SY58027UMGTR [MICREL]
ULTRA PRECISION DUAL 2:1 400mV LVPECL MUX WITH INTERNAL TERMINATION; 超精密双2 ： 1 400mV的LVPECL与内部终端MUX
| 型号： | SY58027UMGTR |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | ULTRA PRECISION DUAL 2:1 400mV LVPECL MUX WITH INTERNAL TERMINATION |
| 文件： | 总10页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
ULTRA PRECISION DUAL 2:1
400mV LVPECL MUX WITH
INTERNAL TERMINATION
®
Precision Edge
SY58027U
FEATURES
■ Two independent differential 2:1 multiplexers
■ Guaranteed AC performance over temperature and
®
Precision Edge
voltage:
• DC-to >10.7Gbps data rate throughput
DESCRIPTION
• < 290ps IN-to-Out t
pd
• < 80ps t / t
r
f
The SY58027U features two ultra-fast, low jitter 2:1
differential muxes with a guaranteed maximum data
throughput of 10.7Gbps.
■ Unique, patent-pending input isolation design
minimizes crosstalk
■ Ultra-low jitter design:
The SY58027U differential inputs include a unique
internal termination design that allows access to the
termination network through a VT pin. The device easily
interfaces to different logic standards, both AC- and DC-
coupled, without external resistor-bias and termination
networks. The result is a clean, stub-free, low jitter interface
solution. The differential 400mV LVPECL outputs have
extremely fast rise/fall times guaranteed to be less than
80ps.
• <1ps
random jitter
RMS
• <10ps deterministic jitter
PP
• <10ps total jitter (clock)
PP
• <0.7ps
crosstalk-induced jitter
RMS
■ Unique, patent-pending 50Ω input termination and
VT pin accepts DC-coupled and AC-coupled inputs
(CML, LVDS, PECL)
■ 400mV LVPECL output swing
The SY58027U operates from a 2.5V or 3.3V supply and
is guaranteed over the full industrial temperature range
(–40°C to +85°C). The SY58027U is part of Micrel’s Precision
■ Power supply 2.5V ±5% or 3.3V ±10%
■ –40°C to +85°C temperature range
®
■ Available in 32-pin (5mm × 5mm) MLF package
®
Edge product family.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
APPLICATIONS
■ Data communication systems
■ All SONET OC3-OC768 applications
■ All Fibre Channel applications
■ All GigE applications
FUNCTIONAL BLOCK DIAGRAM
INA0
INB0
50Ω
50Ω
VTA0
0
1
VTB0
0
1
50Ω
50Ω
/INA0
/INB0
QA
QB
VREF-ACA0
VREF-ACB0
MUX A
S
MUX B
S
/QA
/QB
INA1
INB1
50Ω
VTA1
50Ω
VTB1
50Ω
50Ω
/INA1
/INB1
VREF-ACA1
VREF-ACB1
SELA
SELB
(TTL/CMOS)
(TTL/CMOS)
AnyGate and Precision Edge are registered trademarks of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
Rev.: C
Amendment: /0
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
1
Issue Date: February 2007
Precision Edge®
SY58027U
Micrel, Inc.
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
Package Operating
Package
Marking
Lead
Finish
Part Number
Type
Range
SY58027UMI
MLF-32
MLF-32
MLF-32
Industrial
Industrial
Industrial
SY58027U
SY58027U
Sn-Pb
Sn-Pb
32 31 30 29 28 27 26 25
1
24
23
GND
VCC
QA
/QA
VCC
NC
INB0
VTB0
VREF-ACB0
SY58027UMITR(2)
SY58027UMG(3)
2
3
4
5
6
7
SY58027U with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
22
21
20
19
18
/INB0
INB1
VTB1
SY58027UMGTR(2, 3) MLF-32
Industrial
SY58027U with
Pb-Free bar-line indicator
Pb-Free
NiPdAu
VREF-ACB1
/INB1
SELA
VCC
8
17
9
10 11 12 13 14 15 16
Notes:
1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC electricals only.
2. Tape and Reel.
3. Pb-Free package recommended for new designs.
®
32-Pin MLF (MLF-32)
PIN DESCRIPTION
Pin Number
Pin Name
Pin Function
25, 28,
29, 32,
1, 4,
INA0, /INA0,
INA1, /INA1,
INB0, /INB0,
INB1, /INB1
Differential Inputs: These input pairs are the differential signal inputs to the device. Inputs
accept AC- or DC-coupled differential signals as small as 100mV. Each pin of a pair internally
terminates to a VT pin through 50Ω. Note that these inputs will default to an indeterminate
state if left open. Unused differential input pairs can be terminated by connecting one input
to VCC and the complementary input to GND through a 1kΩ resistor. The VT pin is to be
left open in this configuration. Please refer to the “Input Interface Applications” section for
more details.
