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LG1605DXB-FLP Datasheet(PDF) 1 Page - Agere Systems |
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LG1605DXB-FLP Datasheet(HTML) 1 Page - Agere Systems |
1 / 12 page Data Sheet February 1999 LG1605DXB Limiting Amplifier Features s 28 dB gain, 34 dB differential s Large dynamic range: >60 dB s Wideband response: 8 kHz to 3 GHz s Extremely low ±4 ps delay skew across input range s Complementary 50 Ω I/Os s Surface-mount package s Standard ECL supply (400 mW) Applications s Data/clock main amplifier SONET/SDH OC-48/ STM-16 transmission systems, DWDM systems s Digital video transmission s Interface between 1319 receiver and LG1600 clock and data regenerator s High-speed comparator Functional Description The LG1605DXB is a GaAs wideband limiting ampli- fier with differential inputs and outputs that provides 28 dB of gain (34 dB differential) and 3 GHz of band- width in a 50 Ω environment (Figure 1 shows the block diagram). At low input levels, below 10 mV to 20 mV, the circuit behaves as a linear amplifier. At higher levels, the device goes smoothly into limiting. The device matches the performance of an AGC amplifier but shows none of the AGC bouncing and attack characteristics. 12-3214(F).r3 Figure 1. LG1605DXB Block Diagram 110 pF 25 k Ω 110 pF –+ 13 14 2 3 V–OUT CHIP BOUNDARY GND 1, 4, 5, 6, 15, 16 7 VBR 8 + – – + 9 10 11 12 110 pF 50 Ω VSS V+OUT VBS VBF V+REF V+IN V–IN V–REF 25 k Ω + – – + 50 Ω |
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