IP4770_71_72CZ16 NXP Semiconductors, IP4770_71_72CZ16 Datasheet

The IP4770CZ16, IP4771CZ16, IP4772CZ16 is connected between the VGA/DVIinterface and the video graphics controller and includes level shifting for the DDC signals,buffering for the SYNC lines as well as high-level ESD protection diodes for the RGBsig

IP4770_71_72CZ16

Manufacturer Part Number
IP4770_71_72CZ16
Description
The IP4770CZ16, IP4771CZ16, IP4772CZ16 is connected between the VGA/DVIinterface and the video graphics controller and includes level shifting for the DDC signals,buffering for the SYNC lines as well as high-level ESD protection diodes for the RGBsig
Manufacturer
NXP Semiconductors
Datasheet
1.IP4770_71_72CZ16.pdf (14 pages)
1. General description
2. Features and benefits
The IP4770CZ16, IP4771CZ16, IP4772CZ16 is connected between the VGA/DVI
interface and the video graphics controller and includes level shifting for the DDC signals,
buffering for the SYNC lines as well as high-level ESD protection diodes for the RGB
signal lines.
The level shifting functions are required when the DDC controller operates at a lower
supply voltage than the monitor. To use this level shifting function the gates of the two
N-channel MOSFETs have to be connected to the supply rail of the DDC transceivers.
Buffering for the SYNC signals is provided by two non-inverting buffers, which accept TTL
input levels and convert these to CMOS compliant output levels between pins V
and GND.
The IP4770CZ16 and IP4771CZ16 contain the formerly external termination resistors,
which are typically required for the HSYNC and VSYNC lines of the video interface:
All RGB I/Os are protected by a special diode configuration offering a low line capacitance
of 4 pF (maximum) only to provide protection to downstream components for ESD
voltages as high as ±8 kV contact discharge according to IEC 61000-4-2, level 4
standard.
•
•
•
IP4770/71/72CZ16
VGA/video interface with integrated buffers, ESD protection
and integrated termination resistors
Rev. 2 — 19 May 2011
Integrated high-level ESD protection, buffering, SYNC signal impedance matching and
level shifting
Terminal connections with integrated rail-to-rail clamping diodes with downstream ESD
protection of ±8 kV according to IEC 61000-4-2, level 4 standard
Backflow protection on DDC lines
Drivers for HSYNC and VSYNC lines
Bidirectional level shifting N-channel FETs available for DDC clock and DDC data
channels
Integrated impedance matching resistors on SYNC lines
Line capacitance < 4 pF per channel
Lead-free package and RoHS compliant
IP4770CZ16: R
IP4771CZ16: R
IP4772CZ16: R
sync
sync
sync
= 55 Ω
= 65 Ω
= 10 Ω to allow termination of the SYNC lines
Product data sheet
CC(SYNC)

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IP4770_71_72CZ16 Summary of contents

Page 1

IP4770/71/72CZ16 VGA/video interface with integrated buffers, ESD protection and integrated termination resistors Rev. 2 — 19 May 2011 1. General description The IP4770CZ16, IP4771CZ16, IP4772CZ16 is connected between the VGA/DVI interface and the video graphics controller and includes level shifting ...

Page 2

... Type number IP4770CZ16 IP4771CZ16 IP4772CZ16 5. Marking Table 2. Type number IP4770CZ16 IP4771CZ16 IP4772CZ16 IP4770_71_72CZ16 Product data sheet Ordering information Package Name Description SSOP16 plastic shrink small outline package; 16 leads; body width 3.9 mm; lead pitch 0.635 mm Marking codes All information provided in this document is subject to legal disclaimers. ...

Page 3

... NXP Semiconductors 6. Functional diagram Fig 1. IP4770_71_72CZ16 Product data sheet V CC(SYNC) R term SYNC_IN1 R term SYNC_IN2 V CC(SYNC) V CC(DDC) DDC_IN1 DDC_IN2 IP4772CZ16 and R sync buffer term Functional diagram All information provided in this document is subject to legal disclaimers. Rev. 2 — 19 May 2011 IP4770/71/72CZ16 VGA/video interface ...

