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MAX3815CCM+D

P1-P3P4-P6P7-P9P10-P11
General Description
The MAX3815 cable equalizer automatically provides
compensation for DVI™, HDMI™, DFP, PanelLink
®
, and
ADC cables. It extends the usable cable distance up to
36 meters. The MAX3815 is designed to equalize sig-
nals encoded in the transition-minimized differential
signaling (TMDS
®
) format.
The MAX3815 features four CML-differential inputs and
outputs (three data and one clock). It provides a loss-
of-signal (LOS) output that indicates loss-of-clock sig-
nal. The outputs include a disable function or the
equalizer can be powered down to conserve power.
For direct chip-to-chip communication, the output dri-
vers can be switched to one-half the DVI output specifi-
cation to conserve power and reduce EMI. Equalization
can be automatic or set to manual control for specific
in-cable applications.
The MAX3815 is available in a 7mm x 7mm, 48-pin
TQFP-EP package and operates over a 0°C to +70°C
temperature range.
Applications
Front-Projector DVI/HDMI Inputs
High-Definition Televisions and Displays
DVI-D/HDMI Cable-Extender Modules and Active
Cable Assemblies
LCD Computer Monitors
Features
♦ Extends TMDS Cable Reach to Projectors or
Monitors Using DVI, DFP, PanelLink, ADC, or
HDMI Interfaces
♦ Extends TMDS Interface Length as Follows:
0 to 50 Meters Over DVI-Cable, 24 AWG STP
(Shielded-Twisted Pair)
0 to 36 Meters Over DVI-Cable, 28 AWG STP
0 to 30 Meters Over DVI-Cable, 30 AWG STP
♦ Compatible with DTV Resolutions 480i, 480p,
720p, 1080i, and 1080p
♦ Compatible with Computer Resolutions VGA,
SVGA, XGA, SXGA, UXGA
♦ Fully Automatic Equalization Up to 40dB at
825MHz (1.65Gbps), No System Control Required
♦ 3.3V Power Supply
♦ Power Dissipation of 0.6W (typ)
♦ 7mm x 7mm 48-Pin TQFP Lead-Free Package
MAX3815
TMDS Digital Video Equalizer for DVI/HDMI
Cables
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
RGB/HV
ADC/SYNC
TMDS
DESERIALIZER
SELECT
IMAGE
SCALER AND
PROCESSOR
PANEL
INTERFACE
TIMING AND
DRIVERS
LCD,
DLP,
OR
LCOS
VGA INPUT
DVI-D INPUT
DVI-D CABLE UP
TO 36m OR 120ft
(28AWG STP)
LAPTOP
VIDEO PROJECTOR
MAX3815
EQUALIZER
Typical Application Circuits
19-3466; Rev 2; 2/08
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.
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3815CCM 0°C to +70°C 48 TQFP-EP*
C48E-8
MAX3815CCM+ 0°C to +70°C 48 TQFP-EP* C48E-8
+
Denotes lead-free package.
*EP = Exposed pad.
Typical Application Circuits continued at end of data sheet.
Pin Configuration appears at end of data sheet.
DVI is a trademark of Digital Display Working Group.
HDMI is a trademark of HDMI Licensing, LLC.
PanelLink and TMDS are registered trademarks of Silicon Image, Inc.
MAX3815
TMDS Digital Video Equalizer for DVI/HDMI
Cables
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
Supply Voltage V
CC
..............................................-0.5V to +4.0V
Voltage at All I/O Pins.................................-0.5V to (V
CC
+ 0.7V)
Voltage between any CML I/O Complementary Pair ..........±3.3V
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TQFP-EP (derate 36.2mW/°C above +70°C) ..2896mW
Operating Junction Temperature Range...........-55°C to +150°C
Storage Temperature Range .............................-55°C to +150°C
Die Attach Temperature...................................................+400°C
