{"id":7868,"date":"2026-06-28T03:07:41","date_gmt":"2026-06-28T03:07:41","guid":{"rendered":"https:\/\/ic-vendor.com\/em4095hmso16b\/"},"modified":"2026-06-28T11:40:01","modified_gmt":"2026-06-28T11:40:01","slug":"em4095hmso16b","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/em4095hmso16b\/","title":{"rendered":"EM4095HMSO16B+"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The EM4095HMSO16B+ is a 125kHz RFID analog front-end transceiver IC from EM Microelectronic with integrated PLL, OOK modulation, and AM demodulation in a TSSOP-16 package.<\/p>\n

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Carrier Frequency<\/td>\n100kHz to 150kHz (PLL self-adaptive)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.5V to 5.5V<\/td>\n<\/tr>\n
Supply Current<\/td>\n6mA typical (active), 1\u00b5A (sleep)<\/td>\n<\/tr>\n
Modulation (TX)<\/td>\nOOK (100%) or adjustable AM index<\/td>\n<\/tr>\n
Demodulation (RX)<\/td>\nAM demodulation with external filtering<\/td>\n<\/tr>\n
Antenna Drive<\/td>\nBridge driver (direct antenna drive)<\/td>\n<\/tr>\n
Crystal Required<\/td>\nNo (integrated PLL, no external quartz)<\/td>\n<\/tr>\n
Compatible Transponders<\/td>\nEM4102, EM4200, EM4450, EM4205\/EM4305<\/td>\n<\/tr>\n
Sleep Mode Current<\/td>\n1\u00b5A typical<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nTSSOP-16<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Integrated PLL self-adapts to antenna resonant frequency<\/li>\n
  • No external quartz crystal required<\/li>\n
  • 100-150kHz carrier frequency range for 125kHz RFID<\/li>\n
  • Direct antenna drive via integrated bridge drivers<\/li>\n
  • OOK and adjustable-index AM modulation for read\/write<\/li>\n
  • AM demodulation of transponder backscatter signal<\/li>\n
  • 1\u00b5A sleep mode for battery-powered readers<\/li>\n
  • USB-compatible supply voltage range (3.5-5.5V)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • 125kHz RFID reader basestations<\/li>\n
    • Car immobilizer systems<\/li>\n
    • Handheld RFID readers<\/li>\n
    • Animal identification readers<\/li>\n
    • Access control systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The EM4095HMSO16B+ is a 125kHz RFID analog front-end transceiver IC from EM Microelectronic with integrated PLL, OOK modulation, and AM demodulation in a TSSOP-16 package. Key Specifications Carrier Frequency 100kHz to 150kHz (PLL self-adaptive) Supply Voltage 3.5V to 5.5V Supply Current 6mA typical (active), 1\u00b5A (sleep) Modulation (TX) OOK (100%) or adjustable AM […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[319],"class_list":["post-7868","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-em-micro"],"acf":{"brief_explanation":"125kHz RFID AFE transceiver, integrated PLL, OOK\/AM, 1\u00b5A sleep, TSSOP-16","date_code":"","package_case":"TSSOP-16 (5.0 x 4.4 x 1.0mm, 0.65mm pitch)","in_stock":3200,"datasheet":"https:\/\/www.emmicroelectronic.com\/sites\/default\/files\/products\/datasheets\/4095-fs.pdf","price":"$2.15 @ 1ku","product_introduction":"The EM4095HMSO16B+ is a CMOS integrated transceiver from EM Microelectronic designed for 125kHz RFID basestation applications. It combines antenna driving, AM modulation for writable transponders, and AM demodulation of transponder backscatter in a single IC. The integrated PLL system self-adapts the carrier frequency to the antenna resonant frequency, eliminating the need for an external quartz crystal. Bridge drivers directly drive the antenna coil without external power transistors. For read\/write operation, OOK (100% modulation) or adjustable-index AM modulation is supported. The demodulated output is presented as a digital signal to the MCU. The 1\u00b5A sleep mode extends battery life in portable readers. The HMSO16B+ suffix denotes the TSSOP-16 package with tape-and-reel packaging.","working_principle":"The EM4095HMSO16B+ operates as a complete 125kHz RFID analog front end. The internal PLL locks the carrier frequency to the antenna resonant frequency, which is determined by the external antenna LC circuit. The bridge driver outputs (ANT1\/ANT2) generate a 125kHz differential signal that drives the antenna coil, creating the magnetic field that powers passive transponders. For writing to transponders, the MOD pin controls the modulation: setting MOD