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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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1SV239 데이터시트(PDF) 53 Page - NXP Semiconductors |
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1SV239 데이터시트(HTML) 53 Page - NXP Semiconductors |
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53 / 130 page  54 NXP Semiconductors RF Manual 16th edition NXP’s BGU703x and BGU704x low-noise amplifiers (LNAs) upgrade overall picture quality with improved signal handling (NF, dynamic range), while reducing the number of external components. Produced in NXP’s own QUBiC4+ Si BiCMOS process, they improve signal handling by compensating for the signal loss at the tuner switch. This can improve system performance by as much as 7 to 10 dB. The BGU7031, BGU7041, and BGU7044 are LNAs with fixed gain. The BGU7032, BGU7042, and BGU7045 have an additional bypass mode, and the BGU7033 adds two gain levels along with the bypass mode. In bypass mode, the devices consume less than 5 mA of current. Integrated biasing and 75 Ω matching reduces footprint by eliminating as many as 15 components compared to discrete solutions. All the devices can be used with discrete or Si can tuners, as well as with on-board tuners. They deliver more robust ESD performance compared to GaAs solutions, withstanding >2 kV human body model (HBM) and >1.5 kV charged device model (CDM). Key features Internally biased Fixed G p = 10 dB: BGU7031 (5 V), BGU7041 (3.3 V), and Fixed G p = 14 dB: BGU7044 (3.3 V) Programmable between G p = 10 dB and bypass: BGU7032 (5 V), BGU7042 (3.3 V), and programmable between G p = 14 dB and bypass: BGU7045 (3.3 V) Programmable between G p = 10 dB, 5 dB and bypass: BGU7033 (5 V) Flat gain between 40 MHz and 1 GHz Output power at 1 dB gain compression (P L(1 dB) ) ranging from 9 to 14 dBm Noise figure as low as 2.8 dB High linearity with an OIP3 of 29 dBm 75 Ω input and output impedance Power-down during bypass mode ESD protection >2 kV HBM, >1.5 kV CDM on all pins Key trends Multiple tuners in TV, DVR/PVR, and set-top box applications, requiring improved signal handling Use of 3.3 V Si tuner ICs, perfect match with our 3.3 V LNAs (BGU704x) Applications Terrestrial and cable set-top boxes (STBs) Silicon and can tuners Personal and digital video recorders (PVRs and DVRs) Home networking and in-house signal distribution BGU703x evaluation board 2.3TVandsatellite 2.3.1 LNAswithprogrammablegain&bypassoptionforimprovedtunerperformance NXP LNAs BGU703x &BGU704x for TVs/STBs Designed for high linearity and low noise, these 3.3 and 5 V wideband LNAs support multi-tuner applications in TVs, DVR/PVRs, and STBs operating between 40 MHz and 1 GHZ. A unique programmable gain with bypass mode compensates for tuner switch signal loss (important in multi-tuner systems), and improves overall system performance by 7 to 10 dB. |
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