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product specification ps016005-0204 zhx1820 slim series sir top look transceiver zilog worldwide headquarters ? 532 race street ? san jose, ca 95126-3432 telephone: 408.558.8500 ? fax: 408.558.8300 ? www.zilog.com
ps016005-0204 this publication is subject to replacement by a later edition. to determine whether a later edition exists, or to reques t copies of publications, contact: zilog worldwide headquarters 532 race street san jose, ca 95126-3432 telephone: 408.558.8500 fax: 408.558.8300 www.zilog.com zilog is a registered trademark of zilog inc. in th e united states and in other countries. all other products and/or service names mentioned herein may be trademarks of the companies with which they are associated. document disclaimer ?2004 by zilog, inc. all rights reserved. information in this publication concerning the devices, applications, or technology described is intended to suggest possible uses and may be superseded. zilog, inc. does not assume liability for or provide a representation of accuracy of the information, devices, or technology described in this document. zilog also does not assume liability for intellectual property infringement related in any manner to use of information, devices, or technology described herein or otherwise. devices sold by zilog, inc. are covered by warranty and limitation of liability provisions a ppearing in the zilog, inc. terms and conditions of sale. zilog, inc. makes no warranty of merchantabilit y or fitness for any pur pose. except with the express written approval of zilog, use of informati on, devices, or technology as critical components of life support systems is not authorized. no licens es are conveyed, implicitly or otherwise, by this document under any intellectual property rights.
zhx1820 slim sir top look transceiver ps016005-0204 table of contents iii table of contents description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 leda led driver anode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 txd transmit data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 rxd/receive data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 sd shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 vcc positive supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 gnd ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 recommended application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 electrical and timing specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mechanical drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 soldering and cleaning recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 reflow soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 manual soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 packing, storage, and baking recommendations . . . . . . . . . . . . . . . . . . . . . . 11 storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 baking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 moisture-proof packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 taping specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 customer feedback form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 customer information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 product information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 return information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 problem description or suggestion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
zhx1820 slim sir top look transceiver ps016005-0204 list of figures iv list of figures figure 1. slim sir transceiver block diagram . . . . . . . . . . . . . . . . . . . . . . . . . 2 figure 2. application block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 figure 3. i f -ie characteristics (0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 4. i f -leda characteristics (0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 5. directive characteristics (emitting) . . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 6. directive characteristics (receiving) . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 7. zhx1820 mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 8. alternate zhx1820 mechanical drawing . . . . . . . . . . . . . . . . . . . . . . 9 figure 9. temperature profile at the top surface of zhx1820 . . . . . . . . . . . 