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SA5204AD Fiches technique(PDF) 2 Page - NXP Semiconductors |
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SA5204AD Fiches technique(HTML) 2 Page - NXP Semiconductors |
2 / 13 page Philips Semiconductors Product specification SA5204A Wide-band high-frequency amplifier 2 853-1599 18662 DESCRIPTION The SA5204A family of wideband amplifiers replaces the SA5204 family. The ‘A’ parts are fabricated on a rugged 2 µm bipolar process featuring excellent statistical process control. Electrical performance is nomically identical to the original parts. The SA5204A is a high-frequency amplifier with a fixed insertion gain of 20dB. The gain is flat to ±0.5dB from DC to 200MHz. The -3dB bandwidth is greater than 350MHz. This performance makes the amplifier ideal for cable TV applications. The SA5204A operates with a single supply of 6V, and only draws 25mA of supply current, which is much less than comparable hybrid parts. The noise figure is 4.8dB in a 75 Ω system and 6dB in a 50Ω system. The SA5204A is a relaxed version of the SA5205. Minimum guaranteed bandwidth is relaxed to 350MHz and the “S” parameter Min/Max limits are specified as typicals only. Until now, most RF or high-frequency designers had to settle for discrete or hybrid solutions to their amplification problems. Most of these solutions required trade-offs that the designer had to accept in order to use high-frequency gain stages. These include high power consumption, large component count, transformers, large packages with heat sinks, and high part cost. The SA5204A solves these problems by incorporating a wideband amplifier on a single monolithic chip. The part is well matched to 50 or 75 Ω input and output impedances. The standing wave ratios in 50 and 75 Ω systems do not exceed 1.5 on either the input or output over the entire DC to 350MHz operating range. Since the part is a small, monolithic IC die, problems such as stray capacitance are minimized. The die size is small enough to fit into a very cost-effective 8-pin small-outline (SO) package to further reduce parasitic effects. No external components are needed other than AC-coupling capacitors because the SA5204A is internally compensated and matched to 50 and 75 Ω. The amplifier has very good distortion specifications, with second and third-order intermodulation intercepts of +24dBm and +17dBm, respectively, at 100MHz. The part is well matched for 50 Ω test equipment such as signal generators, oscilloscopes, frequency counters, and all kinds of signal analyzers. Other applications at 50 Ω include mobile radio, CB radio, and data/video transmission in fiber optics, as well as broadband LANs and telecom systems. A gain greater than 20dB can be achieved by cascading additional SA5204As in series as required, without any degradation in amplifier stability. PIN CONFIGURATION D Packages 8 7 6 5 4 3 2 1 VCC VIN GND GND VCC VOUT GND GND TOP VIEW 20dB SR00193 Figure 1. Pin Configuration FEATURES • Bandwidth (min.) 200 MHz, ±0.5dB 350 MHz, -3dB • 20dB insertion gain • 4.8dB (6dB) noise figure Z O=75Ω (ZO=50Ω) • No external components required • Input and output impedances matched to 50/75Ω systems • Surface-mount package available • Cascadable • 2000V ESD protection APPLICATIONS • Antenna amplifiers • Amplified splitters • Signal generators • Frequency counters • Oscilloscopes • Signal analyzers • Broadband LANs • Networks • Modems • Mobile radio • Security systems • Telecommunications ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 8-Pin Plastic Small Outline (SO) package –40 to +85 °C SA5204AD SOT96-1 |
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