SP8401 MITEL | Alldatasheet

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Technical content

Very Low Phase Noise 300MHz ÷10/11 The SP8401 is a very low phase noise variable modulus divider. Special circuit techniques have been used to reduce the phase noise considerably below that produced by standard dividers. The modulus control input is CMOS or TTL compatible. The SP8401 is packaged in a 28 pin plastic SO package to be compatible with the SP8400 and SP8402 devices.

FEATURES

n Very low Phase Noise (Typically -160dBc/Hz at 1kHz offset) n Supply Voltage 5V ABSOLUTE MAXIMUM RATINGS Supply Voltage 6.5V Output Current 20mA Storage Temperature Range -55 °C to +125°C Maximum Clock Input Voltage 2.5V p-p

ORDERING INFORMATION

SP8401 KG MPES(Commercial Grade) MP28 Fig.1 Pin connections - top view Supersedes February 1992 edition DS3230 - 3.1 April 1994 14 15 28N/C N/C N/C V CC +5V GND CLOCK INPUT CLOCK INPUT CLOCK INPUT CLOCK INPUT GND VCC +5V VCC +5V N/C MODULUS CONTROL N/C N/C N/C N/C N/C N/C N/C OUTPUT OUTPUT N/C VCC +5V N/C N/C N/C Fig.2 Typical single sideband phase noise measured at 300MHz (f) (dBc/Hz) –3dB Frequency (Hz) –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 –170 1 10 100 1k 10k 100k

Fig.3 Typical input sensitivity

ELECTRICAL CHARACTERISTICS

Guaranteed over: Supply voltage VCC = +4.75V to +5.25V Temperature Tamb = -10°C to +75°C Tested at +4.75V and +5.25V at Tamb = +25°C Min. Typ. Max. Supply current Output voltage swing Input sensitivity 50MHz to 300MHz Modulus Control Inputs Logic high voltage Low low voltage Input current Set up time t s Release time tr 440 140 (-4) 0.8 180 340 2.2 4, 11, 12, 18 20, 21 7, 8 Output loaded with 300R See Fig.5 p-p @ 330MHz input ÷ 11 mode Output loaded with 300R RMS Sine wave into 50 Ohms (dBm equivalent) See Fig.3 ÷ 10 mode ÷ 11 mode Modulus control input voltage 5V mA mV mV dBm V µA ns ns UnitsValue ConditionsCharacteristic Pin INPUT FREQUENCY (MHz) 400 300 200 100 0 50 100 150 200 250 300 350 355mV 140mV OPERATING WINDOW VIN mV RMS Fig.4 Timing diagram CLOCK INPUT MODULUS CONTROL INPUT OUTPUT t r ts

Fig.4 Test circuit 14 15 SP8401 220nF 10nF10nF1nF 1nF 1nF TTL/CMOS MODULUS CONTROL VCC RF 50R SIGNAL GENERATOR 2x330R 50R OUTPUT

M Mitel (design) and ST -BUS are registered trademarks of MITEL Corporation Mitel Semiconductor is an ISO 9001 Registered Company Copyright 1999 MITEL Corporation All Rights Reserved Printed in CANADA TECHNICAL DOCUMEN TATION - NO T FOR RESALE World Headquarters - Canada Tel: +1 (613) 592 2122 Fax: +1 (613) 592 6909 North America Asia/Pacific Europe, Middle East, Tel: +1 (770) 486 0194 Tel: +65 333 6193 and Africa (EMEA) Fax: +1 (770) 631 8213 Fax: +65 333 6192 Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581 http://www.mitelsemi.com Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively “Mitel”) is believed to be reliable. However, Mitel assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Mitel or licensed from third parties by Mitel, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Mitel, or non-Mitel furnished goods or services may infringe patents or other intellectual property rights owned by Mitel. This publication is issued to provide information only and (unless agreed by Mitel in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Mitel without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Mitel’s conditions of sale which are available on request.