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Micrel, Inc.
ULTRA-PRECISION DIFFERENTIAL CML LINE DRIVER/RECEIVER WITH INTERNAL TERMINATION
Precision Edge(R) SY58600U Precision Edge(R)
SY58600U
FEATURES
Guaranteed AC performance over temperature and voltage: * DC-to >10.7Gbps data rate throughput * DC-to >7GHz clock fMAX * <220ps in-to-out tpd * tr / tf <60ps Ultra low-jitter design: * <1psRMS random jitter * <10psPP deterministic jitter * <10ps total jitter (clock)
PP
Precision Edge(R)
DESCRIPTION
The SY58600U is a 2.5V/3.3V precision, high-speed, differential receiver capable of handling clocks up to 7GHz and data streams up to 10.7Gbps. The differential input includes Micrel's unique, 3-pin input termination architecture that allows users to interface to any differential signal (AC or DC-coupled) as small as 200mVpp without any level shifting or termination resistor networks in the signal path. The outputs are 400mV CML, with extremely fast rise/fall times guaranteed to be less than 60ps. The SY58600U operates from a 2.5V 5% supply or a 3.3V 10% supply and is guaranteed over the full industrial temperature range of -40C to +85C. For applications that require 800mV LVPECL outputs, consider the SY58601U or for 400mV LVPECL outputs the SY58602U. The SY58600U is part of Micrel's high-speed, Precision Edge(R) product line. All support documentation can be found on Micrel's web site at www.micrel.com.
Minimum input swing 200mV (|IN-/IN|) Unique, patent-pending input termination and VT pin accepts DC-coupled and AC-coupled inputs (CML, PECL, LVDS) Internal 50 output source termination Typical 400mV CML output swing Power supply 2.5V 5% or 3.3V 10% -40C to 85C industrial temperature range Available in an ultra-small (2mm x 2mm) 8-pin MLF(R) package
APPLICATIONS
Backplane buffering OC-12 to OC-192 SONET/SDN clock/data distribution All Gigabit Ethernet distribution Fibre Channel distribution
FUNCTIONAL BLOCK DIAGRAM
TYPICAL APPLICATION
IN 50 VT 50 /IN VREF-AC Q
Backplane
SY58600U
100mV Input Swing
400mV Output Swing
/Q
400mV 100mV
Input Waveform Output Waveform
Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-082707 hbwhelp@micrel.com or (408) 955-1690
Rev.: C Amendment: /0
1
Issue Date: August 2007
Micrel, Inc.
Precision Edge(R) SY58600U
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
IN 1 VT 2 VREF-AC 3 /IN 4
8 VCC 7Q 6 /Q 5 GND
Part Number SY58600UMITR(2) SY58600UMGTR(2, 3)
Notes:
Package Type MLF-8 MLF-8
Operating Range Industrial Industrial
Package Marking 600 600 with Pb-Free bar-line indicator
Lead Finish Sn-Pb Pb-Free NiPdAu
8-Pin MLF(R) (MLF-8)
1. Contact factory for die availability. Dice are guaranteed at TA = 25C, DC electricals only. 2. Tape and Reel. 3. Pb-Free package recommended for new designs.
PIN DESCRIPTION
Pin Number 1, 4 Pin Name IN, /IN Pin Function Differential Input: This input pair is the signal to be buffered. These inputs accept AC or DCcoupled signals as small as 100mV. Each pin of this pair internally terminates to a VT pin through 50. Note that this input will default to an indeterminate state if left open. Please refer to the "Input Interface Applications" section for more details. Input Termination Center-Tap: Each side of the differential input pair terminates to this pin. The VT pin provides a center-tap to a termination network for maximum interface flexibility. See "Input Interface Applications" section for more details. Reference Output Voltage: This output biases to VCC -1.2V. Connect to VT pin when ACcoupling the input. Bypass with 0.01F low ESR capacitor to VCC. Maximum current source or sink is 0.5mA. See "Input Interface Applications" section. Positive Power Supply. Bypass with 0.1F||0.01F low ESR capacitors as close to the VCC pin as possible. Differential CML Output: Differential buffered output copy of the input signal. The differential output swing is typically 800mV into a 50 load, or 100 across the pair. See "Output Interface Applications" section. Ground. Ground pin and exposed pad must be connected to the same ground plane.
2
VT
3
VREF-AC
8 7, 6
VCC Q, /Q
5
GND, Exposed
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Micrel, Inc.