10 figure 10. zhx1820 packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 11. zhx1820 reel dimensions (unit: mm) . . . . . . . . . . . . . . . . . . . . . . 13 figure 12. alternate zhx1820 reel dimensions (unit: mm) . . . . . . . . . . . . . . 14 figure 13. zhx1820 tape dimensions and conf iguration (unit: mm) . . . . . . . 15 figure 14. alternate zhx1820 tape dimensions and configuration (unit: mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 list of tables table 1. pin out for the zhx1820 transceiver . . . . . . . . . . . . . . . . . . . . . . . . 2 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 3. recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . 5 table 4. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
zhx1820 slim sir top look transceiver ps016005-0204 1 description the zilog zhx1820 is a low-profile version of zilog?s popular zhx1010 1-meter transceiver. packaged in the ?top-look ? configuration (that is, the lens axis is perpendicular to the mounting surface), the transceiver is mechanically enhanced for ultra compact, power-conscious po rtable products, such as portable printers, handheld computers, and personal data assistants (pdas). designed to operate using the irda-data mode, the transceiver combines an infrared emitting diode (ired) emitter, a pin photodiode detector, a digital ac coupled led driver, and a receiver/decoder in a single package. the zilog zhx1820 provides an efficient implementation of the sir standard in a small-outline footprint format. application circuit space is also minimized, as only three components are required. zhx1820 also features an independently controlled shutdown that minimizes current draw to a maximum of 1 a. features ? compliant to irda data specification sir ? wide power supply voltage range, 2.4 to 5.5 v ? low-power, listening current, 90 a (typical) at 3.0 v ? slim form factor (9.0 mm long x 3.65 mm wide x 2.75 mm high) ? only two external components required ? telecom operating temperature range (?30 c to +85 c) with the zhx1820tv115thtr ? extended operating temperature range (?40 c to +85 c) with the ZHX1820TV115XHTR ? 0 to 1 meter minimum link distance; 0 to 1.5 meters typical (?30 c to +85 c) ? 0 to 80 cm minimum link distance; 0 to 1.2 meters typical (below 30 c) ? meets iec 825-1 class 1 eye safety specifications
zhx1820 slim sir top look transceiver ps016005-0204 2 block diagram figure 1 is the block diagram for the slim sir transceiver. figure 1. slim sir tran sceiver block diagram pin descriptions the zhx1820 transceiver uses the pins li sted in table 1. the pins are described in this section. table 1. pin out for the zhx1820 transceiver pin name function i/o 1 leda ired anode ? 2 txd transmitter input i 3 rxd receiver output o 4 sd enables shutdown mode i 5v cc supply voltage ? 6 gnd ground ?
zhx1820 slim sir top look transceiver ps016005-0204 3 leda led driver anode (power) this output is connected to the led anode. current to the led is sourced through an external resistor. txd transmit data (input, active high) this cmos input is used to transmit seri al data. this input has an internal pull- down resistor that is disabled (open-circuited) during shutdown. rxd/receive data (output, active low) this output indicates received serial data. it is a tri-state, slew rate controlled cmos output (tri-stated during shutdown) driver capable of driving a standard cmos load. no external resistor is required. sd shutdown (input, active high) this input is used to place the integrated circuit into shutdow n mode. module shut- down current is influenced by the c hoice of capacitor used from v cc to ground. v cc positive supply (power) connect to positive power supply (2.4?5.5 v). filter with a 0.33- f ceramic bypass capacitor and terminating resi stor as close as possible to the v cc pin. gnd ground (power) connect to ground of the power supply. a solid ground plane is recommended for proper operation.
zhx1820 slim sir top look transceiver ps016005-0204 4 recommended application circuits figure 2 shows application block diagr ams for the zhx1820 transceiver. figure 2. application block diagrams
