MAX9150EUI [MAXIM]
Low-Jitter, 10-Port LVDS Repeater; 低抖动， 10端口LVDS中继器
| 型号： | MAX9150EUI |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Jitter, 10-Port LVDS Repeater |
| 文件： | 总10页 (文件大小：205K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1815; Rev 0; 10/00
Low-Jitter, 10-Port LVDS Repeater
General Description
Features
The MAX9150 low-jitter, 10-port, low-voltage differential
signaling (LVDS) repeater is designed for applications
that require high-speed data or clock distribution while
minimizing power, space, and noise. The device
accepts a single LVDS input and repeats the signal at
10 LVDS outputs. Each differential output drives a total
of 50 , allowing point-to-point distribution of signals on
transmission lines with 100 terminations on each end.
ꢀ Ultra-Low 120ps
(max) Total Jitter
p-p
(Deterministic and Random)
ꢀ 100ps (max) Skew Between Channels
ꢀ Guaranteed 400Mbps Data Rate
ꢀ 60µA Shutdown Supply Current
ꢀ Conforms to EIA/TIA-644 LVDS Standard
ꢀ Single +3.3V Supply
Ultra-low 120ps (max) peak-to-peak jitter (deterministic
and random) ensures reliable communication 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 400Mbps data rate and
less than 100ps skew between channels while operat-
ing from a single +3.3V supply.
ꢀ Fail-Safe Circuit Sets Output High for Undriven
Inputs
ꢀ High-Impedance LVDS Input when V
= 0
CC
Supply current at 400Mbps is 160mA (max) and is
reduced to 60µA (max) in low-power shutdown mode.
Inputs and outputs conform to the EIA/TIA-644 LVDS
standard. A fail-safe feature sets the outputs high when
the input is undriven and open, terminated, or shorted.
The MAX9150 is available in a 28-pin TSSOP package.
Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX9150EUI
-40°C to +85°C
28 TSSOP
Refer to the MAX9110/MAX9112 and MAX9111/MAX9113
data sheets for LVDS line drivers and receivers.
