IP4777CZ38,118 NXP Semiconductors, IP4777CZ38,118 Datasheet

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IP4777CZ38,118

Manufacturer Part Number
IP4777CZ38,118
Description
IC INTERFACE HDMI 38-TSSOP
Manufacturer
NXP Semiconductors
Type
DVI, HDMI Interface Protectorr
Datasheet

Specifications of IP4777CZ38,118

Package / Case
38-TSSOP
Applications
DVD, Game Consoles, Media Players
Mounting Type
Surface Mount
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-4729-2
934061647118
1. General description
2. Features
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.
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IP4777CZ38
DVI and HDMI interface ESD protection, DDC buffering,
hot plug control and backdrive protection
Rev. 02 — 12 February 2009
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
Product data sheet

Related parts for IP4777CZ38,118

IP4777CZ38,118 Summary of contents

Page 1

IP4777CZ38 DVI and HDMI interface ESD protection, DDC buffering, hot plug control and backdrive protection Rev. 02 — 12 February 2009 1. General description The IP4777CZ38 is designed for HDMI transmitter host interface protection. The IP4777CZ38 includes DDC buffering and ...

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... NXP Semiconductors I Highest integration in a small footprint, PCB-level, optimized RF routing, 38-pin TSSOP lead-free package 3. Applications I The IP4777CZ38 can be used for a wide range of HDMI source devices, consumer and computing electronics e.g and HD DVD player N Set-top box N PC graphic card N Game console N HDMI picture performance quality enhancer module 4 ...

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... NXP Semiconductors 5. Functional diagram TMDS_D2+ TMDS_D2 TDMS_BIAS HOT_PLUG_DET_OUT TMDS_BIAS CEC_OUT LIMITER Fig 1. Functional diagram IP4777CZ38_2 Product data sheet TMDS_D1+ TMDS_BIAS TMDS_D1 TMDS_GND V CC(5V0) HOT_PLUG_DET_IN DDC_CLK_OUT CC(3V3) CEC_IN DDC_DAT_OUT SLEW RATE Rev. 02 — 12 February 2009 IP4777CZ38 DVI and HDMI interface ESD protection ...

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... NXP Semiconductors 6. Pinning information 6.1 Pinning Fig 2. Fig 3. IP4777CZ38_2 Product data sheet V 1 CC(5V0) ENABLE 2 3 GND 4 TMDS_D2+ n.c. 5 TMDS_GND 6 7 TMDS_D1+ n.c. 8 TMDS_GND 9 IP4777CZ38 TMDS_D0 n.c. TMDS_GND 12 TMDS_CLK n.c. 15 TMDS_GND CEC_IN 16 DDC_CLK_IN 17 18 DDC_DAT_IN HOT_PLUG_DET_IN 19 Pin configuration IP4777CZ38 V 1 CC(5V0) ...

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... NXP Semiconductors 6.2 Pin description Table 2. Symbol V CC(5V0) ENABLE GND TMDS_D2+ n.c. TMDS_GND TMDS_D1+ n.c. TMDS_GND TMDS_D0+ n.c. TMDS_GND TMDS_CLK+ n.c. TMDS_GND CEC_IN DDC_CLK_IN DDC_DAT_IN HOT_PLUG_DET_IN HOT_PLUG_DET_OUT DDC_DAT_OUT DDC_CLK_OUT CEC_OUT TMDS_GND TMDS_CLK n.c. TMDS_GND TMDS_D0 n.c. TMDS_GND TMDS_D1 n.c. TMDS_GND TMDS_D2 n ...

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... NXP Semiconductors Table 2. Symbol GND V CC(3V3) TMDS_BIAS [1] Type number IP4777CZ38/V is pin compatible with type number IP4776CZ38. 7. Limiting values Table 3. In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter ESD P tot T stg [1] Connector side pins: TMDS_D2+, TMDS_D2 , TMDS_D1+, TMDS_D1 , TMDS_D0+, TMDS_D0 ...

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... NXP Semiconductors 8. Static characteristics Table 4. TMDS protection circuit unless otherwise specified. amb Symbol Parameter Zener diode V Zener diode breakdown BRzd voltage R dynamic resistance dyn Protection diode I back current bck I reverse leakage current L(r) V forward voltage F V positive transient channel CL(ch)trt(pos) ...

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... NXP Semiconductors Table 5. DDC circuit …continued CC(3V3) CC(5V0) Symbol Parameter Board side: pins DDC_CLK_IN and DDC_DAT_IN Used as input V HIGH-level input voltage IH V LOW-level input voltage IL I LOW-level input current IL V input clamping voltage IK I input leakage current LI C input capacitance ...

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... NXP Semiconductors Table 6. CEC circuit 5.5 V; GND = CC(3V3) Symbol Parameter Board side: input pin CEC_IN C level shifting input capacitance I(ch-GND)(levsh) from channel to ground SR rising slew rate r N-FET V on-state voltage drop on Connector side: output pin CEC_OUT I output leakage current LO R dynamic resistance ...

