MAX9242, MAX9244, MAX9246, MAX9254 21-Bit Deserializers with Programmable Spread Spectrum and DC Balance

Description

The MAX9242/MAX9244/MAX9246/MAX9254 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/LVTTL outputs. A separate parallel-rate LVDS clock provides the timing for deserialization. The MAX9242/MAX9244/MAX9246/MAX9254 feature spread-spectrum capability, allowing the output data and clock frequency to spread over a specified range to reduce EMI. The single-ended data and clock outputs are programmable for a frequency spread of ±2%, ±4%, or no spread. The spread-spectrum function is also available when the MAX9242/MAX9244/MAX9246/MAX9254 operate in non-DC-balanced mode. The modulation rate of the spread is 32kHz for a 33MHz LVDS clock input and scales linearly with frequency. The single-ended outputs have a separate supply, allowing +1.8V to +5V output logic levels.

The MAX9254 features high output drive current for both data and clock outputs for faster transition times in the presence of heavy capacitive loads.

The MAX9242/MAX9244/MAX9246/MAX9254 feature programmable DC balance, allowing isolation between a serializer and deserializer using AC-coupling. The MAX9242/MAX9244/MAX9246/MAX9254 operate with the MAX9209/MAX9213 serializers and are available with a rising-edge strobe (MAX9242) or falling-edge strobe (MAX9244/MAX9246/MAX9254). The LVDS inputs meet ISO 10605 ESD specifications with ±30kV Air-Gap Discharge and ±6kV Contact Discharge ratings.

Key Features

Applications/Uses

Programmable ±4%, ±2%, or OFF Spread-Spectrum Output for Reduced EMI
Programmable DC-Balanced or Non-DC-Balanced Modes
DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range
Spread Spectrum Operates in DC-Balanced or Non-DC-Balanced Mode
High Output Drive (MAX9254)
π / 4 Deskew by Oversampling (MAX9242/MAX9244/MAX9254)
16MHz-to-34MHz (DC-Balanced) and 20MHz-to-40MHz (Non-DC-Balanced) Operation (MAX9242/MAX9244/MAX9254)
6MHz-to-18MHz (DC-Balanced) and 8MHz-to-20MHz (Non-DC-Balanced) Operation (MAX9246)
Rising-Edge (MAX9242) or Falling-Edge (MAX9244/MAX9246/MAX9254) Output Strobe
High-Impedance Outputs when Active-Low PWRDWN is Low Allow Output Busing
Separate Output Supply Allows Interface to +1.8V, +2.5V, +3.3V, and +5V Logic
LVDS Inputs Meet ISO 10605 ESD Protection at ±30kV Air-Gap Discharge and ±6kV Contact Discharge
LVDS Inputs Meet IEC 61000-4-2 Level 4 ESD Protection at ±15kV Air-Gap Discharge and ±8kV Contact Discharge
LVDS Inputs Conform to ANSI TIA/EIA-644 Standard
+3.3V Main Power Supply

	Automotive DVD Entertainment Systems
	Automotive Navigation Systems
	Digital Copiers
	Laser Printers

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)

RoHS Available

Industry Qualified

Package

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

Price^**

MAX9242

•	DC Balanced

•	Programmable DC-Balance

•	Programmable Spread Spectrum

•	Standalone Deserializer

LVDS

LVCMOS

•	Deserializer

840

3.3

6,500

See Data Sheet

Automotive - General

TSSOP/48

102

$4.26 @ 1k

MAX9244

840

Yes

Automotive - AECQ100
Automotive - General

$4.26 @ 1k

MAX9246

420

Yes

Automotive - General

$4.26 @ 1k

MAX9254

840

Yes

$4.62 @ 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.

Reliability Reports


		Show FIT data for:

		Reliability Report: MAX9244EUM.pdf

		AEC-Q100 Reliability Report MAX9244EUM.pdf

		Request Reliability Report for:

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-27 of 27

MAX9242

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9242GUM+D

-40°C to +105°C

See data sheet

MAX9242GUM+TD

-40°C to +105°C

See data sheet

MAX9242EUM-TD

-40°C to +85°C

See data sheet

MAX9242EUM-T

-40°C to +85°C

See data sheet

MAX9242EUM

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9242EUM-D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9244

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9244EVKIT+

See data sheet

MAX9244GUM+TD

-40°C to +105°C

See data sheet

MAX9244GUM+D

-40°C to +105°C

See data sheet

MAX9244EUM+TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9244EUM+D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9244EUM-T

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9244EUM-TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9244EUM-D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9244EUM

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9246

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9246GUM+D

-40°C to +105°C

See data sheet

MAX9246EUM+TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9246EUM+D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9246GUM+TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +105°C

See data sheet
Materials Analysis

MAX9246EUM-TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9246EUM-D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9246EUM

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9246EUM-T

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48-1*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9254

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9254EUM+T

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9254EUM+

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9254EUM+D

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9254EUM+TD

TSSOP;48 pin;102 mm²
Dwg: 21-0155C (PDF)
Use pkgcode/variation: U48+1*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis