TI SN65LVP20

SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
LVPECL AND LVDS REPEATER/TRANSLATOR WITH ENABLE
FEATURES
•
•
Low-Voltage PECL Input and Low-Voltage
PECL or LVDS Outputs
Signaling Rates to 4 Gbps or Clock Rates
to 2 GHz
– 120-ps Output Transition Times
– Less than 45 ps Total Jitter
– Less than 630 ps Propagation Delay Times
•
•
2.5-V or 3.3-V Supply Operation
2-mm x 2-mm Small-Outline
No-Lead Package
APPLICATIONS
•
•
PECL-to-LVDS Translation
Data or Clock Signal Amplification
DESCRIPTION
The SN65LVDS20 and SN65LVP20 are a high-speed differential receiver and driver connected as a repeater.
The receiver accepts low-voltage positive-emitter-coupled logic (PECL) at signaling rates up to 4 Gbps and
repeats it as either an LVDS or PECL output signal. The signal path through the device is differential for low
radiated emissions and minimal added jitter.
The outputs of the SN65LVDS20 are LVDS levels as defined by TIA/EIA-644-A. The outputs of the
SN65LVDP20 are compatible with low-voltage PECL levels. A low-level input to EN enables the outputs. A
high-level input puts the output into a high-impedance state. Both outputs are designed to drive differential
transmission lines with nominally 100-Ω characteristic impedance.
Both devices provide a voltage reference (VBB) of typically 1.35 V below VCC for use in receiving single-ended
PECL input signals. When not used, VBB should be unconnected or open.
All devices are characterized for operation from -40°C to 85°C.
FUNCTION DIAGRAM
7
A
6
B
VCC
IN
OUT
4
Y
Z
Scale = 75 mV/div
EN
VBB
GND
9
Scale = 50 ps/div
Figure 1. SN65LVDS20 Output Eye Pattern With
4-Gbps PRBS Input
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004–2005, Texas Instruments Incorporated
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
AVAILABLE OPTIONS (1)
(1)
INPUT
OUTPUT
PART NUMBER
PART MARKING
Differential
LVDS
SN65LVDS20
E8
Differential
LVPECL
SN65LVP20
E7
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
(2)
VCC
Supply voltage
-0.5 V to 4 V
VI
Input voltage
-0.5 V to VCC + 0.5 V
VO
Output voltage
-0.5 V to VCC + 0.5 V
IO
VBB output current
±0.5 mA
HBM electrostatic discharge (3)
CDM electrostatic
±3 kV
discharge (4)
±1500 V
Continuous power dissipation
(1)
(2)
(3)
(4)
See Power Dissipation Ratings Table
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 under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values, except differential voltages, are with respect to network ground (see Figure 2).
Tested in accordance with JEDEC Standard 22, Test Method A114-A-7
Tested in accordance with JEDEC Standard 22, Test Method C101
DISSIPATION RATINGS
PACKAGE
TA < 25°C
POWER RATING
OPERATING FACTOR
ABOVE TA = 25°C
TA = 85°C
POWER RATING
DRF
403 mW
4.0 mW/°C
161 mW
RECOMMENDED OPERATING CONDITIONS
VCC
Supply Voltage
VIC
Common-mode input voltage (VIA + VIB)/2
|VID|
Differential input voltage magnitude, |VIA - VIB|
VIH
High-level input voltage, EN
VIL
Low-level input voltage, EN
IO
Output current to VBB
RL
Differential load resistance
TA
Operating free-air temperature
(1)
2
MIN
NOM
MAX
2.375
2.5 or 3.3
3.6
V
VCC - (VID/2)
V
0.08
1
V
2
VCC
V
0
0.8
V
-400 (1)
400
µA
90
132
Ω
-40
85
°C
1.2
The algebraic convention, where the least positive (more negative) value is designated minimum, is used in this data sheet.
