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SY54016AR
Low Voltage 1.2V/1.8V CML Differential Line Driver/Receiver 3.2Gbps, 3.2GHz
General Description
The SY54016AR is a fully-differential, low-voltage 1.2V/1.8V CML Line Driver/Receiver. The SY54016AR can process clock signals as fast as 3.2GHz or data patterns up to 3.2Gbps. The differential input includes Micrel's unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals, as small as 100mV (200mVpp) without any level-shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an internal voltage reference is provided to bias the VT pin. The outputs are CML, with extremely fast rise/fall times guaranteed to be less than 95ps. The SY54016AR operates from a 2.5V 5% core supply and a 1.8V or 1.2V 5% output supply and is guaranteed over the full industrial temperature range (-40C to +85C). The SY54016AR is part of Micrel's high-speed, Precision Edge(R) product line. Datasheets and support documentation can be found on Micrel's web site at: www.micrel.com.
Precision Edge(R)
Features
* 1.2V/1.8V CML Differential Line Driver/Receiver * Guaranteed AC performance over temperature and voltage: - DC-to- > 3.2Gbps throughput - <280ps propagation delay (IN-to-Q) - <95ps rise/fall times * Ultra-low jitter design - <1psRMS random jitter * High-speed CML outputs * 2.5V 5% , 1.8/1.2V 5% power supply operation * Industrial temperature range: -40C to +85C * Available in 8-pin (2mm x 2mm) MLF(R) package
Applications
* * * * Data Distribution: OC-48, OC-48+FEC SONET clock and data distribution Fibre Channel clock and data distribution Gigabit Ethernet clock and data distribution
Functional Block Diagram
Markets
* * * * * * Storage ATE 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. Micrel Inc. * 2180 Fortune Drive * San Jose, CA 95131 * USA * tel +1 (408) 944-0800 * fax + 1 (408) 474-1000 * http://www.micrel.com
January 2011
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Micrel, Inc.
SY54016AR
Ordering Information(1)
Part Number SY54016ARMGTR(2)
Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25C, DC Electricals only. 2. Tape and Reel.
Package Type MLF-8
Operating Range Industrial
Package Marking 16A with Pb-Free bar-line indicator
Lead Finish NiPdAu Pb-Free
Pin Configuration
8-Pin MLF(R) (MLF-16)
Pin Description
Pin Number 2,3 Pin Name IN, /IN Pin Function Differential Input: This input pair is the differential signal input to the device. Input accepts differential signals as small as 100mV (200mVPP). Each input pin internally terminates with 50 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 a 0.1F low ESR capacitor to VCC. See "Interface Applications" subsection and Figure 2a. Positive Power Supply: Bypass with 0.1uF//0.01uF low ESR capacitors as close to the VCC pin as possible. Supplies input and core circuitry. Output Supply: Bypass with 0.1uF//0.01uF low ESR capacitors as close to the VCCO pin 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" subsection for termination information.
1
VT
8 5 4 7,6
VCC VCCO GND, Exposed pad Q, /Q
January 2011
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SY54016AR
Absolute Maximum Ratings(1)
Supply Voltage (VCC) ............................... -0.5V to +3.0V Supply Voltage (VCCO) ............................. -0.5V to +2.7V VCC - VCCO ...............................................................<1.8V VCCO - VCC ...............................................................<0.5V Input Voltage (VIN) .......................................-0.5V to VCC CML Output Voltage (VOUT) ............... 0.6V to VCCO+0.5V Current (VT) Source or sink current on VT pin .................100mA Input Current Source or sink current on (IN, /IN).................50mA Maximum operating Junction Temperature .......... 125C Lead Temperature (soldering, 20sec.) .................. 260C Storage Temperature (Ts) ....................-65C to +150C
Operating Ratings(2)
Supply Voltage (VCC)..........................2.375V to 2.625V (VCCO)........................ 1.14V to 1.9V Ambient Temperature (TA) ................... -40C to +85C Package Thermal Resistance(3) MLF(R) Still-air (JA) ........................................... 93 C/W Junction-to-board (JB) ......................... 56 C/W
DC Electrical Characteristics(4)
TA = -40C to +85C, unless otherwise stated.
Symbol VCC ICC ICCO RIN RDIFF_IN VIH VIL VIH VIL VIN VDIFF_IN VT_IN
Notes: 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied at 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. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most negative potential on the PCB. JB and 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.
Parameter Power Supply Voltage Range Power Supply Current Power Supply Current Input Resistance (IN-to-VT, /IN-to-VT ) Differential Input Resistance (IN-to-/IN) Input HIGH Voltage (IN, /IN) Input LOW Voltage (IN, /IN) Input HIGH Voltage (IN, /IN) Input LOW Voltage (IN, /IN) Input Voltage Swing (IN, /IN) Differential Input Voltage Swing (|IN - /IN|) Voltage from Input to VT
Condition VCC VCCO VCCO Max. VCC No Load. Max. VCCO
Min. 2.375 1.14 1.7
Typ. 2.5 1.2 1.8 11 16
Max. 2.625 1.26 1.9 16 21 55 110 VCC VIH-0.1 VCC VIH-0.1 1.0 2.0 1.28
Units V V V mA mA V V V V V V V
45 90 IN, /IN VIL with VIH = 1.2V IN, /IN VIL with VIH = 1.14V, (1.2V-5%) see Figure 3a see Figure 3b 1.2 0.2 1.14 0.66 0.1 0.2
50 100
January 2011
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Micrel, Inc.
