View DP1205C433LF_7229009.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

rev 4 may 2006 www.semtech.com 1 dp1205 433/868/915 mhz rf modules dp1205 ? c433/868/915 433, 868 and 915 mhz drop-in rf transceiver modules combine small form factor with high performance general description the dp1205s are complete radio transceiver modules operating in the 433, 868 and 915 mhz license free ism (industrial scientific and medical) frequency bands. based on the xe1205 transceiver, the dp1205 offers the unique advantage of both narrow-band and wide-band communication. offering high output power and exceptional receiver sens itivity, the radio module is suitable for applications seeking to satisfy the european (etsi en300-220-1and en301 439-3) or the north american (fcc part 15.247 and 15.249) regulatory standards. the dp1205 is suitable for operation in the european social alarm bands (25 khz channel spacing). its built-in 16-byte fifo and full spi simplify interfacing to the host controller. applications ? narrow-band and wide-band security systems ? voice and data over an rf link ? process and building control ? access control ? home automation ? home appliance interconnections key product features ? no rf knowledge required ? direct digital interface ? fully assembled and tested ? surface mount ? 30.5 mm x 18.5 mm ? supply voltage 2.4 v ? 3.6 v ? frequency synthesizer steps 500 hz ? output power is programmable up to 15 dbm ? high rx 0.1 % sensitivity down to -113 dbm at 4.8 kbps ? data rate up to 152.3 kbit/s ? current consumption tx = 62 ma at 15 dbm ? current consumption rx = 14 ma ? 16-byte fifo ? digital rssi (received signal strength indicator) ? digital fei (frequency error indicator) device options part number frequency band package DP1205C433LF 433 - 435 mhz board dp1205c915lf 902 - 928 mhz board dp1205c868lf 868 - 870 mhz board
? semtech 2006 www.semtech.com 2 dp1205 433/868/915 mhz rf modules table of contents 1 non-confor mance ................................................................................................................ ...................... 3 2 pin descr iption ................................................................................................................ ........................... 3 3 electrical char acteris tics ..................................................................................................... ..................... 4 3.1 absolute maximu m operati ng r anges.............................................................................................. ............. 4 3.2 specific ations ................................................................................................................. .............................. 5 4 functional d escripti on ......................................................................................................... ..................... 6 5 data operati on modes........................................................................................................... ..................... 7 6 serial contro l inte rface ....................................................................................................... ....................... 8 7 operating modes ................................................................................................................ ........................ 9 8 typical app lication............................................................................................................ ....................... 10 9 mechanical dimens ions.......................................................................................................... ................. 11 10 packaging info rmation.......................................................................................................... ................... 12
? semtech 2006 www.semtech.com 3 dp1205 433/868/915 mhz rf modules 1 non-conformance please note that the leaded version of this product exhibi ts a non-conformance. the non-conformance affects the clkout signal of the dp1205 which is not enabled at power- up of the module. it is also recommended to program all registers after power-up of the module. the lead-free versi on (suffix "lf") of this product does not exhibit these non- conformances. please note that all products whose date- codes are before 0706 (wwyy) exhibit a non- conformance to specification. the non-conformance affects the fifo buffer of the xe1205 transceiv er contained in this module as described in section 5 - data operation modes. for these date-codes, please use the fifo in this product only in conjunction with the technical note tn1205.01 (available from the semtech web site). all other date-codes are in conformanc e with the specification. 2 pin description 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 17 18 19 pin name i/o description 1 gnd ground 2 rf_in_out in/out rf input / output terminal 3 gnd ground 4 vdda supply voltage 5 gnd ground 6 vdd supply voltage 7 nss_config in spi select config 8 nss_data in spi select data / datain 9 irq0 out interrupt (pattern/fifoempty) 10 gnd ground 11 gnd ground 12 irq1 out interrupt (dclk/fifofull) 13 data in/out data 14 clkout out output clock at refer ence frequency divided by 2, 4, 8, 16, 32 15 miso out spi master input slave output 16 mosi in spi master output slave input 17 sck in spi clock 18 sw(0) in/out transmit/receive/stand-by/sleep mode select 19 sw(1) in/out transmit/receive/stand-by/sleep mode select
? semtech 2006 www.semtech.com 4 dp1205 433/868/915 mhz rf modules 3 electrical characteristics 3.1 absolute maximum operating ranges description min max unit supply voltage 2.4 3.6 v operating temperature -40 +85 o c storage temperature -55 125 o c soldering temperature (max 15 sec) 260 o c caution: esd sensitive device. precaution should be taken when handling the dev ice in order to prevent permanent damage life support policy and use in safety critical applications semtech products are not designed, intended, authorized or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. inclusion of semtech products in such appl ications is understood to be undertaken solely at the customer?s own risk.
