ti HMC914LP4E v03.1012 12.5 Gbps LIMITING AMPLIFIER w/ LOSS OF SIGNAL FEATURE Typical Applications Features Supports Data Rates up to 12.5 Gbps The HMC914LP4E is ideal for: Differential Small Signal Gain: 32 dB SONET/SDH-Based Transmission Systems Programmable Loss-of-Signal Detection (LOS) OC -192 Fiber Optic Modules Automatic Output Disable Mode 10 Gigabit Ethernet Adjustable Output Voltage Swing 8x a nd 10x Fiber Channel up to 750 mVp-p Differential Wi deband RF Gain Block Integrated DC Offset Correction Received Signal Strength Indicator (RSSI) Output 24 Lead Plastic 4x4mm SMT Package: 16mm General Description Functional Diagram HMC914LP4E is a limiting amplifier designed to support data transmission rates up to 12.5 Gbps. The amplifier can operate over a wide range of input voltage levels and provides constant-level differential output swing. HMC914LP4E features a loss of signal (LOS) indicator output where the input signal amplitude threshold level can be adjusted using the LOSTH pin. HMC914LP4E also features an output level control pin, VAC, which allows for loss compensation or for output signal level optimization. Differential output signal swing can be adjusted up to 750 mVp-p. An integrated DC offset compensation is also provided on chip. The HMC914LP4E provides an analog RSSI output voltage which is proportional to input signal amplitude. All single-ended input signals are terminated with 50 ohms to +3.3V on-chip, and may be either AC or DC coupled. The outputs of the HMC914LP4E may be operated either differentially or single-ended. The m t HMC914LP4E operates from a single +3.3V DC supply lpm ifi sre il im ng and is available in a plastic RoHS compliant 4x4 mm SMT package. Electrical Specifications, T = +25 C, Vcc = +3.3V A Parameter Conditions Min. Typ. Max. Units Power Supply Voltage, Vcc 3 3.3 3.6 V Supply Current, Icc VAC = 1V 47 mA Output Amplitude Control Voltage, VAC 0.4 2.2 V Differential Small Signal Gain VAC = 1V 32 dB Maximum Data Rate 12.5 Gbps Small Signal Bandwidth, f 3-dB cutoff frequency 9.5 GHz 3dB-H Low Frequency Cut-off, f 100 nF off chip cap is used 10 kHz 3dB-L 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 fo hittite.com a - sti HMC914LP4E v03.1012 12.5 Gbps LIMITING AMPLIFIER w/ LOSS OF SIGNAL FEATURE Electrical Specifications (Continued) Parameter Conditions Min. Typ. Max. Units Input return loss, S11 Up to 12 GHz 12 dB Output return loss, S22 Up to 12 GHz 11 dB 1 Input Sensitivity VAC = 1V 15 mVp-p Maximum Input Swing VAC = 1V 1200 mVp-p diff Adjustable Data Output Swing Range VAC = 0.4V - 2.2V 240 750 mVp-p diff 2 Output P1dB 5 GHz, VAC = 1V -9.5 dBm 3 Rise time, tr VAC = 1V, %20 to %80 29 ps 3 Fall time, tf VAC = 1V, %80 to %20 29 ps 4 Additive RMS jitter, Jd VAC = 1V 0.3 ps 5 GHz 3.8 nV/rtHz Input referred voltage noise 8 GHz 3.6 nV/rtHz DISABLE Input HIGH Voltage, VIH 2 Vcc V DISABLE Input LOW Voltage, VIL 0 0.8 V AODWNENB Input HIGH Voltage, VIH 2 Vcc V AODWNENB Input LOW Voltage, VIL 0 0.8 V R = 80 kOhm between LOSTH and TH 20 mV GND, Single-Ended 5 LOS assert threshold level R = 8.5 kOhm between LOSTH and TH 380 mV VCC, Single-Ended assert, LOSTH internally 63 mV set, single-ended 5 LOS Assert/Deassert Threshold Level deassert, LOSTH internally 110 mV set, single-ended R between LOSTH and VCC 2 4.8 dB TH 5 6 LOS Hysteresis R between LOSTH and GND 5.8 12.2 dB TH LOSTH internally set 4.84 dB LOS Output HIGH Voltage 1.82 kOhm to VCC (R ) 3.3 V LOS LOS Output LOW Voltage 1.82 kOhm to VCC (R ) 2.65 V LOS RSSI Sensitivity 2.7 mV/V 1 Signal-ended input signal level for limited output 2 Single-ended output 23 3 Data Amplitude: Differential 200 mVp-p, Data Rate: 10 Gbps PRBS 2 -1 pattern m t 4 Data Amplitude: Differential 200 mVp-p, Data Rate: 10 Gbps 10101... pattern 5 See application notes for detailed information lpm ifi ser il im gn 6 LOS Hysteresis=20*Log(LOS deassert/LOS assert) 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. 2 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 fo hittite.com a - s