MAX4397 Datasheet | Maxim Integrated

Description The MAX4397 dual SCART switch matrix routes audio and video signals between an MPEG encoder and two external SCART connectors under I 2C- control, and meets the requirements of EN50049-1, IEC 933-1, Canal+, and Bsky B standards. - Video Outputs Drive 2VP-P into 150Ω - Audio Outputs Drive 3VRMS into 10kΩ - Clickless, Popless Audio Gain Control and Switching Features The video and audio channels feature input source - AC-Coupled Video Inputs with Internal Clamp and selection multiplexers, input buffers, and output buffers Bias for routing all inputs to selected outputs. The MAX4397D audio encoder input is differential DC-coupled, while the - DC-Coupled Video Outputs MAX4397S audio encoder input is single-ended AC- posite Video Signal Created Internally from coupled. Except for the MAX4397D’s audio encoder Y/C Inputs input, all other inputs and outputs are AC-coupled with internal DC-biasing set to predefined levels. - Internal Video Reconstruction Filters Provide The MAX4397 provides programmable gain control from -35d B at 27MHz +5d B to +7d B in 1d B steps for Red, Green, and Blue - Differential (MAX4397D) or Single-Ended ponent video signals. All other video outputs have a (MAX4397S) Audio Encoder Input fixed +6d B gain. Additional features include an internal Luma and Chroma (Y/C) mixer that generates a - Red/Chroma Switch for Bidirectional I/O posite video signal (CVBS) to supply an RF - I2C-Programmable RGB Gain from +5d B to +7d B modulator output, and internal video reconstruction lowpass filters with a cutoff frequency of 6MHz. The - I2C-Programmable Audio Gain Control from +6d B MAX4397 TV audio channel features clickless switching to -56d B . and programmable volume control from -56d B to +6d B in - Meets EN50049-1, IEC 933-1, Canal+, and BSky B 2d B steps. The VCR audio output also has programmable Requirements gain for -6d B, 0d B, or +6d B. The device also generates monaural audio from left and right stereo inputs. All audio drivers deliver a...