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廣州市九芯電子科技有限公司創立于廣州市高新技術開發區廣州科學城，公司總部設在廣州天河區，是一家專注于語音芯片研究與生產的高新技術企業。公司主要從事各種語音芯片、錄音芯片、音樂芯片、語音模塊等。
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UPC2757TB-E3
型號：
UPC2757TB-E3
品牌：
NEC
產品分類：
集成電路
描述：
DESCRIPTION The μPC2757TB and μPC2758TB are silicon monolithic integrated circuit designed as 1st frequency down converter for cellular/cordless telephone receiver stage. The ICs consist of mixer and local amplifier. The μPC2757TB features low current consumption and the μPC2758TB features improved intermodulation. From these two version, you can chose either IC corresponding to your system design. These TB suffix ICs which are smaller package than conventional T suffix ICs contribute to reduce your system size. The μPC2757TB and μPC2758TB are manufactured using NEC’s 20 GHz fT NESAT? silicon bipolar process. This process uses silicon nitride passivation film and gold electrodes. These materials can protect chip surface from external pollution and prevent corrosion/migration. Thus, this IC has excellent performance, uniformity and reliability. FEATURES ? Wideband operation : fRFin = 0.1 to 2.0 GHz, fIFin = 20 to 300 MHz ? High-density surface mounting : 6-pin super minimold package ? Low current consumption : ICC = 5.6 mA TYP. @ μPC2757TB ??????????????????????????? ????????? ICC = 11 mA TYP. @ μPC2758TB ? Supply voltage : VCC = 2.7 to 3.3 V ? Minimized carrier leakage : Due to double balanced mixer ? Equable output impedance : Single-end push-pull IF amplifier ? Built-in power save function APPLICATIONS ? Cellular/cordless telephone up to 2.0 GHz MAX. (example: GSM, PDC800M, PDC1.5G and so on): μPC2758TB ? Cellular/cordless telephone up to 2.0 GHz MAX. (example: CT1, CT2 and so on): μPC2757TB
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