5, 8
26, 30, 2, 6
18, 15
VTA0 , VTA1,
VTB0, VTB1
Input Termination Center-Tap: Each side of the differential input pair, terminates to a VT
pin. Each VT pin provides a center-tap to a termination network for maximum interface
flexibility. See “Input Interface Applications” section for more details.
SELA, SELB
Bank A, Bank B Input Channel Select (TTL/CMOS): These TTL/CMOS-compatible inputs
select the inputs to the multiplexers. These inputs are internally connected to a 25kΩ
pull-up resistor and will default to a logic HIGH state if left open. Input switching threshold
is VCC/2.
27, 31, 3, 7
VREF-ACA0,
VREF-ACA1,
VREF-ACB0,
VREF-ACB1
Reference Output Voltage: These outputs bias to VCC –1.2V. Connect to VT pin when
AC-coupling the data inputs. Bypass with 0.01µF low ESR capacitor to VCC. Maximum
current source or sink is 0.5mA. See “Input Interface Applications” section.
10, 13, 16,
17, 20, 23
VCC
Positive Power Supply: Bypass with 0.1µF 0.01µF low ESR capacitors.
22, 21,
12, 11
QA, /QA,
QB, /QB
Differential 100k LVPECL Outputs: MUX A and MUX B selected LVPECL outputs.
See “Output Interface Applications” section for termination. Refer to the “Truth Table” for
logic operation.
9, 24
GND,
Ground: Ground pins and exposed pad must be connected to the same ground plane.
Exposed pad
14, 19
NC
Not connected.
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
2
Precision Edge®
SY58027U
Micrel, Inc.
Absolute Maximum Ratings(1)
Operating Ratings(2)
Power Supply Voltage (V ) ...................... –0.5V to +4.0V
Power Supply Voltage (V ) ............... +2.375V to +2.625V
CC
CC
Input Voltage (V ) ......................................... –0.5V to V
............................................................ +3.0V to +3.6V
IN
CC
LVPECL Output Current (I
)
Ambient Temperature Range (T ) ............. –40°C to +85°C
OUT
A
Continuous .............................................................50mA
Surge....................................................................100mA
Package Thermal Resistance
®
MLF (θ
)
JA
(3)
Termination Current
Still-Air .............................................................35°C/W
500lpfm............................................................28°C/W
Source or sink current on V ..................................... ±100mA
Input Current
T
®
(4)
MLF (ψ
)
JB
Source or sink current on IN, /IN ..........................±50mA
Junction-to-board ............................................20°C/W
Current (V
)
REF-AC
(3)
Source or sink current on V
..................±1.5mA
REF-AC
Lead Temperature (soldering, 20 sec.) ..................... 260°C
Storage Temperature Range (T ) ........... –65°C to +150°C
S
(5)
DC ELECTRICAL CHARACTERISTICS
TA= –40°C to +85°C; Unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
VCC
Power Supply
VCC = 2.5V
VCC = 3.3V
2.375
3.0
2.5
3.3
2.625
3.6
V
V
ICC
Power Supply Current
No load, max. VCC
.
100
100
140
120
mA
RDIFF_IN
Differential Input Resistance
(IN-to-/IN)
80
Ω
RIN
Input Resistance
(IN-to-VT, /IN-to-VT)
40
VCC–1.2
0
50
60
VCC
Ω
V
V
V
V
VIH
Input High Voltage (IN, /IN)
Input Low Voltage (IN, /IN)
Input Voltage Swing (IN, /IN)
VIL
VIH –0.1
1.7
VIN
See Figure 1a.
See Figure 1b.
0.1
VDIFF_IN
Differential Input Voltage Swing
0.2
3.4
|IN – /IN|
VT IN
In to VT (IN, /IN)
1.28
V
V
VREF-AC
Output Reference Voltage
VCC–1.3 VCC–1.2 VCC–1.1
Notes:
1. Permanent device damage may occur if ratings in the “Absolute Maximum Ratings” section are exceeded. This is a stress rating only and functional
operation is not implied for conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings
conditions for extended periods may affect device reliability.
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Due to the limited drive capability, use for input of the same package only.
4. Junction-to-board resistance assumes exposed pad is soldered (or equivalent) to the device’s most negative potential (GND) on the PCB. Ψ uses 4-
JB
layer θ in still air unless otherwise stated.
JA
5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
3
Precision Edge®
SY58027U
Micrel, Inc.
(6)
LVPECL OUTPUTS DC ELECTRICAL CHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA = –40°C to +85°C; RL = 50Ω to VCC–2V, unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
VOH
Output HIGH Voltage
Q, /Q
VCC–1.145
—
VCC–0.895
V
VOL
Output LOW Voltage
Q, /Q
VCC–1.545
150
—
VCC–1.295
V
VOUT
Output Voltage Swing
Q, /Q
See Figure 1a.