SY54016AR
CML Outputs DC Electrical Characteristics(5)
VCCO = 1.14V to 1.26V RL = 50 to VCCO, VCCO = 1.7V to 1.9V, RL = 50 to VCCO or 100 across the outputs, VCC = 2.375V to 2.625V. TA = -40C to +85C, unless otherwise stated.
Symbol VOH VOUT VDIFF_OUT ROUT
Note: 5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
Parameter Output HIGH Voltage Output Voltage Swing Differential Output Voltage Swing Output Source Impedance
Condition RL = 50 to VCCO See Figure 3a See Figure 3b
Min. VCCO-0.020 300 600 45
Typ. VCCO-0.010 390 780 50
Max. VCCO 475 950 55
Units V mV mV
AC Electrical Characteristics
VCCO = 1.14V to 1.26V RL = 50 to VCCO, VCCO = 1.7V to 1.9V, RL = 50 to VCCO or 100 across the outputs, VCC = 2.375V to 2.625V. TA = -40C to +85C, unless otherwise stated.
Symbol fMAX tPD tSkew tJitter tR tF Parameter Maximum Frequency Propagation Delay Part-to-Part Skew Random Jitter Output Rise/Fall Times (20% to 80%) Duty Cycle
Note: 6. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and no skew at the edges at the respective inputs.
Condition NRZ Data VOUT > 200mV IN-to-Q Figure 1a Note 6 Clock
Min. 3.2
3.2
Typ.
Max.
Units Gbps GHz
130
190
280 75 1
ps ps psRMS ps %
At full output swing. Differential I/O
30 47
60
95 53
January 2011
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SY54016AR CML Output Termination with VCCO 1.8V For VCCO of 1.8V, Figure 5a and Figure b, terminate with either 50-to-1.8V or 100 differentially across the outputs. AC- or DC-coupling is fine. Input AC Coupling The SY54016AR input can accept AC coupling from any driver. Bypass VT with a 0.1F low ESR capacitor to VCC as shown in Figures 4c and 4d. VT has an internal high impedance resistor divider as shown in Figure 2a, to provide a bias voltage for AC-coupling.
Interface Applications
For Input Interface Applications see Figures 4a-f and for CML Output Termination see Figures 5a-d. CML Output Termination with VCCO 1.2V For VCCO of 1.2V, Figure 5a, terminate the output with 50-to-1.2V, DC-coupled, not 100 differentially across the outputs. If AC-coupling is used, Figure 5d, terminate into 50to-1.2V before the coupling capacitor and then connect to a high value resistor to a reference voltage. Do not AC-couple with internally terminated receiver. For example, 50 ANY-IN input. AC-coupling will offset the output voltage by 200mV and this offset voltage will be too low for proper driver operation.
Timing Diagrams
Figure 1a. Propagation Delay
January 2011
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SY54016AR
Typical Characteristics
VCC = 2.5V, VCCO = 1.2V, GND = 0V, RL = 50 to 1.2V, VIN = 100mV, TA = 25C, unless otherwise stated.
January 2011
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SY54016AR
Functional Characteristics
VCC = 2.5V, GND = 0V, VIN = 400mV, RL = 50 to VCCO, Data Pattern: 223-1, TA = 25C, unless otherwise stated.
Output Eyes with VCCO = 1.2V
Output Eyes with VCCO = 1.8V
January 2011
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Micrel, Inc.
SY54016AR
Functional Characteristics
VCC = 2.5V, GND = 0V, VIN = 400mV, RL = 50 to VCCO, TA = 25C, unless otherwise stated.
January 2011
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SY54016AR
Input and Output Stage
Figure 2b. Simplified CML Output Buffer Figure 2a. Simplified Differential Input Buffer
Single-Ended and Differential Swings
Figure 3a. Single-Ended Swing
Figure 3b. Differential Swing
January 2011
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Micrel, Inc.
SY54016AR
Input Interface Applications
Figure 4a. CML Interface (DC-Coupled, 1.8V, 2.5V)
Figure 4b. CML Interface (DC-Coupled, 1.2V)
Figure 4c. CML Interface (AC-Coupled)
Figure 4d. LVPECL Interface (AC-Coupled)
Figure 4e. LVPECL Interface (DC-Coupled)
Figure 4f. LVDS Interface
January 2011
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Micrel, Inc.
SY54016AR
CML Output Termination
Figure 5a. 1.2V or 1.8V CML DC-Coupled Termination
Figure 5b. 1.8V DC-Coupled Termination
Figure 5c. CML AC-Coupled Termination (VCCO 1.8V Only)
Figure 5d. CML AC-Coupled Termination (VCCO 1.2V Only)
Related Product and Support Documents
Part Number SY54016R HBW Solutions Function 3.2Gbps Precision, 1:1 Low Voltage CML Buffer with Internal Termination and Fail Safe Input New Products and Termination Application Notes Datasheet Link http://www.micrel.com/page.do?page=/productinfo/products/sy54016r.shtml http://www.micrel.com/page.do?page=/productinfo/as/HBWsolutions.shtml
January 2011
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Micrel, Inc.
SY54016AR
Package Information
8-Pin MLF(R) (2mm x 2mm) (MLF-8)
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
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel's terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. 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 a Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2008 Micrel, Incorporated.
January 2011
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