AD8197A Datasheet | Analog Devices

FEATURES 4 inputs, 1 output HDMI/DVI link Enables HDMI 1.3-pliant receiver Pin-to-pin patible with the AD8191A 4 TMDS channels per link Supports 250 Mbps to 2.25 Gbps data rates Supports 25 MHz to 225 MHz pixel clocks Equalized inputs for operation with long HDMI cables .. (20 meters at 2.25 Gbps) Fully buffered unidirectional inputs/outputs Globally switchable, 50 Ω on-chip terminations Pre-emphasized outputs Low added jitter Single-supply operation (3.3 V) 4 auxiliary channels per link Bidirectional unbuffered inputs/outputs Flexible supply operation (3.3 V to 5 V) HDCP standard patible Allows switching of DDC bus and 2 additional signals Output disable feature Reduced power dissipation Removable output termination Allows building of larger arrays 2 AD8197A devices support HDMI/DVI dual-link Standards patible: HDMI receiver, HDCP, DVI Serial (I2C slave) and parallel control interface 100-lead, 14 mm × 14 mm LQFP, Pb-free package FUNCTIONAL BLOCK DIAGRAM PP_CH[1:0] PP_OTO PP_OCL PP_EQ PP_EN PP_PRE[1:0] RESET PARALLEL SERIAL I2C_SDA I2C_SCL I2C_ADDR[2:0] VTTI CONTROL LOGIC AVCC DVCC AMUXVCC AVEE DVEE VTTO CONFIG INTERFACE + IP_A[3:0] IN_A[3:0] - + IP_B[3:0] 4 4 4 4 4 4 4 4 4 4 IN_B[3:0] - + IP_C[3:0] IN_C[3:0] - + IP_D[3:0] IN_D[3:0] - SWITCH CORE EQ + OP[3:0] - ON[3:0] HIGH SPEED VTTI AUX_A[3:0] AUX_B[3:0] AUX_C[3:0] AUX_D[3:0] BUFFERED 4 4 4 4 SWITCH CORE LOW SPEED UNBUFFERED AUX_[3:0] BIDIRECTIONAL Figure 1. TYPICAL APPLICATION MEDIA CENTER HDTV SET HDMI RECEIVER SET-TOP BOX DVD PLAYER 04:20 GAME CONSOLE APPLICATIONS Multiple input displays Projectors A/V receivers Set-top boxes Advanced television (HDTV) sets Figure 2. Typical HDTV Application GENERAL DESCRIPTION The AD8197A is an HDMI™/DVI switch featuring equalized TMDS® inputs and pre-emphasized TMDS outputs, ideal for systems with long cable runs. Outputs can be set to a high impedance state to reduce the power dissipation and/or to allow the construction of...