MAX3814_0709 MAXIM [Maxim Integrated Products], MAX3814_0709 Datasheet

no-image

MAX3814_0709

Manufacturer Part Number
MAX3814_0709
Description
DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
The MAX3814 TMDS
FR-4 and cable losses up to the DVI™/HDMI™ transmit
connector and provides a fully compliant DVI/HDMI
TMDS output. The device can also be used in DVI/HDMI
cable applications to extend reach and improve jitter
margin of cable channels at the receive-side connector.
The on-chip TMDS drivers operate at a standard cur-
rent level for implementing a typical DVI/HDMI non-
back-terminated transmitter, as well as a 50% higher
current mode for using a 200Ω back termination resis-
tor (nonmatching) to achieve a 10dB return loss.
Typical DVI/HDMI output drivers contribute to reflection
problems between the connector and a typical high-
impedance (open) DVI/HDMI Tx output. The selectable
output current (LEVEL pin) gives the option of partial
back termination (e.g., differentially connected 200Ω) to
mitigate the reflection problem effectively while keeping
common-mode offset to a minimum.
The 4-channel implementation treats all channels identi-
cally. To allow board layout flexibility for DVI and HDMI
connectors, which have different channel order, the
clock and data channels can be arbitrarily assigned.
The MAX3814 operates from a 3.3V power supply,
standard for DVI/HDMI applications, and is packaged
in a 5mm x 5mm x 0.1mm, 32-pin TQFP package.
19-0813; Rev 1; 9/07
TMDS is a registered trademark of Silicon Image, Inc.
DVI is a trademark of Digital Display Working Group. HDMI is a trademark of HDMI Licensing, LCC.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Laptop PC TMDS Equalizer and Driver
Docking Station TMDS Equalizer and Driver
Cable TMDS Equalizer
INA+/-
MAX3814
INB+/-
________________________________________________________________ Maxim Integrated Products
TERMINATED TO V
INC+/-
®
IND+/-
General Description
EQ/driver IC compensates for
CC
EQUALIZER
Applications
1
2
3
4
AMPLIFIER
DVI/HDMI TMDS FR-4 and
LIMITING
♦ Equalizes FR-4 Board Microstrip and Cable HF
♦ Compatible with HDMI 1.3
♦ Less Than 0.2UI
♦ Input Terminations: 50Ω (Each Side to V
♦ Output of Driver is a Fully DVI/HDMI TMDS-
♦ Output Amplitude: 1.05V
♦ Enable Pin to Select Normal Operation or Power-
♦ LEVEL Pin to Select Output Current for Use With
♦ 32-Pin TQFP for Four Channels; Any Channel Can
♦ V
+ Denotes a lead-free package.
Pin Configuration appears at end of data sheet.
MAX3814CHJ+
Cable Equalizer/Driver
1
Losses Up to 15dB at 825MHz for Operation at
0.25Gbps to 1.65Gbps
0 to 15dB Channel Loss at 825MHz
Compatible Cable Driver
Down Mode
or Without Back Termination
Be Either a TMDS Data or Clock Signal
Ratings of 5.5V (for Fault Conditions)
CC
2
PART
3
= 3.3V; Signal Pins Have Absolute Max
Simplified Functional Diagram
4
OUTPUT LEVEL CONTROL
DRIVER 1
LEVEL
TEMP RANGE
0°C to +70°C
P-P
Ordering Information
2
Residual Jitter at 1.65Gbps for
3
4
P-P
OUTA+/-
ENABLE
OUTB+/-
Differential
PIN-
PACKAGE
32 TQFP
OUTC+/-
OUTD+/-
Features
CC
CODE
H32+1
) ±10%
PKG
1

Related parts for MAX3814_0709

MAX3814_0709 Summary of contents

Page 1

Rev 1; 9/07 General Description ® The MAX3814 TMDS EQ/driver IC compensates for FR-4 and cable losses up to the DVI™/HDMI™ transmit connector and provides a fully compliant DVI/HDMI TMDS output. The device can also be used in DVI/HDMI ...

Page 2

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver ABSOLUTE MAXIMUM RATINGS Termination-Supply Voltage Range.......................-0.5V to +4.0V Signal Voltage Range on Any One Signal Wire ....-0.5V to +4.0V CML Common-Mode Voltage Range on Any I/O Pair (sustained) .....................................-0.5V to +5.5V CML Common-Mode Voltage ...

Page 3

SPECIFICATION TABLES (continued) (Typical values measured 3.3V ±0.3V 0°C to +70°C; with external terminations = 50Ω ±1% to voltage = 3.3V ±0.7V. Tested at 1.65Gbps. AC parameters guar- A anteed by design and ...

Page 4

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver SPECIFICATION TABLES (continued) (Typical values measured 3.3V ±0.3V 0°C to +70°C; with external terminations = 50Ω ±1% to voltage = 3.3V ±0.7V. Tested at 1.65Gbps. AC parameters ...

Page 5

T = +25°C, unless otherwise noted. Residual jitter is measured directly from the eye diagram histogram after 5000 hits MAX3814 OUTPUT: 1.65Gbps DATA AFTER 30ft OF TENSOLITE 28 AWG CABLE MAX3814 toc04 100ps/div SINGLE-ENDED/DIFFERENTIAL INPUT ...

Page 6

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver PIN NAME 1, 8, 17, 24 N.C. No Connection. Not internally connected. 2 INB+ Positive TMDS Input, CML 3 INB- Negative TMDS Input, CML Power Supply. All pins must ...

Page 7

Detailed Description The MAX3814 TMDS equalizer/driver accepts differential CML input data rates from 250Mbps to 1.65Gbps. It con- sists of four differential CML input buffers, four indepen- dent fixed equalizers, four limiting amplifiers, and four differential CML output buffers (Figure ...

Page 8

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver CML Inputs and Outputs The input buffers and the output drivers are current- mode logic (CML). See Figures 2, 3, and 4. The input buffers consist of a 50Ω load resistor connected to V ...

Page 9

TRANSIENT SUPRESSOR CLAMP LEVEL = LOW ENABLE = HIGH 10mA 5mA Figure 4. Simplified Output Circuit with Back Termination Resistor Output Enable Control The ENABLE pin is an LVTTL input that allows the user to shut off the output-collector currents, ...

Page 10

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver Laptop PC TMDS Equalizer and Driver As shown at location XX in Figure 6b, the MAX3814 equalizes trace losses and redrives the TMDS outputs at the docking connector. The 200Ω resistor at the out- ...

Page 11

Cable TMDS Equalizer The MAX3814 is useful in providing equalization for cables losses at location ZZ, at the input DVI/HDMI connector of the remote display. It can equalize cable lengths of 15 meters of 26 AWG wire and 12 meters ...

Page 12

DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver DVI-D OR HDMI EXTENDER BOX UP TO 60m DVI-D OR MAX3816 HDMI CABLE DDC EXTENDER MAX3815 EQUALIZER DRIVER/EQUALIZER VIDEO SOURCE DIGITAL BROADCAST DIGITAL CABLE DIGITAL SATELLITE DVD Blu-ray™ DISC HD-DVD Blu-ray is a trademark ...

Page 13

Pin Configuration TOP VIEW OUTA OUTA MAX3814 29 LEVEL INA INA TQFP (5mm × ...

Related keywords