View ATA2525-14_8126472.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

4854h-auto-03/14 features no external components except pin diode supply-voltage range: 4.5v to 5.5v high sensitivity due to automatic sensitivity adaption (agc) and automatic strong signal adaption (atc) high immunity against disturbances from daylight and lamps small size and innovative pad layout available for carrier frequencies between 33khz to 40khz; adjusted by zener diode fusing ttl and cmos compatible suitable minimum burst length 10 pulses/burst applications home entertainment applications home appliances remote control equipment ata2525 ir receiver assp datasheet
ata2525 [datasheet] 4854h?auto?03/14 2 1. description the atmel ? ic ata2525 is a complete ir receiver for data communication that was developed and optimized for use in carrier-frequency-modulated transmission applications. the ic combines small size with high sensitivity as well as high suppression of noise from daylight and lamps. an innovative and patented pad layout offers uni que flexibility for assembly of ir receiver modules. the atmel ata2525 is available with standard carrier frequencies (33, 36, 37, 38, 40khz) and 3 different noise suppression regulation types (standard, lamp, no ise) covering requirements of different high-volume remote control solutions (please refer to selection guide available for atmel ata2525/ata2526). the atmel ata2525 operates in a supply voltage range of 4.5v to 5.5v. the function of atmel ata2525 can be described using the block diagram (see figure 1-1 on page 2 ). the input stage meets two main functions. first, it provides a suitable bias voltage for the pin diode. secondly, the pulsed photo-current signals ar e transformed into a voltage by a special circuit which is opt imized for low-noise applications. after amplification by a c ontrolled g ain a mplifier (cga), the signals have to pass a tuned integr ated narrow bandpass filter with a center frequency f 0 which is equivalent to the chosen carrier frequency of the input signal. the demodulator is used to convert the input burst signal into a digital envelope output pulse and to evaluate the signal information quality, i.e., unwanted pulses will be suppressed at the out put pin. all this is done by means of an integrated dynamic feedback circuit which varies the gain as a function of the present environm ental condition (ambient light, modulated lamp s etc.). other special features are used to adapt to the current application to secure best transmission quality. figure 1-1. block diagram input vs out gnd ata2525 oscillator carrier frequency f 0 modulated ir signal min 10 pulses agc/atc and digital control cga and filter micro- controller demodulator in
3 ata2525 [datasheet] 4854h?auto?03/14 2. absolute maximum ratings stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions beyond t hose indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability . parameters symbol value unit supply voltage v s ?0.3 to +6 v supply current i s 3 ma input voltage v in ?0.3 to v s v input dc current at v s = 5v i in 0.75 ma output voltage v o ?0.3 to v s v output current i o 10 ma operating temperature t amb ?25 to +85 c storage temperature t stg ?40 to +125 c power dissipation at t amb = 25c p tot 30 mw 3. electrical characteristics t amb = ?25c to +85c, v s = 4.5v to 5.5v unless otherwise specified. no. parameters test conditions symbol min. typ. max. unit type* 1 supply 1.1 supply-voltage range v s 4.5 5 5.5 v c 1 . 2 supply current i in = 0 i s 0.8 1.1 1.4 ma b 2 output 2.1 internal pull-up resistor t amb = 25c; see figure 5-7 on page 8 r pu 40 k a 2.2 output voltage low i l = 2ma; see figure 5-7 on page 8 v ol 250 mv b 2.3 output voltage high t amb = 25c v oh v s ? 0.25 v s v a 2.4 output current clamping r 2 = 0; see figure 5-7 on page 8 i ocl 8 ma b 3 input 3.1 input dc current v in = 0; see figure 5-7 on page 8 i in_dcmax ?85 a c 3.2 input dc current; see figure 5-1 on page 5 v in = 0; v s = 5v, t amb = 25c i in_dcmax ?530 ?960 a b 3.3 minimum detection threshold current; see figure 5-2 on page 5 test signal: see figure 5-6 on page 7 v s = 5v, t amb = 25c, i in_dc = 1a; square pp, burst n = 16, f = f 0 ; t per = 10ms, see figure 5-6 on page 7 ; ber = 50 (1) i eemin ?600 pa b *) type means: a =100% tested, b = 100% correlation test ed, c = characterized on samples, d = design parameter notes: 1. ber = bit error rate; e.g., ber = 5% means that with p = 20 at the input pin 19...21 pulses can appear at the pin out 2. after transformation of in put current into voltage
