MAXIM MAX3814 Technical data

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
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 cur­rent level for implementing a typical DVI/HDMI non­back-terminated transmitter, as well as a 50% higher
current mode for using a 200Ω back termination resis­tor (nonmatching) to achieve a 10dB return loss.
Typical DVI/HDMI output drivers contribute to reflection
problems between the connector and a typical high­impedance (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 identi­cally. 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.

Applications

Laptop PC TMDS Equalizer and Driver

Docking Station TMDS Equalizer and Driver

Cable TMDS Equalizer

Features

♦ Equalizes FR-4 Board Microstrip and Cable HF

Losses Up to 15dB at 825MHz for Operation at

0.25Gbps to 1.65Gbps

♦ Compatible with HDMI 1.3

♦ Less Than 0.2UI

P-P

Residual Jitter at 1.65Gbps for

0 to 15dB Channel Loss at 825MHz

♦ Input Terminations: 50Ω (Each Side to V

CC

) ±10%

♦ Output of Driver is a Fully DVI/HDMI TMDS-

Compatible Cable Driver

♦ Output Amplitude: 1.05V

P-P

Differential

♦ Enable Pin to Select Normal Operation or Power-

Down Mode

♦ LEVEL Pin to Select Output Current for Use With

or Without Back Termination

♦ 32-Pin TQFP for Four Channels; Any Channel Can

Be Either a TMDS Data or Clock Signal

♦ V

CC

= 3.3V; Signal Pins Have Absolute Max

Ratings of 5.5V (for Fault Conditions)

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

________________________________________________________________

Maxim Integrated Products

1

Simplified Functional Diagram

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX3814CHJ+ 0°C to +70°C 32 TQFP

19-0813; Rev 2; 12/10

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.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

TMDS is a trademark of Silicon Image, Inc.
DVI is a trademark of Digital Display Working Group.
HDMI is a registered trademark and registered service mark of HDMI Licensing, LCC.

EVALUATION KIT

AVAILABLE

Pin Configuration appears at end of data sheet.

TERMINATED TO V

IND+/-

INC+/-

INB+/-

INA+/-

MAX3814

CC

EQUALIZER

4

3

2

1

LIMITING

AMPLIFIER

1

4

3

2

OUTPUT LEVEL CONTROL

DRIVER 1

LEVEL

4

3

2

OUTA+/-

ENABLE

OUTD+/-

OUTC+/-

OUTB+/-

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

SPECIFICATION TABLES

(Typical values measured at VCC= 3.3V, TA= +25°C; external terminations = 50Ω ±1%; min/max values valid over VCC= 3.3V
±0.3V, T

A

= 0°C to +70°C; with external terminations = 50Ω ±1% to voltage = 3.3V ±0.7V. Tested at 1.65Gbps. AC parameters guar-

anteed by design and characterization.)

POWER SUPPLY

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

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 Range on Any I/O Pair

(sustained, within V

CC

and GND) ...-3.3V to +3.3V, Differential

CML Output Loading (termination)............................0Ω to Open

Operating Ambient Temperature Range ................0°C to +70°C

Storage Ambient Temperature Range...............-40°C to +150°C

ESD Human Body Model, Any Pin .....................................2000V

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

OPERATING CONDITIONS

TMDS EQUALIZER PERFORMANCE

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

Operating Ambient Temperature 0 25 70 °C

Data Rate 0.25 1.65 Gbps

Maximum Channel Loss

Source Output Rise/Fall Time

Differentia l Input-Voltage Swing

Maximum Supply Noise
Tolerance

CC

3.0 3.3 3.6 V

At 825MHz, FR-4 microstrip compensate
on curve

20% to 80%, mea sured at source
transmitter (input to channel)

Measured at source transm itter (input to
channel)

DC-5000kHz, all specifications maintained 50 mV

15 dB

240 ps

700 1050 1400 mV

P-P

P-P

PARAMETER CONDITIONS MIN TYP MAX UNITS

DC PARAMETERS

Supply Current 110 140 mA

PARAMETER CONDITIONS MIN TYP MAX UNITS

Residua l Output Jitter (15 x

+ DJ) from 0.25Gbps to

RJ

RMS

1.65Gbps

Subtract source j itter for DJ, 0 to 15dB FR4 loss at
825MHz (Note 1)

0.2 UI

P-P

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

_______________________________________________________________________________________ 3

SPECIFICATION TABLES (continued)

(Typical values measured at VCC= 3.3V, TA= +25°C; external terminations = 50Ω ±1%; min/max values valid over VCC= 3.3V
±0.3V, T

A

= 0°C to +70°C; with external terminations = 50Ω ±1% to voltage = 3.3V ±0.7V. Tested at 1.65Gbps. AC parameters guar-

anteed by design and characterization.)

CML INPUTS

CML OUTPUTS

PARAMETER CONDITIONS MIN TYP MAX UNITS

DC PARAMETERS

V

-

Common-Mode Input Voltage

Input Termination Voltage When disconnected from source

Single-Ended Input Termination With 50Ω load, each side to V

AC PARAMETERS

Differential Input Return Loss < 1.6GHz 14 dB

CC

CC

400

V

-

CC

10

45 50 55 Ω

VCC +

100

VCC +

10

mV

mV

PARAMETER CONDITIONS MIN TYP MAX UNITS

DC PARAMETERS

Differential Output-Voltage Swing

Single-Ended High Output
Voltage

Single-Ended Low Output
Voltage

Output Voltage When ENABLE
Disabled

AC PARAMETERS

Output, Rise/Fall Time

With 50Ω load, each side to VCC;
LEVEL = low

With 50Ω load, each side to V
LEVEL = high; 200Ω back termination

LEVEL = low

LEVEL = low

LEVEL = low, ENABLE = high

20% to 80%; with 50Ω load,
each side to V

CC

CC

;

900 1050 1200

900 1050 1200

V

-

CC

10

V

-

CC

600

V

-

CC

10

80 170 230 ps

VCC +

10

VCC -

400

VCC +

10

mV

P-P

mV

mV

mV

Typical Operating Characteristics

(VCC= +3.3V, TA= +25°C, unless otherwise noted. Residual jitter is measured directly from the eye diagram histogram after 5000 hits.)

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

4 _______________________________________________________________________________________

Note 1: The specified FR-4 loss is from 12-mil traces, 7-mil spacing, and 6-mil depth (Prepreg) with no solder mask. The test pattern

is a 2

7

- 1, 20 zeros, inverted 2

7 -

1, and 20 ones.

LVTTL/LVCMOS AND OPEN-COLLECTOR LVTTL

SPECIFICATION TABLES (continued)

(Typical values measured at VCC= 3.3V, TA= +25°C; external terminations = 50Ω ±1%; min/max values valid over VCC= 3.3V
±0.3V, T

A

= 0°C to +70°C; with external terminations = 50Ω ±1% to voltage = 3.3V ±0.7V. Tested at 1.65Gbps. AC parameters guar-

anteed by design and characterization.)

DC PARAMETERS

LVTTL Input High Voltage 2.0 V

LVTTL Input Low Voltage 0.8 V

LVTTL Input High Current -100 +100 μA

LVTTL Input Low Current -100 +100 μA

PARAMETER CONDITIONS MIN TYP MAX UNITS

POWER-SUPPLY CURRENT

vs. TEMPERATURE

150

LEVEL = HIGH

MAX3814 toc01

100

LEVEL = LOW

50

POWER-SUPPLY CURRENT (mA)

0

070

TEMPERATURE (°C)

605040302010

MAX3814 INPUT: EYE DIAGRAM OF

1.65Gbps DATA AFTER 80in OF FR-4

/div

P-P

140mV

MAX3814 toc02

100ps/div

MAX3814 OUTPUT: EYE DIAGRAM OF MAX3814

EQUALIZING 1.65Gbps DATA AFTER 80in OF FR-4

/div

P-P

140mV

100ps/div

MAX3814 toc03

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

_______________________________________________________________________________________

5

Typical Operating Characteristics (continued)

(VCC= +3.3V, TA= +25°C, unless otherwise noted. Residual jitter is measured directly from the eye diagram histogram after 5000 hits.)

SINGLE-ENDED/DIFFERENTIAL INPUT

RETURN LOSS (S11/SDD11)

MAX3814 toc07

FREQUENCY (MHz)

GAIN (dB)

20001000

-25

-20

-15

-10

-5

0

-30
0 3000

(INPUT SIGNAL LEVEL = 0dBm)
(OUTPUT DISABLED)

SDD11

S11

DETERMINISTIC JITTER vs.