Pin Configuration
________________________Applications
TOP VIEW
Cellular Phone Base Stations
MAX9150
Add/Drop Muxes
DO2+
1
2
28 DO3+
27 DO3-
26 DO4+
25 DO4-
24 DO5+
23 DO5-
Digital Crossconnects
Network Switches/Routers
Backplane Interconnect
Clock Distribution
DO2-
DO1+
DO1-
PWRDN
GND
3
4
5
Typical Application Circuit
6
RIN+
7
22 V
CC
RIN-
8
21 GND
20 DO6+
19 DO6-
18 DO7+
17 DO7-
16 DO8+
15 DO8-
LVDS
GND
9
MAX9150
1
R
X
100 100
V
CC
10
LVDS
100
DO10+ 11
DO10- 12
DO9+ 13
DO9- 14
BACKPLANE
OR CABLE
MAX9111
T
X
10
R
X
100 100
MAX9110
MAX9111
TSSOP
________________________________________________________________ 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.
Low-Jitter, 10-Port LVDS Repeater
ABSOLUTE MAXIMUM RATINGS
CC
RIN+, RIN- to GND................................................-0.3V to +4.0V
PWRDN to GND..........................................-0.3V to (V + 0.3V)
DO_+, DO_-...........................................................-0.3V to +4.0V
V
to GND...........................................................-0.3V to +4.0V
Storage Temperature.........................................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Operating Temperature Range...........................-40°C to +85°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
Short-Circuit Duration (DO_+, DO_-) .........................Continuous
Continuous Power Dissipation (T = +70°C)
A
28-Pin TSSOP (derate 12.8mW/°C above +70°C) .....1026mW
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
(V
= +3.0V to +3.6V, R = 50
1ꢀ, V = 0.1V to 1.0V, V
= V / 2 to 2.4V - V / 2 , PWRDN = high, T = -40°C to +85°C,
A
CC
L
| ID|
CM | ID
|
| ID
|
unless otherwise noted. Typical values are at V
= +3.3V, T = +25°C.) (Note 1)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
2.0
TYP
MAX
UNITS
PWRDN
Input High Voltage
V
V
V
IH
Input Low Voltage
V
0.8
15
IL
Input Current
I
V
= V and 0
CC
-15
µA
IN
IN
LVDS INPUT
Differential Input High Threshold
Differential Input Low Threshold
V
7
100
mV
mV
TH
V
-100
-6
-7
TL
PWRDN = high or low; V
RIN-= open or RIN+= open, V
= 2.4V,
RIN+
+1
+1
= 2.4V
RIN-
Single-Ended Input Current
I
µA
IN
PWRDN = high or low; V
RIN-= open or RIN+= open, V
= 0,
RIN+
-18
= 0
RIN-
Power-Off Single-Ended Input
Current
V
= 0; V
= 2.4V, RIN-= open
RIN+
CC
I
-1
5
+12
µA
k
IN(OFF)
or RIN+= open, V
= 2.4V
RIN-
Differential Input Resistance
LVDS DRIVER
RI
V
= +3.6V or 0, PWRDN = high or low
CC
DIFF
Differential Output Voltage
V
Figure 1
Figure 1
Figure 1
Figure 1
250
320
450
25
mV
mV
V
OD
Change in VOD Between
Complementary Output States
V
OD
OS
Offset (Common-Mode) Voltage
V
0.90
1.25
1.375
25
Change in VOS Between
Complementary Output States
V
mV
OS
Output High Voltage
Output Low Voltage
V
Figure 1
Figure 1
1.6
V
V
OH
V
0.7
OL
Differential Output Resistance
(Note 2)
RO
V
= +3.6V or 0, PWRDN = high or low
CC
150
240
330
450
DIFF
Differential High Output Voltage
in Fail-Safe
R
, R undriven with short, open, or
IN+ IN-
V
250
-15
mV
mA
OD+
100 termination
V
V
= +100mV, V
= GND
ID
ID
DO_+
Output Short-Circuit Current
I
SC
= -100mV, V
= GND
DO_-
2
_______________________________________________________________________________________
Low-Jitter, 10-Port LVDS Repeater
DC ELECTRICAL CHARACTERISTICS (continued)
(V
= +3.0V to +3.6V, R = 50
1ꢀ, V = 0.1V to 1.0V, V
= V / 2 to 2.4V - V / 2 , PWRDN = high, T = -40°C to +85°C,
A
CC
L
| ID|
CM | ID
|
| ID
|
unless otherwise noted. Typical values are at V
= +3.3V, T = +25°C.) (Note 1)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
= 0, PWRDN = GND;
CC
V
V
_
= 3.6V or 0, DO_-= open; or
-1
+1
µA
DO +
_ = 3.6V or 0, DO_+= open
DO -
Single-Ended Output High-
Impedance Current
I
OZ
PWRDN = GND;
V
V
_ = 3.6V or 0, DO_- = open; or
DO +
_ = 3.6V or 0, DO_+ = open
DO -
-1
+1
µA
SUPPLY CURRENT
DC
100
130
140
160
60
Supply Current (Note 2)
Power-Down Supply Current
I
Figure 2
mA
µA
CC
200MHz (400Mbps)
I
PWRDN = GND
CCZ
AC ELECTRICAL CHARACTERISTICS
(V
= +3.0V to +3.6V, R = 50
1ꢀ, C = 5pF, V = 0.2V to 1.0V, V
= V / 2 to 2.4V - V / 2 , PWRDN = high, T = -40°C
A
CC
L
L
| ID|
CM | ID
|
| ID
|
to +85°C, unless otherwise noted. Typical values are at V
= +3.3V, T = +25°C.) (Notes 2–5)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Differential Propagation Delay
High-to-Low
t
Figures 2, 3
Figures 2, 3
1.6
1.6
2.2
3.5
ns
PHLD
PLHD
Differential Propagation Delay
Low-to-High
t
2.2
20
40
3.5
120
100
ns
Total Peak-to-Peak Jitter
(Random and Deterministic)
(Note 6)
t
Figures 2, 3
ps
p-p
JPP
Differential Output-to-Output
Skew (Note 7)
t
Figures 2, 3
Figures 2, 3
ps
SKOO
Differential Part-to-Part Skew
(Note 8)
t
1.9
ns
SKPP
Rise/Fall Time
T
t
Figures 2, 3
Figures 2, 3
150
400
220
450
ps
TLH, THL
Maximum Input Frequency (Note 9)
f
Mbps
MAX
_______________________________________________________________________________________
3
Low-Jitter, 10-Port LVDS Repeater
AC ELECTRICAL CHARACTERISTICS (continued)
(V
= +3.0V to +3.6V, R = 50
1ꢀ, C = 5pF, V = 0.2V to 1.0V, V
= V / 2 to 2.4V - V / 2 , PWRDN = high, T = -40°C
A
CC
L
L
| ID|
CM | ID
|
| ID
|
to +85°C, unless otherwise noted. Typical values are at V
= +3.3V, T = +25°C.) (Notes 2–5)
CC
A
PARAMETER
Power-Down Time
Power-Up Time
SYMBOL
CONDITIONS
MIN
TYP
MAX
100
UNITS
ns
t
t
PD
PU
Figures 4, 5
100
µs
Note 1: Current-into-device pins is defined as positive. Current-out-of-device pins is defined as negative. All voltages are
referenced to ground, except V , V , V , and
V
.
TH TL OD
OD
Note 2: Guaranteed by design, not production tested.
Note 3: AC parameters are guaranteed by design and characterization.
Note 4: C includes scope probe and test jig capacitance.
L
Note 5: Signal generator conditions, unless otherwise noted: frequency = 200MHz, 50ꢀ duty cycle, R = 50 , t = 1ns, and t =
O
R
F
1ns (0ꢀ to 100ꢀ).
Note 6: Signal generator conditions for t : V
= 200mV, V = 1.2V, frequency = 200MHz, 50ꢀ duty cycle, R = 50 , t = 1ns,
JPP OD
OS
O
R
and t = 1ns (0ꢀ to 100ꢀ. t
includes pulse (duty cycle) skew.
F
JPP
Note 7: t
is the magnitude difference in differential propagation delay between outputs for a same-edge transition.
SKOO
Note 8: t
Note 9: Device meets V
is the MAX - MIN differential propagation delay.
SKPP
|
|
and AC specifications while operating at f
.
MAX
OD
Typical Operating Characteristics
(Figure 2, V
= +3.3V, R = 50 , C = 5pF, IV I = 200mV, V
= 1.2V, f = 50MHz, T = +25°C, unless otherwise noted.)
CC
L
L
ID
CM IN A
DIFFERENTIAL PROPAGATION DELAY
vs. OUTPUT LOAD
DIFFERENTIAL PROPAGATION DELAY
vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. FREQUENCY
150
140
130
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.40
2.35
2.30
2.25
2.20
2.15
2.10
t
PLHD
t
PLHD
120
110
100
t
PHLD
t
PHLD
90
50
60
70
80
90
100
0.1
1
10
100
1000
3.0
3.1
3.2
3.3
(V)
3.4
3.5
3.6
INPUT FREQUENCY (MHz)
R (
L
)
V
CC
4
_______________________________________________________________________________________
Low-Jitter, 10-Port LVDS Repeater
Typical Operating Characteristics (continued)
(Figure 2, V
= +3.3V, R = 50 , C = 5pF, IV I = 200 mV, V
= 1.2V, f = 50MHz, T = +25°C, unless otherwise noted.)
CC
L
L
ID
CM IN A
DIFFERENTIAL PROPAGATION DELAY
vs. COMMON-MODE VOLTAGE
DIFFERENTIAL OUTPUT-TO-OUTPUT
SKEW vs. SUPPLY VOLTAGE
TRANSITION TIME vs. SUPPLY VOLTAGE
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
40
30
20
10
0
215
210
205
200
195
190
185
H
t
G
TLH
B
A, E
F, I
D
t
PLHD
C
t
PHLD
t
THL
-10
-20
A = D02 - D01 B = D03 - D01 C = D04 - D01
D = D05 - D01 E = D06 - D01 F = D07 - D01
G = D08 - D01 H = D09 - D01 I = D010 - D01
0
0.5
1.0
1.5
(V)
2.0
2.5
3.0
3.1
3.2
3.3
(V)
3.4
3.5
3.6
3.0
3.1
3.2
3.3
(V)
3.4
3.5
3.6
V
V
V
CC
CM
CC
TRANSITION TIME vs. OUTPUT LOAD
TRANSITION TIME vs. CAPACITANCE
240
600
230
220
210
200
190
180
t
TLH
500
400
300
200
100
t
TLH
t
THL
t
THL
50
60
70
80
90
100
5
7
9
11
13
15
R (
L
)
C (pF)
L
DIFFERENTIAL OUTPUT vs. SUPPLY VOLTAGE
DIFFERENTIAL OUTPUT vs. OUTPUT LOAD
335
570
520
470
420
370
320
270
330
325
320
315
310
3.0
3.1
3.2
3.3
(V)
3.4
3.5
3.6
50
60
70
80
90
100
V
R (
L
)
CC
_______________________________________________________________________________________
5
Low-Jitter, 10-Port LVDS Repeater
Pin Description
PIN
NAME
FUNCTION
1, 3, 11, 13,
16, 18, 20,
24, 26, 28
DO2+, DO1+, DO10+,
DO9+, DO8+, DO7+,
DO6+, DO5+, DO4+, DO3+
Differential LVDS Outputs. Connect a 100 resistor across each of the output
pairs (DO_+ and DO_-) adjacent to the IC, and connect a 100 resistor at the
input of the receiving circuit.
