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| IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Description The IT3018E is a RoHS-6-compliant limiting amplifier for use as a post amplifier in OC192 and STM-64 optical receivers. Differential signals as small as +/-6 mVpp can be amplified to 2.2 Vpp differential. The device includes offset correction and output voltage control. Both AC and DC coupling are allowed at both input and output. The high sensitivity of the IT3018E allows the device to be used at the output of a transimpedance amplifier. 3 dB bandwidth: 10 GHz Differential gain: 50 dB Saturated output: 1.1 Vpp, each output into 50 ohms Input sensitivity 3.0 mVpp at BER<1E-12 Single bias supply: -5.2 V Power consumption: 624 mW Bias current: 120 mA DC offset correction Amplitude voltage control Low RMS jitter RoHS-6-compliant 4x4 mm QFN (MO-220) package Features www..com Absolute Maximum Ratings S ymbol Vee1,2 Vd Vm Tch Tstg Parameters/conditions Pow er supply voltage Applied voltage at data input (differential) Applied voltage at data input (single ended) Maximum channel temperature Storage temperature Min. -8 Max. 0 3 1.5 5 150 Units V V V mA o Ioffset(+),(-) Offset control current -65 C 150 C Recommended Operating Conditions Sym bol Tc Vee1 Vee2 Iee1+Iee2 Voffset (+) Voffset (-) Vctrl Vd Vm Vindc R Param eters/conditions Operating temperature range (Tcase) Pow er supply voltage Pow er supply voltage Total bias supply current Offset control voltage Offset control voltage Amplitude voltage control Applied peak to peak voltage at data input (differential) Applied peak to peak voltage at data input (single ended) Input/output interface DC input voltage (w ith DC-coupled input) Bit rate Min. 0 -5.45 -5.45 102 -5 -5 -5.2 6 12 Typ. -5.2 -5.2 120 Max. 85 -4.95 -4.95 132 5 5 0 1000 1000 Units o C V V mA V V V mV mV V Gb/s AC and DC coupled -0.5 0.5 12.5 For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 1 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Symbol Parame te rs/conditions Pow er consumption Differential small signal gain 3 dB bandw idth Input return loss (up to 10 GHz) Output return loss (up to 10 GHz) Input sensitivity -- differential input (BER<1E-12, 223-1PRBS, 12.5 Gb/s) Output peak to peak voltage (either Q or /Q) Output DC coupled (Vctrl=0 V for max. voltage) Output AC coupled (Vctrl=0 V for max. voltage) Vout Voutdc Trse Tfse Jpp Jrms* Vout sensitivity vs bias (Vee=-5.2 V +/-5%) DC output voltage (DC coupled to 50 ohm load) Rise time (20% - 80%) Fall time (20% - 80%) Jitter peak to peak Jitter RMS degradation Jrms*=(Jmeas^2-Jthru^2)^.5 -750 -650 24 22 12 1.2 1010 740 1100 800 +/-11 -550 30 26 17 1.8 mVpp mVpp % mV ps ps ps ps Min. 530 49 9 10 10 +/-3 Typ. 624 50 10 20 15 Max. 686 Units mW dB GHz dB dB mVpp Electrical Characteristics At ambient temperature P G B3dB RLin RLout Vin Vout Vee1,2 = -5.2 V www..com S-Parameter Data Measured on connectorized evaluation board Vee1 = Vee2 = -5.2 V Iee1+Iee2 = 120 mA 52 48 44 40 36 32 28 24 20 16 12 8 4 0 0 2 IT3018E Single Ended Gain 0 -5 -10 -15 IT3018E Input Return Loss S21 (dB) S11 (dB) -20 -25 -30 -35 -40 -45 -50 0 2 4 6 8 10 12 14 16 18 4 6 Freq. (GHz) 8 10 12 14 16 18 Freq. (GHz) IT3018E Isolation 0 -10 -20 -30 IT3018E Output Return Loss 0 -5 -10 -15 S22 (dB) S12 (dB) -20 -25 -30 -35 -40 -45 -50 0 2 4 6 8 10 12 14 16 18 -40 -50 -60 -70 -80 -90 -100 0 2 4 6 8 10 12 14 16 18 Freq. (GHz) Freq. (GHz) For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 2 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Eye Diagram Performance Vee1 = Vee2 = -5.2 V Iee1+Iee2 = 120 mA www..com Bit rate: 10.7 Gb/s Vin=+/-5 mVpp, Vout=+/-1 Vpp Bit rate: 12.5 Gb/s Vin=+/-5 mVpp, Vout=+/-1Vpp Bit rate: 10.7 Gb/s Vin=+/-8 