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TMDS442PNPR ,4-to-2 DVI/HDMI Switch 128-HTQFP 0 to 70BLOCK DIAGRAMA14B14QuadA13B13 TerminatedA12 TMDS RxB12 with EQA11B11Y14A24Z14B24Y13A23 QuadZ13B23 T ..
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TP3051J ,7 V, parallel interface CODEC/filter COMBOPin Description
Symbol Function
V33 Negative power supply pin. VBB = -5V : 5%.
GNDA Analog ..
TP3054A , MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
TMDS442-TMDS442PNP-TMDS442PNPR
4-to-2 DVI/HDMI Switch 128-HTQFP 0 to 70
1FEATURES
APPLICATIONS
DESCRIPTIONSTB
TMDS442SLLS757A–AUGUST 2006–REVISED MARCH 2007
www.ti.com
4-TO-2 DVI/HDMI SWITCHI2C Repeater Isolates Bus Capacitanceat Both
Ends A 4-to-2 Single-Linkor 2-to-1 Dual-Link
DVI/HDMI Physical •
TMDS Inputs HBM ESD Protection Exceeds6•
Compatible with HDMI 3.3-V Supply Operation•
Supports 2.25 Gbps for 480i/p,
720i/p, and 1080i/p upto 12-Bit •
128-Pin TQFP Package
Color Depth •
ROHS Compatible and 260°C Reflow Rated Integrated Receiver 8-dB Receiver Equalizer for Digital TVLosses From Standard Digital Projector•
Selectable Output De-Emphasis Compensates Audio Video Receiverfor Losses From Flat DVIor HDMI Switch•
High-Impedance Outputs DisabledThe TMDS442, 4-to-2 switch, allows upto4 digital video interface (DVI) or high-definition
multimedia interface (HDMI) be switchedto two independent display blocks. The essential requirement picture-in-picture display audiovisual sourcesis having two individual DVIor HDMI receiversin digital display system. supports two DVIor HDMI receiversto enable multiple-source selection
(picture-in-picture),as well actingasa 4-input 1-output video switch.
Each inputor output port contains one 5-V power indicator (5V_PWR), one hot plug detector (HPD),a pairofI2C
interface signals (SCL/SDA), and four TMDS channels supporting data rates upto 2.25 Gbps. The 5-V power
indicator and the hot plug detector are pulled down with internal resistors, forcinga low state on these pins until
receivinga valid high signal. TheI2C interfaceis constructedby anI2C repeater circuitto isolate the capacitance resistors pulled upto VCC, which cooperatesto each TMDS receiveror HDMI compliant cables.