See Figure 1b.
400
800
mV
mV
VDIFF-OUT
Differential Output Voltage Swing
|Q-/Q|
300
(6)
LVTTL/CMOS DC ELECTRICAL CHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to 85°C unless otherwise stated.
Symbol
VIH
Parameter
Condition
Min
Typ
Max
Units
V
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
2.0
VIL
0.8
75
V
IIH
–175
–300
µA
µA
IIL
VIL = 0V
Note:
6. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
4
Precision Edge®
SY58027U
Micrel, Inc.
(7)
AC ELECTRICAL CHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to +85°C; RL = 50Ω to VCC–2V, unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
fMAX
Maximum Operating Frequency
NRZ Data 10.7
Clock
Gbps
GHz
V
OUT ≥ 200mV
IN ≥ 300mV
7
tpd
Propagation Delay
IN-to-Q
V
140
100
215
220
6
290
400
15
20
100
1
ps
ps
SEL-to-Q
Input-to-Input Skew (Within-bank)
Bank-to-Bank Skew
tSKEW
Note 8
Note 9
Note 10
ps
8
ps
Part-to-Part Skew
ps
tJITTER
Data
Random Jitter (RJ) Note 11
Deterministic Jitter (DJ) Note 12
Cycle-to-Cycle Jitter (RJ) Note 13
Total Jitter (TJ) Note 14
psRMS
psPP
psRMS
psPP
10
1
Clock
10
Crosstalk-Induced Jitter
Channel-to-Channel Note 15, Within-bank.
0.7
80
psRMS
ps
tr, tf
Output Rise/Fall Time 20% to 80% At full swing.
20
55
Notes:
7. High-speed AC parameters are guaranteed by design and characterization. V swing ≥ 100mV unless otherwise noted.
IN
8. Input-to-input skew is the difference in time between two inputs to the output within a bank.
9. Bank-to-bank skew is the difference in time from input to the output between bank.
10. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the
respective inputs.
11. Random jitter is measured with a K28.7 comma detect character pattern, measured at 5Gbps and 2.5Gbps/3.2Gbps.
23
12. Deterministic jitter is measured at 2.5Gbps/3.2Gbps, with both K28.5 and 2 –1 PRBS pattern.
13. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, T –T
where T is the time between rising edges of the output
n–1
n
signal.
12
14. Total jitter definition: with an ideal clock input of frequency ≤ f
, no more than one output edge in 10 output edges will deviate by more than the
MAX
specified peak-to-peak jitter value.
15. Crosstalk is measured at the output while applying two similar frequencies that are asynchronous with respect to each other at the inputs.
TRUTH TABLES
INA0
/INA0
INA1
/INA1
SELA
QA
0
/QA
1
0
1
1
0
X
X
0
1
X
X
1
0
0
0
1
1
1
0
X
X
X
X
0
1
1
0
INB0
/INB0
INB1
/INB1
SELB
QB
0
/QB
1
0
1
1
0
X
X
0
1
X
X
1
0
0
0
1
1
1
0
X
X
X
X
0
1
1
0
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
5
Precision Edge®
SY58027U
Micrel, Inc.
SINGLE-ENDED AND DIFFERENTIAL SWINGS
VDIFF_IN
,
VIN,
VOUT
VDIFF_OUT
800mV (Typ.)
400mV (Typ.)
Figure 1a. Single-Ended Voltage Swing
Figure 1b. Differential Voltage Swing
TIMING DIAGRAM
INA0, INA1
/INA0, /INA1
tpd
QA
/QA
INB0, INB1
/INB0, /INB1
tpd
QB
/QB
SELA
SELA-to-QA
tpd
tpd
QA
/QA
SELB
SELB-to-QB
tpd
tpd
QB
/QB
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
6
Precision Edge®
SY58027U
Micrel, Inc.
TYPICAL OPERATING CHARACTERISTICS
V
= 3.3V, T = 25°C, R = 50Ω to V – 2V, DC coupled, unless otherwise stated.
A L CC
CC
2GHz Output
200MHz Output
TA = 25°C
TA = 25°C
VCC = 3.3V
VCC = 3.3V
/Q
Q
TIME (70ps/div.)
TIME (600ps/div.)
2.5Gbps Output
3.2Gbps Output
TA = 25°C
VCC = 3.3V
TA = 25°C
VCC = 3.3V
TIME (100ps/div.)
TIME (100ps/div.)
5Gbps Output
TA = 25°C
VCC = 3.3V
/Q
Q
TIME (50ps/div.)
