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| IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Description The IT3011 is a limiting amplifier for use as a post amplifier in OC-192 and STM-64 optical receivers. Signals as small as +/-7 mVpp differential can be amplified to 1.28 Vpp differential. Offset correction and output voltage control are provided. Both AC and DC coupling are allowed at the input and output. The high sensitivity allows the device to be used at the output of a transimpedance amplifier. 3-dB bandwidth: 10 GHz Differential gain: 42 dB Saturated output: 640 mVpp on each output into 50 ohms Input sensitivity 2.5 mVpp at BER<1E-12 Single bias supply: -5.2 V Power consumption: 494 mW Bias current: 95 mA DC offset correction Amplitude Voltage Control Low RMS jitter Low-cost JEDEC QFP-N (MO-220) package Features www..com Absolute Maximum Ratings S ymbol Vee1,2 Vd Vm T ch T stg Parameters/conditions Power 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 Symbol Tc Vee1 Vee2 Iee1+Iee2 Voffset (+) Voffset (-) Vctrl Vd Vm Vindc Parameters/conditions Operating temperature range (T case) Power supply voltage Power supply voltage T otal 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 (with DC-coupled input) Min. 0 -5.45 -5.45 80 -5 -5 -5.2 7 14 Typ. -5.2 -5.2 95 Max. 85 -4.95 -4.95 110 5 5 0 1000 1000 Units o C V V mA V V V mV mV V AC and DC coupled -0.5 0.5 www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 1 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Electrical Characteristics At ambient Temperature Vee1,2=-5.2 V Symbol P G B3dB RLin RLout Vin Parameters/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, 12.5Gb/s) Output peak to peak voltage (either Q or /Q) (Vctrl=0V for max. output voltage) Vout sensitivity vs. bias (Vee=-5.2 V +/-5%) Output DC voltage (DC coupled to 50 ohm load) Rise time (20% - 80%) Fall time (20% - 80%) Jitter peak to peak -450 -350 21 17 9 Min. 416 41 9 12 10 +/-2.5 590 640 +/-11 -250 27 23 14 Typ. 494 42 10 20 15 Max. 572 Units mW dB GHz dB dB mVpp mVpp % mV ps ps ps www..com Vout Vout Voutdc Trse Tfse Jpp S-Parameter Data (Measured on connectorized Evaluation board) IT3011 Single Ended Gain 48 44 40 36 32 28 24 20 16 12 8 4 0 0 2 4 6 8 10 12 14 16 18 0 -5 -10 -15 IT3011 Input Return Loss Vee1=Vee2=-5.2 V Iee1+Iee2=95 mA S21 (dB) S11 (dB) -20 -25 -30 -35 -40 -45 -50 0 2 4 6 8 10 12 14 16 18 Freq. (GHz) Freq. (GHz) IT3011 Output Return Loss 0 -5 -10 -15 0 -10 -20 -30 IT3011 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. (GHz) Freq. (GHz) www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 2 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Eye Diagram Performance Vee1=Vee2=-5.2 V Iee1+Iee2=95 mA www..com Bit rate: 10.7 Gb/s Vin =+/-6 mVpp, Vout = +/-610 mVpp Bit rate: 12.5 Gb/s Vin =+/-6 mVpp, Vout = +/-603 mVpp Bit rate: 10.7 Gb/s Vin =+/-8 mVpp, Vout = +/-640 mVpp Bit rate: 12.5 Gb/s Vin =+/-8 mVpp, Vout = +/-638 mVpp Bit rate: 10.7 Gb/s Vin =+/-200 mVpp, Vout = +/-644 mVpp Bit rate: 12.5 Gb/s Vin =+/-200 mVpp, Vout = +/-644 mVpp www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 3 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Eye Diagram Performance (cont.) www..com Bit rate: 10.7 Gb/s Vin =+/-200 mVpp, Vout = +/-653 mVpp Bit rate: 12.5 Gb/s Vin = +/-200 mVpp, Vout = +/-653 mVpp Bit rate: 10.7 Gb/s Vin =+/-1 mVpp, Vout = +/-653 mVpp Bit rate: 12.5 Gb/s Vin =+/-1 mVpp, Vout = +/-653 mVpp Input Sensitivity Vee1=Vee2=-5.2V Iee1+Iee2=95mA Input sensitivity = +/-2.5 mVpp differential input, 12.5 Gb/s BER = <1E-12 Output voltage = 367 mVpp single-ended www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 4 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Performance As Function of Input Voltage Output Voltage (+/-mV) Input/Output Characteristic 700 Output Voltage (+/-mV) 700 650 600 550 500 450 400 350 300 1 Input/Output Characteristic 650 600 550 500 450 400 350 300 0 2 4 6 8 10 12 14 16 18 20 Input (+/-mV) www..com 10 100 Input (+/-mV) 1000 Input/Output DC Characteristics 0 -100 Peak to Peak Jitter vs. Input 30 27 24 Jitter (pp-psec) 21 18 15 12 9 6 3 10.7 Gbps 12.5 Gbps DC Output (mV) -200 -300 -400 -500 -600 -700 -800 -280 -240 -200 -160 -120 -80 -40 0 40 80 120 160 200 240 280 0 1 10 100 Input Amplitude (mV pp) 1000 DC Input Offset (*) (mV) Rise Time vs Input Voltage @ 12.5 Gb/s 40 35 Fall Time vs Input Voltage @ 12.5 Gb/s 35 30 Rise Time (psec) Fall Tim e 25 20 15 10 5 0 1 10 100 1000 Rise Time (psec) 30 25 20 15 10 5 0 1 10 100 1000 Input Amplitude (+/-mVpp) Input Amplitude (+/-mVpp) (*) Input applied to the offset control pin (Voffset1) and open output. This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. www.iterrac.com August 17, 2005 Doc. 1167 Rev9 5 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Output Voltage Control 700 600 Eye Amplitude (mV) 500 Eye Amplitude vs Vctrl 100 95 90 Power Supply Current Current (mA) -5 -4.5 -4 -3.5 -3 -2.5 -2 -1.5 -1 -0.5 0 400 300 200 100 0 -100 -5.5 85 80 75 70 65 60 -6 -5 -4 -3 -2 -1 0 www..com Control Voltage Vtrl (Volts) Control Voltage (Volts) Bit rate: 12.5 Gb/s, Vctrl =-1.7 V Vin =+/-200 mVpp, Vou t =+/-353 mVpp Bit rate: 12.5 Gb/s, Vctrl =-2.7 V Vin =+/-200 mVpp, Vout =+/-137mVpp www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 6 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Recommended Operational Setup Apply -5.2 V at Vee1 and Vee2 Apply 0 V at Vctrl for maximum output Vctrl 560pF 560pF 0.1F 1F www..com DC blocking capacitors optional Voffset (+) 0.1F VL1 Din VL2 Q RF input /Din IT3011 /Q RF output Voffset (-) 0.1F Vee1 Vcb Vee2 Vee= -5.2 V 560pF 0.1F Vee= -5.2V 0.1F 560pF 0.1F www.iterrac.com This is a Production data sheet. See "Product Status Definitions" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 7 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 IT3011 12.5 Gb/s High-Sensitivity Limiter Amplifier Package Drawings, Pinouts www..com Pinouts: 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" on Web site or catalog for product development status. August 17, 2005 Doc. 1167 Rev9 8 iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 |
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