General Description
The MAX9392/MAX9393 dual 2 x 2 crosspoint switches
perform high-speed, low-power, and low-noise signal
distribution. The MAX9392/MAX9393 multiplex one of two
differential input pairs to either or both low-voltage differ-
ential signaling (LVDS) outputs for each channel.
Independent enable inputs turn on or turn off each differ-
ential output pair.
Four LVCMOS/LVTTL logic inputs (two per channel) con-
trol the internal connections between inputs and outputs.
This flexibility allows for the following configurations: 2 x 2
crosspoint switch, 2:1 mux, 1:2 splitter, or dual repeater.
This makes the MAX9392/MAX9393 ideal for protection
switching in fault-tolerant systems, loopback switching for
diagnostics, fanout buffering for clock/data distribution,
and signal regeneration.
Fail-safe circuitry forces the outputs to a differential low
condition for undriven inputs or when the common-
mode voltage exceeds the specified range. The
MAX9392 provides high-level input fail-safe detection
for LVDS, HSTL, and other GND-referenced differential
inputs. The MAX9393 provides low-level input fail-safe
detection for LVPECL, CML, and other V
CC
-referenced
differential inputs.
Ultra-low 98ps
(P-P)
(max) pseudorandom bit sequence
(PRBS) jitter ensures reliable communications in high-
speed links that are highly sensitive to timing error,
especially those incorporating clock-and-data recovery,
or serializers and deserializers. The high-speed switch-
ing performance guarantees 1.5GHz operation and less
than 67ps (max) skew between channels.
LVDS inputs and outputs are compatible with the
TIA/EIA-644 LVDS standard. The LVDS outputs drive
100Ω loads. The MAX9392/MAX9393 are offered in
a 32-pin TQFP package and operate over the extended
temperature range (-40°C to +85°C).
Also see the MAX9390/MAX9391 for the crossflow version.
Applications
High-Speed Telecom/Datacom Equipment
Central-Office Backplane Clock Distribution
DSLAM
Protection Switching
Fault-Tolerant Systems
Features
1.5GHz Operation with 250mV Differential Output
Swing
2ps
RMS
(max) Random Jitter
AC Specifications Guaranteed for 150mV
Differential Input
Signal Inputs Accept Any Differential Signaling
Standard
LVDS Outputs for Clock or High-Speed Data
High-Level Input Fail-Safe Detection (MAX9392)
Low-Level Input Fail-Safe Detection (MAX9393)
3.0V to 3.6V Supply Voltage Range
LVCMOS/LVTTL Logic Inputs Control Signal
Routing
MAX9392/MAX9393
Anything-to-LVDS Dual 2 x 2
Crosspoint Switches
________________________________________________________________ Maxim Integrated Products 1
TOP VIEW
MAX9392
MAX9393
TQFP
32 28
293031
25
26
27
INA1
INA1
V
CC
ASEL0
ASEL1
INA0
INA0
GND
10
13
15
14
1611 12
9
ENB1
OUTB1
OUTB1
GND
ENB0
OUTB0
OUTB0
V
CC
17
18
19
20
21
22
23
OUTA0
24 V
CC
OUTA0
ENA0
GND
OUTA1
OUTA1
ENA1
2
3
4
5
6
7
8BSEL1
INB1
INB1
BSEL0
INB0
INB0
1GND
V
CC
+
PART TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX9392EHJ -40°C to +85°C 32 TQFP H32-1
MAX9392EHJ+ -40°C to +85°C 32 TQFP H32-1
MAX9393EHJ -40°C to +85°C 32 TQFP H32-1
MAX9393EHJ+ -40°C to +85°C 32 TQFP H32-1
Pin Configurations
Ordering Information
19-2913; Rev 1; 5/07
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.
+Denotes a lead-free package.
Functional Diagram and Typical Operating Circuit appear at
end of data sheet.