Precision Edge(R) SY58600U
Absolute Maximum Ratings(1)
Supply Voltage (VCC) .................................. -0.5V to +4.0V Input Voltage (VIN) ......................................... -0.5V to VCC CML Output Voltage (VOUT) ......... VCC -1.0V to VCC +0.5V Termination Current(3) Source or Sink Current on VT .................................... 100mA Input Current Source or Sink Current on IN, /IN ........................ 50mA Current (VREF) Source or Sink Current on VREF-AC .................. 1.5mA Lead Temperature (soldering, 20 sec.) ................... +260C Storage Temperature (TS) ....................... -65C to +150C
Operating Ratings(2)
Supply Voltage (VCC) ...................... +2.375V to +2.625V or ............................................................ +3.0V to +3.6V Ambient Temperature (TA) ......................... -40C to +85C Package Thermal Resistance(4) MLF(R) (JA) Still-Air ............................................................. 93C/W MLF(R) (JB) Junction-to-Board ............................................ 32C/W
DC ELECTRICAL CHARACTERISTICS(5)
TA = -40C to +85C, unless otherwise noted. Symbol VCC ICC RDIFF_IN RIN VIH VIL VIN VDIFF_IN VT_IN VREF-AC
Notes: 1. Permanent device damage may occur if the ratings in "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. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most negative potential on the PCB. JB uses 4-layer JA in still-air, unless otherwise stated. 5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. 6. Includes current through internal 50 pull-ups. 7. VIH (min) not lower than 1.2V.
Parameter Power Supply Power Supply Current Differential Input Resistance (IN-to-/IN) Input Resistance (IN-to-VT, /IN-to-VT) Input HIGH Voltage (IN, /IN) Input LOW Voltage (IN, /IN) Input Voltage Swing (IN, /IN) Differential Input Voltage Swing |IN-, /IN| In-to-VT (IN, /IN) Output Reference Voltage
Condition VCC = 2.5V VCC = 3.3V No Load, max. VCC, Note 6
Min 2.375 3.0
Typ 2.5 3.3 45
Max 2.625 3.6 65 120 60 VCC VIH -0.1 1.7
Units V V mA V V V V
80 40 Note 7 VCC -1.6 0 See Figure 1a. See Figure 1b. 0.1 0.2
100 50
1.28 VCC -1.3 VCC -1.2 VCC -1.1
V V
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Micrel, Inc.
Precision Edge(R) SY58600U
CML OUTPUTS DC ELECTRICAL CHARACTERISTICS(8)
VCC = 2.5V 5% or 3.3V 10%; TA = -40C to +85C; RL = 100 across output pair or equivalent, unless otherwise noted. Symbol VOH VOUT VDIFF_OUT ROUT Parameter Output HIGH Voltage Q, /Q Output Voltage Swing Q, /Q Differential Output Voltage Swing Q, /Q Output Source Impedance Q, /Q See Figure 1a. See Figure 1b. Condition Min Typ Max VCC Units V mV mV 60 VCC-0.020 VCC-0.010 325 650 40 400 800 50
AC ELECTRICAL CHARACTERISTICS(9)
VCC = 2.5V 5% or 3.3V 10%; TA = -40C to +85C; RL = 100 across output pair or equivalent, unless otherwise noted. Symbol fMAX tpd tpd Tempco tJITTER Parameter Maximum Operating Frequency VOUT 200mV Propagation Delay Differential Propagation Delay Temperature Coefficient Data Random Jitter (RJ) Deterministic Jitter (DJ) Clock Cycle-to-Cycle Jitter Total Jitter (TJ) tr, tf
Notes: 8. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. 9. High frequency AC electricals are guaranteed by design and characterization. 10. Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps. 11. Deterministic jitter is measured at 2.5Gbps/3.2Gbps with both K28.5 and 223-1 PRBS pattern. 12. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn-Tn-1 where T is the time between rising edges of the output signal. 13. Total jitter definition: with an ideal clock input of frequency fMAX, no more than one output edge in 1012 output edges will deviate by more than the specified peak-to-peak jitter value.
Condition NRZ Data Clock
Min 10.7 7 70
Typ
Max
Units Gbps GHz
IN-to-Q
125 115
220
ps fs/C
Note 10 Note 11 Note 12 Note 13 (20% to 80%) At full output swing. 20 40
1 10 1 10 60
psRMS psPP psRMS psPP ps
Output Rise/Fall Times
Q, /Q
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Micrel, Inc.
