AD8197B is a 4:1 HDMI/DVI switch released by Analog Devices. It supports HDMI 1.3 standard and has 4 inputs, 1 output. It can support data rates of 250Mbps to 2.25Gbps and pixel clocks of 25MHz to 225MHz. The switch also features equalized inputs, fully buffered unidirectional inputs/outputs, switchable 50Ω on-chip terminations, switchable output 50Ω on-chip terminations, pre-emphasized outputs, low added jitter, single-supply operation (3.3V), 4 auxiliary channels, bidirectional unbuffered inputs/outputs, flexible supply operation (3.3V to 5V), HDCP standard compatible, allows switching of DDC bus and 2 additional signals, output disable feature, reduced power dissipation, and removable output termination.
The AD8197B is a 4‑input, 1‑output HDMI/DVI switch featuring equalized TMDS inputs and pre‑emphasized outputs, supporting data rates up to 2.25 Gbps and single‑supply operation at 3.3 V. It includes on‑chip termination control, HDCP compatibility, and auxiliary channels for DDC and other signals.
The handbook contains feature tables, application examples, functional block diagrams, detailed pin‑out and function descriptions, electrical specifications, thermal data, PCB layout guidelines, and programming information for both serial and parallel control interfaces.
| Maximum Data Rate per Channel | 2.25 Gbps |
|---|---|
| Input Voltage Swing Differential | 150‑1200 mV |
| Output High Voltage Level | AVCC‑10 mV to AVCC+10 mV |
| Supply Voltage | 3.3 V (single‑supply) |
| Quiescent Current (outputs disabled) | 30‑44 mA |
| Operating Temperature Range | -40 °C to +85 °C |
The AD8197B supports up to 2.25 Gbps per channel.
It provides four inputs and one output HDMI/DVI link.
The device operates from –40 °C to +85 °C.
The AD8197B operates from a single 3.3 V supply.