SI3056-KS Datasheet(数据表) 86 Page - Silicon Laboratories

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zoom inzoom out 86 pageSi3056Si3018/19/1086Rev. 1.058. Pin Descriptions: Si3018/19/10Table 25. Si3018/19/10 Pin DescriptionsPin #Pin NameDescription1QETransistor Emitter.Connects to the emitter of Q3.2DCTDC Termination.Provides dc termination to the telephone network.3RXReceive Input.Serves as the receive side input from the telephone network.4IBIsolation Capacitor 1B.Connects to one side of isolation capacitor C1. Used to communicate with the system-side device.5C1BInternal Bias.Provides internal bias.6C2BIsolation Capacitor 2B.Connects to one side of the isolation capacitor C2. Used to communicate with thesystem-side device.7VREGVoltage Regulator.Connects to an external capacitor to provide bypassing for an internal power supply.8RNG1Ring 1.Connects through a resistor to the RING lead of the telephone line. Provides the ringand caller ID signals to the system-side device.9RNG2Ring 2.Connects through a resistor to the TIP lead of the telephone line. Provides the ringand caller ID signals to the system-side device.10VREG2Voltage Regulator 2.Connects to an external capacitor to provide bypassing for an internal power supply.11SCCircuit Enable.Enables transistor network. Should be tied through a 0Ω resistor to IGND.12QE2Transistor Emitter 2.Connects to the emitter of transistor Q4.12345678910111213161514QEDCTRXIBC1BC2BVREGRNG1DCT2IGNDDCT3QBQE2SCVREG2RNG2