LENGTH OF FR-4 BOARD

MAX3814 toc08

LENGTH OF FR-4 (in)

DJ (ps)

908070605040302010

50

100

150

200

250

0

0 100

(SOURCE SIGNAL LEVEL = 700mV

P-P

/1200mV

P-P

,
DATA RATE = 0.825Gbps AND 1.65Gbps,
LOSS = 0.209dB/in AT 820MHz)

700mV

P-P

1200mV

P-P

1.65Gbps

825Mbps

700mV

P-P

DETERMINISTIC JITTER vs.
LENGTH OF 24 AWG CABLE

MAX3814 toc09

LENGTH OF 24 AWG CABLE (ft)

DJ (ps)

3530252015105

10

20

30

40

50

0

040

1.65Gbps

(SOURCE SIGNAL LEVEL = 700mV

P-P

,

DATA RATE = 1.65Gbps AND 2.25Gbps,

CABLE LOSS = 0.261dB/ft AT 1.12GHz)

2.25Gbps

DETERMINISTIC JITTER

FOR 28 AWG TWIN AX CABLE

MAX3814 toc10

LENGTH OF TWIN AX CABLE (ft)

DJ (ps)

40302010

50

100

150

200

0

050

VIN = 700mV

P-P

VIN = 1200mV

P-P

(SOURCE SIGNAL LEVEL = 700mV

P-P

/1200mV

P-P

,
DATA RATE = 1.65Gbps,
LOSS = 0.358dB/ft AT 820MHz)

RESIDUAL JITTER DUE TO POWER-SUPPLY

SINUSOIDAL NOISE

MAX3814 toc11

NOISE FREQUENCY (MHz)

RESIDUAL JITTER (ps)

1010.10.01

20

40

60

80

100

0

0.001 100

NO NOISE

50mV NOISE

(SOURCE SIGNAL LEVEL = 700mV

P-P

,

NOISE SIGNAL LEVEL = 50mV

P-P

,

DATA RATE = 1.65Gbps, 60in FR-4)

RESIDUAL JITTER

MAX3814 toc12

INPUT SIGNAL LEVEL (mV

P-P

)

RESIDUAL JITTER (ps)

15001100700

50

100

150

0

300

(SOURCE SIGNAL LEVEL = 300mV

P-P

TO 1800mV

P-P

,
DATA RATE = 1.65Gbps, 60in OF FR-4 BOARD,
FR-4 LOSS = 12.61dB AT 820MHz)

MAX3814 OUTPUT: 1.65Gbps DATA AFTER

30ft OF TENSOLITE 28 AWG CABLE

/div

P-P

140mV

100ps/div

MAX3814 toc04

MAX3814 OUTPUT: 250Mbps DATA AFTER

30ft OF TENSOLITE 28 AWG CABLE

/div

P-P

140mV

100ps/div

MAX3814 toc05

MAX3814 OUTPUT: 2.25Gbps DATA AFTER

33ft OF 24 AWG SPECTRA STRIP CABLE

125mV/div

74ps/div

MAX3814 toc06

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

6 _______________________________________________________________________________________

Pin Description

PIN NAME FUNCTION

1, 8, 17, 24 N.C. No Connection. Not internally connected.

2 INB+ Positi ve TMDS Input, CML

3 INB- Negative TMDS Input, CML

4, 5, 9, 32 VCC Power Supply. All pins must be connected to VCC.

6 INC+ Positive TMDS Input, CML

7 INC- Negati ve TMDS Input, CML

10 IND+ Positive TMDS Input, CML

11 IND- Negative TMDS Input, CML
12 ENABLE Active-Low Enab le Input, LVTTL. High to disab le, outputs off. Low to enable, outputs on.

13, 16, 20, 21,

25, 28

14 OUTD- Negati ve TMDS Output, CML

15 OUTD+ Positive TMDS Output, CML

18 OUTC- Negative TMDS Output, CML

19 OUTC+ Positive TMDS Output, CML

22 OUTB- Negative TMDS Output, CML

23 OUTB+ Positive TMDS Output, CML

26 OUTA- Negative TMDS Output, CML

27 OUTA+ Positive TMDS Output, CML

29 LEVEL

30 INA+ Positi ve TMDS Input, CML

31 INA- Negative TMDS Input, CML

Negative Power Supply (Ground)

V

EE

Output Current Level Control, LVTTL. Low for 10mA output currents. High for 15mA currents.
Used for 200 back differential termination resistors.

