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NEC在中国的业务始于1972年向中国提供卫星地面站建设服务,并先后涉足交换机、半导体、光通信、计算机、移动通信、IT解决方案等领域,建立了多家独资、合资企业。 进入2010年,为了更好的满足市场需求,NEC决定在中国实行统一的战略和业务运营体制,以NEC(中国)有限公司作为大中华区地区总部,统领集团在华各项业务。主要内容涵盖运营商网络业务、IT解决方案业务、IT网络平台业务、投影机显示器产品、软件开发销售。作为NEC(中国)有限公司重要组成部分的NEC中国研究院立足中国、着眼未来,正在进行着包括基础与应用领域的研究和开发。
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UPC2757TB-E3
型号:
UPC2757TB-E3
品牌:
NEC
产品分类:
集成电路
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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