2, 4, 12, 14,
15, 17, 19,
23, 25, 27
DO2-, DO1-, DO10-, DO9-,
DO8-, DO7-,
DO6-, DO5-, DO4-, DO3-
Power Down. Drive PWRDN low to disable all outputs and reduce supply current
to 60µA. Drive PWRDN high for normal operation.
5
PWRDN
6, 9, 21
GND
Ground
10, 22
V
Power. Bypass each V
pin to GND with 0.1µF and 1nF ceramic capacitors.
CC
CC
7
8
RIN+
RIN-
LVDS Receiver Inputs. RIN+ and RIN- are high-impedance inputs. Connect a
resistor from RIN+ to RIN- to terminate the input signal.
transmission loop. Because the device switches the
Detailed Description
direction of current flow and not voltage levels, the out-
put voltage swing is determined by the total value of
the termination resistors multiplied by the output cur-
rent. With a typical 6.4mA output current, the MAX9150
produces a 320mV output voltage when driving a trans-
mission line terminated at each end with a 100 termi-
nation resistor (6.4mA x 50 = 320mV). Logic states
are determined by the direction of current flow through
the termination resistors.
The LVDS interface standard is a signaling method
intended for point-to-point communication over a con-
trolled impedance medium, as defined by the
ANSI/TIA/EIA-644 and IEEE 1596.3 standards. The
LVDS standard uses a lower voltage swing than other
common communication standards, achieving higher
data rates with reduced power consumption while
reducing EMI emissions and system susceptibility to
noise.
Fail-Safe
Fail-safe is a receiver feature that puts the output in a
known logic state (high) under certain fault conditions.
The MAX9150 outputs are differential high when the
inputs are undriven and open, terminated, or shorted
(Table 1).
The MAX9150 is a 400Mbps, 10-port LVDS repeater
intended for high-speed, point-to-point, low-power
applications. This device accepts an LVDS input and
repeats it on 10 LVDS outputs. The device is capable of
detecting differential signals as low as 100mV and as
high as 1V within a 0 to 2.4V input voltage range. The
LVDS standard specifies an input voltage range of 0 to
2.4V referenced to ground.
Table 1. Input/Output Function Table
The MAX9150 outputs use a current-steering configura-
tion to generate a 5mA to 9mA output current. This cur-
rent-steering approach induces less ground bounce
and no shoot-through current, enhancing noise margin
and system speed performance. The driver outputs are
short-circuit current limited, and are high impedance
(to ground) when PWRDN = low or the device is not
powered. The outputs have a typical differential resis-
tance of 240 .
INPUT, V
OUTPUTS, V
High
ID
OD
+100mV
-100mV
Open
Low
High
Short
High
Undriven
Terminated
High
Note: V = RIN+ - RIN-, V
= DO_+ - DO_-
OD
ID
High = 450mV > V
Low = -250mV > V
> 250mV
> -450mV
OD
OD
The MAX9150 current-steering architecture requires a
resistive load to terminate the signal and complete the
6
_______________________________________________________________________________________
Low-Jitter, 10-Port LVDS Repeater
tend to pick up noise as common mode, which is
Applications Information
rejected by the LVDS receiver.
Supply Bypassing
Termination
Bypass each of the V
pins with high-frequency sur-
CC
Termination resistors should match the differential char-
acteristic impedance of the transmission line. Since the
MAX9150 has current-steering devices, an output volt-
age will not be generated without a termination resistor.
Output voltage levels are dependent upon the value of
the total termination resistance. The MAX9150 pro-
duces LVDS output levels for point-to-point links that
are double terminated (100 at each end). With the
typical 6.4mA output current, the MAX9150 produces
an output voltage of 320mV when driving a transmis-
sion line terminated at each end with a 100 termina-
tion resistor (6.4mA x 50 = 320mV). Termination
resistance values may range between 90 and 150 ,
depending on the characteristic impedance of the
transmission medium.
face-mount ceramic 0.1µF and 1nF capacitors in paral-
lel as close to the device as possible, with the smaller
valued capacitor closest to the V
pins.
CC
Differential Traces
Output trace characteristics affect the performance of
the MAX9150. Use controlled impedance traces to
match trace impedance to both the transmission medi-
um impedance and termination resistor. Ensure that
noise couples as common mode by running the differ-
ential traces close together. Reduce skew by matching
the electrical length of the traces. Excessive skew can
result in a degradation of magnetic field cancellation.
Maintain the distance between the differential traces to
avoid discontinuities in differential impedance. Avoid
90° turns and minimize the number of vias to further
prevent impedance discontinuities.
Minimize the distance between the output termination
resistor and the corresponding MAX9150 transmitter
output. Use 1ꢀ surface-mount resistors.
Cables and Connectors
Transmission media should have a controlled differen-
tial impedance of 100 . Use cables and connectors
that have matched differential impedance to minimize
impedance discontinuities.
Minimize the distance between the input termination
resistor and the MAX9150 receiver input. Use a 1ꢀ
surface-mount resistor.
Chip Information
TRANSISTOR COUNT: 11,117
Avoid the use of unbalanced cables, such as ribbon or
simple coaxial cable. Balanced cables, such as twisted
pair, offer superior signal quality and tend to generate
less EMI due to canceling effects. Balanced cables
PROCESS : CMOS
Test Circuits and Timing Diagrams
DO1+
25
MAX9150
V
OD
V
OS
25
50
DO1-
DO10+
RIN+
GENERATOR
RIN-
25
25
V
OD
V
OS
50
DO10-
Figure 1. Driver-Load Test Circuit
_______________________________________________________________________________________
7
Low-Jitter, 10-Port LVDS Repeater
Test Circuits and Timing Diagrams (continued)
C
L
5pF
MAX9150
DO1+
DO1-
R
L
50
C
L
5pF
50
50
C
L
RIN+
RIN-
5pF
GENERATOR
DO10+
DO10-
R
L
50
C
L
5pF
Figure 2. Repeater Propagation Delay and Transition Time Test Circuit
R
IN-
V
CM
0
DIFFERENTIAL
V
ID
V
CM
R
IN+
t
t
PHLD
PLHD
80%
80%
50%
O
O
t
50%
V
DIFF
= (V
) - (V
)
DO_+
DO_-
20%
20%
t
TLH
THL
Figure 3. Propagation Delay and Transition Time Waveforms
8
_______________________________________________________________________________________
Low-Jitter, 10-Port LVDS Repeater
Test Circuits and Timing Diagrams (continued)
C
L
5pF
DO1+
R
L
25
MAX9150
R
25
L
1.2V
C
L
5pF
DO1-
1.1V
C
L
5pF
RIN+
RIN-
DO10+
1.0V
1.1V
R
L
25
1.0V
R
L
1.2V
C
L
5pF
25
DO10-
PWRDN
50
GENERATOR
Figure 4. Power-Up/Down Delay Test Circuit
3.0V
O
PWRDN
1.5V
1.5V
t
PD
t
PU
V
OH
50%
50%
50%
50%
V
V
WHEN V = +100mV
ID
DO_+
DO_-
WHEN V = -100mV
ID
1.2V
1.2V
V
DO_+
V
DO_-
WHEN V = -100mV
ID
WHEN V = +100mV
ID
V
OL
t
PU
t
PD
Figure 5. Power-Up/Down Delay Waveform
_______________________________________________________________________________________
9
Low-Jitter, 10-Port LVDS Repeater
Package Information
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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