ata2525 [datasheet] 4854h?auto?03/14 4 3.4 minimum detection threshold current with ac current disturbance iin_ac100 = 3 a at 100 hz test signal: see figure 5-6 on page 7 v s = 5v, t amb = 25c, i in_dc = 1a, square pp, burst n = 16, f = f 0 ; t per = 10ms, see figure 5-6 on page 7 ; ber = 50% (1) i eemin ?850 pa c 3.5 maximum detection threshold current test signal: see figure 5-6 on page 7 v s = 5v, t amb = 25c, i in_dc = 1a; square pp, burst n = 16, f = f 0 ; t per = 10ms, see figure 5-6 on page 7 ; ber = 5% (1) i eemax ?400 a d 4 controlled amplifier and filter 4.1 maximum value of variable gain (cga) v s = 5v, t amb = 25c g varmax 51 db d 4.2 minimum value of variable gain (cga) v s = 5v, t amb = 25c g varmin ?5 db d 4.3 total internal amplification (2) v s = 5v, t amb = 25c g max 71 db d 4.4 center frequency fusing accuracy of bandpass v s = 5v, t amb = 25c f 0_fuse ?3 f 0 +3 % a 4.5 overall accuracy center frequency of bandpass f 0 ?6.7 f 0 +4.1 % c 4.6 bpf bandwidth ?3db; f 0 = 38khz; see figure 5-4 on page 6 b 3.5 khz b 3. electrical characteristics (continued) t amb = ?25c to +85c, v s = 4.5v to 5.5v unless otherwise specified. no. parameters test conditions symbol min. typ. max. unit type* *) type means: a =100% tested, b = 100% correlation test ed, c = characterized on samples, d = design parameter notes: 1. ber = bit error rate; e.g., ber = 5% means that with p = 20 at the input pin 19...21 pulses can appear at the pin out 2. after transformation of in put current into voltage
5 ata2525 [datasheet] 4854h?auto?03/14 4. reliability electrical qualification (1000h at 15 0c) in molded so8 plastic package 5. typical electrical curves at t amb = 25c figure 5-1. v in versus i in_dc , v s = 5v figure 5-2. i eemin versus i in_dc , v s = 5v 2 2.94 2.79 2.44 1.14 1 0.1 0 0 3 i in_dc (a) v in (v) 1.0 1000.0 100.0 10.0 0 1 10 100 0.1 1 1000 100 10 i in_dc (a) i eemin (na) 0.49 3.6 1.2
ata2525 [datasheet] 4854h?auto?03/14 6 figure 5-3. data transmission rate, v s = 5v figure 5-4. typical bandpass curve q = f 0 / f; f = ?3db values. example: q = 1/(1.047 ? 0.954) = 11 1750 1500 750 0 250 500 1000 1250 44 40 36 32 28 f 0 (khz) bits/s noise type 1119 1418 980 730 1493 931 693 547 735 lamp type standard type 1.1 0.8 0.9 0.4 0.5 0.98 1.00 1.04 1.06 1.08 1.02 0.96 0.94 0.92 0.6 0.7 1.0 f/f 0 relative amplitude f -3db -3db
7 ata2525 [datasheet] 4854h?auto?03/14 figure 5-5. illustration of used terms example: f = 30khz, burst with 16 pulses, 16 periods figure 5-6. test circuit 116 envelope 16 t envelope 1 17056s/data word telegram pause data word data word in out out 533s 17ms 33s 533s t doff t rep = 62ms t don burst (n = 16 pulses) 7 7 7 1066s period (p = 16) 1nf 16 u2 dc u1 i in_dc i in v pulse i pin_ac100 i ee f 0 i in_dc = u2/40k r 1 = 220 i ee = u1/400k t per = 10ms v dd = 5v c 1 = 4.7f 20k - + 20k 1nf gnd out + ata2525 in vs 400k
ata2525 [datasheet] 4854h?auto?03/14 8 figure 5-7. application circuit i in_dc i in v in v o i ee i s i ocl i l r 1 = 220 c 2 (1) 470pf r 2 (1) > 2.4k (1) optional c 1 = 4.7f + gnd out microcontroller ata2525 in rpu = 40k in vs v dd = 5v
9 ata2525 [datasheet] 4854h?auto?03/14 6. chip dimensions figure 6-1. chip size in m note: pad coordinates are for lower left corner of the pad in m from the origin 0,0 note: 1. value depends on manufacture location. dimensions length inclusive scribe 1.04mm width inclusive scribe 1.11mm thickness 290 5% pads 80 80 fusing pads 60 60 pad metallurgy material alcu/alsiti (1) thickness 0.8m finish material si 3 n 4 /sio 2 (1) thickness 0.7/0.3m 0,0 990,960 scribe width length ata2525 out versioning 393,839 224,495 47,72 603,828 zapping in vs gnd
