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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS843034 датащи(PDF) 1 Page - Renesas Technology Corp |
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ICS843034 датащи(HTML) 1 Page - Renesas Technology Corp |
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1 / 31 page  1 © Integrated Device Technology, Inc December 2, 2015 General Description The 843034 is a general pur pose, low phase noise LVPECL synthesizer which can generate frequencies for a wide var iety of applications. The 843034 has a 4:1 input Multiplexer from which the following inputs can be selected: one differential input, one single-ended input, or two cr ystal oscillators, thus making the device ideal for frequency translation or frequency generation. Each differential LVPECL output pair has an output divider which can be independently set so that two different frequencies can be generated. Additionally, each LVPECL output pair has a dedicated power supply pin so the outputs can r un at 3.3V or 2.5V. The 843034 also supplies a buffered copy of the test clock or cr ystal frequency on the single-ended REF_OUT output pin which can be enabled or disabled, (disabled by default). The output frequency can be programmed using either a ser ial or parallel programming interface. The phase jitter of the 843034 is less than 1ps RMS, making it suitable for use in Fiber Channel, SONET, and Ethernet applications. