MIKROE-2864

MIKROE-2864 Datasheet

PID MIKROE-2864

Part	Datasheet
MIKROE-2864	MIKROE-2864 (pdf)

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RS232 Isolator click PID MIKROE-2864 Weight 35 g RS232 Isolator click is a fully isolated dual transceiver click, used to provide secure and easy UART to RS232 conversion, with the galvanic isolation. The digital input and output signals are transmitted across the isolation barrier by utilizing the Analog Devices proprietary technology - IC scale transformer windings couple the digital signals magnetically, from one side of the barrier to the other, providing the galvanic isolation and transfer rates up to 460Kbps. RS232 Isolator click can be used for galvanic isolation of RS232 signals, whenever there is a need for that kind of isolation - operating in harsh environments where electrostatic discharges ESD can occur, when the RS232 cable is plugged in and out frequently, and generally - wherever the sensitive part of the RS232 controller logic circuitry needs to be protected. How does it work? The logic voltage levels used by the RS232 can go up to ±15V with respect to the common ground. This is very different than the CMOS/TTL voltage levels used on many MCUs and other types of commonly used modern devices, so the first task of the RS232 isolator board is to provide appropriate RS232/TTL levels. The main active component of the RS232 Isolator click is the ADM3252E, an integrated dual channel RS232 driver/receiver, with the isolation technology, made by Analog Devices. This integrated circuit features four integrated galvanic isolation elements that provide the required isolation level. RS232 level inputs are inverted and encoded into waveforms that are used to energize the primary windings of the integrated transformers. At the secondary windings, the induced waveforms are decoded back into the digital values and routed to the pins, with the appropriate TTL/CMOS voltage levels. The same working principle is applied in the opposite direction, too. his way, the digital signals are effectively conducted through the isolation barrier. Besides the UART RX and TX lines, the click also supports the hardware flow control via the CTS and RTS lines. One of the two existing channels is used for the UART data communication itself, while the other channel is used for the hardware flow control lines. The usage of the control lines is not always mandatory, so the lines can be disconnected from the mikroBUS if needed, by unsoldering the SMD jumpers labeled as J1 and J2. The ADM3252E IC also features the isoPower technology - an integrated DC-DC converter for generating all the required voltage levels, making it possible to power the click board by 3.3V or 5V. The operating voltage for the click board can be set with the onboard SMD jumper. RS232 Isolator click features the onboard D-Sub 9 DE9 connector for an easy and secure connection. Specifications Type RS232 For applications which operate in harsh, industrial environments, when the RS23 cable is plugged in and out frequently. It can be used whenever the sensitive control circuitry needs to be isolated from the RS232 line levels. On-board modules ADM3252E, an isolated, dual channel, RS-232 line driver/receiver from Analog Devices Key Features High voltage galvanic isolation of RS232 lines, high speed communication, up to 460 Kbps, D-Sub connector for easy connection Interface GPIO,UART Input Voltage 3.3V or 5V Click board size L x mm Pinout diagram This table shows how the pinout on RS232 Isolator click corresponds to the pinout on the mikroBUS socket the latter shown in the two middle columns . Notes Notes Request to Send Clear to Send CTS Transmit Data Receive Data MISO MOSI Power Supply +3.3V 7 3.3V Power Supply Ground GND 8 Ground RS232 Isolator click electrical specifications

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RS232 Isolator click

PID MIKROE-2864

Weight 35 g

RS232 Isolator click is a fully isolated dual transceiver click, used to provide secure and easy UART to RS232 conversion, with the galvanic isolation. The digital input and output signals are transmitted across the isolation barrier by utilizing the Analog Devices proprietary technology - IC scale transformer windings couple the digital signals magnetically, from one side of the barrier to the other, providing the galvanic isolation and transfer rates up to 460Kbps.

RS232 Isolator click can be used for galvanic isolation of RS232 signals, whenever there is a need for that kind of isolation - operating in harsh environments where electrostatic discharges ESD can occur, when the RS232 cable is plugged in and out frequently, and generally - wherever the sensitive part of the RS232 controller logic circuitry needs to be protected.

How does it work?

The logic voltage levels used by the RS232 can go up to ±15V with respect to the common ground. This is very different than the CMOS/TTL voltage levels used on many MCUs and other types of commonly used modern devices, so the first task of the RS232 isolator board is to provide appropriate RS232/TTL levels.

The main active component of the RS232 Isolator click is the ADM3252E, an integrated dual channel RS232 driver/receiver, with the isolation technology, made by Analog Devices. This integrated circuit features four integrated galvanic isolation elements that provide the required isolation level. RS232 level inputs are inverted and encoded into waveforms that are used to energize the primary windings of the integrated transformers. At the secondary windings, the induced waveforms are decoded back into the digital values and routed to the pins, with the appropriate TTL/CMOS voltage levels. The same working principle is applied in the opposite direction, too. his way, the digital signals are effectively conducted through the isolation barrier.

Besides the UART RX and TX lines, the click also supports the hardware flow control via the CTS and RTS lines. One of the two existing channels is used for the UART data communication itself, while the other channel is used for the hardware flow control lines. The usage of the control lines is not always mandatory, so the lines can be disconnected from the mikroBUS if needed, by unsoldering the SMD jumpers labeled as J1 and J2.

The ADM3252E IC also features the isoPower technology - an integrated DC-DC converter for generating all the required voltage levels, making it possible to power the click board by 3.3V or 5V. The operating voltage for the click board can be set with the onboard SMD jumper.

RS232 Isolator click features the onboard D-Sub 9 DE9 connector for an easy and secure connection.

Specifications

Type

RS232

For applications which operate in harsh, industrial environments, when the RS23 cable is plugged in and out frequently. It can be used whenever the sensitive control circuitry needs to be isolated from the RS232 line levels.

On-board modules

ADM3252E, an isolated, dual channel, RS-232 line driver/receiver from Analog Devices

Key Features

High voltage galvanic isolation of RS232 lines, high speed communication, up to 460 Kbps, D-Sub connector for easy connection

Interface

GPIO,UART

Input Voltage 3.3V or 5V

Click board size

L x mm

Pinout diagram

This table shows how the pinout on RS232 Isolator click corresponds to the pinout on the mikroBUS socket the latter shown in the two middle columns .

Notes

Notes

Request to Send

Clear to Send CTS

Transmit Data

Receive Data

MISO

MOSI

Power Supply +3.3V 7
3.3V

Power Supply

Ground

GND 8

Ground

RS232 Isolator click electrical specifications

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Datasheet ID: MIKROE-2864 649463