ATA06212AD1C

ATA06212AD1C AGC Transimpedance Amplifier Preliminary - Rev 1 FEATURES Vdd2 Vdd2 Single +5 Volt Supply Automatic Gain Control Excellent Sensitivity (- 34 dBm) 0 dBm Optical Overload Vdd1 GND GND I in GND V out GND GND GND CBY CBY GND CAGC GND APPLICATIONS SONET OC-12/SDH STM-4 Receiver Low Noise RF Amplifier Electrical Characteristics (1) (TA= 25°C, VDD =+5.0V + 10%, CDIODE +CSTRAY = 0.7 pF, Detector Cathode to IIN) PARAMETER Transresistance(RL=¥ ,IDC < 500 nA) Transresistance (RL=50 W ) (1) Bandwidth - 3dB Input Resistance (2) Output Resistance Input Offset Voltage Output Offset Voltage AGC Threshold (IIN) (3) AGC Time Constant (6) Optical Overload (4) Optical Sensitivity (7) Input Noise Current (RMS) (5) Supply Current Operating Voltage Range Operating T emperature Range + 4.5 - 40 0 30 1.0 1.0 MIN 7 3.5 400 TYP 11 5 425 300 43 1.3 1.4 40 4.2 +1 - 34 40 30 + 5.0 50 45 + 5.5 85 60 MAX UNIT k Ω k Ω D1 MHz Ω Ω Volts Volts µA µsec dBm dBm nA mA Volts ° C NOTES (1) f = 50 MHz (2) Measured with IIN below AGC Threshold. During AGC, input impedance will decrease proportionally to IIN. (3) Defined as the IIN where Transresistance has decreased by 50%. (4) See note on “ Indirect Measurement of Optical Overload.” (5) See note on “ Input Referred Noise Current.” (6) CAGC = 56 pF (7) Parameter is guaranteed (not tested) by design and characterization data @ 622 Mb/s, assuming detector responsively of 0.95. ATA06212AD1C Absolute Maximum Ratings V DD1 ...