MAX9234, MAX9236, MAX9238 Hot-Swappable, 21-Bit, DC-Balanced LVDS Deserializers

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The MAX9234/MAX9236/MAX9238 deserialize three LVDS serial-data inputs into 21 single-ended LVCMOS/LVTTL outputs. A parallel-rate LVDS clock received with the LVDS data streams provides timing for deserialization. The outputs have a separate supply, allowing 1.8V to 5V output logic levels. All these devices are hot-swappable and allow "on-the-fly" frequency programming.

The MAX9234/MAX9236/MAX9238 feature DC balance, which allows isolation between a serializer and deserializer using AC-coupling. Each deserializer decodes data transmitted by one of the MAX9209/MAX9211/MAX9213/MAX9215 serializers.

The MAX9234 has a rising-edge output strobe. The MAX9236/MAX9238 have a falling-edge output strobe. The MAX9234/MAX9236/MAX9238 operate in DC-balanced mode only.

The MAX9234/MAX9236 operate with a parallel input clock of 8MHz to 34MHz, while the MAX9238 operates from 16MHz to 66MHz. The transition time of the single-ended outputs is increased on the low-frequency version parts (MAX9234/MAX9236) for reduced EMI. The LVDS inputs meet ISO 10605 ESD specification, ±25kV for Air-Gap Discharge and ±8kV Contact Discharge.

The MAX9234/MAX9236/MAX9238 are available in 48-pin TSSOP packages and operate over the -40°C to +85°C temperature range.

Key Features

Applications/Uses

DC Balance Allows AC-Coupling for Wider Input Common-Mode Voltage Range
On-the-Fly Frequency Programming
Operating Frequency Range
- 8MHz to 34MHz (MAX9234/MAX9236)
- 16MHz to 66MHz (MAX9238)
Falling-Edge Output Strobe (MAX9236/MAX9238)
Slower Output Transitions for Reduced EMI (MAX9234/MAX9236)
High-Impedance Outputs when Active-Low PWRDWN Is Low Allow Output Busing
5V-Tolerant Active-Low PWRDWN Input
PLL Requires No External Components
Up to 1.386Gbps Throughput
Separate Output Supply Pins Allow Interface to 1.8V, 2.5V, 3.3V, and 5V Logic
LVDS Inputs Meet ISO 10605 ESD Requirements
LVDS Inputs Conform to ANSI TIA/EIA-644 LVDS Standard
Low-Profile, 48-Lead TSSOP Package
+3.3V Main Power Supply
-40°C to +85°C Operating Temperature Range

	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)

Propagation Delay (max) (ps)

Supply Voltage (V)

Output Transition Time (max) (ps)

ESD Protection (±kV)

RoHS Available

Industry Qualified

Package

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

Price^*

MAX9234

•	DC Balanced

•	Standalone Deserializer

LVDS

LVCMOS

•	Deserializer

714

8100

3.3

6,240

Yes

Automotive - AECQ100
Automotive - General

TSSOP/48

102

$3.90 @ 1k

MAX9236

714

6,240

$3.90 @ 1k

MAX9238

1368

3,900

$6.10 @ 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.