The EC301v02 is a DCP signaling chip with fault detection for field telephone systems, supporting multiple modes and low‑power sleep.
The EC301v02 chip provides DCP signaling functions and fault detection for field telephone applications. It supports DCP, magnetic‑loop (LB), common‑bus (CB) modes and an automatic sleep mode to reduce power consumption. Fault detection can locate line faults up to 10 km away with about 500 m accuracy.
The device communicates with a host MCU via a synchronous serial interface (STE, SCLK, SD, IRQ). It is implemented in a 20‑pin plastic dual‑in‑line package, with detailed electrical characteristics such as 4 mA static current, 1 µA sleep current, and a supply range of 2.8‑5.5 V. This manual is written in Chinese.
| Supply voltage (VDD) | 2.8 V – 5.5 V |
|---|---|
| Operating temperature (TA) | -40 °C to +85 °C |
| Fault detection range | 10 km (≈500 m accuracy) |
The chip can detect line faults up to 10 km away with an accuracy of about 500 m.
It supports four modes: common‑bus (CB), magnetic‑loop (LB), DCP, and sleep.
Communication is done via a synchronous serial port using the STE, SCLK, SD, and IRQ signals.