high switches one bridge driver leg off, creating OOK (100% amplitude modulation) that the transponder detects. For adjustable modulation index, the single-ended driver mode reduces the field by a controlled amount. The transponder responds by modulating its load, which appears as a small AM signal on the antenna voltage. The EM4095 samples this signal through DEMOD_IN, performs envelope detection and filtering with external capacitors, and presents the demodulated data on DEMOD_OUT. The RDY\/CLK output provides a clock synchronized to the carrier for the MCU to sample the demodulated data. The SHD (shutdown) pin puts the device into 1\u00b5A sleep mode. The CDEC_IN\/CDEC_OUT pins connect an external decoupling capacitor for the internal voltage regulator.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>DC2<\/td>Power<\/td>Internal regulator decoupling capacitor 2<\/td><\/tr>\n
      2<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>\n
      3<\/td>RDY\/CLK<\/td>Output<\/td>Ready\/clock output for MCU synchronization<\/td><\/tr>\n
      4<\/td>FCAP<\/td>Analog<\/td>Filter capacitor for PLL<\/td><\/tr>\n
      5<\/td>SHD<\/td>Input<\/td>Shutdown control (high=sleep, 1\u00b5A)<\/td><\/tr>\n
      6<\/td>ANT1<\/td>Output<\/td>Antenna bridge driver output 1<\/td><\/tr>\n
      7<\/td>DEMOD_OUT<\/td>Output<\/td>Demodulated data output to MCU<\/td><\/tr>\n
      8<\/td>DVDD<\/td>Power<\/td>Digital supply (3.5-5.5V)<\/td><\/tr>\n
      9<\/td>MOD<\/td>Input<\/td>Modulation control input (high=OOK modulation)<\/td><\/tr>\n
      10<\/td>DVSS<\/td>Power<\/td>Digital ground<\/td><\/tr>\n
      11<\/td>ANT2<\/td>Output<\/td>Antenna bridge driver output 2<\/td><\/tr>\n
      12<\/td>AGND<\/td>Power<\/td>Analog ground<\/td><\/tr>\n
      13<\/td>CDEC_IN<\/td>Analog<\/td>Internal regulator decoupling (to CDEC_OUT)<\/td><\/tr>\n
      14<\/td>VDD<\/td>Power<\/td>Supply (3.5-5.5V)<\/td><\/tr>\n
      15<\/td>CDEC_OUT<\/td>Analog<\/td>Internal regulator decoupling (to CDEC_IN)<\/td><\/tr>\n
      16<\/td>DEMOD_IN<\/td>Input<\/td>Demodulation input (from antenna via RC network)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Car Immobilizer:<\/strong> 1\u00b5A sleep current and 5V supply compatibility suit always-on key detection in vehicle security<\/li>\n
      • Handheld Readers:<\/strong> Integrated PLL and bridge drivers minimize external components; 6mA active current preserves battery<\/li>\n
      • Animal ID:<\/strong> Compatible with EM4200\/EM4305 animal transponder protocols at 134.2kHz (shifted)<\/li>\n
      • Access Control:<\/strong> Read\/write capability supports EM4450 and EM4305 for card personalization<\/li>\n
      • Low-Cost Readers:<\/strong> No external quartz and direct antenna drive reduce BOM to antenna, capacitors, and MCU<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        EM4095SO16B<\/td>EM Microelectronic<\/td>Same in SOIC-16 package<\/td>-<\/td>-<\/td><\/tr>\n
        U2270B<\/td>Microchip\/Atmel<\/td>Legacy 125kHz reader IC, fewer features<\/td>-<\/td>-<\/td><\/tr>\n
        RI-STU25A<\/td>TI<\/td>125kHz reader module (not bare IC)<\/td>-<\/td>-<\/td><\/tr>\n
        TMS3705A<\/td>TI<\/td>RFID transponder base station IC<\/td>-<\/td>-<\/td><\/tr>\n
        NCA1-125K<\/td>NXP<\/td>125kHz reader IC with integrated MCU<\/td>-<\/td>-<\/td><\/tr>\n<\/table>\n

        EM4095HMSO16B+ is a 125-134kHz RFID reader AFE from EM Microelectronic in SOIC-16. The EM4325 integrates reader + transponder functionality. The TMS3705A from TI provides 134.2kHz FDX-B reader with BPSK demodulation. The ATA5575 from Microchip offers 125kHz reader\/transponder with read\/write capability. For 13.56MHz HF RFID, MFRC522 from NXP provides ISO 14443 A\/B reader. The AS3935 from ams-OSRAM offers lightning detection rather than RFID but uses similar AFE architecture. The EM4095P16B+ provides the same in DIP-16 through-hole package.<\/p>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=7868"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/7868\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=7868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=7868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=7868"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7868"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}