The ADN8102 Rev. B is a quad bidirectional CX4 equalizer from Analog Devices that supports DC to 3.75 Gbps data. It features programmable input equalization with up to 22 dB boost, compensating up to 30 meters of CX4 cable and 40 inches of FR4. It also offers programmable output pre-emphasis/de-emphasis with up to 12 dB boost, compensating up to 15 meters of CX4 cable and 40 inches of FR4. The ADN8102 Rev. B operates from a flexible 1.8 V to 3.3 V core supply, supports per lane P/N pair inversion for routing ease, consumes low power of 125 mW/channel at up to 3.75 Gbps, and features DC- or ac-coupled differential CML inputs. It also offers programmable CML output levels, a 50 Ω on-chip termination, loss-of-signal detection, and a temperature range of -40°C to +85°C. The ADN8102 Rev. B supports 8b10b, scrambled, or uncoded NRZ data and features an I2C control interface. It is packaged in a 64-lead LFCSP (QFP) package.
The ADN8102 is a quad, bidirectional CX4 cable/backplane equalizer with programmable input equalization and output pre‑emphasis. It supports data rates up to 3.75 Gbps, compensates for up to 30 m of CX4 cable or 40 inches of FR4, and includes loss‑of‑signal detection and loopback for testing. The device is controlled via toggle pins, an I²C interface, or a combination of both, and operates from a 1.8 V to 3.3 V core supply.
The datasheet details electrical specifications, timing parameters, pin functions, and recommended PCB layout guidelines. It also lists absolute maximum ratings, ESD precautions, and typical performance characteristics for applications such as 10GBase‑CX4, InfiniBand, Fibre Channel, XAUI, and Gigabit Ethernet over backplane or cable.
| Maximum Data Rate per Channel (NRZ) | 3.75 Gbps |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Core Supply Voltage | 1.8 V to 3.3 V |
| Differential Output Swing | 800 mV p‑p |
| Power Consumption | 125 mW per channel (up to 3.75 Gbps) |
The ADN8102 supports up to 3.75 Gbps per channel for NRZ data.
It operates from –40 °C to +85 °C.
The device provides eight programmable equalization settings.
It runs from a 1.8 V to 3.3 V core supply.