Frequency
vs. Output Swing
Propagation Delay
vs. Temperature
500
230
220
210
200
190
180
170
160
150
HSTL (1000mV)
450
400
350
300
250
200
150
100
50
CML (200mV)
LVDS (400mV)
PECL (800mV)
SEL (1.6V)
0
-50 -25
0
25 50 75 100
TEMPERATURE (°C)
FREQUENCY (MHz)
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
7
Precision Edge®
SY58027U
Micrel, Inc.
INPUT AND OUTPUT STAGE INTERNAL TERMINATION
VCC
VCC
IN
50Ω
VT
GND
/Q
Q
50Ω
/IN
Figure 2a. Simplified Differential Input Stage
Figure 2b. Simplified LVPECL Output Stage
INPUT INTERFACE APPLICATIONS
VCC
VCC
IN
VCC
IN
LVPECL
LVPECL
/IN
/IN
VCC
IN
SY58027U
LVDS
Rp
Rp
SY58027U
0.01µF
GND
/IN
VT
GND
VCC
VT
SY58027U
Rp
NC
VREF-AC
GND
VREF-AC
GND
0.01µF
NC
NC
VT
GND
For VCC = 3.3V, Rp = 50Ω.
For VCC = 2.5V, Rp = 19Ω.
For VCC=3.3V, Rp = 100Ω.
For VCC=2.5V, Rp = 50Ω.
VREF-AC
Figure 3a. DC-Coupled
PECL Interface
Figure 3b. AC-Coupled
PECL Interface
Figure 3c. LVDS
Interface
VCC
VCC
IN
CML
IN
/IN
CML
SY58027U
/IN
GND
SY58027U
NC
NC
VT
GND
VCC
VREF-AC
VT
VREF-AC
Option: May connect VT to VCC
.
0.01µF
Figure 3e. AC-Coupled
CML Interface
Figure 3d. DC-Coupled
CML Interface
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
8
Precision Edge®
SY58027U
Micrel, Inc.
OUTPUT INTERFACE APPLICATIONS
+3.3V
R1
130Ω
R1
130Ω
+3.3V
+3.3V
+3.3V
+3.3V
ZO = 50Ω
ZO = 50Ω
ZO = 50Ω
ZO = 50Ω
VCC
50Ω
50Ω
50Ω
R2
R2
82Ω
82Ω
C (Optional)
0.01µF
Figure 4a. Parallel Thevenin-Equivalent
Termination
Figure 4b. Parallel Termination
(3-Resistor)
+3.3V
R1
130Ω
+3.3V
Terminate unused output
to VCC –2V to balance
the differential output pair.
R2
82Ω
Figure 4c. Terminating Unused Output
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
Part Number
Function
Data Sheet Link
SY58016L
3.3V 10Gbps Differential CML Line Driver/Receiver
with Internal Termination
http://www.micrel.com/product-info/products/sy58016l.shtml
SY58017U
10.7Gbps Differential CML 2:1 MUX with
Internal Termination
http://www.micrel.com/product-info/products/sy58017u.shtml
SY58018U
SY58019U
5Gbps LVPECL 2:1 MUX with Internal Termination
http://www.micrel.com/product-info/products/sy58018u.shtml
http://www.micrel.com/product-info/products/sy58019u.shtml
10.7Gbps 400mV LVPECL 2:1 MUX with
Internal Termination
SY58025U
SY58026U
SY58051U
SY58052U
10.7Gbps Dual 2:1 CML MUX with
Internal Termination
http://www.micrel.com/product-info/products/sy58025u.shtml
http://www.micrel.com/product-info/products/sy58026u.shtml
http://www.micrel.com/product-info/products/sy58051u.shtml
5Gbps Dual 2:1 LVPECL MUX with Internal
Termination
10.7Gbps AnyGate® with Internal Input and Output
Termination
10Gbps Clock/Data Retimer with 50Ω Input Termination
MLF™ Application Note
http://www.micrel.com/product-info/products/sy58052u.shtml
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
www.micrel.com/product-info/products/solutions.shtml
HBW Solutions New Products and Applications
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
9
Precision Edge®
SY58027U
Micrel, Inc.
®
32-PIN MicroLeadFrame (MLF-32)
Package
EP- Exposed Pad
Die
CompSide Island
Heat Dissipation
Heat Dissipation
VEE
Heavy Copper Plane
Heavy Copper Plane
®
VEE
PCB Thermal Consideration for 32-Pin MLF Package
(Always solder, or equivalent, the exposed pad to the PCB)
Package Notes:
1. Package meets Level 2 Moisture Sensitivity Classification.
2. All parts are dry-packaged before shipment.
3. Exposed pads must be soldered to a ground for proper thermal management.
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2005 Micrel, Incorporated.
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
10
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