IP4776CZ38_11 Datasheet, PDF (1/15 Pages) NXP Semiconductors – Fully integrated HDMI interface with level shifter, ESD and backdrive protection

IP4776CZ38
Fully integrated HDMI interface with level shifter, ESD and
backdrive protection
Rev. 6 — 7 January 2011
Product data sheet
1. General description
The IP4776CZ38 is designed for HDMI host-interface protection. The IP4776CZ38
includes level shifting for the DDC channels and backdrive protection for HDMI as well as
high-level ESD protection diodes for the TMDS signal lines.
The level shifting function is required when the receiver operates at a supply voltage lower
than the external devices to protect the I/Os against overvoltages. The IP4776CZ38
contains four N-channel MOSFETs to provide this level shifting function.
Furthermore, all TMDS intra-pairs are protected by a special diode configuration offering
an ultra low line capacitance of 0.7 pF only. These diodes provide protection to
downstream components from ESD voltages up to ±8 kV contact according to the
IEC 61000-4-2, level 4 standard.
2. Features and benefits
„ Pb-free and RoHS compliant, Dark Green
„ Integrated high-level ESD protection, level shifting and backdrive protection
„ All TMDS lines with integrated rail-to-rail clamping diodes with downstream
ESD protection of ±8 kV according to IEC 61000-4-2, level 4 standard
„ Matched 0.5 mm trace spacing
„ Bidirectional level shifting N-channel FETs provided for DDC clock and data channels
„ TMDS lines with ≤ 0.05 pF matching of capacitance between the TMDS pairs
„ Ultra low line capacitance of 0.7 pF per channel
„ HDMI 1.3 compliant
„ Backdrive protection
„ 38-pin TSSOP lead-free package
3. Applications
„ The IP4776CZ38 is designed for HDMI receiver and transmitter port protection, level
shifting and backdrive protection e.g.:
‹ TV
‹ Graphics card
‹ Set-top box
‹ DVD
‹ Digital media adapter
‹ Game console