19-1024; Rev 0; 10/07
KIT
ATION
EVALU
E
BL
AVAILA
DisplayPort to DVI™/HDMI Level Shifter
General Description
The MAX9406 high-speed, low-skew, quad differential
input to current-mode logic (CML) translator features
high-speed signal conversion of the DisplayPort
™
(DP)
to High-Definition Multimedia Interface (HDMI
™
) technol-
ogy. This device features ultra-low propagation delay of
350ps and channel-to-channel skew of less than 20ps.
The MAX9406 supports typical data rates of 2Gbps.
The MAX9406 provides the level shift for HDMI’s
Display Data Channel (DDC) and hot-plug detection
(HPD), which converts the 5V single-ended logic to
3.3V single-ended logic.
The MAX9406 operates from a 3V to 3.6V core supply
and is specified over the -40°C to +85°C extended tem-
perature range. This device is available in 48-pin, 7mm
x 7mm thin QFN and 32-pin, 5mm x 5mm thin QFN
packages.
o
350ps Propagation Delay
o
20ps Channel-to-Channel Skew at 2Gbps
o
Low Jitters: DJ = 11ps
P-P
and RJ = 0.5ps
RMS
o
Bidirectional Level Shifter of 5V to 3.3V for DDC
Pins
o
Level Shifter of 5V to 3.3V for I/Os
o
Integrated 50Ω Input Terminations and Biasing
o
-40°C to +85°C Operating Temperature Range
Features
o
500mV Differential HDMI Output at 2Gbps Data Rate
MAX9406
Applications
Level Conversion for DP to HDMI
Data and Clock Driver and Buffer
Backplane Data and Clock Distribution
Base Stations
ATE
MAX9406ETM+
MAX9406ETJ+
PART
Ordering Information
TEMP RANGE
PIN-PACKAGE
32 Thin QFN-EP*
(5mm x 5mm x
0.8mm)
48 Thin QFN-EP*
(7mm x 7mm x
0.8mm)
PKG
CODE
T3255-4
-40°C to +85°C
-40°C to +85°C
T4877-6
DVI is a trademark of Digital Display Working Group (DDWG).
DisplayPort is a trademark of Video Electronics Standards
Association (VESA).
HDMI is a trademark of HDMI Licensing, LLC.
+Denotes
a lead-free package.
*EP
= Exposed paddle.
Pin Configurations
HPD_SNK
SDA_SNK
SCL_SNK
DDC_EN
SDA_SNK
GND
GND
18
V
CC
TOP VIEW
24
23
22
21
20
19
GND
OUT_D1-
OUT_D1+
V
CC
OUT_D2-
OUT_D2+
GND
OUT_D3-
OUT_D3+
V
CC
OUT_D4-
OUT_D4+
SCL_SNK
GND
GND
GND
DDC_EN
N.C.
N.C.
V
CC
V
CC
TOP VIEW
HPD_SNK
OE
36 35 34 33 32 31 30 29 28 27 26 25
GND
IN_D1-
IN_D1+
V
CC
IN_D2-
IN_D2+
GND
IN_D3-
IN_D3+
V
CC
IN_D4-
IN_D4+
37
38
39
40
41
42
43
44
45
46
47
48
1
GND
2
V
CC
3
N.C.
4
N.C.
5
GND
6
N.C.
7
HPD_SRC
8
SDA_SRC
9
SCL_SRC
10 11 12
N.C.
GND
V
CC
EP*
24
IN_D1- 25
IN_D1+ 26
IN_D2- 27
IN_D2+ 28
IN_D3- 29
IN_D3+ 30
IN_D4- 31
IN_D4+ 32
1
GND
23
22
21
20
19
17
16 OUT_D1-
15 OUT_D1+
14 OUT_D2-
13 OUT_D2+
MAX9406
18
17
16
15
MAX9406
OE
12 OUT_D3-
11 OUT_D3+
10 OUT_D4-
9
OUT_D4+
8
GND
+
2
V
CC
EP*
+
14
13
3
GND
4
HPD_SRC
5
SDA_SRC
6
SCL_SRC
7
V
CC
48 TQFN-EP
7mm
×
7mm
*EP EXPOSED PADDLE. CONNECT EP TO GND.
