) Tamb = –40 °C to +85 °C unless otherwise specified; VCC = 2.5 V ±5% (Note 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT tTLH Transition time LOW to HIGH R L = 100 Ω; CL = 5 pF 460 560 ps tTHL Transition time HIGH to LOW R L = 100 Ω; CL = 5 pF 460 560 ps tPLH tPHL Propagation delay to output 2 ns fMAX Maximum input frequency 650 800 MHz Within-device skew 35 ps tskew Part-to-part skew 100 ps Pulse skew 50 ps NOTE: 1. Generator waveforms for all tests unless otherwise specified: f = 1 MHz, ZO = 50 Ω, 50% duty cycle.

2001 Jun 19 6

The shift register has a serial input to load the working configuration. Control Register can be configured only one time after each reset. controls Q9, D9 controls Q0, and D10 controls CLKIN. Clock0 or Clock1 with the SI pin, as shown in the Truth Table. Table 1. Truth Table of State Machine Inputs Table 2. Configuration of the Control Register Table 3. Truth Table of the Control Register

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

2001 Jun 19 7

LQFP32: plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm SOT358-1

Philips Semiconductors Product Data PTN21111:10 LVDS clock distribution device

2001 Jun 19 8

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 134). 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. Philips Semiconductors

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P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381  Copyright Philips Electronics North America Corporation 2001 All rights reserved. Printed in U.S.A. Date of release: 06-01 Document order number: 9397 750 08325 /C0080 /C0115 /C0111/C0110/C0111 /C0115 Data sheet status[1] Objective data Preliminary data Product data Product status[2] Development Qualification Production 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. Data sheet status [1] Please consult the most recently issued datasheet 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.