EVALUATION KIT
AVAILABLE
MAX9392/MAX9393
Anything-to-LVDS Dual 2 x 2
Crosspoint Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 3.0V to 3.6V, R
L
= 100Ω±1%, EN_ _ = V
CC
, V
CM
= 0.05V to (V
CC
- 0.6V) (MAX9392), V
CM
= 0.6V to (V
CC
- 0.05V)
(MAX9393), T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, |V
ID
| = 0.2V, V
CM
= 1.2V, T
A
= +25°C,
unless otherwise noted.) (Notes 1, 2, and 3)
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...........................................................-0.3V to +4.1V
IN_ _, IN_ _, OUT_ _, OUT_ _, EN_ _,
_SEL_ to GND..........................................-0.3V to (V
CC
+ 0.3V)
IN_ _ to IN_ _ ..........................................................................±3V
Short-Circuit Duration (OUT_ _, OUT_ _) ...................Continuous
Continuous Power Dissipation (T
A
= +70°C)
32-Pin TQFP (derate 13.1mW/°C
above +70°C).............................................................1047mW
Junction-to-Ambient Thermal Resistance in Still Air
32-Pin TQFP............................................................+76.4°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (10s) ...........................................+300°C
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
LVCMOS/LVTTL INPUTS (EN_ _, _SEL_)
Input High Voltage V
IH
2.0 V
CC
V
Input Low Voltage V
IL
0 0.8 V
Input High Current I
IH
V
IN
= 2.0V to V
CC
020µA
Input Low Current I
IL
V
IN
= 0 to 0.8V 0 10 µA
DIFFERENTIAL INPUTS (IN_ _, II
II
NN
NN
__
__
__
__
)
Differential Input Voltage V
ID
V
ILD
> 0 and V
IHD
< V
CC
, Figure 1 0.1 3.0 V
MAX9392 0.05 V
CC
- 0.6
Input Common-Mode Range V
CM
MAX9393 0.6 V
CC
- 0.05
V
MAX9392 |V
ID
| < 3.0V -50 +10
Input Current
I
IN_ _
,
I
IN_ _ MAX9393 |V
ID
| < 3.0V -10 +90
µA
LVDS OUTPUTS (OUT_ _, OO
OO
UU
UU
TT
TT
__
__
__
__
)
Differential Output Voltage V
OD
R
L
= 100Ω, Figure 2 250 350 450 mV
Change in Magnitude of V
OD
Between Complementary Output
States
ΔV
OD
Figure 2 1.0 50 mV
Offset Common-Mode Voltage V
OS
Figure 2 1.125 1.25 1.375 V
Change in Magnitude of V
OS
Between Complementary Output
States
ΔV
OS
Figure 2 1.0 50 mV
MAX9392/MAX9393
Anything-to-LVDS Dual 2 x 2
Crosspoint Switches
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 3.0V to 3.6V, f
IN
1.34GHz, t
R_IN
= t
F_IN
= 125ps, R
L
= 100Ω±1%, |V
ID
| 150mV, V
CM
= 0.075V to (V
CC
- 0.6V) (MAX9392
only), V
CM
= 0.6V to (V
CC
- 0.075V) (MAX9393 only), EN_ _ = V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are
at V
CC
= 3.3V, |V
ID
| = 0.2V, V
CM
= 1.2V, f
IN
= 1.34GHz, T
A
= +25°C, unless otherwise noted.) (Note 5)
Note 1: Measurements obtained with the device in thermal equilibrium. All voltages referenced to GND except V
ID
, V
OD
, and ΔV
OD
.
Note 2: Current into the device defined as positive. Current out of the device defined as negative.
Note 3: DC parameters tested at T
A
= +25°C and guaranteed by design and characterization for T
A
= -40°C to +85°C.
Note 4: Current through either output.
Note 5: Guaranteed by design and characterization. Limits set at ±6 sigma.
Note 6: t
SKEW
is the magnitude difference of differential propagation delays for the same output over same conditions. t
SKEW
=
|t
PHL
- t
PLH
|.
Note 7: Measured between outputs of the same device at the signal crossing points for a same-edge transition, under the same
conditions.
Note 8: Device jitter added to the differential input signal.
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3.0V to 3.6V, R
L
= 100Ω±1%, EN_ _ = V
CC
, V
CM
= 0.05V to (V
CC
- 0.6V) (MAX9392), V
CM
= 0.6V to (V
CC
- 0.05V)
(MAX9393), T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, |V
ID
| = 0.2V, V
CM
= 1.2V, T
A
= +25°C,
unless otherwise noted.) (Notes 1, 2, and 3)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
V
OUT_ _
or V
OUT_ _
= 0 30 40
Output Short-Circuit Current
(Either Output Shorted to GND)
|I
OS
|
V
ID
= ±100m V
( N ote 4)
V
OUT_ _
= V
OUT_ _
= 0 18 24
mA
Output Short-Circuit Current
(Outputs Shorted Together)
|I
OSB
|
V
ID
= ±100mV, V
OUT_ _
= V
OUT_ _
(Note 4)
5.0 12 mA
SUPPLY CURRENT
Supply Current I
CC
R
L
= 100Ω, EN_ _ = V
CC
68 98 mA
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
_SEL_ to Switched Output t
SWITCH
Figure 3 1.1 ns
Disable Time to Differential
Output Low
t
PHD
Figure 4 1.7 ns
Enable Time to Differential
Output High
t
PDH
Figure 4 1.7 ns
Switching Frequency f
MAX
V
OD
> 250mV 1.5 2.2 GHz
Low-to-High Propagation Delay t
PLH
Figures 1, 5 294 410 574 ps
High-to-Low Propagation Delay t
PHL
Figures 1, 5 286 402 555 ps
Pulse Skew |t
PLH
- t
PHL
|t
SKEW
Figures 1, 5 (Note 6) 17 104 ps
Output-to-Output Skew t
CCS
Figures 5, 6 (Note 7) 4 67 ps
Output Low-to-High Transition
Time (20% to 80%)
t
R
Figures 1, 5; f
IN
= 100MHz 112 142 185 ps
Output High-to-Low Transition
Time (80% to 20%)
t
F
Figures 1, 5; f
IN
= 100MHz 112 145 185 ps
Added Random Jitter t
RJ
f
IN_ _
= 1.34GHz, clock pattern (Note 8) 2 ps
RMS
Added Deterministic Jitter t
DJ
1.34Gbps, 2
23
- 1 PRBS (Note 8) 60 98 ps
P-P

MAX9392EHJ+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Analog & Digital Crosspoint ICs X-LVDS 2x2 CrossPt Switch, Dual
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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