this document is for maintenance purposes only and is not recommended for new designs
ds3667-12 fig. 2 functional diagrams SP8655A 200mhz 4 4 4 4 4 32, sp8657a 200mhz 4 4 4 4 4 20, sp8659b 200mhz 4 4 4 4 4 16 the SP8655A, sp8657a and sp8659b are low power ecl counters with open collector output capable of driving ttl or cmos and have internally biased inputs. features n ac coupled inputs n low power consumption n cmos/ttl compatible open collector output quick reference data n supply voltage: 50v n power consumption: 50mw n temperature range: 2 55 c to 1 125 c (SP8655A, sp8657a) 2 30 c to 1 70 c (sp8659b) 1 2 6 7 3 5 8 4 v ee (0v) clock input clock input v cc nc output nc nc cm8 fig. 1 pin connections - bottom view absolute maximum ratings supply voltage open collector output voltage storage temperature range max. junction temperature max. clock input voltage output sink current 8v 12v 2 65 c to 1 150 c 1 175 c 25v p-p 10ma ordering information sp8655 a cm sp8657 a cm sp8659 b cm clock input v ee (0v) output clock input 4 output stage d ck ck q q d d ck ck q q d d ck ck q q d d ck ck q q d d ck ck q q d 2 5 v cc 1 8 SP8655A clock input v ee (0v) output clock input 4 output stage d ck ck q q d d ck ck q q d ck ck q q d d ck ck q q d d ck ck q q d 2 5 v cc 1 8 sp8657a ref clock input v ee (0v) output clock input 4 output stage d ck ck q q d d ck ck q q d d ck ck q q d d ck ck q q d 2 5 v cc 1 8 sp8659b advance information
2 sp8655/7/9 maximum frequency (sinewave input) minimum frequency (sinewave input) power supply current output high voltage output low voltage electrical characteristics unless otherwise stated, the electrical characteristics are guaranteed over specified supply, frequency and temperature range supply voltage, v cc = 50v 025v, v ee = 0v temperature, t amb = 2 55 c to 1 125 c (SP8655A, sp8657a), 2 30 c to 1 70 c (sp8659b) characteristic f max f min i cc v oh v ol 200 75 40 13 045 mhz mhz ma v v value symbol units max. min. input = 400-800mv p-p input = 400-800mv p-p v cc = 5v, c load < 5pf, pin 4 = 15k w to 10v v cc = 5v, pin 4 = 15k w to 10v conditions notes 1. the test configuration for dynamic testing is shown in fig.5. 2. above characteristics are not tested at 25 c (tested at low and high temperatures only). operating notes 1.the clock inputs (pins 1 and 8) should be capacitively coupled to the signal source. when driven single ended, the input signal path is completed by a capacitor from the unused input to ground. 2. in the absence of a signal the devices will self-oscillate. this can be prevented by connecting a 39k w resistor from either input to ground. if the device is driven single ended, it is recommended that the pull-down resistor be connected to the decoupled unused input. there will be a loss in sensitivity of approximately 200mv. 3. the device will operate down to dc but input slew rate must be better than 100v/ m s. 4. the open collector output will drive three ttl loads, and therefore requires a a suitable resistor to v cc to maintain noise immunity. in order to maintain noise immunity on transitions, this resistor should not exceed 47k w . for interfacing to cmos, the open collector may be restored to a 1 10v line via a 33k w resistor. 5. input impedance varies as a function of frequency; see fig. 4. 6. the rise time of the open collector output waveform is directly proportional to the load capacitance and load resistor value. therefore, the load capacitance should be minimised and the load resistor kept to a minimum compatible with system power requirements. in the test configuration of fig. 5, the output rise time is approximately 20ns and the fall time is typically 10ns. fig. 3 typical input characteristic 1200 1000 800 600 400 200 0 0 50 100 150 200 250 input frequency (mhz) input amplitude (mv p-p) * tested as specified in table of electrical characteristics guaranteed * operating window
3 sp8655/7/9 j 2 j 1 j 0.5 j 0.2 0 2 j 0.2 2 j 0.5 2 j 1 2 j 2 1 0.5 0.2 j 5 2 j 5 2 5 50 100 200 fig. 4 typical input impedance. test conditions: supply voltage = 50v, ambient temperature = 25 c, frequencies in mhz, impedances normalised to 50 w dut 1k 100n sampling scope input 4 8 1n from generator to sampling scope 5 1n v cc 2 10n 7p 1 1 10v 33k fig. 5 test circuit 4 5 2k 1 8 2 bias cmos 33k 10k 1n 1n 1n 1 5v input 2k divide by 32 (sp8655) 20 (sp8657) 16 (sp8659) 1 5v / 1 10v (depending on cmos supply voltage) fig. 7. interfacing to ttl. load not to exceed 3 ttl unit loads sp8655/7/9 4 2 1 5v 22k ttl fig. 6. typical application circuit showing interfacing
