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MAX9158 Datasheet

  • MAX9158

  • Quad Bus LVDS Transceiver in 44 QFN

  • Maxim   Maxim

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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 27鈩?load (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鈥檚 high-impedance I/Os (except for receiver
outputs) when V
CC
= 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
鉁?/div>
7mm 44-lead QFN
package, and is fully specified for the -40擄C to +85擄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.
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 V
CC
=
0V or Open
o
Guaranteed 200Mbps Driver Data Rate
o
Low-Jitter Fail-Safe Circuit
o
Flow-Through Pinout
Features
MAX9158
Ordering Information
PART
MAX9158EGM
TEMP RANGE
-40擄C to +85擄C
PIN-PACKAGE
44 QFN (7mm
鉁?/div>
7mm)
Pin Configuration
RO4
DIN4
RO3
DIN3
GND
RO2
DIN2
RO1
41
40
39
38
37
36
44
43
42
35
DIN1
N.C.
TOP VIEW
(LEADS UNDER PACKAGE)
Applications
Add/Drop Muxes
Digital Cross-Connects
Network
Switches/Routers
Cellular Phone Base
Stations
DSLAMs
Multipoint Buses
N.C.
N.C.
V
CC
GND
RE34
V
CC
AV
CC
DE34
AGND
AV
CC
N.C.
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
34
33
32
31
30
29
N.C.
N.C.
N.C.
GND
V
CC
RE12
GND
AV
CC
DE12
AGND
N.C.
N.C.
MAX9158EGM
28
27
26
25
24
23
Functional Diagram appears at end of data sheet.
Typical Operating Circuit
MAX9158
CARD 1
MAX9158
CARD 15
MAX9158
CARD 16
1in CARD
SPACING
Rt = 54鈩?/div>
DO4+/RIN4+
DO3-/RIN3-
DO3+/RIN3+
AGND
DO2-/RIN2-
DO2+/RIN2+
QFN
DO1-/RIN1-
DO1+/RIN1+
AV
CC
DO4-/RIN4-
Rt = 54鈩?/div>
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX9158 PDF文件相關(guān)型號

MAX9158EGM

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