MAX9248, MAX9250 27-Bit, 2.5MHz to 42MHz DC-Balanced LVDS Deserializers

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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 control phase, the input is converted to 9 bits of parallel control 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 specified 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, providing 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 48-lead TQFP and TQFN packages and are specified from -40°C to +85°C.

Key Features

Applications/Uses

	Programmable ±4% or ±2% Spread-Spectrum Output for Reduced EMI (MAX9248)
	Proprietary Data Decoding for DC Balance and Reduced EMI
	Control Data Deserialized During Video Blanking
	Five Control Data Inputs are Single-Bit-Error Tolerant
	Output Transition Time is Scaled to Operating Frequency for Reduced EMI
	Staggered Output Switching Reduces EMI
	Output Enable Allows Busing of Outputs (MAX9250)
	Clock Pulse Stretch on Lock
	Wide ±2% Reference Clock Tolerance
	Synchronizes to MAX9247 Serializer Without External Control
	ISO 10605 and IEC 61000-4-2 Level 4 ESD Protection
	Separate Output Supply Allows Interface to 1.8V to 3.3V Logic
	+3.3V Core Power Supply
	Space-Saving TQFP and TQFN Packages
	-40°C to +85°C Operating Temperature Range

	In-Vehicle Entertainment Systems
	LCD Displays
	Navigation System Displays
	Video Cameras

Key Specifications: High-Speed Interconnect (Differential Signaling)

Part Number

Features

Rx Signal Type

Tx Signal Type

Functions

Number of Rx

Number of Tx

Data Rates (Mbps)

Supply Voltage (V)

Output Transition Time (max) (ps)

ESD Protection (±kV)

Industry Qualified

Package

Smallest Available Package (max w/pins) (mm²)

RoHS Available

Price^*

MAX9248

•	DC Balanced

•	High-ESD Rating

•	Programmable Spread Spectrum

LVDS

LVCMOS

•	Deserializer

756

3.3

5,200

Automotive - AECQ100
Automotive - General

LQFP/48
THIN QFN/48

Yes

$5.43 @ 1k

MAX9250

•	DC Balanced

•	High-ESD Rating

LQFP/48

$5.03 @ 1k

See All High-Speed Interconnect (Differential Signaling) (131)

Notes:
^*This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.