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PDF MAX9178 Data sheet ( Hoja de datos )
| Número de pieza | MAX9178 | |
| Descripción | Quad LVDS Line Driver | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-2856; Rev 0; 4/03
Quad LVDS Line Driver with High-ESD
Tolerance and Flow-Through Pinout
General Description
The MAX9178 quad low-voltage differential signaling
(LVDS) line driver with high-ESD tolerance is ideal for
applications requiring high data rates and low power
with reduced noise. The MAX9178 is guaranteed to
transmit data at speeds up to 400Mbps (200MHz) over
controlled impedance of media of approximately 100Ω.
The transmission media can be printed circuit (PC)
board traces, backplanes, or cables.
The MAX9178 accepts four LVTTL/LVCMOS inputs and
translates them to LVDS output signals. All inputs toler-
ate overshoot of VCC +1V and undershoot of -1V. The
EN and EN inputs are ANDed together and control the
high-impedance outputs. When the device is disabled,
power drops to ultra-low 12.6mW (typ). Outputs con-
form to the ANSI TIA/EIA-644 LVDS standard.
The MAX9178 operates from a single +3.3V supply,
and is available in a 16-pin TSSOP and 16-pin thin QFN
package with exposed pad. The MAX9178 is specified
for operation from -40°C to +85°C.
Applications
Digital Copiers
Laser Printers
Cell Phone Base
Stations
Add/Drop Muxes
Digital Cross-Connects
DSLAMs
Network
Switches/Routers
Backplane
Interconnect
Clock Distribution
Features
o Flow-Through Pinout
Simplifies PC Board Layout
Reduces Crosstalk
o Pin Compatible with DS90LV047A and MAX9123
o Guaranteed 400Mbps Data Rate
o Single-Ended Inputs Tolerate 1V
Overshoot/Undershoot
o 250ps Maximum Pulse Skew
o IEC 61000-4-2 Level 4 ESD Tolerance on LVDS
Outputs
o Conforms to ANSI TIA/EIA-644 LVDS Standard
o Single +3.3V Supply
Ordering Information
PART
MAX9178EUE
MAX9178ETE
*EP = Exposed pad.
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 Thin QFN-EP*
Typical Application Circuit
LVDS SIGNALS
MAX9178
MAX9122
Functional Diagram appears at end of data sheet.
TX
107Ω
RX
Pin Configurations
TOP VIEW
EN 1
IN1 2
IN2 3
VCC 4
GND 5
IN3 6
IN4 7
EN 8
MAX9178
TSSOP
16 OUT1-
15 OUT1+
14 OUT2+
13 OUT2-
12 OUT3-
11 OUT3+
10 OUT4+
9 OUT4-
IN2 1
VCC 2
GND 3
IN3 4
16 15 14 13
MAX9178
EXPOSED PAD
12 OUT2+
11 OUT2-
10 OUT3-
9 OUT3+
567 8
QFN
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 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.
1 page  
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Quad LVDS Line Driver with High-ESD
Tolerance and Flow-Through Pinout
Typical Operating Characteristics (continued)
(VCC = +3.3V, RL = 100Ω, CL = 15pF, TA = +25°C, unless otherwise noted.)
DIFFERENTIAL OUTPUT VOLTAGE
vs. LOAD RESISTOR
600
500
400
300
200
100
0
50 60 70 80 90 100 110 120 130 140 150
LOAD RESISTOR (Ω)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
30
FREQUENCY = 200MHz
28
26
ALL-CHANNELS SWITCHING
24
22
20
ONE-CHANNEL SWITCHING
18
16
3.0
3.1 3.2 3.3 3.4 3.5
SUPPLY VOLTAGE (V)
3.6
DIFFERENTIAL PROPAGATION DELAY
vs. AMBIENT TEMPERATURE
2.0
1.9 FREQUENCY = 200MHz
1.8
1.7
1.6
1.5 tPLHD
1.4
tPHLD
1.3
1.2
1.1
1.0
-40
-15 10 35 60
TEMPERATURE (°C)
85
1.280
1.278
1.276
1.274
1.272
1.270
1.268
1.266
1.264
1.262
1.260
3.0
OFFSET VOLTAGE
vs. SUPPLY VOLTAGE
3.1 3.2 3.3 3.4 3.5
SUPPLY VOLTAGE (V)
3.6
SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
28
FREQUENCY = 200MHz
26 ALL-CHANNELS SWITCHING
24
22
20
ONE-CHANNEL SWITCHING
18
-40
-15 10 35 60
TEMPERATURE (°C)
DIFFERENTIAL SKEW
vs. SUPPLY VOLTAGE
200
180 FREQUENCY = 200MHz
160
140
120
100
80
60
40
20
0
3.0 3.1 3.2 3.3 3.4 3.5
SUPPLY VOLTAGE (V)
85
3.6
SUPPLY CURRENT
vs. FREQUENCY
27
24
21
ALL-CHANNELS SWITCHING
18
ONE-CHANNEL SWITCHING
15
0.01
0.1 1 10 100 1000
FREQUENCY (MHz)
DIFFERENTIAL PROPAGATION DELAY
vs. SUPPLY VOLTAGE
1.55
FREQUENCY = 200MHz
1.50
1.45 tPLHD
1.40
1.35 tPHLD
1.30
1.25
3.0
3.1 3.2 3.3 3.4 3.5
SUPPLY VOLTAGE (V)
3.6
DIFFERENTIAL SKEW
vs. AMBIENT TEMPERATURE
200
180 FREQUENCY = 200MHz
160
140
120
100
80
60
40
20
0
-40
-15 10 35 60
TEMPERATURE (°C)
85
_______________________________________________________________________________________ 5
5 Page 
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Quad LVDS Line Driver with High-ESD
Tolerance and Flow-Through Pinout
Functional Diagram
Chip Information
OUT1+
IN1
TRANSISTOR COUNT: 1089
PROCESS: CMOS
OUT1-
OUT2+
IN2
OUT2-
OUT3+
IN3
OUT3-
OUT4+
IN4
OUT4-
EN
EN
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet MAX9178.PDF ] | |
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