UNIT
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
ELECTRICAL CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
TYP (1)
MAX
RL = 100 Ω, EN at 0 V,
Other inputs open
35
45
Outputs unloaded,
EN at 0 V,
Other inputs open
19
24
116
160
63
86
VCC - 1.35
VCC - 1.25
PARAMETER
ICC
Supply current
TEST CONDITIONS
MIN
mA
Device power dissipation,
SN65LVDS20
RL = 100 Ω, EN at 0 V, 2-GHz
50%-duty-cycle square-wave input
Device power dissipation,
SN65LVP20
50 Ω from Y and Z to
VCC - 2 V, EN at 0 V,
2-GHz 50%-duty-cycle
square-wave input
VBB
Reference voltage
IBB = ±400 µA
IIH
High-level input current, EN
VI = 2 V
-20
20
IIAH or IIBH
High-level input current, A or B
VI = VCC
-20
20
IIL
Low-level input current, EN
VI = 0.8 V
-20
20
IIAL or IIBL
Low-level input current, A or B
VI = GND
-20
20
PD
UNIT
mW
VCC - 1.44
V
µA
SN65LVDS20 OUTPUT CHARACTERISTICS (see Figure 2)
|VOD|
Differential output voltage magnitude,
|VOY - VOZ|
∆|VOD|
Change in differential output voltage
magnitude between logic states
VOC(SS)
Steady-state common-mode output
voltage (see Figure 3)
∆VOC(SS)
Change in steady-state common-mode output voltage between
logic states
247
340
454
mV
See Figure 2
50
1.125
1.375
-50
50
See Figure 3
V
mV
VOC(PP)
Peak-to-peak common-mode output
voltage
IOYZ or IOZZ
High-impedance output current
EN at VCC, VO = 0 V or VCC
-1
1
IOYS or IOZS
Short-circuit output current
EN at 0 V, VOY or VOZ = 0 V
-62
62
IOS(D)
Differential short-circuit output current, |IOY - IOZ|
EN at 0 V,
VOY = VOZ
-12
12
VCC - 1.05
VCC - 0.82
VCC - 1.83
VCC - 1.57
VCC - 1.88
VCC - 1.57
50
100
µA
mA
SN65LVP20 OUTPUT CHARACTERISTICS (see Figure 2)
VOYH or
VOZH
High-level output voltage
VOYL or
VOZL
Low-level output voltage
VOYL or
VOZL
Low-level output voltage
|VOD|
Differential output voltage magnitude,
|VOH - VOL|
IOYZ or IOZZ
High-impedance output current
(1)
3.3 V; 50 Ω from Y and Z
to VCC - 2 V
2.5 V; 50 Ω from Y and Z
to VCC - 2 V
V
0.6
EN at VCC, VO = 0 V or VCC
-1
0.8
1
1
µA
Typical values are at room temperature and with a VCC of 3.3 V.
3
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
tPLH
Differential propagation delay time,
low-to-high-level output
tPHL
Differential propagation delay time,
high-level-to-low-level output
tSK(P)
Pulse skew, |tPLH - tPHL|
tSK(PP)
Part-to-part skew
tr
20%-to-80% differential signal rise time
tf
20%-to-80% differential signal fall time
tjit(per)
RMS period jitter (3)
See Figure 2 and Figure 4
(2)
300
450
630
300
450
630
VCC = 3.3 V
80
VCC = 2.5 V
130
LVDS, See Figure 2 and Figure 4
85
115
LVPECL, See Figure 2 and Figure 4
92
120
LVDS, See Figure 2 and Figure 4
85
115
LVPECL, See Figure 2 and Figure 4
92
120
2
3
13
16
37
45
2-GHz 50%-duty-cycle square-wave input,
See Figure 5
(4)
Peak cycle-to-cycle jitter
tjit(p-p)
Peak-to-peak jitter
tjit(ph)
Intrinsic phase jitter
tPHZ
Propagation delay time,
high-level-to-high-impedance output
tPLZ
Propagation delay time,
low-level-to-high-impedance output
LVDS; 4 Gbps PRBS, 223- 1 run length,
See Figure 5
Propagation delay time,
high-impedance-to-high-level output
tPZL
Propagation delay time,
high-impedance-to-low-level output
155.52 MHz
0.62
622.08 MHz
0.14
ps
ps
ps
ps
ps
ps
ps
30
See Figure 2 and Figure 6
ns
30
30
Typical values are at room temperature and with a VCC of 3.3 V.
