Micrel - SY56011R Low Voltage Fanout Buffer

Introducing the SY56011R Low Voltage Fanout Buffer

The SY56011R is a fully differential, low voltage 1.2V/1.8V/2.5V CML 1:2 Fanout Buffer with input equalization. The SY56011R can process clock signals as fast as 4.5 GHz 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 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 SY56011R 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 SY56011R is part of Micrel’s high-speed, Precision Edge® product line.

1.2V/1.8V/2.5V CML 1:2 Fanout Buffer

Equalizes 9, 18, 27 inches of FR4

Guaranteed AC performance over temperature and voltage:

DC-to > 6.4Gbps Data throughput
DC-to > 4.5GHz Clock throughput
< 280 ps propagation delay ( IN-to-Q)
< 15ps within-device skew
< 80ps rise/fall times

Ultra-low jitter design

< 1ps RMS random jitter

High-speed CML outputs

2.5V ±5% V CC , 1.2/1.8V/2.5V ±5% V CCO power supply operation

Industrial temperature range: –40°C to +85°C

Available in 16-pin (3mm x 3mm) MLF® package

Click to view pin configuration

Datasheet RoHS Compliant

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Digi-Key P/N	Micrel P/N	Package Type	Operating Range	Package Marking	Lead Finish
576-3288-5-ND	SY56011R	MLF-16	Industrial	R011 with Pb-Free bar-line indicator	NiPdAu Pb-Free

Absolute Maximum Ratings⁽¹⁾	Operating Ratings⁽²⁾
Supply Voltage (V_CC) ........................... –0.5V to +3.0V	Supply Voltage (V_CC) ............ 2.375V to 2.625V
Enable Voltage (V_EN) ............................ –0.5V to +3.0V	(V_CCO) ............ 1.14V to 2.625V
V_CC – V_CCO ....................................................... < 1.8V	Ambient Temp. (T_A) .................. 1.14V to 2.625V
Input Voltage (V_IN) .................................. –0.5V to V_CC	Package Thermal Resistance⁽³⁾
CML Output Voltage (V_OUT) ...................... 0.6V to 3.0V	MLF®
Current (V_T)	Still-air (Θ_JA) ................................. 75°C/W
Source or sink on VT pin ................................. ±100mA	Junction-to-board (Ψ_JB) ............... 33°C/W
Input Current
Source or sink Current on (IN, /IN) ..................... ±50mA
Maximum operating Junction Temp. ..................... 125°C
Lead Temp. (soldering, 20 sec.) ......................... 260°C
Storage Temp. (T_S) ............................. –65°C to +150°C

Notes: Permanent device damage may occur if absolute maximum ratings are exceeded. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability. Limits are not guaranteed if the device is operated beyond the operating ratings. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most negative potential on the PCB. Ψ_JB and Θ_JA values are determined for a 4-layer board in still-air number, unless otherwise stated.