mVpp, Vout=+/-1.1 mVpp Bit rate: 12.5 Gb/s Vin=+/-8 mVpp, Vout=+/-1.1 mVpp Bit rate: 10.7 Gb/s Vin=+/-30 mVpp, Vout=+/-1.1 Vpp Bit rate: 12.5 Gb/s Vin=+/-30 mVpp, Vout=+/-1.1 Vpp For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 3 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Eye Diagram Performance vs. Input Voltage (cont.) www..com Bit rate: 10.7 Gb/s Vin=+/-200 mVpp, Vout=+/-1.1 Vpp Bit rate: 12.5 Gb/s Vin=+/-200 mVpp, Vout=+/-1.1 Vpp Bit rate: 10.7 Gb/s Vin=+/-1 Vpp, Vout=+/-1.1 Vpp Bit rate: 12.5 Gb/s Vin=+/-1 Vpp, Vout=+/-1.1 Vpp Input Sensitivity Vee1 = Vee2 = -5.2 V Iee1+Iee2 = 120 mA Input Sensitivity= 3mVpp Differential input up to 12.5 Gb/s BER<1E-12. Output voltage = 930 mVpp single-ended For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 4 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Input/Output Characteristic Input/Output Characteristic 1150 1100 1050 1000 950 900 850 800 750 700 1 10 100 1000 Input (+/- mV) Output Voltage (+/- mV) www..com 0 2 4 6 8 10 12 14 16 18 20 Input (+/- mV) Output Voltage (+/- mV) Performance As Function Of Input Voltage 1150 1100 1050 1000 950 900 850 800 750 700 Peak to Peak Jitter vs Input Input/Output DC Characteristic 0 -200 -400 -600 -800 -1000 -1200 -1400 -280 -240 -200 -160 -120 -80 -40 0 40 80 120 160 200 240 280 40 35 Jitter (pp-psec) 30 25 20 15 10 5 0 1 10 100 1000 Input Amplitude (mV pp) 10.7 Gb/s 12.5 Gb/s D C O u tp u t ( m V ) DC Input Offset (*)(mV) Rise Tim e Vs. Input Voltage @ 12.5 Gb/s 35 30 Rise Time (psec) Fall Time (psec) 35 30 25 20 15 10 5 Fall Tim e vs Input Voltage @ 12.5 Gb/s 25 20 15 10 5 0 1 10 100 1000 0 1 10 100 1000 Input Amplitude (+/- mV pp) Input Amplitude (+/-mV pp) (*) Input applied to the offset control pin (Voffset1), open output. For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 5 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Output Voltage Control Eye Am plitude vs Vctrl 1200 1000 Pow er Supply Current 130 120 Current (mA) 110 100 90 80 70 60 -6 -5 -4 -3 -2 -1 0 Eye Amplitude (mV) 800 600 400 200 0 www..com -200 -6 -4 -2 0 Control Voltage Vctrl (Volts) Control Voltage (V) Bit rate: 12.5 Gb/s, Vtrl=-1.7 V Vin = +/-200 mVpp, Vout = +/-602 mVpp Bit rate: 12.5 Gb/s, Vtrl=-2.8 V Vin = +/-200 mVpp, Vou t= +/-260 mVpp For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 6 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier Recommended Operational Setup Apply -5.2 V at Vee1 and Vee2 Apply 0 V at Vctrl for maximum output DC blocking www..com capacitors optional Vctrl 1 F 560 pF 560 pF 1 F Voffset (+) 0.1 F Din VL1 VL2 /Q RF Input /Din IT3018E Q RF Output Voffset (-) 0.1 F Vee1 Vcb Vee2 Vee = -5.2 V 560 pF 1F Vee = -5.2 V 1F 560 pF 1 F For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 7 IT3018E 12.5-Gb/s High-Gain RX Limiter Amplifier "E" Package Drawings, Pinouts, Marking Notes: Dimensions in inches (mm) www..com Tolerances are 0.0039 in. (0.100 mm) Package drawing encompasses JEDEC MO-220 Version VGGC-2. See iTerra Application Note 10 for recommended pad layout. RoHS parts are backward compatible if application note pad layout is followed. Lead frame material is copper alloy. Mold compound is UL94V0 compliant. Lead finish is NiPdAu. Marking Information iTerra MMMMEA XXNNNN LLYYWW Where, MMMM = part no. E = Package Type A =Temp. Range XX = Wafer Lot NNNN = Ser. No. LLYYWW =MFG D/C P1: GND P2: Din (RF input) P3: /Din (/RF input) P4: GND P5: Voffset (-) P6: Vee1 P7: Vcb P8: Vee2 Pinouts P9: GND P10: Q (RF Out) P11: /Q (/RF Out) P12: GND P13: VL1 P14: Vctrl (voltage control) P15: VL2 P16: Voffset (+) For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937, e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com. 8 |
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