SY56016R
Low Voltage 1.2V/1.8V/2.5V CML Differential
Line Driver/Receiver 6.4Gbps with Equalization
General Description
The SY56016R is a fully differential, low voltage
1.2V/1.8V/2.5V CML Line Driver/Receiver with input
equalization. The SY56016R can process clock signals as
fast as 5.0GHz or data patterns up to 6.4Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that interfaces to CML differential
signals, without any level-shifting or termination resistor
networks in the signal path. The differential input can also
accept AC-coupled CML, LVPECL, and LVDS signals.
Input voltages as small as 200mV (400mV
PP
) are applied
before the 9”, 18” or 27” FR4 transmission line. For AC-
coupled input interface applications, an internal voltage
reference is provided to bias the V
T
pin. The outputs are
CML, with extremely fast rise/fall times guaranteed to be
less than 80ps.
The SY56016R operates from a 2.5V ±5% core supply and
a 1.2V, 1.8V or 2.5V ±5% output supply and is guaranteed
over the full industrial temperature range (–40°C to
+85°C). The SY56016R is part of Micrel’s high-speed,
®
Precision Edge product line.
Datasheets and support documentation can be found on
Micrel’s web site at:
www.micrel.com.
Precision Edge
®
Features
∑
1.2V/1.8V/2.5V CML Differential Line Driver/Receiver
with Equalization
∑
Equalizes 9, 18, 27 inches of FR4
∑
Guaranteed AC performance over temperature and
voltage:
– DC-to >6.4Gbps Data throughput
– DC-to >5.0GHz Clock throughput
– <250ps propagation delay (IN-to-Q)
– <80ps rise/fall times
∑
Ultra-low jitter design
– <1ps
RMS
random jitter
∑
High-speed CML outputs
∑
2.5V ±5% V
CC
, 1.2V/1.8V/2.5V ±5% V
CCO
power supply
operation
∑
Industrial temperature range: –40°C to +85°C
®
∑
Available in 10-pin (2mm x 2mm) MLF package
Applications
∑
∑
∑
∑
∑
∑
∑
∑
∑
Data Distribution:
SONET clock and data distribution
Fibre Channel clock and data distribution
Gigabit Ethernet clock and data distribution
Functional Block Diagram
Markets
Storage
Test and measurement
Enterprise networking equipment
High-end servers
Metro area network equipment
Precision Edge is a registered trademark of Micrel, Inc
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
December 2008
M9999-121708-A
hbwhelp@micrel.com
or (408) 955-1690
Micrel, Inc.
SY56016R
Ordering Information
Part Number
SY56016RMG
SY56016RMGTR
Note:
1. Contact factory for die availability. Dice are guaranteed at T
A
= 25°C, DC Electricals only.
2. Tape and Reel.
(2)
Package
Type
MLF-10
MLF-10
Operating
Range
Industrial
Industrial
Package Marking
R016 with
Pb-Free bar-line indicator
R016 with
Pb-Free bar-line indicator
Lead
Finish
NiPdAu
Pb-Free
NiPdAu
Pb-Free
Pin Configuration
Truth Table
EQ
LOW
FLOAT
HIGH
Equalization
9”
18”
27”
10-Pin MLF (MLF-10)
®
Pin Description
Pin Number
2, 3
Pin Name
IN, /IN
Pin Function
Differential Input: Signals as small as 200mV V
PK
(400mV
PP
) can be applied to the input of
9, 18 or 27 inches 6 mil FR4 stripline transmission line. They are then terminated at the
differential input internally with 50Ω to the VT pin.
Input Termination Center-Tap: Each side of the differential input pair terminates to VT pin.
This pin provides a center-tap to a termination network for maximum interface flexibility. An
internal high impedance resistor divider biases VT to allow input AC coupling. For AC
coupling, bypass VT with 0.1µF low ESR capacitor to VCC. See “Interface Applications”
subsection and Figure 2a.
Three level input for equalization control. High, float, low.
Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
CC
pin as possible. Supplies input and core circuitry.
Output Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
CCO
pins as
possible. Supplies the output buffer.
Ground: Exposed pad must be connected to a ground plane that is the same potential as
the ground pin.
CML Differential Output Pair: Differential buffered copy of the input signal. The output swing
is typically 390mV. See “Interface Applications” sub-section for termination information.
1
VT
4
10
6, 9
5
8, 7
EQ
VCC
VCCO
GND,
Exposed pad
Q0, /Q0
December 2008
2
M9999-121708-A
hbwhelp@micrel.com
or (408) 955-1690
Micrel, Inc.