zhx1820 slim sir top look transceiver ps016005-0204 5 electrical and timing specifications table 2 through table 4 present the electr ical and timing specifications for the zhx1820 transceiver. table 2. absolute maximum ratings parameter symbol minim um maximum unit comment supply voltage v cc ?0.3 6.0 v v cc , gnd input voltage v in gnd?0.3 v cc +0.3 v txd, sd output (external) voltage v out gnd?0.3 v cc +0.3 v rxd led current i led 700 ma 20% duty cycle, ta = 2 5 c , t on < 90 s storage temperature t st ?40 100 c solder temperature t sol 240 c table 3. recommended operating conditions parameter symbol minimum maximum unit supply voltage v cc 2.4 5.5 v led voltage v led 2.4 6.0 v ambient operating temperature t op ?30 85 c ambient operating temperature * t op ?40 85 c note: * ZHX1820TV115XHTR only table 4. electrical characteristics parameter symbol condition min typical max unit remarks high-level input voltage v ih 0.6 v cc v cc +0.5 v txd, sd low-level input voltage v il ?0.5 0.2 v cc v txd, sd high-level output voltage v oh 2.2 v rxd low-level output voltage v ol 0.4 v rxd transmitter current i led 300 ma listening current i cc 90 150 a receive current i cc 90 150 a
zhx1820 slim sir top look transceiver ps016005-0204 6 figure 3 through figure 6 show vari ous electrical characteristics. figure 3. i f -ie characteristics (0 ) standby current i stb 1 asd=v cc , txd=0 v optical rise/fall time t rr , t rf 100 ns rxd pulse width t pwa sir=115.2 kbps 1.1 1.6 3.9 s power shutdown time t sd 1 s startup time t stu 200 s receiver latency t l 100 s trans. radiant intensity i e i led =260 ma 40 100 mw/sr h, v< (+ 15 ) min. threshold irradiance e emin v cc =3.3 v 2 3 w/cm 2 h, v< (+ 15 ) angle of half intensity 20 hor. and vert. light pulse rise, fall time t or , t of 40 ns optical pulse width t opw 20 stxd=?h? optical overshoot t opo 3% peak wavelength p 870 nm unless otherwise noted: v cc =3.3 v, gnd= 0 v, t a = 25 c table 4. electrical characteristics (continued) parameter symbol condition min typical max unit remarks
zhx1820 slim sir top look transceiver ps016005-0204 7 figure 4. i f -leda characteristics (0 ) figure 5. directive characteristics (emitting) figure 6. directive characteristics (receiving)
zhx1820 slim sir top look transceiver ps016005-0204 8 mechanical drawings in order to achieve the lowest possible l ead times, zilog maintains two assembly facilities. the mechanical drawings for these transceivers are shown in figure 7 and figure 8. these devices, which show mi nor mechanical differences, are func- tionally equivalent in every way and meet all zilog and irda standards and spec- ifications. although reels are never mixed, zilog reserves the right to ship from either facility in order to meet delivery requirements. figure 7. zhx1820 mechanical drawing tx rx 123456 1.325 1.650 2.650 2.725 2.675 2.370 2.580 1.750 0.450 3.875 2.325 0.775 1.55 lens view contacts view pinout (1) led anode (2) txd (3) rxd (4) sd (5) vcc (6) gnd 0.80 0.80 0.80 0.80 1.55 1.425 1.325 mounting center 4.325 0.45 0.45 0.75 top look solder pad layout 0.700 0.900 0.850 side view 8.650 3.43 ref 3.545 ref emitting center receiving center note that this style has a smaller emitter lens than receive lens this style has optional side solder vias (ground) tolerances for 0.x or 0.xx are +/- 0.25 mm tolerance for 0.xxx is +/- 0.13 mm
zhx1820 slim sir top look transceiver ps016005-0204 9 figure 8. alternate zhx1820 mechanical drawing 1 . 3 5 1 . 4 7 5 33.1 1.8 2 . 7 5 3 . 3 3 . 65 units: mm tolerance: +/- 0.2 pin function pin function 1 gnd 2 rxd 3 vcc 4sd 5 6 leda txd p1.550.15=7.750.1 0.7 3.875 (3.875) 0 . 4 7 5 (6) (5) (4) (3) (2) (1) 0 . 8 note that this style has a larger emitter lens than receive lens rx tx receiving center lens view contacts view top look solder pad layout 9.0 (ref.) emitting center this style does not have side solder vias side view 0.70 0.80 1.55 mounting center 4.325 0.45 0.45 0.75
zhx1820 slim sir top look transceiver ps016005-0204 10 soldering and cleaning recommendations follow these recommendations to maintain the performance of the zhx1820 transceiver. reflow soldering ? reflow soldering paste is recommended: melting temperature: 178 c ~ 192 c composition: sn 63%, pb 37% ? the recommended thickness of the metal mask is between 0.2 mm and 0.25 mm for screen printing. ? number of soldering times: 2 times maximum ? the temperature profile at the top surface of zhx1820, shown in figure 9, is recommended. figure 9. temperature profile at the top surface of zhx1820 manual soldering ? use 63/37 or silver solder. ? use a soldering iron of 25 w or smaller. adjust the temperature of the soldering iron below 300 c. ? finish soldering within 3 seconds. ? handle only after zhx1820 has cooled off.