Part-to-part skew is the magnitude of the difference in propagation delay times between any specified terminals of two devices when
both devices operate with the same supply voltages, at the same temperature, and have identical packages and test circuits.
Period jitter is the deviation in cycle time of a signal with respect to the ideal period over a random sample of 100,000 cycles.
Cycle-to-cycle jitter is the variation in cycle time of a signal between adjacent cycles, over a random sample of 1,000 adjacent cycle
pairs.
PARAMETER MEASUREMENT INFORMATION
ICC
1
IIA
2
IIB
3
5
II
VIA
VIB
VCC
B
8
4
VCC V BB
6
Z
D.U.T.
7
Y
EN
GND
NC
A
IBB
50
I OZ
S1
I OY
9
VI
50
+
+
+
+
VOY
VOZ
VBB
VOC
−
−
−
−
(1)
CL is the instrumentation and test fixture capacitance.
(2)
S1 is open for the SN65LVDS20 and closed for the SN65LVP20.
CL
VCC − 2 V
Figure 2. Output Voltage Test Circuit and Voltage and Current Definitions
4
UNIT
30
tPZH
(3)
(4)
MAX
20
tjit(cc)
(1)
(2)
MIN TYP (1)
TEST CONDITIONS
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
PARAMETER MEASUREMENT INFORMATION (continued)
INPUT
dVOC(SS) VOC(PP)
VOC
Figure 3. VOC Definitions
VCC
1.2 V
1.125 V
VIA
1.5 V
VIB
t PHL
t PLH
VOY − VOZ
80%
100%
50%
tf
tr
20%
Figure 4. Propagation Delay and Transition Time Test Waveforms
50 Cable, X Y cm, SMA Coax
Connectors, 4 Places
HP3104 Pattern
Generator
Note A
TDS Oscilloscope with
TJIT3 Analysis Pack
Device Under Test
50 50 DC
Figure 5. Jitter Measurement Setup
5
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
PARAMETER MEASUREMENT INFORMATION (continued)
VCC
1.2 V
VIA
1.5 V
VIB
VI to EN
2V
1.4 V
t PZH
t PZL
0.8 V
t PHZ
t PLZ
0V
VOY − VOZ
80%
50%
20%
Figure 6. Enable and Disable Time Test Waveforms
DEVICE INFORMATION
FUNCTION TABLE (1)
B
EN
Y
Z
H
H
L
?
?
L
H
L
L
H
H
L
L
H
L
L
L
L
?
?
X
X
H
Z
Z
Open
Open
L
?
?
X
X
Open
?
?
(1)
6
A
H = high, L = low, Z = high
impedance, ? = indeterminate
100%
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
TOP VIEW
1
4
9
8
5
BOTTOM VIEW
Package Pin Assignments - Numerical Listing
PIN
SIGNAL
PIN
1
NC
6
SIGNAL
Z
2
A
7
Y
3
B
8
VCC
4
VBB
9
GND
5
EN
Package Pin Assignments - Alphabetical Listing
SIGNAL
PIN
SIGNAL
PIN
A
2
VBB
4
B
3
VCC
8
EN
5
Y
7
GND
9
Z
6
NC
1
7
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
FREQUENCY
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
60
50
I CC − Supply Current − mA
I CC − Supply Current − mA
60
LVP20 = Loaded
40
LVDS20
30
20
50
LVP20 = Loaded
LVDS20
40
30
20
10
10
0
400
800
1200
1600
−40
2000
40
60
80
DIFFERENTIAL OUTPUT VOLTAGE
vs
FREQUENCY
LVDS20 RISE/FALL TIME
vs
FREE-AIR TEMPERATURE
100
105
900
800
LVP20
700
tr/tf − Rise/Fall Time − ps
V OD − Differential Output Voltage − mV
20
Figure 8.