ata2525 [datasheet] 4854h?auto?03/14 10 8. pad layout figure 8-1. pad layout 7. ordering information delivery: unsawn wafers (ddw) in box extended type number d (2) type ata2525s1xx (1) c-ddw 1493 standard type: high data rate ata2525s3xx (1) c-ddw 980 lamp type: enhanced suppression of disturbances, secure data transmission ata2525s5xx (1) c-ddw 730 noise type: best suppression of disturbances, low data rate notes: 1. xx means the used carrier frequency value (33, 36, 37, 38 or 40khz) 2. maximum data transmission rate up to bits/s with f 0 = 40khz, v s = 5v (see figure 5-2 on page 5 table 8-1. pin description symbol function out data output vs supply voltage gnd gnd in input pin diode zapping f 0 adjust versioning type adjust gnd in out zapping vs ata2525 versioning
11 ata2525 [datasheet] 4854h?auto?03/14 9. revision history please note that the following page numbers re ferred to in this section re fer to the specific revision mentioned, not to this document. revision no. history 4854h-auto-03/14 ? put datasheet in the newest template 4854g-auto-05/10 ? page 3: thermal resistance table deleted ? page 3 and 4: pin column in electrical characteristics table deleted 4854f-auto-09/09 ? put datasheet in newest template ? ordering information table changed 4854e-auto-10/06 ? features on page 1 changed ? applications on page 1 changed ? section 1 ?description? on page 1 changed ? section 2 ?pin configuration? on page 2 deleted ? section 4 ?electrical characterist ics? number 3.3 on page 4 changed ? section 4 ?electrical characteristics? number 3.4 on page 4 changed ? section 6 ?esd? on page 5 deleted ? section 10 ?ordering information? on page 10 changed 4854d-auto-04/06 ? put datasheet in a new template ? section 10 ?ordering information? on page 10 changed
x x xx x x atmel corporation 1600 technology drive, san jose, ca 95110 usa t: (+1)(408) 441.0311 f: (+1)(408) 436.4200 | www.atmel.com ? 2014 atmel corporation. / rev.: rev.: 4854h?auto?03/14 atmel ? , atmel logo and combinations thereof, enabling unlimited possibilities ? , and others are registered trademarks or trademarks of atmel corporation or its subsidiaries. other terms and product names may be trademarks of others. disclaimer: the information in this document is provided in c onnection with atmel products. no license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of atmel products. except as set forth in the atmel terms and condit ions of sales located on the atmel website, atmel assumes no liability wh atsoever and disclaims any express, implied or statutory warranty relating to its p roducts including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or non-infringement. in no event shall atmel be liable for any direct, indirect, consequential, pu nitive, special or incidental damages (including, without limi tation, damages for loss and profits, business interruption, or loss of information ) arising out of the use or inability to use this document, even if atmel has been advised of the possibility of such damages. atmel makes no r epresentations or warranties with respect to the accuracy or c ompleteness of the contents of this document and reserves the right to make changes to specificatio ns and products descriptions at any time without notice. atmel d oes not make any commitment to update the information contained herein. unless specifically provided otherwise, atme l products are not suitable for, and shall not be used in, automo tive applications. atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. safety-critical, military, and automotive applications disclaim er: atmel products are not designed for and will not be used in connection with any applications where the failure of such products would reasonably be expected to re sult in significant personal inju ry or death (?safety-critical a pplications?) without an atmel officer's specific written consent. safety-critical applications incl ude, without limitation, life support devices and systems, equipment or systems for t he operation of nuclear facilities and weapons systems. atmel products are not designed nor intended for use in military or aerospace applications or environments unless specifically designated by atmel as military-grade. atmel products are not designed nor intended for use in automot ive applications unless spec ifically designated by atmel as automotive-grade.

▲Up To Search▲

Price & Availability of ATA2525-14

	To Download ATA2525-14 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .