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| Conductive Type: | Bipolar Integrated Circuit |
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SD2057 : UART QFN-24-EP(4x4) Interface - Specialized ROHS
Mfr. Part#: SD2057
Datasheet: 
(e-mail or chat us for PDF file)
ROHS Status:
Quality: 100% Original
Warranty: ONE YEAR
| Package | QFN-24-EP(4x4) |
| Operating Temperature | -55ºC~+125ºC |
| Voltage - Supply | 2.7V~5.5V |
| Interface | UART |
The SD2057 is a CMOS single chip modem IC used in Highway Addressable Remote Transducer (HART) field instruments and masters. This IC integrates all necessary filtering, signal detection, modulating, demodulating, and HART signal wave shaping functions. Thus it requires few external passive components to satisfy the HART physical layer requirements. The SD2057 uses phase continuous Frequency Shift Keying (FSK) at 1200 bps, and operates in half duplex mode per HART protocol. The maximum supply current consumption in transmit mode is 112μA while using 3.6864MHz external Clock source input and 5.5V power supply. Required board space is very small because of the 4mm x 4mm QFN package and very few external components needed, making it ideal for line-powered applications in both master and slave configurations.
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