? semtech 2006 www.semtech.com 5 dp1205 433/868/915 mhz rf modules 3.2 specifications the table below gives the specifications of the dp1205 modules under the following conditions: supply voltage vdd = 3.3v, temperature = 25 c, frequency deviation ? f = 5 khz, bit-rate = 4.8 kbit/s, base-band filter bandwidth bw ssb = 10 khz, carrier frequency fc = 434 mhz for the DP1205C433LF, fc = 869 mhz for the dp1205c868lf and fc = 915 mhz for the dp1205c915lf, bit error ra te ber = 0.1% (measured at the output of the bit synchronizer), antenna output matched at 50 ? . symbol parameter conditions min typ max units fr synthesizer frequency range DP1205C433LF dp1205c868lf dp1205c915lf 433 868 902 - - - 435 870 928 mhz mhz mhz iddsl sleep mode supply current - 0.2 1 a iddst standby mode supply current 39 mhz running - 0.85 1.1 ma iddr rx mode supply current 14 16.5 ma iddt tx mode supply current p rf = 5 dbm 33 40 ma p rf = 15dbm 62 75 ma rfs rf sensitivity a-mode -113 -110 dbm rfs_12 rf sensitivity at 1.2kbit/s a-mode, ber = 0.1% -118 -115 dbm fda frequency deviation programmable 1 - 255 khz br bit rate programmable 1.2 - 152.3 kb/s rfop rf output power programmable. rfop1 -3 0 - dbm rfop2 +2 +5 - dbm rfop3 +7 +10 - dbm rfop4 +12 +15 - dbm ts_str transmitter wake-up time from oscillator enabled - 250 350 s ts_sre receiver wake up time from oscillator enabled - 700 850 s ts_os quartz oscillator wake up time fundamental - 1 2 ms xtal quartz oscillator frequency 39 mhz vih digital input level high % vdd 75 - - % vil digital input level low % vdd - - 25 %
? semtech 2006 www.semtech.com 6 dp1205 433/868/915 mhz rf modules 4 functional description the truerf? dp1205 is a cost effective high performanc e radio transceiver module designed for the wireless transmission of digital information over distances up to 8 km. the module is based on the rf transceiver circuit from semtech, the truerf xe1205. for more information on the xe1205, please refer to the datasheet, av ailable from the semtech website: http://www.semtech.com the module also incorporates an antenna switch and a saw filter placed on the rx path. mosi sc k sw(0) sw(1) xe1205f vco tank loop filter xtal 39 mhz lna match saw pa match rf switch miso clkout dat a irq1 gnd gnd irq0 nss_ data nss_ config vdd gnd vdda gnd rf in/ out gnd
? semtech 2006 www.semtech.com 7 dp1205 433/868/915 mhz rf modules 5 data operation modes the xe1205 is user-programmable between two modes of operation: continuous mode : each bit transmitted or received is accessed directly at the data input/output pin. buffered mode : a 16-byte fifo is used to store each data byte trans mitted or received. this data is written to/read from the fifo via the spi bus. it reduces processor overhead and r educes connections (the data i nput/output pin is not used in this operation mode) in receiver mode, two lines are dedicated to interrupt information. the interrupt pins are irq0 and irq1. irq0 has 3 selectable sources. irq1 has 2 selectable s ources. the two following tables summarize the interrupt management. irqparam_rx_irq_0 mcparam_buffered_ mode irq0 irq0 interrupt source 00 1 output no interrupt available 01 1 output write_byte 10 1 output /fifoempty 11 1 output pattern 00 0 output pattern 01 0 output rssi_irq 10 0 output pattern 11 0 output pattern table 1: irq0 interrupt sources in receive mode. irqparam_rx_irq_1 mcparam_buffered_ mode irq1 irq1 interrupt source 00 1 output no interrupt available 01 1 output fifofull 10 1 output rssi_irq 11 1 output rssi_irq 00 0 output dclk 01 0 output dclk 10 0 output dclk 11 0 output dclk table 2: irq1 interrupt sources in receive mode. for more information about the data operation m odes, please refer to the xe1205 datasheet chapter: description. you can find this at http://www.semtech.com .
