品牌索引
产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 HC55121
Ultra Low Active Power (OHT) < 60mW • Single/Dual Battery Operation • Automatic Silent Battery Selection • Power Management/Shutdown • Battery Tracking Anti Clipping • Single 5V Supply with 3V Compatible Logic • Zero Crossing Ring Control - Zero Voltage On/Zero Current Off • Tip/Ring Disconnect • Pulse Metering Capability • 4 Wire Loopback • Programmable Current Feed • Programmable Resistive Feed • Programmable Loop Detect Threshold • Programmable On-Hook and Off-Hook Overheads • Programmable Overhead for Pulse Metering • Programmable Polarity Reversal Time • Selectable Transmit Gain 0dB/-6dB • 2 Wire Impedance Set by Single Network • Loop and Ground Key Detectors • On-Hook Transmission • Common Pinout • Pb-Free Plus Anneal Available (RoHS Compliant) • HC55121 - Polarity Reversal • HC55130 - -63dB Longitudinal Balance • HC55140 - Polarity Reversal - Ground Start - Line Voltage Measurement - 2 Wire Loopback - -63dB Longitudinal Balance • HC55142 - Polarity Reversal - Ground Start - Line Voltage Measurement - 2.2VRMS Pulse Metering - 2 Wire Loopback • HC55150 - Polarity Reversal - Line Voltage Measurement - 2.2VRMS Pulse Metering - 2 Wire Loopback |