Page 10

... NXP Semiconductors Table 8. Hot plug control circuit CC(5V0) CC(3V3) Symbol Parameter Connector side: output pin HOT_PLUG_DET_IN V HIGH-level output voltage IH 9. Dynamic characteristics Table 9. DDC circuits CC(3V3) CC(5V0) Symbol Parameter Board side to connector side; see Pins DDC_CLK_IN to DDC_CLK_OUT and DDC_DAT_IN to DDC_DAT_OUT ...

Page 11

... NXP Semiconductors a. Propagation delay t input: board side output: connector side (1) Dotted line indicates effect without slew rate accelerator. b. Propagation delay t Fig 4. IP4777CZ38_2 Product data sheet input: board side t PLH output: connector side PLH 1. PHL THL and transition time PHL Board side to connector side operation Rev. 02 — ...

Page 12

... NXP Semiconductors input: connector side output: board side Fig 5. IP4777CZ38_2 Product data sheet 0.3V CC(5V0) t PHL THL Propagation delay output to input and transition time input Connector side to board side operation Rev. 02 — 12 February 2009 IP4777CZ38 DVI and HDMI interface ESD protection ...

Page 13

... NXP Semiconductors 10. Application information 10.1 TMDS To protect the TMDS lines and also to comply with the impedance requirements of the HDMI specification, the IP4777CZ38 provides ESD protection with a low capacitive load. The dominant value for the TMDS line impedance is the capacitive load to ground. The IP4777CZ38 has a capacitive load of only 0 ...

Page 14

... NXP Semiconductors 0.3V CC(5V0) (1) Dotted line indicates effect without slew rate accelerator. Fig 8. DDC output waveform 10.3 Hot plug detect circuit The IP4777CZ38 includes a hot plug detect circuit that simplifies the hot plug application. The circuit generates a standard logic level from the hot plug signal. ...

Page 15

... NXP Semiconductors Fig 10. CEC module 0.8 V (1) Dotted line indicates effect without slew rate limiter. Fig 11. CEC output waveform 10.5 Backdrive protection The HDMI contains various signals which can partly supply current into an HDMI device that is powered down. Typically, the DDC lines and the CEC signals can force 5 V into the switched off device. ...

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... NXP Semiconductors 10.6 Schematic view of application Only a few external components are needed at the application to adapt the HDMI port to the parameters of the HDMI transmitter device. DDC_CLK_IN DDC_DAT_IN HOT_PLUG_DET_IN Fig 13. Schematic view of IP4777CZ38 application IP4777CZ38_2 Product data sheet V CC(5V0) V CC(3V3) 100 1.5 1.5 ...

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... NXP Semiconductors 10.7 Typical application The optimized pinning variant simplifies the printed-circuit board design. The pinning optimizes the design of the microstrip lines for defined impedance. Underneath the device a solid ground plane is part of the microstrip lines. This application requires only a few external components to adapt the HDMI port to the parameters of the HDMI transmitter device or HDMI multiplexer ...

Page 18

... NXP Semiconductors 11. Test information Fig 15. Test circuit for DDC and CEC lines Table 10. Test DDC lines CEC line IP4777CZ38_2 Product data sheet V CC(3V3 term See Table 10 for test data termination resistance should be equal to output impedance Z term R = load resistance load capacitance. L Test data ...

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... NXP Semiconductors 12. Package outline TSSOP38: plastic thin shrink small outline package; 38 leads; body width 4.4 mm; lead pitch 0 pin 1 index 1 e DIMENSIONS (mm are the original dimensions). A UNIT max. 0.15 0.95 mm 1.1 0.25 0.05 0.85 Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. ...

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... NXP Semiconductors 13. Soldering of SMD packages This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 “Surface mount reflow soldering description” . 13.1 Introduction to soldering Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits ...

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... NXP Semiconductors 13.4 Reflow soldering Key characteristics in reflow soldering are: • Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to higher minimum peak temperatures (see reducing the process window • Solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board • ...

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... NXP Semiconductors Fig 17. Temperature profiles for large and small components For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow soldering description” . 14. Abbreviations Table 13. Acronym ASIC CEC DDC DVD ESD FET GPIO HD HDMI MOSFET RoHS SD TMDS 15. Glossary HDMI sink — ...

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... NXP Semiconductors 16. Revision history Table 14. Revision history Document ID Release date IP4777CZ38_2 20090212 • Modifications: Table 3 • Table 5 • Table 6 • Table 7 • Table 8 • Table 9 IP4777CZ38_1 20080415 IP4777CZ38_2 Product data sheet Data sheet status Product data sheet : updated value tot : updated values ...

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... Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice ...

Page 25

... NXP Semiconductors 19. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 7 Limiting values Static characteristics Dynamic characteristics . . . . . . . . . . . . . . . . . 10 10 Application information 10.1 TMDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 10.2 DDC circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 10.3 Hot plug detect circuit . . . . . . . . . . . . . . . . . . . 14 10 ...

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