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

_______________________________________________________________________________________ 7

Detailed Description

The MAX3814 TMDS equalizer/driver accepts differential
CML input data rates from 250Mbps to 1.65Gbps. It con­sists of four differential CML input buffers, four indepen­dent fixed equalizers, four limiting amplifiers, and four
differential CML output buffers (Figure 1). The MAX3814
functions both as an equalizer and as a driver.

As an equalizer the MAX3814 automatically adjusts for
attenuation levels up to 16dB at 825MHz from either
dielectric board losses or skin-effect losses in copper
cable.

As a driver the MAX3814 provides CML outputs. The
CML output is normally open (i.e., no back termination)
and is DC-coupled by transmission line to a termination
at the far end per DVI/HDMI standards. The MAX3814
provides nominally 10mA output-switching currents.
However, with the MAX3814, there is a selectable higher
current drive to accommodate a differential 200Ω back
termination resistor while maintaining the differential
swing of 1000mV

P-P

. This 200Ω back termination resistor
serves to dampen signal reflections returning to the
device from discontinuities in the channel such as DVI or
HDMI connectors, providing a 10dB return loss. See the

CML Inputs and Outputs

section for more information.

Figure 1. Functional Diagram

TERMINATED
TO V

INA+/-

INB+/-

CC

TERMINATED
TO V

CC

EQUALIZER

EQUALIZER

LIMITING

AMPLIFIER

LIMITING

AMPLIFIER

DRIVER

DRIVER

OUTA+/-

OUTB+/-

TERMINATED
TO V

INC+/-

IND+/-

CC

TERMINATED
TO V

CC

EQUALIZER

EQUALIZER

MAX3814

LIMITING

AMPLIFIER

LIMITING

AMPLIFIER

DRIVER

DRIVER

LEVEL

OUTPUT LEVEL CONTROL

OUTC+/-

OUTD+/-

ENABLE

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

8 _______________________________________________________________________________________

CML Inputs and Outputs

The input buffers and the output drivers are current­mode logic (CML). See Figures 2, 3, and 4.

The input buffers consist of a 50Ω load resistor connected
to V

CC

and the input connected to a differential equalizer.

The output drivers are open-collector. The current in
these outputs can be adjusted to 10mA or 15mA with
the control pin LEVEL. For 10mA operation, each open­collector output drives through a transmission line to a
50Ω pullup of the next stage, as shown in Figure 3. For
recommended 15mA operation, the two outputs are
bridged by an external 200Ω back termination resistor

that is subsequently pulled up by a 50Ω resistor of the
next stage, as shown in Figure 4. The ESD structure per­mits signals to achieve 5.5V absolute maximum ratings,
high common-mode range, and compatibility to HDMI
testing. The back termination resistor should be placed
as close as possible to the MAX3814 in the layout.

The ESD protection for both the input and output cir­cuitry consists of diodes connected to a transient volt­age suppressor clamp shown as a Schottky diode in
Figures 2, 3, and 4. For more information about the
function of the suppressor clamp, refer to the

Detailed

Description

section of the MAX3208E data sheet

(www.maxim-ic.com/MAX3208E).

Figure 2. Simplified Input Circuit

Figure 3. Simplified Output Circuit Without Back Termination
Resistor

V

TRANSIENT
SUPRESSOR
CLAMP

IN_+

CC

50Ω

V

T

50Ω50Ω

TRANSIENT
SUPRESSOR
CLAMP

OUT_+

OUT_-

TRANSIENT
SUPRESSOR
CLAMP

IN_-

50Ω

+

-

V

EQUALIZER

CC

ENABLE = HIGH

10mA

LEVEL = LOW

5mA

Output Enable Control

The ENABLE pin is an LVTTL input that allows the user
to shut off the output-collector currents, thereby reduc­ing power consumption of the device. Forcing this pin
high turns the output currents off; forcing this pin low
(normal operation) turns the currents on.

Figure 5 shows a simplified circuit for both the output
and enable controls.

