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1 description ltc 699x-x timerblox: oscillators, one shots, pwm, delay, power on reset demonstration circuit 1562 b is an engineering tool to design and evaluate the ltc699x-x family of timerblox ? circuits. the center section of the board contains a pre- configured timerblox function. dc1562b comes in twelve timing function variations as outlined in table 1. surrounding the center board is a playground prototyping area. the prototyping area has pads for dip-8, s8, ms8, or s6 packages with bread boarding connections to each pin and two convenient power buses and ground bus surrounding the entire area. this area is for conditioning signals to control the timer function and for adding loads controlled in time. l , lt, ltc, ltm, linear technology, timerblox and the linear logo are registered trademarks of linear technology corporation. all other trademarks are the property of their respective owners. using the demo boar d the center part of the board can be detached as a stream- lined cir cuit, to combine with a pre-existing circuit. for application flexibility, a provision is made for buffering and inverting the output of the timer. an optional nc7w04p6x sc70 package dual inverter can be added at u2 to provide this functionality. design files for this circuit board are available at http://www .linear.com/demo to understand the simplicity and flexibility of the timerblox function, download the appropriate data sheet from the lt c website, www.linear.com . each evaluation board comes with a timerblox part, decoupling cap and a bulk decou - pling 10 f tantalum cap. resistors are also installed that configure the timerblox device so that they are ready to use by simply adding power. changing the default configura - tion of the demo board is a simple matter of determining a few new resistor values. simply select a pair of resistor values for the div value from the data sheet div table, calculate the value of r set required, replace the resistor on the board, apply power, and go! single supply power between 2.25 v and 5.5 v and ground must be supplied directly to the center board. the outer prototyping section of the board can be used with single or dual supplies as required. when using the prototyping area, the outermost trace, which is ground, must be connected ( hand wired) to the ground on the center board section. all input and output holes are sized for 65 mil turret terminals, or wires can be soldered in the holes directly. changing the timer configuration requires changing re - sistor values on the center board. the resistor lead holes can accept pressed-in dip sockets, or resistors can be soldered directly in the holes. pads for 0805 surface mount resistors are also included at each position where a leaded resistor could be used. pads are also included for three 25- turn trim pots which can be used to replace r set ( r8) for master oscillator frequency adjustment, psf in ( r10) for voltage controlled options, and r dev ( r7) for frequency divider control to permit real-time adjustments while running. dc1562bfa demo manual dc1562b
2 using the demo boar d table 1. standard configuration for each version demo board number lt c part number part marking function configured function dc1562b-a LTC6990 ltdww hf osc 1khz to 10khz voltage controlled oscillator dc1562b-b ltc6991 ltdwy lf osc 1hz (1sec) fixed frequency oscillator dc1562b-c ltc6992-1 ltdxb pwm 10khz 0% to 100% duty cycle pwm dc1562b-d ltc6992-2 ltdxd pwm 10khz 5% to 95% duty cycle pwm dc1562b-e ltc6992-3 ltfcq pwm 10khz 0% to 95% duty cycle pwm dc1562b-f ltc6992-4 ltfcs pwm 10khz 5% to 100% duty cycle pwm dc1562b-g ltc6993-1 ltdxg one-shot ret* 100ms positive output pulse dc1562b-h ltc6993-2 ltdxj one-shot ret* retriggerable 100ms positive output pulse dc1562b-i ltc6993-3 ltfmh one-shot fet** positive 100ms output pulse dc1562b-j ltc6993-4 ltfmk one-shot fet** retriggerable 100ms positive output pulse dc1562b-k ltc6994-1 ltfcv delay output falling edge delayed 100ms from input falling edge dc1562b-l ltc6994-2 ltfcx delay output rise/fall edges delayed 100ms from input rise/fall edges dc1562b-m ltc6995-1 ltgjn por 1sec power on reset dc1562b-n ltc6995-2 ltgjq por 1sec power on reset * rising edge t riggered ** falling edge triggered dc1562bfa demo manual dc1562b