Page 4

... Pinning Fig 2. 7.2 Pin description Table 3. Symbol V CC(SYNC) V CC(VIDEO) VIDEO_1 VIDEO_2 VIDEO_3 GND V CC(DDC) BYP DDC_OUT1 DDC_IN1 DDC_IN2 DDC_OUT2 SYNC_IN1 SYNC_OUT1 14 SYNC_IN2 SYNC_OUT2 16 IP4770_71_72CZ16 Product data sheet V 1 CC(SYNC CC(VIDEO) 3 VIDEO_1 IP4770CZ16 4 VIDEO_2 IP4771CZ16 VIDEO_3 5 IP4772CZ16 GND CC(DCC) 8 BYP Pin configuration ...

Page 5

... ESD pulse is applied between the pins VIDEO_1, VIDEO_2, VIDEO_3, SYNC_OUT1, SYNC_OUT2, DDC_OUT1, DDC_OUT2 and GND. The bypass capacitor at pin BYP can be omitted. In this case the maximum ESD level for DDC_OUT1 and DDC_OUT2 pins is reduced to ±4 kV. IP4770_71_72CZ16 Product data sheet Conditions IEC 61000-4-2; pins ...

Page 6

... SYNC outputs unloaded. [ sync term buffer = 0 Ω. [ because R sync buffer term [4] This parameter is guaranteed by design and characterization. IP4770_71_72CZ16 Product data sheet Conditions Conditions CC(SYNC) SYNC input IP4772CZ16 IP4772CZ16 IP4770CZ16 ...

Page 7

... L(r) V Zener diode breakdown voltage BRzd V diode forward voltage Fd ≤ V − 0.4 V and output V [1] Input V I(DDC_INx) CC(DDC) input and output V I(DDC_INx) CC(DDC) IP4770_71_72CZ16 Product data sheet Conditions static input signals CC(VIDEO MHz 2 GND I CC(VIDEO Conditions V = 2.5 V ...

Page 8

... VCC_5V via these resistors when VCC_5V is powered down. HSYNC VSYNC VCC_5V VCCGPIO VCCA_DAC RED FILTER GREEN FILTER BLUE FILTER 3 × 75 Ω DDC_CLK DDC_DATA Fig 3. Application diagram IP4770_71_72CZ16 Product data sheet 100 kΩ 100 kΩ V CC(SYNC) SYNC_OUT2 SYNC_IN2 V CC(DCC) SYNC_IN1 SYNC_OUT1 V CC(VIDEO) VIDEO_1 DCC_OUT2 DCC_IN2 ...

Page 9

... DIMENSIONS (mm are the original dimensions) A UNIT max. 0.25 1.55 mm 1.73 0.25 0.10 1.40 Note 1. Plastic or metal protrusions of 0.2 mm maximum per side are not included. OUTLINE VERSION IEC SOT519-1 Fig 4. Package outline SOT519-1 (SSOP16) IP4770_71_72CZ16 Product data sheet 2.5 scale (1) ( 0.31 ...

Page 10

... FET HSYNC MOSFET PC RFI RGB RoHS SYNC TTL VGA VSYNC IP4770_71_72CZ16 Product data sheet Abbreviations Description Complementary Metal Oxide Semiconductor Data Display Channel Digital Video Interface ElectroMagnetic Interference ElectroStatic Discharge Field Effect Transistor Horizontal SYNChronization Metal Oxide Semiconductor Field Effect Transistor ...

Page 11

... NXP Semiconductors 14. Revision history Table 10. Revision history Document ID Release date IP4770_71_72CZ16 v.2 20110519 Modifications: IP4770CZ16_4771_4772 v.1 20061025 IP4770_71_72CZ16 Product data sheet Data sheet status Product data sheet • Section 5 “Marking”: added. • Figure 1: corrected. • Table 9: updated. • Section 15 “Legal information”: updated. ...

Page 12

... Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or IP4770_71_72CZ16 Product data sheet [3] Definition This document contains data from the objective specification for product development. ...

Page 13

... NXP Semiconductors’ warranty of the 16. Contact information For more information, please visit: For sales office addresses, please send an email to: IP4770_71_72CZ16 Product data sheet product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NXP Semiconductors’ ...

Page 14

... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2011. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Document identifier: IP4770_71_72CZ16 VGA/video interface All rights reserved. Date of release: 19 May 2011 ...

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