MAX9277GTM/V+

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The MAX9277GTM/V+ are high-bandwidth, low-power serializers/deserializers and is designed for use in serializer-deserializer (SerDes) systems that require high levels of integration and performance such as consumer electronics, cellular base stations, and industrial systems. SerDes refers to an interface method that combines serialized data with transmit and receive paths within the interface. Its key feature includes high bandwidth (2.5Gbps), low power consumption, low EMI/ESD, low power control and programmable slew rate control.

Its application field include a wide range of products such as digital camera, DSL modems, 802.11a/b/g/n WLAN systems, networking systems, digital panel controllers and monitors, digital TV, and HDTV systems. The MAX9277GTM/V+ is capable of driving longer cables using its integrated forward error correction (FEC) feature. It also operates with 1.8V power supply, providing the ability to save power from the system.

The working principle of the MAX9277GTM/V+ is based on the concept of serializing and transmitting data using the SerDes technology. The system converts the parallel data from a controller device into two serial data streams that are combined at the transmitting end of the device. The two data streams are then combined together again at the receiving end to be identical to the original parallel data.

The MAX9277GTM/V+ implements a transmitter that can accept 8-bit parallel data with 3 ports (parallel data, phase Enable, and Reset). The phase enable port is used to control the phase counter of logic block and facilitate the parallel to serial conversion. After the data is converted, the output of the transmitter is passed through the PLL to achieve data synchronization. When the data reaches the receiver, the PLL again deserializes the data, and then passes it to the receiver logic block to get the 8-bit parallel data.

The data from the controller is synchronized with the aid of a phase error detector (PED) in the receiver logic block. The PED is used to detect any mismatch between local and received clock timing information, which is then used to adjust the phase of the internal reference clock to match the local clock frequency. In the MAX9277GTM/V+, the PED employs a lower power differential clock circuitry that minimizes the power consumption while maintaining a reliable operation.

The MAX9277GTM/V+ supports forward error correction (FEC) that enables the transmission of data over long cables without causing bit errors. The FEC detects and corrects errors in data transmission so that errors are not accumulated and data integrity is maintained. This increases the maximum distance that the data can be transmitted, up to 10-meters for 2.5Gbps data rate over shielded cables, without any error occurring.

The MAX9277GTM/V+ offers a low power control feature that enables the design of power-efficient systems. The low power control blocks the clock output on the receive side when no data transfer is taking place. This minimizes the power consumption on the receive side, while still maintaining the same data rate and effective data throughput.

The device also supports programmable slew rate control. The programmable slew rate control minimizes the effects of EMI/ESD on the data transmission by controlling the rate of change in signal edges. This reduces the energy leaked into the environment and helps the system achieve a high signal integrity.

The MAX9277GTM/V+ offers a reliable and low-power solution for transmission of data over longer cables with a wide range of applications in consumer electronics, cellular base stations, and industrial systems. Its integrated features, such as error correction, low power, programmable terms, and waveform control make it an ideal choice for a variety of applications.

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