3 figure 1. dc1562b-x external connection diagram using the demo boar d dc1562bfa demo manual dc1562b
4 using the demo boar d figure 2. dc1562b-x center board connection diagram dc1562bfa demo manual dc1562b
5 defa u lt c irc u it c onfig u rations for e ach version out oe LTC6990 r set 95.3k 3 2 1 4 5 6 output enable output v control 5v to 8v r vco 432k dc1562b f03 v + div r div1 1000k r div2 681k v + (5v) 0.1f set gnd out mod ltc6992-1 r set 316k 3 2 1 4 5 6 v + output dc1562b f05 v + div r div1 976k r div2 182k v + (5v) 0.1f set gnd r mod2 1.96k r mod3 80.6k r mod1 10k v pwm 0v to 5v figure 3. dc1562b-a, 1khz to 10khz vco figure 4. dc1562b-b, 1hz (1sec period) fixed frequency oscillator figure 5. dc1562b-c, 10khz 0% to 100% duty cycle pwm out rst ltc6991 r set 768k 3 2 1 4 5 6 reset output dc1562b f04 v + div r div1 976k r div2 182k v + (5v) 0.1f set gnd dc1562bfa demo manual dc1562b
6 defa u lt c irc u it c onfig u rations for e ach version out mod ltc6992-3 r set 316k 3 2 1 4 5 6 v + output dc1562b f07 v + div r div1 976k r div2 182k v + (5v) 0.1f set gnd r mod2 1.82k r mod3 76.8k r mod1 10k v pwm 0v to 5v out mod ltc6992-4 r set 316k 3 2 1 4 5 6 v + output dc1562b f08 v + div r div1 976k r div2 182k v + (5v) 0.1f set gnd r mod2 1.87k r mod3 54.9k r mod1 10k v pwm 0v to 5v figure 6. dc1562b-d, 10khz 5% to 95% duty cycle pwm figure 7. dc1562b-e, 10khz 0% to 95% duty cycle pwm figure 8. dc1562b-f, 10khz 5% to 100% duty cycle pwm out mod ltc6992-2 r set 316k 3 2 1 4 5 6 v + output dc1562b f06 v + div r div1 976k r div2 182k v + (5v) 0.1f set gnd r mod2 1.74k r mod3 51.1k r mod1 10k v pwm 0v to 5v dc1562bfa demo manual dc1562b
7 defa u lt c irc u it c onfig u rations for e ach version out trig ltc6993-1 r set 154k 3 2 1 4 5 6 trigger output dc1562b f09 v + div r div1 1000k r div2 523k v + (5v) 0.1f set gnd out trig ltc6993-2 r set 154k 3 2 1 4 5 6 trigger output dc1562b f10 v + div r div1 1000k r div2 523k v + (5v) 0.1f set gnd out trig ltc6993-3 r set 154k 3 2 1 4 5 6 trigger output dc1562b f11 v + div r div1 1000k r div2 523k v + (5v) 0.1f set gnd figure 9. dc1562b-g, rising edge triggered 100ms positive output pulse one-shot figure 10. dc1562b-h, rising edge retriggered 100ms positive output pulse one-shot figure 11. dc1562b-i, falling edge triggered 100ms positive output pulse one-shot dc1562bfa demo manual dc1562b
8 out trig ltc6993-4 r set 154k 3 2 1 4 5 6 trigger output dc1562b f12 v + div r div1 1000k r div2 523k v + (5v) 0.1f set gnd figure 12. dc1562b-j, falling edge retriggerable 100ms positive output pulse one-shot defa u lt c irc u it c onfig u rations for e ach version figure 13. dc1562b-k, 100ms delayed output falling edge from input falling edge figure 14. dc1562b-l, 100ms delayed output edge from input edge, both rising and falling edges out in ltc6994-2 r set 154k 3 2 1 4 5 6 input output dc1562b f14 v + div r div1 1000k r div2 523k v + (5v) 0.1f set gnd out in ltc6994-1 r set 154k 3 2 1 4 5 6 input output dc1562b f13 v + div r div1 523k r div2 1000k v + (5v) 0.1f set gnd dc1562bfa demo manual dc1562b
