TS3DV421 Series
3.8-Gbps 4-channel differential 8-to-16 and 16-to-8 mux for DVI 1.0/HDMI 1.3 applications
Manufacturer: Texas Instruments
Catalog
3.8-Gbps 4-channel differential 8-to-16 and 16-to-8 mux for DVI 1.0/HDMI 1.3 applications
Key Features
• Compatible With HDMI v1.3 DVI 1.0 High-Speed Digital InterfaceWide Bandwidth of Over 3.8 GbpsSerial Data Stream at 10× Pixel Clock RateSupports All Video Formats up to 1080p and SXGA (1280 × 1024 at 75 Hz)High Bandwidth of 4.95 Gbps (Single Link)HDCP CompatibleLow Crosstalk(XTALK= –50 dB Typ at 1.65 Gbps)Off Isolation (OIRR= –50 dB Typ at 1.65 Gbps)Low Bit-to-Bit Skew (tsk(o)= 0.1 ns Max)Low and Flat ON-State Resistance(rON= 12.5Max, rON(flat)= 0.5Typ)Low Input/Output Capacitance(CON= 4.5 pF Max)Enables Application-Specific Operating Voltage SelectionVDDOperating Range From 1.5 V to 2.1 V When VSS= GNDVDDOperating Range From 3.0 V to 3.6 V When VSS= 1.5 VIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model(A114-B, Class II)1000-V Charged-Device Model (C101)For DisplayPort Applications:VDD= 1.8 V , VSS= GNDFor HDMI/DVI Applications:VDD= 3.3 V , VSS= 1.5 VAPPLICATIONSDVI/HDMI Signal SwitchingDifferential DVI, HDMI Signal Multiplexing for Audio/Video Receiversand High-Definition Televisions (HDTVs)All other trademarks are the property of their respective owners.Compatible With HDMI v1.3 DVI 1.0 High-Speed Digital InterfaceWide Bandwidth of Over 3.8 GbpsSerial Data Stream at 10× Pixel Clock RateSupports All Video Formats up to 1080p and SXGA (1280 × 1024 at 75 Hz)High Bandwidth of 4.95 Gbps (Single Link)HDCP CompatibleLow Crosstalk(XTALK= –50 dB Typ at 1.65 Gbps)Off Isolation (OIRR= –50 dB Typ at 1.65 Gbps)Low Bit-to-Bit Skew (tsk(o)= 0.1 ns Max)Low and Flat ON-State Resistance(rON= 12.5Max, rON(flat)= 0.5Typ)Low Input/Output Capacitance(CON= 4.5 pF Max)Enables Application-Specific Operating Voltage SelectionVDDOperating Range From 1.5 V to 2.1 V When VSS= GNDVDDOperating Range From 3.0 V to 3.6 V When VSS= 1.5 VIoffSupports Partial-Power-Down Mode OperationLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Performance Tested Per JESD 222000-V Human-Body Model(A114-B, Class II)1000-V Charged-Device Model (C101)For DisplayPort Applications:VDD= 1.8 V , VSS= GNDFor HDMI/DVI Applications:VDD= 3.3 V , VSS= 1.5 VAPPLICATIONSDVI/HDMI Signal SwitchingDifferential DVI, HDMI Signal Multiplexing for Audio/Video Receiversand High-Definition Televisions (HDTVs)All other trademarks are the property of their respective owners.
Description
AI
The TS3DV421 is a 4-channel differential 2:1 multiplexer/demultiplexer digital video switch controlled with one select input (SEL). SEL controls the data path of the multiplexer/demultiplexer and can be connected to any GPIO in the system, using an external voltage divider system. The device provides high bandwidth necessary for DVI and HDMI applications. This device expands the high-speed physical link interface from a single HDMI port to two HDMI ports (A or B port). The unselected channel is set to a high-impedance state.
The most common application for the TS3DV421 is in the sink application. In this case, there are two sources (i.e., DVD, set-top box, or game console) that must be routed to one HDMI receiver. The TS3DV421 can route the signals where one HDMI receiver (in a DLP, LCD TV, PDP, or other high-definition display) can be expanded to three ports.
The HDMI application calls for a 100-differential impedance between the differential lines (TMDSn+ and TMDSn–). Additionally, because the TS3DV421 is a high-bandwidth, low-rONpass transistor-type switch, a properly designed board retains a 100-differential impedance through the switch. The unselected port is in the high-impedance mode, such that the receiver receives information from only one source. HDCP encryption is passed through the switch for the HDMI receiver to decode.
The TS3DV421 is a 4-channel differential 2:1 multiplexer/demultiplexer digital video switch controlled with one select input (SEL). SEL controls the data path of the multiplexer/demultiplexer and can be connected to any GPIO in the system, using an external voltage divider system. The device provides high bandwidth necessary for DVI and HDMI applications. This device expands the high-speed physical link interface from a single HDMI port to two HDMI ports (A or B port). The unselected channel is set to a high-impedance state.
The most common application for the TS3DV421 is in the sink application. In this case, there are two sources (i.e., DVD, set-top box, or game console) that must be routed to one HDMI receiver. The TS3DV421 can route the signals where one HDMI receiver (in a DLP, LCD TV, PDP, or other high-definition display) can be expanded to three ports.
The HDMI application calls for a 100-differential impedance between the differential lines (TMDSn+ and TMDSn–). Additionally, because the TS3DV421 is a high-bandwidth, low-rONpass transistor-type switch, a properly designed board retains a 100-differential impedance through the switch. The unselected port is in the high-impedance mode, such that the receiver receives information from only one source. HDCP encryption is passed through the switch for the HDMI receiver to decode.
