IP4788CZ32 Datasheet PDF - NXP Semiconductors
| Part Number | IP4788CZ32 | |
| Description | DVI and HDMI interface ESD and overcurrent protection | |
| Manufacturers | NXP Semiconductors | |
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There is a preview and IP4788CZ32 download ( pdf file ) link at the bottom of this page. Total 30 Pages | ||
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IP4788CZ32
DVI and HDMI interface ESD and overcurrent protection,
DDC/CEC buffering, hot plug detect and backdrive protection
Rev. 2 — 24 November 2014
Product data sheet
1. Product profile
1.1 General description
The IP4788CZ32 is designed to protect High-Definition Multimedia Interface (HDMI)
transmitter host interfaces. It includes HDMI 5 V overcurrent / overvoltage protection,
Display Data Channel (DDC) buffering and decoupling, hot plug detect, backdrive
protection, Consumer Electronic Control (CEC) buffering and decoupling, and 14 kV
contact ElectroStatic Discharge (ESD) protection for all external I/Os, far exceeding the
IEC 61000-4-2, level 4 standard.
The IP4788CZ32 incorporates Transmission Line Clamping (TLC) technology on the
high-speed Transition Minimized Differential Signaling (TMDS) lines to simplify routing
and help reducing impedance discontinuities. All TMDS lines are protected by an
impedance-matched diode configuration that minimizes impedance discontinuities caused
by typical shunt diodes.
The enhanced 60 mA overcurrent / overvoltage linear regulator guarantees
HDMI-compliant 5 V output voltage levels with up to 6.5 V inputs.
The DDC lines use a new buffering concept which decouples the internal capacitive load
from the external capacitive load for use with standard Complementary Metal Oxide
Semiconductor (CMOS) or Low Voltage Transistor-Transistor Logic (LVTTL) I/O cells
down to 1.8 V. This buffering also redrives the DDC and CEC signals, allowing the use of
longer or cheaper HDMI cables with a higher capacitance. The internal hot plug detect
module simplifies the application of the HDMI transmitter to control the hot plug signal.
All lines provide appropriate integrated pull-ups and pull-downs for HDMI compliance and
backdrive protection to guarantee that HDMI interface signals are not pulled down when
the system is powered down or enters Standby mode. Only a single external capacitor is
required for operation.
1.2 Features and benefits
HDMI 2.0 and all backward compatible standards are supported
6.0 Gbps TMDS Bit Rate (600 Mcsc TMDS Character Rate) compatible
Supports Ultra High-Definition (UHD) 4K (2160p) 60 Hz display modes
Impedance matched 100 differential transmission line ESD protection for
TMDS lines (10 ). No Printed-Circuit Board (PCB) pre-compensation required
Simplified flow-through routing utilizing less overall PCB space
DDC capacitive decoupling between system side and HDMI connector side and
buffering to drive cable with high capacitive load (> 700 pF/25 m)
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NXP Semiconductors
4. Functional diagram
IP4788CZ32
DVI and HDMI interface ESD and overcurrent protection
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IP4788CZ32
IP4788CZ32
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 24 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ IP4788CZ32.PDF Datasheet ] | |
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