9 defa u lt c irc u it c onfig u rations for e ach version figure 15. dc1562b-m, 1sec active low power on reset figure 16. dc1562b-n, 1sec active low power on reset out rst ltc6995-1 r6 191k 3 2 1 4 5 6 reset output dc1562b f15 v + div r div1 1000k r div2 280k v + (5v) 0.1f set gnd r5 100k out rst ltc6995-2 r6 191k 3 2 1 4 5 6 reset output dc1562b f16 v + v + div r div1 1000k r div2 280k v + (5v) 0.1f set gnd r3 100k dc1562bfa demo manual dc1562b
10 p arts l ist item qty reference part description manufacturer/ part number 1 0 c1 ( opt .) cap., 0805 2 1 c2 cap., chip, x7r, 0.1f, 25v, 0805 tdk, c2012x7r1h104k 3 1 c3 cap., chip, x5r, 10f, 16v, 1206 taiyo yuden, emk316bj106kdt 4 24 e1-e16, e016-e18, e20-e24 testpoint, turret, .064" mill-max, 2308-2-00-80-00-00-07-0 5 0 r9-r11 ( opt .) res., 0805 6 0 r7, r8, r10 ( opt .) pot., 3266w or 3266y 7 0 u2 ( opt .) ic., nc7wz04p6x, sc-70 8 0 optional sockets for leaded components mill max, 8427-0-15-01-30-02-04-0 dc1562b-a 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 681k, 1% 0805 vishay, crcw0805681kfkea 4 1 r3 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 0 r5 (open) res., 0805 7 1 r6 res., chip, 432k, 1% 0805 vishay, crcw0805432kfkea 8 1 rset res., chip, 95.3k, 1% 0805 vishay, crcw080595k3fkea 9 1 u1 ic., timerblox family, sot-23 linear tech., LTC6990cs6 dc1562b-b 1 1 dc1562b general bom 2 1 r1 res., chip, 976k, 1% 0805 vishay, crcw0805976kfkea 3 1 r2 res., chip, 182k, 1% 0805 vishay, crcw0805182kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 768k, 1% 0805 vishay, crcw 0805768kfkea 9 1 u 1 ic., t imerblox family, sot-23 linear tech., ltc6991cs6 dc1562b-c 1 1 dc1562b general bom 2 1 r1 res., chip, 976k, 1% 0805 vishay, crcw0805976kfkea 3 1 r2 res., chip, 182k, 1% 0805 vishay, crcw0805182kfkea 4 1 r3 res., chip, 80.6k, 1% 0805 vishay, crcw080580k6fkea 5 1 r4 res., chip, 10k, 1% 0805 vishay, crcw080510k0fkea 6 1 r5 res., chip, 1.96k, 1% 0805 vishay, crcw08051k96fkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 316k, 1% 0805 vishay, crcw0805316kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6992cs6-1 dc1562b-d 1 1 dc1562b general bom 2 1 r1 res., chip, 976k, 1% 0805 vishay, crcw0805976kfkea 3 1 r2 res., chip, 182k, 1% 0805 vishay, crcw0805182kfkea 4 1 r3 res., chip, 51.1k, 1% 0805 vishay, crcw080551k1fkea 5 1 r4 res., chip, 10k, 1% 0805 vishay, crcw080510k0fkea 6 1 r5 res., chip, 1.74k, 1% 0805 vishay, crcw08051k74fkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 316k, 1% 0805 vishay, crcw0805316kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6992cs6-2 dc1562bfa demo manual dc1562b
11 item qty reference part description manufacturer/ part number dc1562b-e 1 1 dc1562b general bom 2 1 r1 res., chip, 976k, 1% 0805 vishay, crcw0805976kfkea 3 1 r2 res., chip, 182k, 1% 0805 vishay, crcw0805182kfkea 4 1 r3 res., chip, 76.8k, 1% 0805 vishay, crcw080576k8fkea 5 1 r4 res., chip, 10k, 1% 0805 vishay, crcw080510k0fkea 6 1 r5 res., chip, 1.82k, 1% 0805 vishay, crcw08051k82fkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 316k, 1% 0805 vishay, crcw0805316kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6992cs6-3 dc1562b-f 1 1 dc1562b general bom 2 1 r1 res., chip, 976k, 1% 0805 vishay, crcw0805976kfkea 3 1 r2 res., chip, 182k, 1% 0805 vishay, crcw0805182kfkea 4 1 r3 res., chip, 54.9k, 1% 0805 vishay, crcw080554k9fkea 5 1 r4 res., chip, 10k, 1% 0805 vishay, crcw080510k0fkea 6 1 r5 res., chip, 1.87k, 1% 0805 vishay, crcw08051k87fkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 316k, 1% 0805 vishay, crcw0805316kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6992cs6-4 dc1562b-g 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family, sot-23 linear tech., ltc6993cs6-1 dc1562b-h 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6993cs6-2 dc1562b-i 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6993cs6-3 p arts l ist dc1562bfa demo manual dc1562b
