19-2828; Rev 1; 7/03
Programmable DC-Balanced
21-Bit Serializers
General Description
Features
The MAX9209/MAX9211/MAX9213/MAX9215 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.
ꢀ Programmable DC-Balanced or Non-DC-Balanced
Operation
ꢀ DC Balance Allows AC-Coupling for Ground-Shift
Tolerance
The MAX9209/MAX9211/MAX9213/MAX9215 feature
programmable DC balance, which allows isolation
between the serializer and deserializer using AC-cou-
pling. 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/
MAX9212/MAX9214/MAX9216 deserializers decode the
data. When DC balance is not programmed, the serial-
izers are compatible with non-DC-balanced, 21-bit seri-
alizers like the DS90CR215 and DS90CR217.
ꢀ As Low as 8MHz Operation
ꢀ Pin Compatible with DS90CR215 and DS90CR217
in Non-DC-Balanced Mode
ꢀ Integrated 110 (DC-Balanced) and 410 (Non-
DC-Balanced) Output Resistors
ꢀ 5V Tolerant LVTTL/LVCMOS Data Inputs
ꢀ PLL Requires No External Components
ꢀ Up to 1.785Gbps Throughput
Two frequency ranges and two DC-balance default
conditions are available for maximum replacement flexi-
bility and compatibility with existing non-DC-balanced
serializers.
ꢀ LVDS Outputs Meet IEC 61000-4-2 Level 4 ESD
Requirements
ꢀ LVDS Outputs Conform to ANSI TIA/EIA-644
LVDS Standard
The MAX9209/MAX9211/MAX9213/MAX9215 are avail-
able in TSSOP and space-saving thin QFN packages,
and operate from a single +3.3V supply over the -40°C
to +85°C temperature range.
ꢀ Low-Profile 48-Lead TSSOP and Space-Saving
QFN Packages
ꢀ -40 C to +85 C Operating Temperature Range
Applications
ꢀ +3.3V Supply
Automotive Navigation Systems
Automotive DVD Entertainment Systems
Digital Copiers
Laser Printers
Ordering Information
PART
TEMP RANGE
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
PIN-PACKAGE
48 Thin QFN-EP**
48 TSSOP
Functional Diagram
MAX9209ETM*
MAX9209EUM
MAX9211ETM*
MAX9211EUM*
MAX9213ETM*
MAX9213EUM
MAX9215ETM*
MAX9215EUM*
MAX9209
MAX9211
MAX9213
MAX9215
48 Thin QFN-EP**
48 TSSOP
LVDS DRIVER 0
TxOUT0+
48 Thin QFN-EP**
48 TSSOP
TxIN 0 - 20
21
TxOUT0-
TxOUT1+
TIMING
CONTROL
PARALLEL-TO-
SERIAL
CONVERTER
AND
DC-BALANCE
LOGIC
LVDS DRIVER 1
LVDS DRIVER 2
LVDS CLK
48 Thin QFN-EP**
48 TSSOP
DCB/NC
TxOUT1-
TxOUT2+
*Future product—contact factory for availability.
**EP = Exposed pad.
TxOUT2-
TxCLK OUT+
PLL
7X OR 9X
CLOCK
GENERATOR
TxCLK IN
TxCLK OUT-
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.