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Si4438 データシート(PDF) 1 Page - Silicon Laboratories |
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Si4438 データシート(HTML) 1 Page - Silicon Laboratories |
1 / 44 page Rev 1.0 Copyright © 2014 by Silicon Laboratories Si4438-C Si4438-C HIGH-PERFORMANCE, LOW-CURRENT TRANSCEIVER Features Applications Description Silicon Laboratories' Si4438 is a high-performance, low-current transceivers covering the sub-GHz frequency bands from 425 to 525 MHz. The Si4438 is targeted at the Chinese smart meter market and is especially suited for electric meters. This device is footprint- and pin-compatible with the Si446x radios, which provide industry-leading performance for worldwide sub-GHz applications. The radios are part of the EZRadioPRO® family, which includes a complete line of transmitters, receivers, and transceivers covering a wide range of applications. All parts offer outstanding sensitivity of –124 dBm while achieving extremely low active and standby current consumption. The 58 dB adjacent channel selectivity with 12.5 kHz channel spacing ensures robust receive operation in harsh RF conditions. The Si4438 offers exceptional output power of up to +20 dBm with outstanding TX efficiency. The high output power and sensitivity results in an industry-leading link budget of 144 dB allowing extended ranges and highly robust communication links. Frequency range = 425–525 MHz Receive sensitivity = –124 dBm Modulation (G)FSK OOK Max output power +20 dBm Low active power consumption 14 mA RX Ultra low current powerdown modes 30 nA shutdown, 40 nA standby Data rate = 100 bps to 500 kbps Preamble Sense Mode 6 mA average Rx current at 1.2 kbps Fast wake and hop times Power supply = 1.8 to 3.8 V Excellent selectivity performance 58 dB adjacent channel 75 dB blocking at 1 MHz Antenna diversity and T/R switch control Highly configurable packet handler TX and RX 64 byte FIFOs Auto frequency control (AFC) Automatic gain control (AGC) Low BOM Low battery detector Temperature sensor 20-Pin QFN package IEEE 802.15.4g ready Suitable for China regulatory (State Grid) China smart meters Patents pending Pin Assignments |
同様の部品番号 - Si4438 |
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同様の説明 - Si4438 |
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