12 item qty reference part description manufacturer/ part number dc1562b-j 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6993cs6-4 dc1562b-k 1 1 dc1562b general bom 3 1 r1 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 2 1 r2 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6994cs6-1 dc1562b-l 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 523k, 1% 0805 vishay, crcw0805523kfkea 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 0 r6 (open) res., 0805 8 1 rset res., chip, 154k, 1% 0805 vishay, crcw0805154kfkea 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6994cs6-2 dc1562b-m 1 1 dc 1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 280k, 1% 0805 4 0 r3 (open) res., 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 res., chip, 100k, 1% 0805 vishay, crcw0805100kfkea 7 1 r6 res., chip, 191k, 1% 0805 8 0 rset (open) res., 0805 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6995cs6-1 dc1562b-n 1 1 dc1562b general bom 2 1 r1 res., chip, 1m, 1% 0805 vishay, crcw08051m00fkea 3 1 r2 res., chip, 280k, 1% 0805 4 0 r3 res., chip, 100k, 1% 0805 5 1 r4 res., chip, 0, 1% 0805 vishay, crcw08050000z0ea 6 1 r5 (open) res., 0805 7 0 r6 res., chip, 191k, 1% 0805 8 0 rset res., 0805 9 1 u1 ic., timerblox family sot-23 linear tech., ltc6995cs6-2 p arts l ist dc1562bfa demo manual dc1562b
13 information furnished by linear technology corporation is believed to be accurate and reliable. however, no responsibility is assumed for its use. linear technology corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. s chematic diagram a a b b c c d d e e 4 4 3 3 2 2 1 1 version table u1 assy type dc1562b-a dc1562b-b dc1562b-c dc1562b-d dc1562b-e dc1562b-f dc1562b-g dc1562b-h dc1562b-i dc1562b-j dc1562b-k dc1562b-l LTC6990cs6 ltc6991cs6 ltc6992cs6-1 ltc6992cs6-2 ltc6992cs6-3 ltc6992cs6-4 ltc6993cs6-1 ltc6993cs6-2 ltc6993cs6-4 ltc6993cs6-3 ltc6994cs6-2 ltc6994cs6-1 ????????????????????????????????????????????????????? ???????????????????????????????????????? r1 r2 681k ???????????? rset 100k 80.6k ?????????????????????????????? ???????????????????????????????? ???????????????????????????????? ???? * ???? ???? ???? ** r4 r3 r6 r5 mod trig mod mod trig trig mod psf oe trig rst trig trig open 1m 976k 976k 976k 976k 1m 1m 1m 1m 523k 1m 182k 182k 182k 182k 523k 523k 523k 523k 523k 1m open 51.1k 76.8k 54.9k open open open open open 0 0 0 0 0 0 10k 10k 10k 10k 0 0 open 432k 100k 1.96k 1.74k 1.82k 1.87k 100k 100k 100k 100k 100k 100k 95.3k 768k 316k open open open open open open open open open open open 316k 316k 316k 154k 154k 154k 154k 154k 154k ** configured function 1hz (1 sec) fixed frequency 1khz to 10khz vco 10khz, 0 - 100% duty cycle standard configurations table u1 assy type dc1562b-a dc1562b-b dc1562b-c dc1562b-d dc1562b-e dc1562b-f dc1562b-g dc1562b-h dc1562b-i dc1562b-j dc1562b-k dc1562b-l LTC6990cs6 ltc6991cs6 ltc6992cs6-1 ltc6992cs6-2 ltc6992cs6-3 ltc6992cs6-4 ltc6993cs6-1 ltc6993cs6-2 ltc6993cs6-4 ltc6993cs6-3 ltc6994cs6-2 ltc6994cs6-1 * 10khz, 5 - 95% duty cycle 10khz, 0 - 95% duty cycle 10khz, 5 - 100% duty cycle 100ms one shot, rising edge triggered 100ms re-triggerable (rising edge) one shot 100ms one shot, falling edge triggered 100ms re-triggerable (falling edge) one shot 100ms output falling edge delayed from trigger fall ing edge 100ms output rising edge delayed from trigger risin g edge 976k 182k tm 100k 191k open rst 1m 280k dc1562b-m ltc6995cs6-1 open 0 open 191k open rst 1m 280k dc1562b-n ltc6995cs6-2 100k 0 dc1562b-m ltc6995cs6-1 dc1562b-n ltc6995cs6-2 1sec. power on reset 1sec. power on reset ???????????????????????????? 