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PDF MAX9123 Data sheet ( Hoja de datos )
| Número de pieza | MAX9123 | |
| Descripción | Quad LVDS Line Driver | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-1927; Rev 0; 2/01
Quad LVDS Line Driver with
Flow-Through Pinout
General Description
The MAX9123 quad low-voltage differential signaling
(LVDS) differential line driver is ideal for applications
requiring high data rates, low power, and low noise. The
MAX9123 is guaranteed to transmit data at speeds up to
800Mbps (400MHz) over controlled impedance media of
approximately 100Ω. The transmission media may be
printed circuit (PC) board traces, backplanes, or cables.
The MAX9123 accepts four LVTTL/LVCMOS input levels
and translates them to LVDS output signals. Moreover,
the MAX9123 is capable of setting all four outputs to a
high-impedance state through two enable inputs, EN and
EN, thus dropping the device to an ultra-low-power state
of 16mW (typ) during high impedance. The enables are
common to all four transmitters. Outputs conform to the
ANSI TIA/EIA-644 LVDS standard. Flow-through pinout
simplifies PC board layout and reduces crosstalk by sep-
arating the LVTTL/LVCMOS inputs and LVDS outputs.
The MAX9123 operates from a single +3.3V supply and is
specified for operation from -40°C to +85°C. It is available
in 16-pin TSSOP and SO packages. Refer to the MAX9121/
MAX9122* data sheet for quad LVDS line receivers with
integrated termination and flow-through pinout.
Digital Copiers
Laser Printers
Cell Phone Base
Stations
Add Drop Muxes
Digital Cross-Connects
Applications
DSLAMs
Network
Switches/Routers
Backplane
Interconnect
Clock Distribution
Pin Configuration
TOP VIEW
EN 1
IN1 2
IN2 3
VCC 4
GND 5
IN3 6
IN4 7
EN 8
16 OUT1-
15 OUT1+
14 OUT2+
MAX9123 13 OUT2-
12 OUT3-
11 OUT3+
10 OUT4+
9 OUT4-
TSSOP/SO
* Future product—contact factory for availability.
Features
o Flow-Through Pinout
Simplifies PC Board Layout
Reduces Crosstalk
o Pin Compatible with DS90LV047A
o Guaranteed 800Mbps Data Rate
o 250ps Maximum Pulse Skew
o Conforms to TIA/EIA-644 LVDS Standard
o Single +3.3V Supply
o 16-Pin TSSOP and SO Packages
PART
MAX9123EUE
MAX9123ESE
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 SO
Typical Applications Circuit
LVDS SIGNALS
MAX9123
MAX9122*
TX
107Ω
RX
LVTTL/CMOS
DATA INPUT
TX
TX
107Ω
RX
107Ω
RX
LVTTL/CMOS
DATA OUTPUT
TX
107Ω
RX
100Ω SHIELDED TWISTED CABLE OR MICROSTRIP PC BOARD TRACES
________________________________________________________________ Maxim Integrated Products 1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
Quad LVDS Line Driver with
Flow-Through Pinout
Typical Operating Characteristics (continued)
(VCC = +3.3V, RL = 100Ω, CL = 15pF, TA = +25°C, unless otherwise noted.)
POWER-SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
25.0
FREQ = 1MHz
VIN = 0 to 3V
24.0
23.0
22.0
21.0
20.0
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
85
DIFFERENTIAL PROPAGATION DELAY
vs. POWER SUPPLY
1.600
1.550
FREQ = 1MHz
1.500
1.450
tPLHD
1.400
1.350
tPHLD
1.300
1.250
1.200
3.0
3.3
POWER-SUPPLY VOLTAGE (V)
3.6
DIFFERENTIAL PROPAGATION DELAY
vs. AMBIENT TEMPERATURE
1.600
1.500
1.400
tPLHD
1.300
1.200
tPHLD
FREQ = 1MHz
1.100
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
85
DIFFERENTIAL SKEW
vs. POWER-SUPPLY VOLTAGE
100
FREQ = 1MHz
80
DIFFERENTIAL SKEW
vs. AMBIENT TEMPERATURE
200
FREQ = 1MHz
175
150
60 125
100
40 75
50
20
25
0
3.0 3.3 3.6
POWER-SUPPLY VOLTAGE (V)
TRANSITION TIME
vs. POWER-SUPPLY VOLTAGE
400
FREQ = 1MHz
390
380
370 tTLH
tTHL
360
350
340
3.0
3.3
POWER-SUPPLY VOLTAGE (V)
3.6
0
-40 -15 10 35 60
AMBIENT TEMPERATURE (°C)
TRANSITION TIME
vs. AMBIENT TEMPERATURE
600
FREQ = 1MHz
550
85
500
450
400 tTLH
350
300 tTHL
250
200
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
85
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MAX9123.PDF ] | |
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