4 sp8655/7/9 headquarters operations gec plessey semiconductors cheney manor, swindon, wiltshire sn2 2qw, united kingdom. tel: (0793) 518000 fax: (0793) 518411 gec plessey semiconductors p.o. box 660017 1500 green hills road, scotts valley, ca95067-0017 united states of america. tel (408) 438 2900 fax: (408) 438 5576 customer service centres l france & benelux les ulis cedex tel: (1) 64 46 23 45 fax : (1) 64 46 06 07 l germany munich tel: (089) 3609 06-0 fax : (089) 3609 06-55 l italy milan tel: (02) 66040867 fax: (02) 66040993 l japan tokyo tel: (3) 5276-5501 fax: (3) 5276-5510 l north america scotts valley, usa tel: (408) 438 2900 fax: (408) 438 7023. l south east asia singapore tel: (65) 3827708 fax: (65) 3828872 l sweden stockholm tel: 46 8 702 97 70 fax: 46 8 640 47 36 l uk, eire, denmark, finland & norway swindon tel: (0793) 518510 fax : (0793) 518582 these are supported by agents and distributors in major countries world-wide. ? gec plessey semiconductors 1994 publication no. ds3667 issue no. 1.2 march 1994 this publication is issued to provide information only which (unless agreed by the company 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. no warranty or guarantee express or implied is made regard ing the capability, performance or suitability of any product or service. the company reserves the right to alter without prior knowledge the specification, design or price 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. 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 the company's conditions of sale, w hich are available on request. package details dimensions are shown thus: mm (in). 483/533 p.c.d. (0190/0210) 45 041/053 (0016/0021) 1270/1428 (0500/0570) 419/470 (0165/0185) 800/851 (0315/0335) 863/939 (0340/0370) 025/102 (0010/0040) 1 2 3 4 5 6 7 8 notes 1. controlling dimensions are inches. 2. this package outline diagram is for guidance only. please contact your gps customer service centre for further information. 8-lead metal can - cm8
purchase of zarlink s i 2 c components conveys a licence under the philips i 2 c patent rights to use these components in an i 2 c system, provided that the system conforms to the i 2 c standard speci?ation as de?ed by philips zarlink and the zarlink semiconductor logo are trademarks of zarlink semiconductor inc. copyright 2001, zarlink semiconductor inc. all rights reserved. technical documentation - not for resale information relating to products and services furnished herein by zarlink semiconductor inc. trading as zarlink semiconductor o r its subsidiaries (collectively ?arlink? is believed to be reliable. however, zarlink 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 pa rties 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, u nder patents or other intellectual property rights owned by zarlink or licensed from third parties by zarlink, whatsoever. purchasers of products are also hereby noti?d that the use of product in certain ways or in combination with zarlink, or non-zarlink furnished goods or services may infringe patents or other intellectual property rights owned by zarlink. this publication is issued to provide information only and (unless agreed by zarlink in writing) may not be used, applied or re produced 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 sp eci?ations, services and other information appearing in this publication are subject to change by zarlink without notice. no warranty or guarantee express or implied is m ade 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 speci? piece of equipment. it is the user s responsibility to fully determine the performance an d 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 n ecessarily 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 signi?ant i njury or death to the user. all products and materials are sold and services provided subject to zarlink semiconductor s conditions of sale which are available on request. world headquarters - canada tel: +1 (613) 592 0200 fax: +1 (613) 592 1010 north america - west coast tel: (858) 675-3400 fax: (858) 675-3450 north america - east coast tel: (978) 322-4800 fax: (978) 322-4888 asia/pacific tel: +65 333 6193 fax: +65 333 6192 europe, middle east, and africa (emea) tel: +44 (0) 1793 518528 fax: +44 (0) 1793 518581 http://www.zarlink.com
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