HMC850LC3 v03.0614 28 Gbps, 1:2 FANOUT bUFFER WITH pROGRAMMAbLE OUTpUT VOLTAGE Typical Applications Features The HMc 850Lc 3 is ideal for: inputs Terminated internally to 50 o hms RF ATe Applications d ifferential inputs are d c c oupled Broadband Test & Measurement propagation d elay: 75 ps Serial d ata Transmission up to 28 g bps Fast Rise and Fall Times: 16 / 15 ps c lock Buffering up to 20 g Hz programmable d ifferential o utput Voltage Swing: 600 - 1100 mV power d issipation: 315 mW 2 16 Lead c eramic 3x3 mm SMT package: 9 mm Functional Diagram General Description The HMc 850Lc 3 is a 1:2 Fanout Buffer designed to support data transmission rates up to 28 g bps, and clock frequencies as high as 20 gHz. All differential inputs and outputs are dc coupled and terminated on chip with 50 o hm resistors to the positive supply, ground. The outputs may be used in either single- ended or differential modes, and should be Ac or dc coupled into 50 o hm resistors connected to ground. The HMc 850Lc 3 also features an output level control pin, VR which allows for loss compensation or for signal level optimization. The HMc 850Lc 3 operates from a single -3.3V dc supply and is available in a ceramic RoHS compliant 3x3 mm SMT package. Electrical specifications, T = +25 C, Vee = -3.3 V, VR = 0 V A parameter c onditions Min. Typ. Max Units power Supply Voltage -3.6 -3.3 -3.0 V power Supply c urrent 95 mA Maximum d ata Rate 28 g bps Maximum c lock Rate 20 g Hz input Voltage Range -1.5 0.5 V input Voltage d ifferential 100 2000 mV input Return Loss Frequency <20 g Hz 10 dB Single-ended, peak-to-peak 550 mVp-p o utput Amplitude d ifferential, peak-to-peak 1100 mVp-p o utput High Voltage -10 mV o utput Low Voltage -550 mV o utput Rise / Fall Time Single-ended, 20% - 80% 16 / 15 ps Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 1 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com Hig H Speed Logic - SMTHMC850LC3 v03.0614 28 Gbps, 1:2 FANOUT bUFFER WITH pROGRAMMAbLE OUTpUT VOLTAGE Electrical specifications (continued) parameter c onditions Min. Typ. Max Units o utput Return Loss Frequency <20 g Hz 10 dB Small Signal g ain 28 dB Random Jitter J rms 0.2 ps rms R 3 15 1 d eterministic Jitter, J - , 2 -1 pRBS input 2 6 ps d propagation d elay, td 75 ps d 1 to d 2 d ata Skew, t 1 3 ps SKeW 15 1 d eterministic jitter measured at 13 g bps with a 300 mVpp, 2 -1 pRBS input sequence. Output Differential 1 2 1 2 DC Current vs. supply Voltage vs. supply Voltage 130 1500 1400 120 +25C 1300 +85C -40C 1200 Vr = +0.4 110 Vr = -0.4 1100 100 1000 900 90 800 +25C +85C 700 -40C 80 Vr = +0.4 Vr = -0.4 600 70 500 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 2 4 1 3 4 Output Differential vs. VR Amplitude vs. Input power 1500 40 1400 35 1300 30 0 dBm +25C -10 dBm +85C 1200 -40C 25 -20 dBm -30 dBm 1100 20 1000 15 900 10 800 5 700 0 -5 600 500 -10 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0 5 10 15 20 25 VR (V) FREQUENCY (GHz) 1 VR = 0.0 V 2 Frequency = 13 g bps 3 d evice measured on evaluation board with port extensions 4 Vee = -3.3 V Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price, delivery, and to place orders: Analog Devices, Inc., For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Phone: 781-329-4700 Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. 3 - 22 Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 1-800-ANALOG-D Application Support: Phone: 978-250-3343 or apps hittite.com DIFFERENTIAL VOLTAGE (mV) DC CURRENT (mA) AMPLITUDE (dB) DIFFERENTIAL VOLTAGE (mV) Hig H SpHeiegdH S Lopgeeid Lc - SogMic - ST MT