ST-PLC-AFE datasheet(10/58 Pages) STMICROELECTRONICS

部件名	ST-PLC-AFE

功能描述	Power-line communication, analog front-end

PDF	58 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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10 / 58 page

General description

ST-PLC-AFE

10/58

DocID028727 Rev 1

Figure 4. Tx chain with different coupling capacitor

If using CENELEC band A, it is recommended to use a 2.2 nF capacitor. For CENELEC

bands B, C, and D, a 1 nF can be used.

2.1.2

Power amplifier power management

When the transmitter is not in use, the outputs can be disabled and placed into a high-

impedance state. This is achieved by setting the PA_EN bit in the Enable register to 0. A

description of energy consumption following sub-block activation through the internal

registers is given in Section 10.7: ST-PLC-AFE consumption (no load).

The PA integrates a current limiter that is programmable by an internal register thanks to the

SPI communication. The current limit is set by the CL bits in the Gain register. Four limits are

available: 0.5 A, 1 A, 1.5 A, and 2.1 A. See Section 9.3.1: Overcurrent condition for

overcurrent protection.

ST-PLC-AFE 数据表(PDF) 10 Page - STMicroelectronics