Precison Edge 5V/3.3V 2.5Gbps VARIABLE SY89307V Micrel, Inc. Precision Edge OUTPUT SWING PECL/ECL SY89307V DIFFERENTIAL RECEIVER FEATURES 3.3V and 5V power supply options Precision Edge >2.5Gbps maximum throughput Fast output transitions <160ps t /t r f DESCRIPTION 100k compatible PECL/ECL I/O Functionally equivalent to SY88927V and The SY89307V is a differential receiver with a variable SY100EP16VS output swing. It is functionally equivalent to the SY100EP16VS but in an ultra-small 8-lead MLF package Variable output swing from 100mV to 700mV that features a 70% smaller footprint. Like the EP16VS its Guaranteed operation over 40C to +85C variable output swing makes it ideal for use as a VCSEL temperature range laser driver. Available in ultra-small 8-pin MLF (2mm x 2mm) The operational range of the SY89307V control input is package from V (maximum output swing) to V (minimum output BB CC swing). The output swing can be controlled by a variable resistor between the V pin and V with the wiper driving BB CC V . CTRL APPLICATIONS The SY89307V provides a V output for either single- BB ended use or as a DC bias for AC-coupling to the device. Multimode optical transceiver The V pin should be used only as a bias for this device BB as its current sink/source capability is limited. Whenever VCSEL driver used, the V pin should be bypassed to V via a 0.01F BB CC Backplane receiver capacitor. Under open input conditions the Q output will be LOW. TYPICAL VOLTAGE OUTPUT SWING 100 +105C 90 80 70 60 +45C 50 40 30 20 -40C 10 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 V V CC CTRL Typical Voltage Output Swing V = 3.3V or 5V CC Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc. Rev.: C Amendment: /0 M9999-051006 1 Issue Date: May 2006 hbwhelp micrel.com or (408) 955-1690 VOLTAGE SWING (%) Precison Edge SY89307V Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information Package Operating Package Lead VCTRL 1 8 VCC Part Number Type Range Marking Finish D 2 7 Q Variable SY89307VMITR MLF-8 Industrial P16S Sn-Pb Output (1) /D 3 6 /Q SY89307VMGTR MLF-8 Industrial P16S with Pb-Free Swing Pb-Free bar-line indicator NiPdAu A 40 V VBB 4 5 VEE Note: 1. Pb-Free package is recommended for new designs. TOP VIEW 8-Pin MLF Ultra-Small Outline (2mm x 2mm) PIN DESCRIPTION Pin Number Pin Name Type Pin Function 2, 3 D, /D 100K ECL Input Differential PECL/ECL Inputs: If inputs are left open, Q output will default to LOW. See Input Interface Applications section for single-ended inputs. 7, 6 Q, /Q 100K PECL/ECL Differential Outputs: Variable swing PECL/ECL output pair defaults to LOW Output if D inputs left open. See Application Implementation section for recommendations on terminations. 8 VCC Positive Positive Power Supply: Bypass with 0.1 F//0.01 F low ESR capacitors. Power Supply 5 VEE, Negative Negative Power Supply: V and Exposed pad must be tied to most EE Exposed Pad Power Supply negative supply. For PECL/LVPECL connect to ground. 4 VBB Reference Bias Voltage: V 1.3V. Used as reference voltage when AC-coupling to CC Voltage Output the D, /D inputs. Bypass with 0.01 F capacitor to V . CC 1 VCTRL Control Voltage Voltage Input: Variable voltage input to control output swings. M9999-051006 2 hbwhelp micrel.com or (408) 955-1690