Applications Information

Figure 6a shows a typical TMDS channel from a graph­ics board of a laptop computer to a remote display.
Maintaining a 100Ω differential impedance for this
channel has its challenges. Besides proper board lay­out of traces, there are multiple reflection points (A to
H). For example, at interface F in Figure 6a, a circular
arrow shows a reflection at the connector of a remote
display. When these reflections hit another interface,
they reflect again and thus become echoes corrupting
the incident signal. In Figure 6b, the MAX3814 is used
to equalize losses, isolate reflections, and redrive the
transmission line with high fidelity.

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

_______________________________________________________________________________________ 9

Figure 4. Simplified Output Circuit with Back Termination
Resistor

Figure 5. Simplified Input Circuitry for Output Level (LEVEL)
and Enable (

ENABLE) Control

V

T

50Ω

TRANSIENT
SUPRESSOR
CLAMP

ENABLE = HIGH

10mA

LEVEL = LOW

5mA

OUT_+

200Ω

OUT_-

BACK TERMINATION

50Ω

V

CC

44kΩ

LEVEL,
ENABLE
INPUTS

88kΩ

44kΩ

50kΩ
TRANSIENT
SUPRESSOR
CLAMP

MAX3814

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 out­put of the MAX3814 absorbs reflections from the dock­ing connector.

Dock or Port Expander

The MAX3814 can also be used on the dock or port
expander as it equalizes loss, isolates the connector,
and redrives TMDS output signals at location YY as
shown in Figure 6b. Similarly, with the previous applica-

tion, the 200Ω resistor at the output of the MAX3814
absorbs reflections in this case from the DVI or the
HDMI connector.

An optional 2dB to 6dB attenuator pad can be used to
absorb reflections between internal interface connec­tions. If used, the attenuator pad must be a matched Pi
or T attenuator network. The resulting flat through loss
can be made by the excellent input sensitivity of the
MAX3814 as shown in the

Typical Application Circuits

.
The MAX3814’s excellent input sensitivity allows the
attenuated signal to be restored.

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

10 ______________________________________________________________________________________

Figure 6a (top). Schematic Showing the TMDS Signal Channel from the Laptop Graphics Boards to the Remote Display. Possible
Reflection Interfaces are Labeled A to H.

Figure 6b (bottom). Schematic Showing the Same Channel, with possible location of the MAX3814 to Equalize Losses, to Absorb
Reflections, and to Redrive the Transmission Line.

LAPTOP

GRAPHICS

BOARD

ASIC

MXM
CONNECTOR

DOCKING

CONNECTOR

INTERNAL

CONNECTOR

OR FLEX

DOCK

EXTERNAL DVI/HDMI

CABLE

DVI/HDMI
CONNECTOR

DVI/HDMI
CONNECTOR

REMOTE DISPLAY

50Ω

3.3V
ASIC

50Ω

3.3V

A

B C D E F G H

REFLECTION
INTERFACES

GRAPHICS

BOARD

ASIC

LAPTOP DOCK

XX

MAX3814

50Ω

3.3V

50Ω

3.3V

MXM
CONNECTOR

200Ω

DOCKING

CONNECTOR

PAD

INTERNAL

CONNECTOR

OR FLEX

YY

MAX3814

50Ω

3.3V

50Ω

3.3V

200Ω

EXTERNAL DVI/HDMI

CABLE

DVI/HDMI
CONNECTOR

DVI/HDMI

CONNECTOR

ZZ

MAX3814

50Ω

3.3V

50Ω

3.3V

REMOTE DISPLAY

200Ω

50Ω

3.3V
ASIC

50Ω

3.3V

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 of
28 AWG wire. Again, the 200Ω resistor placed at the
output of the MAX3814 absorbs reflections from the
imperfect termination of the ASIC or imperfect transmis­sion-line interconnect.

Layout Considerations

The TMDS CML inputs are the most critical paths for
the MAX3814 and great care should be taken to mini­mize discontinuities on these transmission lines
between the connector and the IC. Here are some sug­gestions for maximizing the performance of the
MAX3814.

• The data and clock inputs should be wired direct­ly between the cable connector and IC without
stubs.

• The 4-channel implementation treats all channels
identically. Input and output data channel designa­tions are only a guide. Polarity assignments can be
swapped and channel paths can be interchanged.

• An uninterrupted ground plane should be posi­tioned beneath the high-speed I/Os.

• Ground-path vias should be placed close to the
IC and the input/output interfaces to allow a return
current path to the IC and the DVI and HDMI
inputs.

