IP4777CZ38

DVI and HDMI interface ESD protection, DDC buffering, hot plug control and backdrive protection


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The IP4777CZ38 is designed for HDMI transmitter host interface protection. The IP4777CZ38 includes DDC buffering and decoupling, hot plug detect, backdrive protection, CEC slew rate control, and high-level ESD protection diodes for the TMDS lines.

The DDC lines use a new buffering concept which decouples the internal capacitive load from the external capacitive load. This allows greater design flexibility of the DDC lines with respect to the maximum load of 50 pF specified in the HDMI 1.3 specification. This buffering also boosts the DDC signals, allowing the use of longer HDMI cables having a higher capacitive load than 700 pF. The CEC slew rate limiter prevents ringing on the CEC line. The internal hot plug detect module simplifies the application of the HDMI transmitter to control the hot plug signal.

The DDC, hot plug and CEC lines are backdrive protected to guarantee HDMI interface signals are not pulled down if the system is powered down or enters standby mode.

All TMDS intra-pairs are protected by a special diode configuration offering a low line capacitance of 0.7 pF only (to ground) and 0.05 pF between the TMDS pairs. These diodes provide protection to components downstream from ESD voltages of up to ±8 kV contact in accordance with the IEC 61000-4-2, level 4 standard.

Features and benefits

  • HDMI 1.3 compliant
  • Pb-free and RoHS compliant; Dark Green
  • Robust ESD protection without degradation after several ESD strikes
  • Low leakage even after several hundred ESD discharges
  • Very high diode switching speed (ns) and low line capacitance of 0.7 pF to ground and 0.05 pF between channel can ensure signal integrity
  • DDC capacitive decoupling between system side and HDMI connector side and buffering to drive cable with high capacitive load (> 700 pF)
  • Hot plug detect module
  • CEC ringing prevention by slew rate limiter
  • All TMDS lines with integrated rail-to-rail clamping diodes with downstream ESD protection of ±8 kV in accordance with IEC 61000-4-2, level 4 standard
  • Matched 0.5 mm trace spacing
  • Highest integration in a small footprint, PCB-level, optimized RF routing, 38-pin TSSOP lead-free package

Applications

  • The IP4777CZ38 can be used for a wide range of HDMI source devices, consumer and computing electronics e.g.:
    • SD and HD DVD player
    • Set-top box
    • PC graphic card
    • Game console
    • HDMI picture performance quality enhancer module
All information on this product information page is subject to the subsequent disclaimers:
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Parametrics of this product

Type numberPackagePackage nameNr of protected linesCd [typ] (pF)VESD IEC61000-4-2 (kV)ApplicationSize (mm)BufferLevel shifter
IP4777CZ38SOT510-1
(TSSOP38)		TSSOP38120.78HDMI transmitter signal conditioning9.7 x 4.4 x 1.1yy

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
IP4777CZ38IP4777CZ38,1189340 616 47118Volume productionSOT510-1
(TSSOP38) 		Reel Pack, SMD, 13"Standard Marking
IP4777CZ38/VIP4777CZ38/V,1189340 620 58118Volume productionSOT510-1
(TSSOP38) 		Reel Pack, SMD, 13"Standard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
IP4777CZ38IP4777CZ38,118IP4777CZ38Always Pb-free11
IP4777CZ38/VIP4777CZ38/V,118IP4777CZ38/VAlways Pb-free11
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Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
IP4777CZ389340 616 47118IP4777CZ38,118NADIGI-KEY CORPORATION5,4305/24/2012Buy online 
   NAFUTURE ELECTRONICS2,5005/23/2012Buy online 
   EUFUTURE ELECTRONICS UK2,5005/23/2012Buy online 
   ASIAFUTURE ELECTRONICS- ASIA2,5005/23/2012Buy online 
   NAAVNET EXPRESS2,2605/24/2012Buy online 
   EUFARNELL3265/24/2012Buy online 
   ASIAELEMENT14 APAC1065/24/2012Buy online 
   NANEWARK/ELEMENT14765/24/2012Buy online 
   JAPANCHIP ONE STOPyes05/14/2012Buy online 
IP4777CZ38/V9340 620 58118IP4777CZ38/V,118EUFARNELL3265/24/2012Buy online 
   ASIAELEMENT14 APAC1065/24/2012Buy online 
   NANEWARK/ELEMENT14765/24/2012Buy online 

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