600
500
400
LVDS20
300
200
97
89
tr
81
tf
73
100
0
65
−40
500 1000 1500 2000 2500 3000 3500 4000
f − Frequency − MHz
100
Figure 10.
LVP20 RISE/FALL TIME
vs
FREE-AIR TEMPERATURE
LVDS20 PROPAGATION DELAY TIME
vs
FREE-AIR TEMPERATURE
Propagation Delay Time − ps
500
97
tf
89
tr
81
73
65
−40
−20
0
20
40
60
80
TA − Free−Air Temperature − C
Figure 9.
105
tr/tf − Rise/Fall Time − ps
0
Figure 7.
0
−20
0
20
40
60
80
TA − Free−Air Temperature − C
Figure 11.
8
−20
TA − Free−Air Temperature − C
f − Frequency − MHz
100
476
tPHL
452
tPLH
428
404
380
−40
−20
0
20
40
60
80
TA − Free−Air Temperature − C
Figure 12.
100
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS (continued)
LVP20 PROPAGATION DELAY TIME
vs
FREE-AIR TEMPERATURE
PERIOD JITTER
vs
FREQUENCY
5
476
4
tPHL
Period Jitter − ps
Propagation Delay Time − ps
500
452
tPLH
428
3
LVDS20
2
LVP20
1
404
380
−40
0
−20
0
20
40
60
80
0
100
400
1200
1600
Figure 13.
Figure 14.
PEAK-TO-PEAK JITTER
vs
FREQUENCY
PEAK-TO-PEAK JITTER
vs
DATA RATE
2000
50
25
40
20
Peak-to-Peak Jitter − ps
Peak-to-Peak Jitter − ps
800
f − Frequency − MHz
TA − Free−Air Temperature − C
LVDS20
15
LVP20
10
5
LVP20
30
20
LVDS20
10
0
0
0
400
800
1200
1600
f − Frequency − MHz
0
2000
1600
2400
3200
4000
Data Rate − Mbps
Figure 15.
Figure 16.
Scale = 175 mV/div
Scale = 75 mV/div
800
Scale = 50 ps/div
Figure 17. LVDS20 4-Gbps, 223 - 1 PRBS
Scale = 50 ps/div
Figure 18. LVP20 4-Gbps, 223 - 1 PRBS
9
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
TYPICAL CHARACTERISTICS (continued)
PHASE NOISE OF SN65LVP20
PHASE NOISE OF SN65LVP20
−40
−40
−50
−60
−50
Blue = Device
Green = Source
−60
−70
−80
−80
−90
−90
−100
−100
−110
−110
−120
−120
−130
−130
−140
−140
−150
−150
−160
100
1k
10 k
100 k
1M
10 M
100 M
Figure 19. Frequency Offset From 155.52 MHz Carrier
10
Blue = Device
Green = Source
−70
−160
100
1k
10 k
100 k
1M
10 M
100 M
Figure 20. Frequency Offset From 622.08 MHz Carrier
SN65LVDS20
SN65LVP20
www.ti.com
SLLS620A – JUNE 2004 – REVISED SEPTEMBER 2005
EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS
OUTPUT LVP20
OUTPUT LVDS20
VCC
R
VCC
VCC
VCC
VCC
R
Y
VCC
Y
7V
Z
Z
7V
7V
7V
ENABLE
VCC
400 Ω
300 kΩ
7V
INPUT
VCC
OUTPUT
VBB
VCC
A
VCC
VCC
B
VBB
VBB
11
PACKAGE OPTION ADDENDUM
www.ti.com
18-Jul-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
SN65LVDS20DRFR
ACTIVE
SON
DRF
8
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVDS20DRFRG4
ACTIVE
SON
DRF
8
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVDS20DRFT
ACTIVE
SON
DRF
8
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVDS20DRFTG4
ACTIVE
SON
DRF
8
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVP20DRFR
ACTIVE
SON
DRF
8
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVP20DRFRG4
ACTIVE
SON
DRF
8
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVP20DRFT
ACTIVE
SON
DRF
8
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN65LVP20DRFTG4
ACTIVE
SON
DRF
8
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
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information may not be available for release.
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Addendum-Page 1
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