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MAX9234EUM+TD

P1-P3P4-P6P7-P9P10-P12P13-P15
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
MAX9234/MAX9236/
MAX9238
Hot-Swappable, 21-Bit, DC-Balanced LVDS
Deserializers
General Description
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 deseri-
alizer 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.
Applications
Automotive Navigation Systems
Automotive DVD Entertainment Systems
Digital Copiers
Laser Printers
Features
o DC Balance Allows AC-Coupling for Wider Input
Common-Mode Voltage Range
o On-the-Fly Frequency Programming
o Operating Frequency Range
8MHz to 34MHz (MAX9234/MAX9236)
16MHz to 66MHz (MAX9238)
o Falling-Edge Output Strobe (MAX9236/MAX9238)
o Slower Output Transitions for Reduced EMI
(MAX9234/MAX9236)
o High-Impedance Outputs when PWRDWN Is Low
Allow Output Busing
o 5V-Tolerant PWRDWN Input
o PLL Requires No External Components
o Up to 1.386Gbps Throughput
o Separate Output Supply Pins Allow Interface to
1.8V, 2.5V, 3.3V, and 5V Logic
o LVDS Inputs Meet ISO 10605 ESD Requirements
o LVDS Inputs Conform to ANSI TIA/EIA-644 LVDS
Standard
o Low-Profile, 48-Lead TSSOP Package
o +3.3V Main Power Supply
o -40°C to +85°C Operating Temperature Range
Ordering Information
19-3641; Rev 2; 9/12
Functional Diagram and Pin Configuration appear at end of
data sheet.
PART TEMP RANGE
PIN-
PACKAGE
MAX9234EUM+ -40°C to +85°C 48 TSSOP
MAX9234EUM/V+ -40°C to +85°C 48 TSSOP
MAX9236EUM+ -40°C to +85°C 48 TSSOP
MAX9238EUM+ -40°C to +85°C 48 TSSOP
+
Denotes a lead(Pb)-free/RoHS-compliant package.
/V Denotes an automotive qualified part.
Note: Devices are also available in a tape-and-reel packaging.
Specify tape and reel by adding “T” to the part number when
ordering.
MAX9234/MAX9236/MAX9238
Hot-Swappable, 21-Bit, DC-Balanced LVDS
Deserializers
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, V
CCO
= +3.0V to +5.5V, PWRDWN = high, differential input voltage ⏐V
ID
⏐ = 0.05V to 1.2V, input common-
mode voltage V
CM
= ⏐V
ID
/2⏐ to 2.4V - ⏐V
ID
/2⏐, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= V
CCO
=
+3.3V, ⏐V
ID
⏐ = 0.2V, V
CM
= 1.25V, T
A
= +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.
V
CC
to GND...........................................................-0.5V to +4.0V
V
CCO
to GND.........................................................-0.5V to +6.0V
RxIN_, RxCLK IN_ to GND ....................................-0.5V to +4.0V
PWRDWN to GND....................................................-0.5V to 6.0V
RxOUT_, RxCLK OUT to GND ................-0.5V to (V
CCO
+ 0.5V)
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TSSOP (derate 16mW/°C above +70°C) ....... 1282mW
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
ESD Protection
Human Body Model (R
D
= 1.5kΩ, C
S
= 100pF)
All Pins to GND ..................................………………….±5kV
IEC 61000-4-2 (R
D
= 330Ω, CS = 150pF)
Contact Discharge (RxIN_, RxCLK IN_) to GND .........±8kV
Air-Gap Discharge (RxIN_, RxCLK IN_) to GND .......±15kV
ISO 10605 (R
D
= 2kΩ, C
S
= 330pF)
Contact Discharge (RxIN_, RxCLK IN_) to GND ........±8kV
Air Discharge (RxIN_, RxCLK IN_) to GND ...............±25kV
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SINGLE-ENDED INPUT (PWRDWN)
High-Level Input Voltage V
IH
2.0 5.5 V
Low-Level Input Voltage V
IL
-0.3 +0.8 V
Input Current I
IN
V
IN
= high or low -70 +70 µA
Input Clamp Voltage V
CL
I
CL
= -18mA -1.5 V
SINGLE-ENDED OUTPUTS (RxOUT_, RxCLK OUT)
I
OH
= -100µA
V
CCO
-
0.1
RxCLK OUT
V
CCO
-
0.25
MAX9234/
MAX9236
RxOUT_
V
CCO
-
0.40
High-Level Output Voltage V
OH
I
OH
= -2mA
MAX9238
V
CCO
-
0.25
V
I
OL
= 100µA 0.1
RxCLK OUT 0.2
MAX9234/
MAX9236
RxOUT_ 0.26
Low-Level Output Voltage V
OL
I
OL
= 2mA
MAX9238 0.2
V
High-Impedance Output Current I
OZ
PWRDWN = low,
V
OUT_
= -0.3V to V
CCO
+ 0.3V
-20 +20 µA
RxCLK OUT -10 -40
MAX9234/
MAX9236
RxOUT_ -5 -20
V
CCO
= 3.0V to
3.6V, V
OUT
= 0V
MAX9238 -10 -40
RxCLK OUT -28 -75
MAX9234/
MAX9236
RxOUT_ -14 -37
Output Short-Circuit Current
(Note: Short one output at a
time.)
I
OS
V
CCO
= 4.5V to
5.5V, V
OUT
= 0V
MAX9238 -28 -75
mA
MAX9234/MAX9236/MAX9238
Hot-Swappable, 21-Bit, DC-Balanced LVDS
Deserializers
3
Maxim Integrated
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.6V, V
CCO
= +3.0V to +5.5V, PWRDWN = high, differential input voltage ⏐V
ID
⏐ = 0.05V to 1.2V, input common-
mode voltage V
CM
= ⏐V
ID
/2⏐ to 2.4V - ⏐V
ID
/2⏐, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= V
CCO
=
+3.3V, ⏐V
ID
⏐ = 0.2V, V
CM
= 1.25V, T
A
= +25°C.) (Notes 1, 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LVDS INPUTS
Differential Input-High Threshold V
TH
50 mV
Differential Input-Low Threshold V
TL
-50 mV
Input Current I
IN+
,
I
IN-
PWRDWN = high or low -25 +25 µA
Power-Off Input Current I
INO+
,
I
INO-
V
CC
= V
CCO
= 0V or open,
PWRDWN = 0V or open
-40 +40 µA
PWRDWN = high or low (Figure 1)
Input Resistor 1 R
IN1
V
CC
= V
CCO
= 0V or open (Figure 1)
42 78 kΩ
POWER SUPPLY
8MHz 42
16MHz 57
MAX9234/
MAX9236
34MHz 98
16MHz 63
34MHz 106
Worst-Case Supply Current I
CCW
C
L
= 8pF,
worst-case
pattern; V
CC
=
V
CCO
= 3.0V to
3.6V, Figure 2
MAX9238
66MHz 177
mA
Power-Down Supply Current I
CCZ
PWRDWN = low 50 µA
P1-P3P4-P6P7-P9P10-P12P13-P15

MAX9234EUM+TD

Mfr. #:
Buy MAX9234EUM+TD
Manufacturer:
Maxim Integrated
Description:
Serializers & Deserializers - Serdes 21-Bit DC-Balanced LVDS Deserializer
Lifecycle:
New from this manufacturer.
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