SN74ALVCH32245KR

Series:	74ALVCH
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Transceiver, Non-Inverting
Number of Elements:	4
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	24mA, 24mA
Voltage - Supply:	1.65 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	96-LFBGA
Supplier Device Package:	96-LFBGA (13.5x5.5)
Base Part Number:	74ALVCH32245

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Introduction

The SN74ALVCH32245KR is a high-performance, quad data-rate (DDR) transmitter-receiver logic device with differential signaling. It is a member of the Texas Instruments SN74ALVCH family and is designed to provide superior electromagnetic compatibility (EMC) and reduce power and system cost. The SN74ALVCH32245KR is designed to transmit and receive high-speed data and control signals on up to four channels, enabling a lower-cost, higher-speed data and control path for communications and networking applications.

Application Fields

The SN74ALVCH32245KR is suitable for applications such as digital video, storage, and networking applications where small-form-factor, high-speed data transmission is required. For digital video applications, the SN74ALVCH32245KR has an integrated DC-coupled differential receiver that allows it to accurately reconstruct digital video signals. It is also ideal for data rates up to 8 Gb/s. The device is also capable of providing optical link protection, allowing it to be used in high-reliability, automotive, and other industrial applications.

Working Principle

The SN74ALVCH32245KR is a quad data-rate (DDR) logic device that operates in accordance with standard DDR logic protocols. The device includes four channels, each of which has an independent transmitter and receiver block. Each transmitter block on the device is composed of a differential pair of buffer amplifiers and a phase-locked loop (PLL). The transmitter PLLs are designed to generate a single clock signal from the four input data channels.The output from the PLLs is sent to the transmitter block, where it is amplified and transformed into differential outputs for data transmission. The outputs are typically sent to a differential termination network and then connected to the receivers on the device. The receivers on the device decode the incoming data, perform error checking, and may be used to control or drive the output of the device.

Conclusion

The SN74ALVCH32245KR from Texas Instruments is a high-performance, quad data-rate transmitter-receiver logic device with differential signaling which is suitable for digital video, storage, and networking applications. Its integrated DC-coupled differential receiver allows it to accurately reconstruct digital video signals, while its transmitter and receiver blocks enable it to provide optical link protection. Its four input channels and phase-locked loops allow it to generate a single clock signal and thus provide superior electromagnetic compatibility and reduce power and system cost.

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