• Maintain a 100Ω differential transmission line
impedance into and out of the MAX3814.

• To minimize possible reflections, choose the
200Ω back termination option. Place this resistor
as close to the MAX3814 as possible.

• Use good high-frequency layout techniques and
multilayer boards with an uninterrupted ground
plane to minimize EMI and crosstalk. Refer to the
schematic and board layers of the MAX3814EVKIT.

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

______________________________________________________________________________________ 11

Typical Application Circuits

GRAPHICS

BOARD

ASIC

LAPTOP DOCK

CMOS

ROUTING

SWITCH

MXM
CONNECTOR

MAX3814

50Ω

3.3V

50Ω

3.3V

200Ω

DOCKING

CONNECTOR

EXTERNAL DVI/HDMI

DVI/HDMI
CONNECTOR

CABLE

50Ω

3.3V

50Ω

3.3V

DVI/HDMI

CONNECTOR

MAX3814 MAX3814

50Ω

3.3V

50Ω

3.3V

200Ω

REMOTE DISPLAY

200Ω

50Ω

3.3V
ASIC

50Ω

3.3V

Typical Application Circuits (continued)

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

12 ______________________________________________________________________________________

DVI-D OR HDMI
EXTENDER BOX

UP TO 60m

DVI-D OR

HDMI CABLE

Blu-ray is a trademark of Blu-ray Disc Association.

MAX3815

EQUALIZER

MAX3816

DDC EXTENDER

MAX3814

DRIVER/EQUALIZER

VIDEO SOURCE

DIGITAL BROADCAST

DIGITAL CABLE

DIGITAL SATELLITE

DVD

Blu-ray™ DISC

HD-DVD

3.3V ±10%

V

CC

STANDARD

LENGTH DVI-D

OR HDMI CABLE

HDTV

LEVEL

V

CC

V

Z (DIFFERENTIAL) = 100Ω

CONTROLLED IMPEDANCE

TRANSMISSION LINE OR CABLE

0.1μF

0.1μF

50Ω

50Ω

CC

MAX3814

EQ/DRIVER
(1 OF 4)

V

CC

ENABLEGND

3.3V ±10%

100Ω

100Ω

3.3V ±10%

CONTROLLED IMPEDANCE

0.1μF
TRANSMISSION LINE OR CABLE

Z (DIFFERENTIAL) = 100Ω

0.1μF

AC-COUPLING APPLICATION:

(NOT FOR A DC-COUPLED

DVI/HDMI TMDS LINK)

3.3V

50Ω

50Ω

3.3V

Rx

MAX3814

DVI/HDMI TMDS FR-4 and

Cable Equalizer/Driver

______________________________________________________________________________________ 13

Chip Information

PROCESS: SiGe BiPOLAR

Package Information

For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages

. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.

MAX3814

TQFP

(5mm × 5mm × 1.0mm)

TOP VIEW

29

30

28

27

12

11

13

INB+

V

CCVCC

INC+

INC-

14

N.C.

OUTB+

V

EEVEE

N.C.

OUTC+

OUTC-

1+2

V

EE

4567

2324 22 20 19 18

LEVEL

INA+

OUTD-

V

EE

ENABLE

IND-

INB-

OUTB-

3

21

31

10

INA-

IND+

32

9

V

CC

V

CC

OUTA+

26

15

OUTD+

OUTA-

25

16

V

EE

N.C.

N.C.

8

17

V

EE

Pin Configuration

PACKAGE

TYPE

PACKAGE

CODE

OUTLINE

NO.

LAND

PATTERN NO.

32 TQFP H32+1

21-0110 90-0149

MAX3814

DVI/HDMI TMDS FR-4 and
Cable Equalizer/Driver

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

14

____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

Revision History

REVISION

NUMBER

0 5/07 Initial release —

1 9/07

2 12/10

REVISION

DATE

Corrected T
globals; replaced the package outline drawing with the Package Information table

Changed the operating ambient temperature max from 85°C (max) to 70°C (max) in
the Operating Conditions table; added the package code and land pattern no. to the
Package Informat ion table

= 0°C to +85°C to TA = 0°C to +70°C in the Specification Tables

A

DESCRIPTION

PAGES

CHANGED

2, 3, 4, 13

2, 13