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????????? ???????? ???????? technology ?????????????????? ?????????????????? ???????????????????? ??????????????????? ?????????????????????????????????????? ??????????????? ???????????????????????????????????????????????????? ???????????????????????????????????????????????????? ???????????????????????????????????????????????????? ?????????????????????????????????????????????????? ???????????????????????????????????????????????? ????????????????????????????????????????????????????? ??????????????????????????????????????????? ??????????????????????????????????????????????????? ???????????????????????????????????????????????????? ????????? ?????????????????????????????????????????????? ???????????? ?????????????? ? ???????????????????? ?? ????????? ???? ?????? ??? ??????? ?????????????????????????????????????????? ?? ??? ?? ??? ???? * ???? * ??? ??????? ??? ??????? ? ? ? ? ?? ???? ?? ???? ? ? ? ??? ??? ??? ??? ?? ???? ?? ???? ? ? ? ?? ???? ?? ???? ?? ??? ?? ??? ?? ???? ?? ???? ?? ????? ??? ?? ????? ??? ??? ??? ??? ??? ??? ???? ??? ???? ? ? ? ?? * ?? * ?? * ?? * ??? ??? ??? ??? ??? ??????? ??? ??????? ? ? ? ? ??? ???? ??? ???? ?? ????? ??? ?? ????? ??? ?? ???? ??? ?? ???? ??? ?? * ?? * ?? ?? ?? ?? ?? ??? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ??? ?? ??? ??? ??? ??? ??? ?? ???? ?? ???? ?? * ?? * ??? ??? ??? ??? ?? * ?? * u1 * u1 * ??? ? ??? ? ??? ? ??? ? ?? ? ??? ? ?? * ?? * ?? ??? ?? ??? ?? ??? ?? ??? dc1562bfa demo manual dc1562b
14 linear technology corporation 1630 mccarthy blvd., milpitas, ca 95035-7417 (408) 432-1900 fax : (408) 434-0507 www.linear.com ? linear technology corporation 2012 lt 0813 rev a ? printed in usa demonstration board important notice linear technology corporation ( lt c ) provides the enclosed product(s) under the following as is conditions: this demonstration board ( demo board) kit being sold or provided by linear technology is intended for use for engineering development or evaluation purposes only and is not provided by lt c for commercial use. as such, the demo board herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. as a prototype, this product does not fall within the scope of the european union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. if this evaluation kit does not meet the specifications recited in the demo board manual the kit may be returned within 30 days from the date of delivery for a full refund. the foregoing warranty is the exclusive warranty made by the seller to buyer and is in lieu of all other warranties, expressed, implied, or statutory, including any warranty of merchantability or fitness for any particular purpose. except to the extent of this indemnity, neither p arty shall be liable to the other for any indirect, special, incidental, or consequential damages. the user assumes all responsibility and liability for proper and safe handling of the goods. further, the user releases lt c from all claims arising from the handling or use of the goods. due to the open construction of the product, it is the users responsibility to take any and all appropriate precautions with regard to electrostatic discharge. also be aware that the products herein may not be regulatory compliant or agency certified (fcc, ul, ce, etc.). no license is granted under any patent right or other intellectual property whatsoever. lt c assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. lt c currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. please read the demo board manual prior to handling the product . persons handling this product must have electronics training and observe good laboratory practice standards. common sense is encouraged. this notice contains important safety information about temperatures and voltages. for further safety concerns, please contact a lt c applica- tion engineer. mailing address: linear technology 1630 mccarthy blvd. milpitas, ca 95035 copyright ? 2004, linear technology corporation dc1562bfa demo manual dc1562b

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