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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9249 Datasheet

(MAX9248 - MAX9250) 2.5MHz to 42MHz DC-Balanced LVDS Deserializers

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EVALUATION KIT AVAILABLE
MAX9248/MAX9250
27-Bit, 2.5MHz to 42MHz
DC-Balanced LVDS Deserializers
General Description
The MAX9248/MAX9250 digital video serial-to-parallel
converters deserialize a total of 27 bits during data and
control phases. In the data phase, the LVDS serial input is
converted to 18 bits of parallel video data and in the con-
trol phase, the input is converted to 9 bits of parallel con-
trol data. The separate video and control phases take
advantage of video timing to reduce the serial-data rate.
The MAX9248/MAX9250 pair with the MAX9247 serializer
to form a complete digital video transmission system. For
operating frequencies less than 35MHz, the MAX9248/
MAX9250 can also pair with the MAX9217 serializer.
The MAX9248 features spread-spectrum capability,
allowing output data and clock to spread over a speci-
fied frequency range to reduce EMI. The data and
clock outputs are programmable for a spectrum spread
of ±4% or ±2%. The MAX9250 features output enable
input control to allow data busing.
Proprietary data decoding reduces EMI and provides
DC balance. The DC balance allows AC-coupling, pro-
viding isolation between the transmitting and receiving
ends of the interface. The MAX9248/MAX9250 feature a
selectable rising or falling output latch edge.
ESD tolerance is specified for ISO 10605 with ±10kV
Contact Discharge and ±30kV Air-Gap Discharge.
The MAX9248/MAX9250 operate from a +3.3V ±10%
core supply and feature a separate output supply for
interfacing to 1.8V to 3.3V logic-level inputs. These
devices are available in a 48-lead LQFP package and
are specified from -40°C to +85°C or -40°C to +105°C.
Features
o Programmable ±4% or ±2% Spread-Spectrum
Output for Reduced EMI (MAX9248)
o Proprietary Data Decoding for DC Balance and
Reduced EMI
o Control Data Deserialized During Video Blanking
o Five Control Data Inputs are Single-Bit-Error
Tolerant
o Output Transition Time is Scaled to Operating
Frequency for Reduced EMI
o Staggered Output Switching Reduces EMI
o Output Enable Allows Busing of Outputs
(MAX9250)
o Clock Pulse Stretch on Lock
o Wide ±2% Reference Clock Tolerance
o Synchronizes to MAX9247 Serializer Without
External Control
o ISO 10605 and IEC 61000-4-2 Level 4
ESD Protection
o Separate Output Supply Allows Interface to 1.8V
to 3.3V Logic
o +3.3V Core Power Supply
o Space-Saving LQFP Package
o -40°C to +85°C and -40°C to +105°C Operating
Temperature Ranges
Applications
Navigation System Displays
In-Vehicle Entertainment Systems
Video Cameras
LCD Displays
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9248ECM+
-40°C to +85°C
48 LQFP
MAX9248ECM/V+ -40°C to +85°C
48 LQFP
MAX9248GCM+ -40°C to +105°C
48 LQFP
MAX9248GCM/V+ -40°C to +105°C
48 LQFP
MAX9250ECM+
-40°C to +85°C
48 LQFP
MAX9250ECM/V+ -40°C to +85°C
48 LQFP
MAX9250GCM+ -40°C to +105°C
48 LQFP
MAX9250GCM/V+ -40°C to +105°C
48 LQFP
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-3943; Rev 4; 7/14


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9249 Datasheet

(MAX9248 - MAX9250) 2.5MHz to 42MHz DC-Balanced LVDS Deserializers

No Preview Available !

MAX9248/MAX9250
27-Bit, 2.5MHz to 42MHz
DC-Balanced LVDS Deserializers
ABSOLUTE MAXIMUM RATINGS
VCC_ to _GND........................................................-0.5V to +4.0V
Any Ground to Any Ground...................................-0.5V to +0.5V
IN+, IN- to LVDSGND............................................-0.5V to +4.0V
IN+, IN- Short Circuit to LVDSGND or VCCLVDS ........Continuous
(R/F, OUTEN, RNG_, REFCLK, SS
PWRDWN) to GND................................. -0.5V to (VCC + 0.5V)
(RGB_OUT[17:0], CNTL_OUT[8:0], DE_OUT, PCLK_OUT,
LOCK) to VCCOGND .............................-0.5V to (VCCO + 0.5V)
Continuous Power Dissipation (TA = +70°C)
48-Lead LQFP (derate 21.7mW/°C above +70°C).....1739mW
ESD Protection
Machine Model (RD = 0Ω, CS = 200pF)
All Pins to GND............................................................±200V
Human Body Model (RD = 1.5kΩ, CS = 100pF)
All Pins to GND..............................................................±2kV
ISO 10605 (RD = 2kΩ, CS = 330pF)
Contact Discharge (IN+, IN-) to GND ............................±10kV
Air-Gap Discharge (IN+, IN-) to GND ............................±30kV
IEC 61000-4-2 (RD = 330Ω, CS = 150pF)
Contact Discharge (IN+, IN-) to GND ............................±10kV
Air-Gap Discharge (IN+, IN-) to GND ............................±15kV
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
(VCC_ = +3.0V to +3.6V, PWRDWN = high, differential input voltage VID= 0.05V to 1.2V, input common-mode voltage VCM = VID / 2
to VCC - VID / 2, TA = -40°C to +105°C, unless otherwise noted. Typical values are at VCC_ = +3.3V, VID= 0.2V, VCM = 1.2V,
TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
SINGLE-ENDED INPUTS (R/F, OUTEN, RNG0, RNG1, REFCLK, PWRDWN, SS)
High-Level Input Voltage
Low-Level Input Voltage
VIH
VIL
2.0 VCC + 0.3
-0.3 +0.8
Input Current
VIN = -0.3V to 0 (MAX9248/
IIN
MAX9250ECM),
PWRDWN =
high or low
VIN = -0.15V to 0 (MAX9248/
MAX9250GCM),
-100
+20
VIN = 0 to (VCC + 0.3V)
-20
Input Clamp Voltage
VCL ICL = -18mA
SINGLE-ENDED OUTPUTS (RGB_OUT[17:0], CNTL_OUT[8:0], DE_OUT, PCLK_OUT, LOCK)
+20
-1.5
High-Level Output Voltage
Low-Level Output Voltage
IOH = -100µA
VOH IOH = -2mA, RNG1 = high
IOH = -2mA, RNG1 = low
IOL = 100µA
VOL IOL = 2mA, RNG1 = high
IOL = 2mA, RNG1 = low
VCCO - 0.1
VCCO - 0.35
VCCO - 0.4
0.1
0.3
0.35
High-Impedance Output Current
IOZ
PWRDWN = low or OUTEN = low,
VO = -0.3V to (VCCO + 0.3V)
-10
+10
Output Short-Circuit Current
IOS
RNG1 = high, VO = 0
RNG1 = low, VO = 0
-10 -50
-7 -40
UNITS
V
V
µA
V
V
V
µA
mA
2 Maxim Integrated


Part Number MAX9249
Description (MAX9248 - MAX9250) 2.5MHz to 42MHz DC-Balanced LVDS Deserializers
Maker Maxim Integrated Products
Total Page 20 Pages
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