32 TQFN-EP
5mm
×
5mm
*EP EXPOSED PADDLE. CONNECT EP TO GND.
________________________________________________________________
Maxim Integrated Products
1
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.
DisplayPort to DVI™/HDMI Level Shifter
MAX9406
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ..............................................................-0.3V to +4V
All Pins to GND...........................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration (all outputs).............................Continuous
Continuous Power Dissipation (T
A
= +70°C)
32-Pin Thin QFN (derate 21.3mW/°C above +70°C) .1702mW
48-Pin Thin QFN (derate 27.8mW/°C above +70°C) .2222mW
Junction-to-Case Thermal Resistance (θ
JC
) (Note 1)
32-Pin Thin QFN........................................................+1.7°C/W
48-Pin Thin QFN........................................................+0.8°C/W
Junction-to-Ambient Thermal Resistance (θ
JA
) (Note 1)
32-Pin Thin QFN.........................................................+29°C/W
48-Pin Thin QFN.........................................................+25°C/W
Operating Temperature Range ..…………………-40°C to +85°C
Junction Temperature ………………………………………+150°C
Storage Temperature Range ……………………-65°C to +150°C
ESD Protection
Human Body Model (R
D
= 1.5kΩ, C
S
= 100pF)
IN_D_ and OUT_D_ to GND..........................................±1.5kV
Lead Temperature (soldering, 10s).………………………+300°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer board.
For detailed information on package thermal considerations, refer to
Application Note 4083
at www.maxim-ic.com/thermal-tutorial.
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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 3V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, T
A
= +25°C.)
PARAMETER
OE
INPUT
Input High Level
Input Low Level
Input Current
DDC_EN INPUT
Input High Level
Input Low Level
Input Current
HPD INPUT AND OUTPUT
Input High Level
Input Low Level
Input Current
HPD_SNK Pulldown Resistance
Output High Level
Output Low Level
DIFFERENTIAL INPUTS (IN_)
Differential Input High Threshold
Differential Input Low Threshold
Common Input Voltage
Common-Mode AC Tolerance
Differential Input Termination
V
IDH
V
IDL
V
COM
V
ID
= V
IN+
- V
IN-
V
ID
= V
IN+
- V
IN-
V
COD
= DC Avg [(V
IN+
+ V
IN-
) / 2]
-50
0
40
1.43
2
100
60
50
mV
mV
V
mV
Ω
V
IH2
V
IL2
I
IN2
R
HPD
V
OH-HPDB
V
OL-HPDB
V
IN
= 0 to V
CC
40
2.5
0
0.18
80
60
V
CC
0.4
2.4
5.3
0.8
V
V
µA
kΩ
V
V
V
IH1
V
IL1
I
IN-DDC
V
IN
= 0 to V
CC
100
2.4
0.5
V
V
µA
V
IH1
V
IL1
I
IN-EN
V
IN
= 0 to V
CC
24
2.4
0.5
V
V
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
CM_AC_P-P
V
CM_AC_P-P
= (V
IN+
+ V
IN-
) / 2 - V
COD
R
IN
2
_______________________________________________________________________________________
DisplayPort to DVI™/HDMI Level Shifter
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, T
A
= +25°C.)