zhx1820 slim sir top look transceiver ps016005-0204 11 cleaning perform cleaning after soldering under the following conditions: ? cleaning agent: alcohol ? temperature and time: 30 seconds bel ow 50 c or 3 minutes below 30 c ? ultrasonic cleaning: below 20 w packing, storage, and baking recommendations follow these recommendations to maintain the performance of the zhx1820 transceiver. storage to avoid moisture absorption, zhx1820 reels must remain in the original, unopened moisture-proof packing. parts must be soldered within 72 hours after unpacking. reels that have been unpacked, but will not be soldered within 72 hours, must be stored in a desiccator. baking parts that have been stored over 12 months or unpacked over 72 hours must be baked under the following guidelines. reels 60 c for 48 hours or more loose parts ? 100 c for 4 hours or more or ? 125 c for 2 hours or more or ? 150 c for 1 hour or more
zhx1820 slim sir top look transceiver ps016005-0204 12 moisture-proof packing in order to avoid moisture absorption du ring transportation and storage, zhx1820 reels are packed in aluminum envelopes (see figure 10) that contain a desiccant with a humidity indicator. while this pa ckaging is an impediment to moisture absorption, it is by no means absolute, and no warranty is implied. the user should store these parts in a contro lled environment to prevent moisture entry. please read the label on the aluminum bag for indicator instructions. figure 10. zhx1820 packaging
zhx1820 slim sir top look transceiver ps016005-0204 13 taping specifications figure 11 shows the reel di mensions for the zhx1820; figure 12 show the alter- nate reel dimensions. figure 13 shows t he tape dimensions and configuration for the zhx1820; figure 14 shows the alternat e tape dimensions and configuration. figure 11. zhx1820 reel dimensions (unit: mm) label pasted here 80 1 dia. 2 0.5 17.5 + 2.0 - 0.0 330 dia. 2.0 0.5 13.0 0.5 21.0 0.8 r 1.0 detail reel dimensions (unit:mm) 2,000 units per reel
zhx1820 slim sir top look transceiver ps016005-0204 14 figure 12. alternate zhx1820 reel dimensions (unit: mm) (unit: mm) tolerance: +0.2
zhx1820 slim sir top look transceiver ps016005-0204 15 figure 13. zhx1820 tape dimensions and configuration (unit: mm)
zhx1820 slim sir top look transceiver ps016005-0204 16 figure 14. alternate zhx1820 tape dime nsions and configuration (unit: mm) zhx1820 (alternate) orientation in the pocket of carrier tape. plated pad on the right side of the module. plated pad of zhx1820 on the right side. orientation to do taping pocket of carrier tape.
zhx1820 slim sir top look transceiver ps016005-0204 17 ordering information to order top look zhx1820, use zilog part number zhx1820tv115thtr (?30 c to +85 c) or ZHX1820TV115XHTR (?40 c to +85 c). in order to ensure the lowest possible lead times, zilog uses two different fab sources for the transceiver ic and two different packaging facilities for module assembly. both of these ics and packaging facilities have been extensively tested and qualified to meet the zhx1820 trans ceiver specifications. note:
zhx1820 slim sir top look transceiver ps016005-0204 18 customer feedback form if you experience any problems while operating the zhx1820 transceiver, or if you note any inaccuracies while reading this product specification, please copy and complete this form, then mail or fax it to zilog (see "return information," below). we also welcome your suggestions! customer information product information return information zilog system test/customer support 532 race street san jose, ca 95126-3432 fax: (408) 558-8300 web: www.zilog.com problem description or suggestion provide a complete description of the problem or your suggestion. if you are reporting a specific problem, include all steps leading up to the occurrence of the problem. attach additional pages as necessary. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ name country company phone address fax city/state/zip email serial # or board fab #/rev # software version document number host computer description/type

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