Dual-Channel Subscriber Line Interface Circuit 2CH-A SLIC

California Triangle offers a complete external exchange station (FXS) dual-line telephone interface solution that complies with all relevant global standards. Compared to other competitors in the industry, the device is designed to use a capacitive boost tracking negative power supply, providing advantages of low power consumption, low cost, and small footprint. Self-testing and loop testing (MLT) are achieved through the built-in DSP, monitoring ADC, and test load, resulting in audio quality and DTMF (Dual Tone Multi Frequency) detection that surpass PSTN (Public Switched Telephone Network).

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Technical Specifications

Model	Number of Voice Channels	Host Interface	Speech Coding	Caller ID Display	Dialing Detection	Line Monitoring	Temperature Range	Maximum Voltage	Packaging
2CH-A SLIC	2	SPI/PCM	A-Law μ-Law Linear PCM	DTMF FSK	DTMF	Support	0~+70C	-100V	LGA47
2CH-B SLIC	2	SSI	A-Law μ-Law Linear PCM	DTMF FSK	DTMF	Support	0~+70C	-100V	QFN48