SY56016R
Absolute Maximum Ratings
(1)
Supply Voltage (V
CC
) ................................. –0.5V to +3.0V
Supply Voltage (V
CCO
) ............................... –0.5V to +3.0V
V
CC
- V
CCO
........................................................... <1.8V
V
CCO
- V
CC
........................................................... <0.5V
Input Voltage (V
IN
) ......................................... –0.5V to V
CC
CML Output Voltage (V
OUT
)................. 0.6V to V
CCO
+0.5V
Current (V
T
)
Source or sink current on VT pin .................. ±100mA
Input Current
Source or sink current on (IN, /IN) .................. ±50mA
Maximum operating Junction Temperature.............125°C
Lead Temperature (soldering, 20sec.) ....................260°C
Storage Temperature (T
s
) ........................... –65°C to +150°C
Operating Ratings
(2)
Supply Voltage (V
CC
) .................................. 2.375V to 2.625V
(V
CCO
) .................................... 1.14V to 2.625V
Ambient Temperature (T
A
) ............................–40°C to +85°C
(3)
Package Thermal Resistance
®
MLF
Still-air (q
JA
) ....................................................... 93°C/W
Junction-to-board (y
JB
)..................................... 56°C/W
DC Electrical Characteristics
(4)
T
A
= –40°C to +85°C, unless otherwise stated
Symbol
V
CC
Parameter
Power Supply Voltage Range
Condition
V
CC
V
CCO
V
CCO
V
CCO
I
CC
I
CCO
R
IN
R
DIFF_IN
V
IH
V
IL
V
IN
V
DIFF_IN
V
T_IN
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most negative potential on the PCB.
y
JB
and
q
JA
values
are determined for a 4-layer board in still-air number, unless otherwise stated.
4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
5.
1.7V represents the V
CC
(min) value and 0.475V represents the maximum swing on a CML output. The difference between 1.7V and 0.475V is the
V
IL
(min) needed for normal operation.
Min
2.375
1.14
1.7
2.375
Typ
2.5
1.2
1.8
2.5
30
16
Max
2.625
1.26
1.9
2.625
42
21
55
110
V
CC
V
IH
–0.2
1.0
2.0
1.28
Units
V
V
V
V
mA
mA
Ω
Ω
V
V
V
V
V
Power Supply Current
Power Supply Current
Input Resistance
(IN-to-V
T
, /IN-to-V
T
)
Differential Input Resistance
(IN-to-/IN)
Input HIGH Voltage
(IN, /IN)
Input LOW Voltage
(IN, /IN)
(5)
Max. V
CC
No Load. V
CCO
>1.7V
45
90
1.42
1.22V = 1.7V-0.475V
See Figure 3a, applied to input of transmission
line.
See Figure 3b, applied to input of transmission
line.
1.22
0.2
0.4
50
100
Input Voltage Swing
(IN, /IN)
Differential Input Voltage Swing
(|IN - /IN|)
Voltage from Input to V
T
December 2008
3
M9999-121708-A
hbwhelp@micrel.com
or (408) 955-1690
Micrel, Inc.
SY56016R
CML Outputs DC Electrical Characteristics
(6)
V
CCO
= 1.14V to 1.26V R
L
= 50Ω to V
CCO,
V
CCO
= 1.7V to 1.9V, 2.375V to 2.625V, R
L
= 50Ω to V
CCO
or 100Ω across the outputs,
V
CC
= 2.375V to 2.625V. T
A
= –40°C to +85°C, unless otherwise stated.
Symbol
V
OH
V
OUT
V
DIFF_OUT
R
OUT
Parameter
Output HIGH Voltage
Output Voltage Swing
Differential Output Voltage Swing
Output Source Impedance
Condition
R
L
= 50Ω to V
CCO
See Figure 3a
See Figure 3b
Min
V
CCO
-0.020
300
600
45
Typ
V
CCO
-0.010
390
780
50
Max
V
CCO
475
950
55
Units
V
mV
mV
Ω
Three Level EQ Input DC Electrical Characteristics
(6)
V
CC
= 2.375V to 2.625V. T
A
= –40°C to +85°C, unless otherwise stated.
Symbol
V
IH
V
IL
I
IH
I
IL
Notes:
6. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
Parameter
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
Condition
Min
V
CC
-0.3
0
Typ
Max
V
CC
V
EE
+
0.3
400
Units
V
V
µA
µA
V
IH
= V
CC
V
IL
= GND
-480
December 2008
4
M9999-121708-A
hbwhelp@micrel.com
or (408) 955-1690
Micrel, Inc.
SY56016R
AC Electrical Characteristics
V
CCO
= 1.14V to 1.26V R
L
= 50Ω to V
CCO,
V
CCO
= 1.7V to 1.9V, 2.375V to 2.625V, R
L
= 50Ω to V
CCO
or 100Ω across the outputs,
V
CC
= 2.375V to 2.625V. T
A
= –40°C to +85°C, unless otherwise stated.
Symbol
f
MAX
t
PD
t
SKEW
t
JITTER
t
r,
t
f
Notes:
7.
8.
9.
Propagation delay is measured with no attenuating transmission line connected to the input.
Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and input transition.
Random jitter is measured with a K28.7 pattern, measured at
≤
f
MAX
.
Parameter
Maximum Frequency
Propagation Delay
Part-to-Part Skew
Data
Random Jitter
Output Rise/Fall Times
(20% to 80%)
IN-to-Q
Condition
NRZ Data
V
OUT
> 200mV
Note 7, Figure 1
Note 8
Note 9
At full output swing.
Clock
Min
6.4
5.0
100
Typ
Max
Units
Gbps
GHz
150
250
100
1
ps
ps
ps
RMS
ps
20
50
80
Timing Diagram
Figure 1. Propagation Delay
December 2008
5
M9999-121708-A
hbwhelp@micrel.com
or (408) 955-1690
ARM技术
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