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MAX9158 Datasheet PDF

Part Number MAX9158
Description Quad Bus LVDS Transceiver in 44 QFN
Manufacture Maxim
Total Page 15 Pages
PDF Download Download MAX9158 Datasheet PDF

Features: Datasheet pdf 19-2396; Rev 0; 4/02 Quad Bus LVDS Tran sceiver in 44 QFN General Description T he MAX9158 is a quad bus LVDS (BLVDS) t ransceiver for heavily loaded, half-dup lex multipoint buses. A 44lead QFN pack age and flow-through pinout allow the t ransceiver to be placed near the connec tor. The MAX9158 drives LVDS levels int o a 27Ω load (double terminated, heav ily loaded LVDS bus) at up to 200Mbps. An input fail-safe circuit ensures the receiver output is high when the differ ential inputs are open, or undriven and shorted, or undriven and terminated. T he MAX9158 operates from a single 3.3V supply, consuming 77mA supply current w ith drivers enabled, and 19.9mA with dr ivers disabled. The MAX9158’s high-im pedance I/Os (except for receiver outpu ts) when VCC = 0V or open, combined wit h glitchfree power-up and power-down, a llow hot swapping of cards in multicard bus systems; 7.3pF (max) BLVDS I/O cap acitance minimizes bus loading. The MAX 9158 is offered in a 7mm ✕ 7mm 44-lead QFN package, and is fully sp.

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MAX9158 datasheet
19-2396; Rev 0; 4/02
Quad Bus LVDS Transceiver in 44 QFN
General Description
The MAX9158 is a quad bus LVDS (BLVDS) transceiver
for heavily loaded, half-duplex multipoint buses. A 44-
lead QFN package and flow-through pinout allow the
transceiver to be placed near the connector. The
MAX9158 drives LVDS levels into a 27load (double
terminated, heavily loaded LVDS bus) at up to
200Mbps. An input fail-safe circuit ensures the receiver
output is high when the differential inputs are open, or
undriven and shorted, or undriven and terminated. The
MAX9158 operates from a single 3.3V supply, consum-
ing 77mA supply current with drivers enabled, and
19.9mA with drivers disabled.
The MAX9158’s high-impedance I/Os (except for receiver
outputs) when VCC = 0V or open, combined with glitch-
free power-up and power-down, allow hot swapping of
cards in multicard bus systems; 7.3pF (max) BLVDS I/O
capacitance minimizes bus loading.
The MAX9158 is offered in a 7mm 7mm 44-lead QFN
package, and is fully specified for the -40°C to +85°C
extended temperature range. Refer to the MAX9157 data
sheet for a quad BLVDS transceiver with hysteresis in 32-
lead QFN and TQFP packages. Refer to the MAX9129
data sheet for a quad BLVDS driver, ideal for dual multi-
point full-duplex buses.
Applications
Add/Drop Muxes
Digital Cross-Connects
Network
Switches/Routers
Cellular Phone Base
Stations
DSLAMs
Multipoint Buses
Features
o 44-Lead QFN Package
o 1ns (min) Driver Transition Time (0% to 100%)
Minimizes Reflections
o Guaranteed 7.3pF (max) Bus Load Capacitance
o Glitch-Free Power-Up and Power-Down
o Hot-Swappable, High-Impedance I/O with VCC =
0V or Open
o Guaranteed 200Mbps Driver Data Rate
o Low-Jitter Fail-Safe Circuit
o Flow-Through Pinout
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX9158EGM -40°C to +85°C 44 QFN (7mm 7mm)
Pin Configuration
TOP VIEW
(LEADS UNDER PACKAGE)
N.C.
N.C.
VCC
GND
RE34
VCC
AVCC
DE34
AGND
AVCC
N.C.
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
MAX9158EGM
34 N.C.
33 N.C.
32 N.C.
31 GND
30 VCC
29 RE12
28 GND
27 AVCC
26 DE12
25 AGND
24 N.C.
23 N.C.
Functional Diagram appears at end of data sheet.
MAX9158
CARD 1
MAX9158
CARD 15
QFN
Typical Operating Circuit
MAX9158
CARD 16
1in CARD
SPACING
Rt = 54
Rt = 54
________________________________________________________________ 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.

MAX9158 datasheet
Quad Bus LVDS Transceiver in 44 QFN
ABSOLUTE MAXIMUM RATINGS
VCC, AVCC to GND ................................................-0.3V to +4.0V
DO_+/RIN_+, DO_-/RIN_- to GND ........................-0.3V to +4.0V
DIN_, DE_, RE_ to GND.........................................-0.3V to +4.0V
RO_ to GND................................................-0.3V to (VCC + 0.3V)
AGND to GND .......................................................-0.3V to +0.3V
Short-Circuit Duration (DO_+/RIN_+, DO_-/RIN_-) ....Continuous
Continuous Power Dissipation (TA = +70°C)
44-Lead QFN (derate 24.3mW/°C above +70°C) ......2105mW
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
ESD Protection
Human Body Model (DO_+/RIN_+, DO_-/RIN_-).............±4kV
Lead Temperature (soldering, 10s) .................................+300°C
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.
DC ELECTRICAL CHARACTERISTICS
(VCC = 3.0V to 3.6V, RL = 27±1%, receiver differential input voltage |VID| = 0.1V to 3.0V, receiver input common-mode voltage
VCM = 0.05V to 2.4V, receiver input voltage range = 0V to 3.0V, DE_ = high, RE_ = low, TA = -40°C to +85°C, unless otherwise noted.
Typical values are at VCC = 3.3V, |VID| = 0.2V, VCM = 1.2V, and TA = +25°C.) (Notes 1 and 2)
PARAMETER
SYMBOL
BLVDS (DO_+/RIN_+, DO_-/RIN_-)
Differential Input High Threshold
Differential Input Low Threshold
VTH
VTL
Input Current
IIN+, IIN-
Input Resistance
Power-Off Input Current
Differential Output Voltage
Change in Magnitude of VOD for
Complementary Output States
Offset Voltage
Change in Magnitude of VOS for
Complementary Output States
Output High Voltage
Output Low Voltage
RIN1
RIN2
IINO+,
IINO-
VOD
VOD
VOS
VOS
VOH
VOL
Output Short-Circuit Current
IOS
CONDITIONS
DE_ = low
DE_ = low
0.1V ≤VID≤ 0.6V, DE_ = low
0.6V <VID≤ 1.2V, DE_ = low
VCC = 3.6V, 0V or open, Figure 1
VCC = 3.6V, 0V or open, Figure 1
0.1V ≤VID≤ 0.6V, VCC = 0V or open
0.6V <VID≤ 1.2V, VCC = 0V or open
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
DIN_ = high, DO_+/RIN_+ = 0V or
VCC, DO_-/RIN_- = 0V or VCC
DIN_ = low, DO_-/RIN_- = 0V or
VCC, DO_+/RIN_+ = 0V or VCC
MIN TYP MAX UNITS
4.0 100
-100 -4.3
-15 ±1.7 +15
-20 ±2.3 +20
53
148
-15 ±0.9 +15
-20 ±1.9 +20
250 398 460
1 25
1.185 1.274 1.435
1.9 25
1.473 1.650
0.950 1.075
-30 +30
-30 +30
mV
mV
µA
k
µA
mV
mV
V
mV
V
V
mA
2 _______________________________________________________________________________________




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