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, T
A
= 0°C to +70°C. Typical Values are at V
CC
= +3.3V, external terminations = 50Ω ±1%, TMDS rate =
250Mbps to 1.65Gbps, T
A
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
PWRDWN = HIGH 165 230
Power-Supply Current I
CC
PWRDWN = LOW 10
mA
Supply-Noise Tolerance DC to 500kHz 200 mV
P-P
EQUALIZER PERFORMANCE
1dB skin-effect loss at 825MHz 0.2
24dB skin-effect loss at 825MHz 0.2
Residual Output Jitter (Cables
Only) 0.25Gbps to 1.65Gbps
(Notes 1, 2, and 3)
40dB skin-effect loss at 825MHz 0.2
UI
CID Tolerance 20 Bits
CONTROL AND STATUS
CLKLOS Assert Level
Differential peak-to-peak at EQ input with
165MHz clock
50 mV
P-P
CML INPUTS (CABLE SIDE)
Differential Input Voltage Swing V
ID
At cable input 800 1000 1400 mV
P-P
Common-Mode Input Voltage V
CM
V
CC
-
0.4
V
CC
+
0.1
V
Input Resistance R
IN
Single-ended 45 50 55 Ω
CML OUTPUTS (ASIC SIDE)
OUTLEVEL = HIGH 800 1000 1200
Differential Output-Voltage Swing V
OD
50Ω load, each side
to V
CC OUTLEVEL = LOW 350 500 650
mV
P-P
Output-Voltage High Single-ended, OUTLEVEL = HIGH V
CC
mV
Output-Voltage Low Single-ended, OUTLEVEL = HIGH
V
CC
-
600
V
CC
-
400
mV
Output Voltage During
Power-Down
Single-ended, PWRDWN = LOW
V
CC
-
10
V
CC
+10
mV
MAX3815
TMDS Digital Video Equalizer for DVI/HDMI
Cables
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.6V, T
A
= 0°C to +70°C. Typical Values are at V
CC
= +3.3V, external terminations = 50Ω ±1%, TMDS rate =
250Mbps to 1.65Gbps, T
A
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Common-Mode Output Voltage
50Ω load, each side to V
CC
,
OUTLEVEL = HIGH
V
CC
-
0.25
V
Rise/Fall Time (Note 1) 20% to 80% 80 130 200 ps
LVTTL CONTROL AND STATUS INTERFACE
LVTTL Input High Voltage V
IH
2.0 V
LVTTL Input Low Voltage V
IL
0.8 V
LVTTL Input High Current V
IH(MIN)
< V
IN
< V
CC
-50 µA
LVTTL Input Low Current GND < V
IN
< V
IL(MAX)
-100 µA
Open-Collector Output High
R
LOAD
≥ 10kΩ to V
CC
2.4 V
Open-Collector Output Low
R
LOAD
≥ 2kΩ to V
CC
0.4 V
Open-Collector Output Sink
5mA
Note 1: AC specifications are guaranteed by design and characterization.
Note 2: Cable input swing is 800mV to 1400mV differential peak-to-peak. Residual output jitter is defined as peak-to-peak determin-
istic jitter + 14.2 times random jitter.
Note 3: Test pattern is a 2
7
- 1 PRBS + 20 ones + 2
7
- 1 PRBS (inverted) + 20 zeros.
Typical Operating Characteristics
(Typical values are at V
CC
= +3.3V, T
A
= +25°C, data pattern = 2
7
- 1 PRBS + 20 ones + 2
7
- 1 PRBS (inverted) + 20 zeros, unless
otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
MAX3815 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
605030 402010
110
120
130
140
150
160
170
180
190
200
100
070
OUTLEVEL = HIGH
OUTLEVEL = LOW
DIFFERENTIAL INPUT RETURN LOSS
vs. FREQUENCY
MAX3815 toc02
FREQUENCY (MHz)
GAIN (dB)
2500200015001000500
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50
0 3000
EQUALIZER INPUT AFTER 205ft OF GORE 89
CABLE (TOP) EQUALIZER OUTPUT (BOTTOM)
MAX3815 toc03
5ns/div
128mV/div
350mV/div
DATA RATE = 1.65Gbps
40dB CABLE SKIN-EFFECT LOSS AT 825MHz
P1-P3P4-P6P7-P9P10-P11

MAX3815CCM+D

Mfr. #:
Buy MAX3815CCM+D
Manufacturer:
Maxim Integrated
Description:
Equalizers TMDS Digi Video EQ for HDMI/DVI Cables
Lifecycle:
New from this manufacturer.
Delivery:
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