? semtech 2006 www.semtech.com 8 dp1205 433/868/915 mhz rf modules 6 serial control interface the xe1205 contains two spi-compatible serial interfaces, one to send and read the chip confi guration, the other to send and receive data in buffered mode. both interfaces are conf igured in slave mode and share the same pins miso (master in slave out), mosi (master out slave in), sck (serial clock). two additional pins are required to select the spi interface: nss_config to change or read the transceiver configuration, and nss_data to send or read data. figure 1 shows the connections between the transceiver and a microcontroller when buffered mode is used. spi data (slave) mosi miso sck spi config (slave) xe1205 core sw(0) sw(1) xe1205 nss_data c (master) nss_config nss_config mosi miso sck nss_data figure 1: connection between spi data , spi config and a microcontroller for more information about the serial interfac e, please refer to the xe1205 datasheet chapter: serial interface definition and principle of operation . you can find this at http://www.semtech.com .
? semtech 2006 www.semtech.com 9 dp1205 433/868/915 mhz rf modules 7 operating modes by default, the serial control interface is used for configur ation. it is also possible to change between the four modes (sleep, stand-by, receive, transmit) by using the two-bit signal sw(1:0). th is option is enabled by setting the bit mcparam_select_mode to ?1? in the configuration register. if mcparam_select_mode is low, the modes are defined by the register through the spi_c onfig interface and sw(1:0) may be used as an output to contro l, for example, an antenna switch. mcparam_select_mode bit 5, address 0 switch (pin) sw(1:0) mcparam_chip_mode bit 7-6, address 0 0 set in output sleep mode -> sw(1:0) = ?00? receiver mode -> sw(1:0) = ?01? transmitter mode -> sw(1:0) = ?10? stand-by mode -> sw(1:0) = ?00? 00 -> sleep mode 01 -> receive mode 10 -> transmit mode 11 -> stand-by mode 1 sw(1:0) = 00 -> sleep mode sw(1:0) = 01 -> receive mode sw(1:0) = 10 -> transmit mode sw(1:0) = 11 -> stand-by mode x for more information about the modes of operation, please refer to the xe 1205 datasheet on the semtech website http://www.semtech.com .
? semtech 2006 www.semtech.com 10 dp1205 433/868/915 mhz rf modules 8 typical application the schematic below shows the dp1205 interfaced with a semtech microcontroller xe 8801a/02/05a/06a/07a and the xe1205 used in buffered mode. 1 2 3 4 5 6 7 8 9 10 15 12 13 14 11 16 17 18 19 xe1205 1 vco 1 tank 11 loop 11 filter 11 xtal 11 39 mhz 11 lna match 11 saw 1 pa match 11 rf 1 switch 11 pd1 pd2 pd3 pd4 pd6 pd7 pd5 pd0 pa1 05a/06a/07a xe8801a/02/ gnd gnd rf in/out vdda gnd vdd nss_config nss_ data irq0 gnd gnd irq 1 data clkout miso mosi sck sw ( 0 ) sw ( 1 ) pa2 vcc 1nf 82 nh 0 ? 33 pf 100 pf 0 ?
? semtech 2006 www.semtech.com 11 dp1205 433/868/915 mhz rf modules 9 mechanical dimensions the following diagram shows the physical footprint and di mensions of the dp1205 drop-in module, which should be implemented on the mother board. xe1205f 1 2 3 4567 8 910 15 12 13 14 11 16 17 18 19 2.27 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 2.54 30.5 12.43 2.83 7.62 2.83 18.50 2.50 2.54 2.54 10.92 pad di mensi on footpr i nt advi ced 1.8 2.0
? semtech 2006 www.semtech.com 12 dp1205 433/868/915 mhz rf modules 10 packaging information
? semtech 2006 www.semtech.com 13 dp1205 433/868/915 mhz rf modules . contact information ? semtech 2006 all rights reserved. reproduction in whole or in part is prohibited wit hout the prior written consent of the copyright owner. t he information presented in this document does not form part of any quotation or contrac t, is believed to be accurate and reliable and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication there of does not convey nor imply any license under patent or ot her industrial or intellectual pr operty rights. semtech assumes no responsibility or liability whatsoever for any failure or unexpected operation resulti ng from misuse, neglect improper installa tion, repair or improper handling or unusual physica l or electrical stress including, but not limited to, exposure to parameters beyo nd the specified maximum ratings or oper ation outside the specified range. semtech products are not designed, intended, author ized or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. inclusion of semtech products in such applications is understood to be undertaken solely at the customer?s own risk. should a customer purchase or use semtech products for any such unauthorized app lication, the customer shall indemnify and hold semtech and its officers, employees, subsidiaries, affilia tes, and distributors harmless against all claims, costs damages and attorney fees which could arise. semtech corporation wireless and sensing products division 200 flynn road, camarillo, ca 93012 phone (805) 498-2111 fax : (805) 498-3804

▲Up To Search▲

Price & Availability of DP1205C433LF

	To Download DP1205C433LF Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .