MAX9209_0710 Datasheet, PDF (1/21 Pages) Maxim Integrated Products – Programmable DC-Balanced 21-Bit Serializers

19-2828; Rev 4; 10/07
Programmable DC-Balanced
21-Bit Serializers
General Description
The MAX9209/MAX9213 serialize 21 bits of LVTTL/
LVCMOS parallel input data to three LVDS outputs. A
parallel rate clock on a fourth LVDS output provides
timing for deserialization.
The MAX9209/MAX9213 feature programmable DC bal-
ance, which allows isolation between the serializer and
deserializer using AC-coupling. The DC balance circuits
on each channel code the data, limiting the imbalance
of transmitted ones and zeros to a defined range. The
companion MAX9210/MAX9214 deserializers decode
the data. When DC balance is not programmed, the
serializers are compatible with non-DC-balanced, 21-bit
serializers such as the DS90CR215 and DS90CR217.
Two frequency ranges and two DC-balance default
conditions are available for maximum replacement flexi-
bility and compatibility with existing non-DC-balanced
serializers.
The MAX9209/MAX9213 are available in TSSOP and
space-saving thin QFN packages.
Applications
Automotive Navigation Systems
Automotive DVD Entertainment Systems
Digital Copiers
Laser Printers
Functional Diagram
MAX9209
MAX9213
LVDS DRIVER 0
TxOUT0+
TxIN 0 - 20
21
TIMING
CONTROL
PARALLEL-TO- _{LVDS DRIVER 1}
SERIAL
TxOUT0-
TxOUT1+
CONVERTER
DCB/NC
AND
DC-BALANCE
TxOUT1-
LOGIC
LVDS DRIVER 2
TxOUT2+
TxCLK IN
PLL
7X OR 9X
CLOCK
GENERATOR
LVDS CLK
TxOUT2-
TxCLK OUT+
TxCLK OUT-
Features
♦ Programmable DC-Balanced or Non-DC-Balanced
Operation
♦ DC Balance Allows AC-Coupling for Ground-Shift
Tolerance
♦ As Low as 8MHz Operation
♦ Pin Compatible with DS90CR215 and DS90CR217
in Non-DC-Balanced Mode
♦ Integrated 110Ω (DC-Balanced) and 410Ω (Non-
DC-Balanced) Output Resistors
♦ 5V Tolerant LVTTL/LVCMOS Data Inputs
♦ PLL Requires No External Components
♦ Up to 1.785Gbps Throughput
♦ LVDS Outputs Meet IEC 61000-4-2 and ISO 10605
Requirements
♦ LVDS Outputs Conform to ANSI TIA/EIA-644
LVDS Standard
♦ Low-Profile 48-Lead TSSOP and Space-Saving
QFN Packages
♦ -40°C to +85°C Operating Temperature Range
♦ +3.3V Supply
Ordering Information
PART
MAX9209ETM*
MAX9209EUM
MAX9209GUM
MAX9213ETM
MAX9213EUM
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +105°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
48 Thin QFN-EP**
48 TSSOP
48 TSSOP
48 Thin QFN-EP**
48 TSSOP
*Future product—contact factory for availability.
**EP = Exposed pad.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.