Precision Edge(R) SY58600U
TIMING DIAGRAM
IN /IN tpd Q /Q
DEFINITION OF SINGLE-ENDED AND DIFFERENTIAL SWINGS
VIN, VOUT 400mV (typical)
VDIFF_IN, VDIFF_OUT 800mV (typical)
Figure 1a. Single-Ended Swing
Figure 1b. Differential Swing
INPUT AND OUTPUT STAGE INTERNAL TERMINATION
VCC
VCC
50
50 /Q Q
IN 50 VT 50 /IN GND
GND
Figure 2a. Simplified Differential Input Stage
Figure 2b. Simplified Differential Output Stage
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Micrel, Inc.
Precision Edge(R) SY58600U
TYPICAL OPERATING CHARACTERISTICS
VCC = 3.3V, GND = 0, VIN = 800mV.
200MHz Clock
1xGBE Mask 223-1
Output Swing (100mV/div.)
Output Swing (100mV/div.)
TIME (500ps/div.)
TIME (200ps/div.)
OC-12 Mask 223-1 PRBS
2xGBE Mask 223-1 PRBS
Output Swing (100mV/div.)
TIME (300ps/div.)
Output Swing (100mV/div.)
TIME (100ps/div.)
2xFC Mask 223-1 PRBS
OC-192 Mask 223-1 PRBS
Output Swing (100mV/div.)
TIME (100ps/div.)
Output Swing (100mV/div.)
TIME (20ps/div.)
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Micrel, Inc.
Precision Edge(R) SY58600U
TYPICAL OPERATING CHARACTERISTICS CONT'D
VCC = 3.3V, GND = 0, VIN = 800mV.
10xGBE Mask 223-1 PRBS
Output Swing (100mV/div.)
TIME (15ps/div.)
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Micrel, Inc.
Precision Edge(R) SY58600U
INPUT INTERFACE APPLICATIONS
VCC
VCC
VCC
LVPECL
IN
IN CML /IN SY58600U GND NC NC VT VREF-AC GND VCC 0.1F CML
IN /IN SY58600U
GND
VCC 0.1F
/IN SY58600U VT NC
RP
VREF-AC
Note: For 3.3V, RP = 50. For 2.5V, RP = 19.
VT VREF-AC
Figure 3a. CML Interface (DC-Coupled)
Option: VT may be connected to VCC.
Figure 3b. CML Interface (AC-Coupled)
Figure 3c. LVPECL Interface (DC-Coupled)
VCC VCC
IN
LVPECL
/IN RP GND GND RP VCC 0.1F VT VREF-AC
Note: For 3.3V, RP = 100. For 2.5V, RP = 50.
IN SY58600U LVDS /IN SY58600U GND NC NC VT VREF-AC
Figure 3d. LVPECL Interface (AC-Coupled)
Figure 3e. LVDS Interface
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Micrel, Inc.
Precision Edge(R) SY58600U
OUTPUT INTERFACE APPLICATIONS
VCC VCC
50
50 Z0 = 50 /Q 100 Z0 = 50 Q
50
50 Z0 = 50 /Q 50 VCC Z0 = 50 Q 50
GND
GND
Figure 4a. CML DC-Coupled Termination
Figure 4b. CML DC-Coupled Termination
VCC
50
50 Z0 = 50 /Q 50 VCC -1.2V Z0 = 50 Q 50
GND
Figure 4c. CML AC-Coupled Termination
RELATED PRODUCT AND SUPPORT DOCUMENTATION
Part Number SY58601U SY58602U Function 2.5V/3.3V 5Gbps Differential 800mV LVPECL Line Driver/Receiver with Internal Termination Data Sheet Link www.micrel.com/product-info/products/sy58601u.shtml
2.5V/3.3V 10.7Gbps Differential 400mV LVPECL www.micrel.com/product-info/products/sy58602u.shtml Line Driver/Receiver with Internal Termination MLFTM Application Note www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml New Products and Applications
HBW Solutions
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Micrel, Inc.
Precision Edge(R) SY58600U
8-PIN ULTRA-SMALL EPAD MicroLeadFrame(R) (MLF-8)
Package EP- Exposed Pad
Die
CompSide Island
Heat Dissipation Heat Dissipation VEE Heavy Copper Plane VEE Heavy Copper Plane
PCB Thermal Consideration for 8-Pin MLF(R) Package (Always solder, or equivalent, the exposed pad to the PCB) Package Notes: 1. Package meets Level 2 qualification. 2. All parts 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. (c) 2005 Micrel, Incorporated. M9999-082707 hbwhelp@micrel.com or (408) 955-1690
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