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| IT3018 12.5 Gb/s High-Gain RX Limiter Amplifier Description The IT3018 is a limiting amplifier for use as a post amplifier in OC-192 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 IT3018 allows the device to be used at the output of a transimpedance amplifier. www..com Features 3 dB bandwidth: 10 GHz Differential gain: 50 dB Saturated output: 1.1 Vpp, each output into 50 ohm 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 Low-cost JEDEC QFP-N (MO-220) package 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 www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 1 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 12.5 Gb/s High-Gain RX Limiter Amplifier Electrical Characteristics At ambient temperature Vee1,2=-5.2 V www..com Symbol P G B3dB RLin RLout Vin Vout 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 Diff. 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) Min. 530 49 9 10 10 +/-3 Typ. 624 50 10 20 15 Max. 686 Units mW dB GHz dB dB mVpp 1010 740 -750 1100 800 +/-11 -650 24 22 12 -550 30 26 17 mVpp mVpp % mV ps ps ps Vout Voutdc Trse Tfse Jpp 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 S-Parameter Data Measured on connectorized evaluation board S21 (dB) 52 48 44 40 36 32 28 24 20 16 12 8 4 0 0 2 4 IT3018 Single Ended Gain 0 -5 -10 -15 IT3018 Input Return Loss S11 (dB) Vee1=Vee2=-5.2 V Iee1+Iee2=120 mA -20 -25 -30 -35 -40 -45 -50 0 2 4 6 8 10 12 14 16 18 6 8 10 12 14 16 18 Freq. (GHz) IT3018 O utput Return Loss 0 -5 -10 -15 0 -10 -20 -30 Freq. (GHz) IT3018 Isolation S22 (dB) -20 -25 -30 -35 -40 -45 -50 0 2 4 6 8 10 12 14 16 18 S12 (dB) -40 -50 -60 -70 -80 -90 -100 0 2 4 6 8 10 12 14 16 18 Freq. (G Hz) Freq. (GHz) www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 2 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 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 www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 3 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 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 This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 www.iterrac.com August 17, 2005 Doc. 1189 Rev 9 4 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 12.5 Gb/s High-Gain RX Limiter Amplifier Performance As a Function Of Input Voltage Output Voltage (+/- mV) Input/Output Characteristic 1150 1100 1050 1000 950 900 850 800 750 700 0 2 4 6 8 10 12 14 16 18 20 Input (+/- mV) Input/Output Characteristic 1150 1100 1050 1000 950 900 850 800 750 700 1 10 100 1000 Input (+/- mV) www..com Output Voltage (+/- mV) 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. www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 5 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 12.5 Gb/s High-Gain RX Limiter Amplifier Output Voltage Control 12 0 0 10 0 0 Eye Am plitude vs Vctrl 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 -2 0 0 -6 -4 -2 0 www..com 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=+/-20 0mVpp, Vout=+/-260 mVpp www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 6 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 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 www..com for maximum output DC blocking capacitors optional Vctrl 1 F 560pF 560pF 1 F Voffset (+) 0.1 F VL1 Din VL2 /Q RF Input /Din IT3018 Q RF Output Voffset (-) 0.1 F Vee1 Vcb Vee2 Vee = -5.2 V 560pF 1 F Vee = -5.2V 1 F 560pF 1 F www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 7 Phone (650) 424-1937, Fax (650) 424-1938 IT3018 12.5 Gb/s High-Gain RX Limiter Amplifier Package Drawings and Pinouts www..com Pin Outs: P1: GND P2: Din (RF Input) P3: /Din (RF Input) P4: GND P5: Voffset (-) P6: Vee1 P7: Vcb P8: Vee2 P9: GND P10: Q (RF Out) P11: /Q (/RF Out) P12: GND P13: VL1 P14: Vctrl (voltage control) P15: VL2 P16: Voffset (+) www.iterrac.com This is a Production data sheet. See "Product Status Definitions" iTerra Communications on Web site or catalog for product development status. 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 August 17, 2005 Doc. 1189 Rev 9 8 Phone (650) 424-1937, Fax (650) 424-1938 |
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