Rainbow Electronics MAX9393 - Manual

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
100
Ω loads. The MAX9392/MAX9393 are offered in
5mm x 5mm thin QFN with exposed paddle and 32-pin
TQFP packages and operate over the extended tem-
perature 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 29 30 31 25 26 27
INA1 INA1 V
CC
ASEL0 ASEL1 INA0 INA0 GND
10 13 15 14 16 11 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
8 BSEL1
INB1
INB1
BSEL0
INB0
INB0
1 GND
V CC
PART TEMP RANGE PIN-PACKAGE
MAX9392EHJ -40°C to +85°C 32 TQFP
MAX9392ETJ* -40°C to +85°C 32 Thin QFN
MAX9393EHJ -40°C to +85°C 32 TQFP
MAX9393ETJ* -40°C to +85°C 32 Thin QFN
Pin Configurations
Ordering Information
19-2913; Rev 0; 8/03
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.
*Future product—contact factory for availability.
Pin Configurations continued at end of data sheet.
Functional Diagram and Typical Operating Circuit appear at
end of data sheet.