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MAX9247GCM/V+TGB

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
General Description
The MAX9247 digital video parallel-to-serial converter
serializes 27 bits of parallel data into a serial-data stream.
Eighteen bits of video data and 9 bits of control data are
encoded and multiplexed onto the serial interface, reduc-
ing the serial-data rate. The data-enable input determines
when the video or control data is serialized.
The MAX9247 pairs with the MAX9248/MAX9250 dese-
rializers to form a complete digital video serial link.
Interconnect can be controlled-impedance PCB traces or
twisted-pair cable. Proprietary data encoding reduces
EMI and provides DC balance. DC balance allows AC-
coupling, providing isolation between the transmitting
and receiving ends of the interface. The LVDS output is
internally terminated with 100Ω. For operating frequen-
cies less than 35MHz, the MAX9247 can also pair with
the MAX9218 deserializer.
ESD tolerance is specified for ISO 10605 with ±10kV
Contact Discharge and ±30kV Air-Gap Discharge.
The MAX9247 operates from a +3.3V core supply and
features a separate input supply for interfacing to 1.8V
to 3.3V logic levels. This device is available in a 48-lead
LQFP package and is specified from -40°C to +85°C or
-40°C to +105°C.
Applications
Navigation System Displays
In-Vehicle Entertainment Systems
Video Cameras
LCDs
Features
o Preemphasis Improves Eye Diagram and Signal
Integrity at the Output
o Proprietary Data Encoding for DC Balance and
Reduced EMI
o Control Data Sent During Video Blanking
o Five Control Data Inputs are Single-Bit-Error
Tolerant
o Programmable Phase-Shifted LVDS Signaling
Reduces EMI
o Output Common-Mode Filter Reduces EMI
o Greater Than 10m STP Cable Drive
o Wide ±2% Reference Clock Tolerance
o ISO 10605 and IEC 61000-4-2 Level 4
ESD Protection
o Separate Input Supply Allows Interface to 1.8V
to 3.3V Logic
o +3.3V Core Supply
o Space-Saving LQFP Package
o -40°C to +85°C and -40°C to +105°C Operating
Temperature Ranges
MAX9247
________________________________________________________________
Maxim Integrated Products
1
RNG0
RNG1
V
CCLVDS
OUT+
OUT-
LVDSGND
LVDSGND
CMF
PWRDWN
V
CCPLL
PLLGND
PRE
GND
V
CCIN
RGB_IN10
RGB_IN11
RGB_IN12
RGB_IN13
RGB_IN14
RGB_IN15
RGB_IN16
RGB_IN17
CNTL_IN0
CNTL_IN1
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
GND
V
CC
CNTL_IN2
CNTL_IN3
CNTL_IN4
CNTL_IN5
CNTL_IN6
CNTL_IN7
CNTL_IN8
DE_IN
PCLK_IN
I.C.
LQFP
+
MAX9247
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
RGB_IN9
RGB_IN8
RGB_IN7
RGB_IN6
RGB_IN5
RGB_IN4
RGB_IN3
RGB_IN2
RGB_IN1
RGB_IN0
V
CC
GND
TOP VIEW
PART TEMP RANGE PIN-PACKAGE
MAX9247ECM+ -40°C to +85°C 48 LQFP
MAX9247ECM/V+ -40°C to +85°C 48 LQFP
MAX9247GCM+ -40°C to +105°C 48 LQFP
MAX9247GCM/V+ -40°C to +105°C 48 LQFP
Pin Configuration
Ordering Information
19-3955; Rev 4; 4/12
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
+
Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
27-Bit, 2.5MHz-to-42MHz
DC-Balanced LVDS Serializer
MAX9247
27-Bit, 2.5MHz-to-42MHz
DC-Balanced LVDS Serializer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC_
= +3.0V to +3.6V, R
L
= 100Ω ±1%, PWRDWN = high, PRE = low, T
A
= -40°C to +105°C, unless otherwise noted. Typical
values are at V
CC_
= +3.3V, T
A
= +25°C.) (Notes 1, 2)
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.
