MAX9224ETI+ Datasheet MAX9224ETI+, MAX9224ETI+T, MAX9223ETI+ | P1-P3

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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.

Applications

Cell Phones

LCDs

Digital Cameras

Features

♦ Ideal for Serializing Cell Phone LCD or Imager

Parallel Interface

♦ MAX9223 Serializes 18-Bit RGB, VSYNC, HSYNC,

and Two Control Signals

♦ LCDS Rejects Common-Mode Noise

♦ Automatic Location of Word Boundary After Signal

Interruption

♦ Power-Down Control Through the Serial Link

♦ Power-Down Supply Current

0.5µA (max)—MAX9223

3.0µA (max)—MAX9224

♦ +2.375V to +3.465V Core Supply Voltage

♦ Parallel I/O Interfaces Directly to 1.8V to 3.3V Logic

♦ ±15kV Human Body Model ESD Protection

♦ -40°C to +85°C Operating Temperature Range

MAX9223/MAX9224

22-Bit, Low-Power, 5MHz to 10MHz

Serializer and Deserializer Chipsets

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3861; Rev 1; 12/07

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX9223ETI

-40°C to +85°C 28 TQFN-EP*

T2844-1

MAX9223ETI+

-40°C to +85°C 28 TQFN-EP*

T2844-1

MAX9224ETI

-40°C to +85°C 28 TQFN-EP*

T2844-1

MAX9224ETI+

-40°C to +85°C 28 TQFN-EP*

T2844-1

EVALUATION KIT

AVAILABLE

+Denotes lead-free package.

*EP = Exposed paddle.

Typical Application Circuit

TIMING

AND

CONTROL

PARALLEL

SERIAL

PARALLEL

DATA OUT

TIMING AND CONTROL

OUTPUT

LATCH

PIXEL

CLOCK OUT

DLL

LCDS

POWER-DOWN

CONTROL

SERIAL

PARALLEL

DATA IN

PIXEL

CLOCK IN

LATCH

INPUT

MAX9223 MAX9224

Pin Configurations appear at end of data sheet.

MAX9223/MAX9224

22-Bit, Low-Power, 5MHz to 10MHz

Serializer and Deserializer Chipset

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS—MAX9223

= +2.375V to +3.465V, T

= -40°C to +85°C, unless otherwise noted. Typical values are at V

= +2.5V, T

= +25°C.) (Notes 1, 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

to GND...........................................................-0.5V to +4.0V

DDO

to GND.........................................................-0.5V to +4.0V

Serial Interface (SDO+, SDO-, SDI+,

SDI-) to GND .....................................................-0.5V to +4.0V

Single-Ended Inputs (DIN_, PCLKIN,

PWRDN) to GND ....................................-0.5V to (V

+ 0.5V)

Single-Ended Outputs (DOUT_,

PCLKOUT) to GND ..............................-0.5V to (V

DDO

+ 0.5V)

Continuous Power Dissipation (T

= +70°C)

28-Pin TQFN (4mm x 4mm x 0.8mm)

Multilayer PCB (derate 28.6mW/°C

above +70°C).............................................................2286mW

Single-Layer PCB (derate 20.8mW/°C

above +70°C).............................................................1667mW

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

ESD Protection (Human Body Model)

SDO+, SDO-, SDI+, SDI- to GND ...............................> ±15kV

All Other Pins ................................................................> ±2kV

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SINGLE-ENDED INPUTS (PCLKIN, DIN_, PWRDN)

High-Level Input Voltage V

1.19 V

+ 0.3

Low-Level Input Voltage V

-0.3

+0.3

= 0V to V

-20 +20

-0.3V ≤ V

< 0VInput Current I

< V

≤ (V

+ 0.3V)

-100 +100

µA

LCDS OUTPUT (SDO+, SDO-)

ODH

High level 600 643 880

Differential Output Current (Note 3)

ODL

Low level 200 229 300

µA

Output Short-Circuit Current I

Shorted to 0V or V

880 µA

POWER SUPPLY

PCLKIN = 5MHz

(110Mbps)

4.4 8.2

Supply Current I

= 2.5V,

DIN_ = all low or

all high

PCLKIN = 10MHz

(220Mbps)

5.6 8.2

PCLKIN = 5MHz

(110Mbps)

4.1

10.6

Worst-Case Pattern Supply Current

DDW

= 2.5V,

Figure 1

PCLKIN = 10MHz

(220Mbps)

5.4

10.6

Power-Down Supply Current I

DDZ

All inputs = low 0.5 µA

MAX9223/MAX9224

22-Bit, Low-Power, 5MHz to 10MHz

Serializer and Deserializer Chipset

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS—MAX9224

= +2.375V to +3.465V, V

DDO

= +1.71V to +3.465V, T

= -40°C to +85°C, unless otherwise noted. Typical values are at V

DDO

= +2.5V, T

= +25°C.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SINGLE-ENDED OUTPUTS (PCLKOUT, DOUT_)

High-Level Output Voltage V

DDO

= +2.375V to +3.465V, I

= -1mA

0.8 x V

DDO

Low-Level Output Voltage V

DDO

= +2.375V to +3.465V, I

= 1mA 0.2 V

DDO

= 2.375V -2

DDO

= 3.135V -9

Output Short-Circuit Current I

Output shorted

to ground

DDO

= 3.465V -25

LCDS INPUT (SDI+, SDI-)

Differential Input-Current Threshold

400 µA

Common-Mode Input Current I

-300 ±500 +300

µA

= 0µA at V

= 3.3V ±5% 69 90 109

= 0µA at V

= 2.8V ±5% 82 108 132

= 0µA at V

= 2.5V ±5% 95 125 153

= ±300µA at V

= 3.3V ±5% 67 91 112

Differential Input Impedance Z

= ±300µA at V

= 2.8V ±5% 86 108 136

Common-Mode Input Impedance Z

= ±300µA 90 167 375 Ω

Input Capacitance C

SDI+ or SDI- to ground 2 pF

POWER SUPPLY

PCLKOUT = 5MHz

(110Mbps)

912

Supply Current (Note 4) I

TOT

= V

DDO

= 2.5V

DOUT_ = all high or

all low

PCLKOUT = 10MHz

(220Mbps)

912

PCLKOUT = 5MHz

(110Mbps)

10 12

Worst-Case Pattern

Supply Current (Note 4)

TOTW

= 5pF, V

DDO

= 2.5V,

Figure 2

PCLKOUT = 10MHz

(220Mbps)

10 12

Power-Down Supply Current

(Note 4)

TOTZ

0.08

3µA

Supply Difference V

MAX9223 V

to MAX9224 V

-5 +5 %

GROUND POTENTIAL

Ground Difference V

MAX9223 to MAX9224 ground difference -0.2

+0.2

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15

MAX9224ETI+

Mfr. #:

Buy MAX9224ETI+

Manufacturer:

Maxim Integrated

Description:

Serializers & Deserializers - Serdes 22-Bit, Low-Power, 5MHz to 10MHz Serializer and Deserializer Chipsets

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MAX9224ETI+

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