10.7Gbps Differential CML 2:1 Mux

Micrel ULTRA-PRECISION DIFFERENTIAL CML 2:1 MUX with INTERNAL I/O TERMINATION Precision Edge™ SY58017U Precision Edge™ SY58017U FEATURES s Guaranteed AC performance over temperature and voltage: • DC to > 10.7Gbps data throughput • DC to > 7GHz fMAX (clock) • < 240ps propagation delay • < 60ps tr / tf times s Ultra-low crosstalk-induced jitter: < 0.7psrms s Ultra-low jitter design: • < 1psrms random jitter • < 10psp-p deterministic jitter • < 10psp-p total jitter (clock) s Unique input termination and VT pin accepts DCcoupled and AC-coupled inputs (CML, PECL, LVDS) s Internal 50Ω output source termination s Typical 400mV CML output swing (RL = 50Ω) s Power supply 2.5V ±5% or 3.3V ±10% s –40°C to +85°C temperature range s Available in 16-pin (3mm × 3mm) MLF™ package Precision Edge™ DESCRIPTION The SY58017U is a 2.5V/3.3V precision, high-speed, 2:1 differential MUX capable of handling clocks up to 7GHz and data up to 10.7Gbps. The differential input includes Micrel’s unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100mV without any level shifting or termination resistor networks in the signal path. The outputs are 50Ω source terminated CML, with extremely fast rise/fall times guaranteed to be less than 60ps. The SY58017U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. For applications that require LVPECL outputs, consider the SY58018U or SY58019U Multiplexers with LVPECL outputs. The www.DataSheet4U.com SY58017U is part of Micrel’s high-speed, Precision Edge™ APPLICATIONS product line. s Redundant clock distribution All support documentation can be found on Micrel’s web site at www.micrel.com. s OC-3 to OC-192 SONET/SDH clock/data distribution s Loopback s Fibre Channel distribution FUNCTIONAL BLOCK DIAGRAM IN0 50Ω VT0 50Ω /IN0 MUX IN1 50Ω VT1 50Ω /IN1 1 S TYPICAL PERFORMANCE 10.7Gbps Output 0 /Q0 SEL (TTL/CMOS) Output Swing (100mV/div.) Q0 TIME (25ps/div.) (223—1 PRBS) Precision Edge is a trademark of Micrel, Inc. AnyGate is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-012704 Rev.: A Amendment: /0 1 Issue Date: Jan. 2004 Micrel Precision Edge™ SY58017U PACKAGE/ORDERING INFORMATION VT0 GND GND VCC Ordering Information(1) Part Number Package Type MLF-16 MLF-16 Operating Range Industrial Industrial Package Marking 017U 017U 16 15 14 13 IN0 /IN0 IN1 /IN1 1 2 3 4 5678 12 11 10 9 Q GND GND /Q SY58017UMI SY58017UMITR(2) Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC electricals only. 2. Tape and Reel. 16-Pin MLF™ PIN DESCRIPTION Pin Number 1, 2 3, 4 Pin Name IN0, /IN0 IN1, /IN1 Pin Function Differential Input: These input pairs are the differential signal inputs to the device. They accept differential AC- or DC-coupled 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. Please refer to the “Input Interface Applications” section for more details. Input Termination Center-Tap: Each side of the differential input pair terminates to a VT pin. The VT0 and VT1 pins provide a center-tap to a termination network for maximum interface flexibility. See “Input Interface Applications” section for more details. This single-ended TTL/CMOS compatible input selects the inputs to the multiplexer. Note that this input is internally connected to a 25kΩ pull-up resistor and will default to a logic HIGH state if left open. No connect. Positive Power Supply: Bypass with 0.1µF0.01µF low ESR capacitors. 0.01µF capacitor should be as close to VCC pin as possible. Differential Outputs: This CML output pair is the output of the device. Normally terminate with 100Ω across Q and /Q. See “Output Interface Applications” section. It is a logic function of the IN0, IN1, and SEL inputs. Please refer to the “Truth Table” for details. Ground. Ground pins and exposed pad must be connected to the same ground plane. 16, 5 VT0, VT1 6 7 8, 13 12, 9 10, 11, 14, 15 GND, Exposed Pad TRUTH TABLE TRUTH TABLE SEL 0 1 Output IN0 Input Selected IN1 Input Selected M9999-012704 VT1 SEL NC VCC SEL NC VCC Q, /Q 2 Micrel Precision Edge™ SY58017U Absolute Maximum Ratings(1) Power 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 pin ........................ ±100mA Input Current Source or sink current on IN, /IN pin .................... ±50mA Lead Temperature (soldering, 10 sec.) ..................... 265°C Storage Temperature Range (TS ) ........... –65°C to +150°C Operating Ratings(2) Power Supply Voltage (VCC) ............... +2.375V to +2.625V ............................................................ +3.0V to +3.6V Ambient Temperature Range (TA) ............. –40°C to +85°C Package Thermal Resistance(4) MLF™ (θJA) Still-Air ............................................................. 60°C/W MLF™ (ψJB) Junction-to-Board ............................................ 38°C/W DC ELECTRICAL CHARACTERISTICS(5) TA = –40°C to 85°C, unless otherwise stated. Symbol VCC ICC RDIFF_IN RIN Parameter Power Supply Voltage Power Supply Current Differential Input Resistance (IN0-to-/IN0, IN1-to-/IN1) Input Resistance (IN0-to-VT0, /IN0-to-VT0, IN1-to-VT1, /IN1-to-VT1) Input HIGH Voltage (IN0, /IN0, IN1, /IN1) Input LOW Voltage (IN0, /IN0, IN1, /IN1) Input Voltage Swing (IN0, /IN0, IN1, /IN1) Differential Input Voltage Swing |IN0, /IN0|, |IN1, /IN1| IN to VT (IN0, /IN0, IN1, /IN1) See Figure 1a See Figure 1b Note 7 Condition VCC = 2.5V VCC = 3.3V No load, max. VCC(6) 80 40 Min 2.375 3.0 Typ 2.5 3.3 55 100 50 Max 2.625 3.6 70 120 60 Units V V mA Ω Ω VIH VIL VIN VDIFF_IN VT IN Notes: VCC–1.6 0 100 200 VCC VIH–0.1 1700 V V mV mV 1.28 V 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. 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 (GND) on the PCB. ψJB uses 4-layer θJA in still-air measurment, 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 50Ω pull-ups. 7. VIH (min), not lower than 1.2V. M9999-012704 3 Micrel Precision Edge™ SY58017U CML OUTPUT DC ELECTRICAL CHARACTERISTICS(8) VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to 85°C; RL = 100Ω across each output pair, or equivalent, unless otherwise stated. Symbol VOH VOUT VDIFF_OUT ROUT Parameter Output HIGH Voltage Output Voltage Swing Differential Output Voltage Swing Output Source Impedance See Figure 1a See Figure 1b Condition Min VCC–0.020 325 650 40 400 800 50 60 Typ Max VCC Units V mV mV Ω LVTTL/CMOS DC ELECTRICAL CHARACTERISTICS(8) VCC = 2.5V ±5% or 3.3V ±10%; TA= -40°C to 85°C, unless otherwise stated. Symbol VIH VIL IIH IIL Note: 8. 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 2.0 Typ Max Units V 0.8 40 –300 V µA µA M9999-012704 4 Micrel Precision Edge™ SY58017U AC ELECTRICAL CHARACTERISTICS(9) VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to 85°C, RL= 100Ω across each output pair, or equivalent, unless otherwise stated. Symbol fMAX tpd tpd Tempco tSKEW tJITTER Data Clock Parameter Maximum Operating Frequency VOUT ≥ 200mV Differential Propagation Delay Condition NRZ Data Clock IN-to-Q SEL-to-Q Differential Propagation Delay Temperature Coefficient Input-to-Input Skew Part-to-Part Skew Random Jitter Deterministic Jitter Cycle-to-Cycle Jitter Total Jitter Crosstalk-Induced Jitter Note 16 tr, tf Notes: 9. High-frequency AC parameters are guaranteed by design and characterization. 10. Input-to-input skew is the difference in time from and input-to-output in comparison to any other input-to-output. In addition, the input-input skew does not include the output skew. 11. 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. 12. RJ is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps/3.2Gbps. 13. DJ is measured at 2.5Gbps/3.2Gbps, with both K28.5 and 223–1 PRBS pattern. 14. 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. 15. 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. 16. Crosstalk is measured at the output while applying two similar frequencies that are asynchronous with respect to each other at the inputs. Min 10.7 Typ Max Units Gbps 7 90 50 160 180 75 240 350 GHz ps ps fs/°C 15 100 1 10 1 10 0.7 ps ps psrms psp-p psrms psp-p psrms ps Note 10 Note 11 Note 12 Note 13 Note 14 Note 15 4