V
CC_
to _GND........................................................-0.5V to +4.0V
Any Ground to Any Ground...................................-0.5V to +0.5V
OUT+, OUT-, CMF to LVDSGND...........................-0.5V to +4.0V
OUT+, OUT- Short Circuit to LVDSGND
or V
CCLVDS
.............................................................Continuous
OUT+, OUT- Short Through 0.125µF (or smaller),
25V Series Capacitor..........................................-0.5V to +16V
RGB_IN[17:0], CNTL_IN[8:0], DE_IN,
RNG0, RNG1, PRE, PCLK_IN,
PWRDWN to GND ...............................-0.5V to (V
CCIN
+ 0.5V)
Continuous Power Dissipation (T
A
= +70°C)
48-Lead LQFP (derate 20.8mW/°C above +70°C)....1666.7mW
ESD Protection
Machine Model (R
D
= 0Ω, C
S
= 200pF)
All Pins to GND ..............................................................±200V
Human Body Model (R
D
= 1.5kΩ, C
S
= 100pF)
All Pins to GND ................................................................±3kV
ISO 10605 (R
D
= 2kΩ, C
S
= 330pF)
Contact Discharge (OUT+, OUT-) to LVDSGND ...........±10kV
Air-Gap Discharge (OUT+, OUT-) to LVDSGND ...........±30kV
IEC 61000-4-2 (R
D
= 330Ω, C
S
= 150pF)
Contact Discharge (OUT+, OUT-) to LVDSGND ...........±10kV
Air-Gap Discharge (OUT+, OUT-) to LVDSGND ...........±15kV
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering,10s)..................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SINGLE-ENDED INPUTS (RGB_IN[17:0], CNTL_IN[8:0], DE_IN, PCLK_IN, PWRDWN, RNG_, PRE)
V
CCIN
= 1.71V to < 3V (Note 3) 0.65 x V
CCIN
V
CCIN
+ 0.3
High-Level Input Voltage V
IH
V
CCIN
= 3.0V to 3.6V 2 0.3 + V
CCIN
V
V
CCIN
= 1.71V to < 3V (Note 3) -0.3 0.3 x V
CCIN
Low-Level Input Voltage V
IL
V
CCIN
= 3.0V to 3.6V -0.3 +0.8
V
V
IN
= -0.3V to 0V
(MAX9247ECM),
V
IN
= -0.15V to 0V
(MAX9247GCM)
-100 +20
Input Current I
IN
V
CCIN
= 1.71V
to 3.6V,
PWRDWN =
high or low
V
IN
= 0V to ( V
C C IN
+ 0.3V) -20 +20
µA
Input Clamp Voltage V
CL
I
CL
= -18mA -1.5 V
LVDS OUTPUTS (OUT+, OUT-)
Differential Output Voltage V
OD
Figure 1 250 335 450 mV
Change in V
OD
Between
Complementary Output States
∆V
OD
Figure 1 20 mV
Common-Mode Voltage V
OS
Figure 1 1.125 1.29 1.475 V
Change in V
OS
Between
Complementary Output States
∆V
OS
Figure 1 20 mV
Output Short-Circuit Current I
OS
V
OUT+
or V
OUT-
= 0V or 3.6V -15 ±8 +15 mA
Magnitude of Differential
Output Short-Circuit Current
I
OSD
V
OD
= 0V 5.5 15 mA
V
OUT+
= 0V,
V
OUT-
= 3.6V
Output High-Impedance
Current
I
OZ
PWRDWN = low
or V
CC_
= 0V
V
OU T +
= 3.6V ,
V
OUT-
= 0V
-1 +1 µA
MAX9247
27-Bit, 2.5MHz-to-42MHz
DC-Balanced LVDS Serializer
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(V
CC_
= +3.0V to +3.6V, R
L
= 100Ω ±1%, C
L
= 5pF, PWRDWN = high, PRE = low, T
A
= -40°C to +105°C, unless otherwise noted.
Typical values are at V
CC_
= +3.3V, T
A
= +25°C.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
PCLK_IN TIMING REQUIREMENTS
MAX9247ECM 23.8 400.0
Clock Period t
T
Figure 2
MAX9247GCM 28.6 400.0
ns
MAX9247ECM 2.5 42.0
Clock Frequency f
CLK
MAX9247GCM 2.5 35.0
MHz
Clock Frequency Difference from
Deserializer Reference Clock
∆f
CLK
-2 +2 %
Clock Duty Cycle DC t
HIGH
/t
T
or t
LOW
/t
T
,
Figure 2 35 50 65 %
Clock Transition Time t
R
, t
F
Figure 2 2.5 ns
SWITCHING CHARACTERISTICS
PRE = low 280 370
Output Rise Time t
RISE
20% to 80%,
V
OD
≥ 250mV, Figure 3
PRE = high 240 320
ps
PRE = low 280 370
Output Fall Time t
FALL
80% to 20%,
V
OD
≥ 250mV, Figure 3
PRE = high 240 320
ps
Input Setup Time t
SET
Figure 4 3 ns
Input Hold Time t
HOLD
Figure 4 3 ns
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC_
= +3.0V to +3.6V, R
L
= 100Ω ±1%, PWRDWN = high, PRE = low, T
A
= -40°C to +105°C, unless otherwise noted. Typical
values are at V
CC_
= +3.3V, T
A
= +25°C.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential Output Resistance R
O
78 110 147 Ω
PRE = 0 15 25
2.5MHz
PRE = 1 27
PRE = 0 18 25
5MHz
PRE = 1 27
PRE = 0 23 28
10MHz
PRE = 1 30
PRE = 0 33 39
20MHz
PRE = 1 42
PRE = 0 50 65
35MHz
PRE = 1 69
PRE = 0 60 70
Worst-Case Supply Current
I
CCW
R
L
= 100Ω ±1%,
C
L
= 5pF,
continuous 10
transition words
42MHz
PRE = 1 75
mA
Power-Down Supply Current I
CCZ
(Note 4) 50 µA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX9247GCM/V+TGB

Mfr. #:
Buy MAX9247GCM/V+TGB
Manufacturer:
Maxim Integrated
Description:
Serializers & Deserializers - Serdes 27B 2.5-42MHz DC- Balncd LVDS Serilz
Lifecycle:
New from this manufacturer.
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