PARAMETER
DIFFERENTIAL OUTPUTS (OUT_)
Single-Ended Output Swing
Single-Ended Output High
Single-Ended Output Low
Single-Ended Output Current in
High-Z
Output Short-Circuit Current
POWER CONSUMPTION
Supply Current
I
CC
I
PD
Includes 4 channels CML termination
supply current,
OE
= 0
OE
= 1
77
5
90
mA
V
OSW
V
OH3
V
OL3
I
OFF
I
OS
Output pins connected to V
CC
or GND
With a 50Ω load to V
CC
at both pins
With a 50Ω load to V
CC
at both pins
With a 50Ω load to V
CC
at both pins
450
V
CC
-
10mV
V
CC
-
600mV
-10
-20
600
V
CC
+
10mV
V
CC
-
400mV
+10
+20
mV
mV
V
µA
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX9406
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 3V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, T
A
= +25°C.) (Note 2)
PARAMETER
DIFFERENTIAL SIGNAL
Maximum Data Rate
Differential Propagation Delay
Channel-to-Channel Skew
Output Rise/Fall Time
Added Random Jitter
Added Deterministic Jitter
SINGLE-ENDED SIGNAL
CLK Frequency
HPD_SRC Rise/Fall Time
HPD Propagation Delay
f
SCK
t
RF-HPDB
t
HPD
Supports I
2
C fast mode
1
400
20
200
kHz
ns
ns
r
D
t
PD
t
SK
t
R/F
t
RJ
t
DJ
1GHz clock input
r
D
= 2Gbps, 2
23
- 1 PRBS pattern
180
0.5
11
1.85
350
20
500
50
515
1
30
Gbps
ps
ps
ps
ps
RMS
ps
P-P
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 2:
AC parameters are guaranteed by design and characterization.
_______________________________________________________________________________________
3
DisplayPort to DVI™/HDMI Level Shifter
MAX9406
Typical Operating Characteristics
(V
CC
= 3.3V, outputs terminated with 50Ω, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9406 toc01
EYE DIAGRAM
1.65Gbps PRBS
MAX9406 toc02
85
+85°C
84
+25°C
83
I
CC
(mA)
82
-40°C
81
80
79
3.0
3.2
V
CC
(V)
3.4
50mV/div
3.6
200ps/div
4
_______________________________________________________________________________________
DisplayPort to DVI™/HDMI Level Shifter
Pin Description
PIN
32-PIN
TQFN
1, 3, 8, 18,
22
48-PIN
TQFN
1, 5, 12, 18,
24, 27, 31,
36, 37,43
2, 11, 15,
21, 26, 33,
40, 46
3, 4, 6, 10,
34, 35
7
8
9
13
14
16
17
19
20
22
23
25
28
29
30
32
38
39
41
42
44
45
47
48
—
NAME
FUNCTION
MAX9406
GND
Ground
2, 7, 24
V
CC
Power-Supply Input. Bypass V
CC
to GND with 0.1µF and 0.01µF capacitors as close to
the supply pins as possible.
No Connection. Not internally connected; leave unconnected.
Hot-Plug Detection at 3.3V Logic
Serial Data Line. I
2
C data line at 3.3V logic.
Serial Clock Line. I
2
C clock line at 3.3V logic.
Differential Output Port 4+
Differential Output Port 4-
Differential Output Port 3+
Differential Output Port 3-
Differential Output Port 2+
Differential Output Port 2-
Differential Output Port 1+
Differential Output Port 1-
Output Enable. Drive
OE
low to enable the outputs. Drive
OE
high to disable the outputs.
Serial Clock Line. I
2
C clock line at 5V logic.
Serial Data Line. I
2
C data line at 5V logic.
Hot-Plug Detection at +5V Logic
DDC Link Enable
Differential Input Port 1-
Differential Input Port 1+
Differential Input Port 2-
Differential Input Port 2+
Differential Input Port 3-
Differential Input Port 3+
Differential Input Port 4-
Differential Input Port 4+
Exposed Paddle. Connect EP to ground.
—
4
5
6
9
10
11
12
13
14
15
16
17
19
20
21
23
25
26
27
28
29
30
31
32
—
N.C.
HPD_SRC
SDA_SRC
SCL_SRC
OUT_D4+
OUT_D4-
OUT_D3+
OUT_D3-
OUT_D2+
OUT_D2-
OUT_D1+
OUT_D1-
OE
SCL_SNK
SDA_SNK
HPD_SNK
DDC_EN
IN_D1-
IN_D1+
IN_D2-
IN_D2+
IN_D3-
IN_D3+
IN_D4-
IN_D4+
EP
_______________________________________________________________________________________
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
