MAX9223 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – 22-Bit, Low-Power, 5MHz to 10MHz Serializer and Deserializer Chipsets

19-3861; Rev 0; 10/05
22-Bit, Low-Power, 5MHz to 10MHz
Serializer and Deserializer Chipsets
General Description
The MAX9223/MAX9224 serializer/deserializer chipsets
reduce wiring by serializing 22 bits onto a single differen-
tial pair. 22 bits are serialized in each cycle of the paral-
lel input clock resulting in a 110Mbps to 220Mbps net
serial-data rate ideal for cell phone QVGA and QCIF dis-
plays. The MAX9223 serializes the 18-bit RGB, VSYNC,
HSYNC, and two control signals from the baseband
processor to reduce wiring through the hinge to the LCD
controller. The 2-wire serial interface uses low-current dif-
ferential signaling (LCDS) for low EMI, high common-
mode noise immunity, and ground-shift tolerance. The
MAX9223/MAX9224 automatically identify the word
boundary in serial data in case of signal interruption. The
MAX9224 power-down is controlled by the MAX9223.
The MAX9223 and MAX9224 consume 3.5µA or less in
power-down mode.
The MAX9223 serializer operates from a single +2.375V
to +3.465V supply and accepts +1.71V to +3.465V
inputs. The MAX9224 deserializer operates from a
+2.375V to +3.465V core supply and has a separate
output buffer supply (V_DDO), allowing +1.71V to
+3.465V output high levels.
The MAX9223/MAX9224 are specified over the -40°C to
+85°C extended temperature range and are available
in 28-pin TQFN (4mm x 4mm x 0.8mm) packages with
an exposed paddle.
Cell Phones
LCDs
Digital Cameras
Applications
Features
o Ideal for Serializing Cell Phone LCD or Imager
Parallel Interface
o MAX9223 Serializes 18-Bit RGB, VSYNC, HSYNC,
and Two Control Signals
o LCDS Rejects Common-Mode Noise
o Automatic Location of Word Boundary After Signal
Interruption
o Power-Down Control Through the Serial Link
o Power-Down Supply Current
0.5µA (max)—MAX9223
3.0µA (max)—MAX9224
o +2.375V to +3.465V Core Supply Voltage
o Parallel I/O Interfaces Directly to 1.8V to 3.3V Logic
o ±15kV Human Body Model ESD Protection
o -40°C to +85°C Operating Temperature Range
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX9223ETI
MAX9223ETI+
MAX9224ETI
MAX9224ETI+
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
28 TQFN-EP*
28 TQFN-EP*
28 TQFN-EP*
28 TQFN-EP*
T2844-1
T2844-1
T2844-1
T2844-1
+Denotes lead-free package.
*EP = Exposed paddle.
Pin Configurations appear at end of data sheet.
Typical Application Circuit
PARALLEL
DATA IN
LATCH
INPUT
PARALLEL
TO
SERIAL
LCDS
SERIAL
TO
PARALLEL
OUTPUT
LATCH
PARALLEL
DATA OUT
PIXEL
CLOCK IN
MAX9223
TIMING
AND
CONTROL
DLL
POWER-DOWN
CONTROL
MAX9224
TIMING AND CONTROL
PIXEL
CLOCK OUT
________________________________________________________________ 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.