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TRF3750IPWR Datasheet(PDF) 1 Page - Texas Instruments |
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TRF3750IPWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page TRF3750 SLWS146A − MARCH 2004 − REVISED NOVEMBER 2004 HIGH-PERFORMANCE INTEGER-N PLL FREQUENCY SYNTHESIZER FEATURES D Single Device Covers Frequencies Up to 2.4 GHz D Dual Supply Range: 3 V − 3.6 V and 4.5 V − 5.5 V D Separate Charge Pump Supply (VCP) Up to 8 V D Simple 3-Wire Serial Interface Allows for Fully Programmable: − A, B, and R Counters − Dual Modulus Prescaler [8/9, 16/17, 32/33, and 64/65] − Charge Pump Current D Lock Detect Output (Digital and Analog) D Versatile Hardware and Software Power Down D Packaged in a 16-Pin TSSOP Thin Quad FlatPack and a 20-Pin 4 x 4 mm QFN Package APPLICATIONS D Wireless Infrastructure − GSM, IS136, EDGE/UWC−136 − IS95, UMTS, CDMA2000 D Portable Wireless Communications D Wireless LAN D Wireless Transceivers D Communication Test Equipment DESCRIPTION The TRF3750 frequency synthesizer is ideal for designing the local os cillator portion of wireless transceivers by providing complete programmability and ultra-low phase noise. The device features a user-selectable dual- modulus prescaler, a 14-bit reference (R) divider, a 6-bit A, and a 13-bit B counter. The R divider allows the user to select the frequency of choice for the phase-frequency detector (PFD) circuit, and with the use of the counters implement an N divider of value N = A + P x B. With an extended charge-pump supply (VCP) of up to 8 V, a wide variety of external VCOs can be used to complete the phase-locked loop. Ultra-low phase noise and reference spur performance make the TRF3750 ideal for generating the local oscillator in the most demanding wireless applications. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 RSET CPOUT CPGND AGND RFIN RFIN AVDD REFIN VCP DVDD MUXOUT LE DATA CLOCK CE DGND PW PACKAGE (TOP VIEW) MUXOUT RGP PACKAGE (TOP VIEW) CPGND 1 2 3 4 5 15 14 13 12 11 6 7 8910 20 19 18 17 16 LE DATA CLOCK CE RFIN RFIN AGND AGND PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. www.ti.com Copyright 2004, Texas Instruments Incorporated |
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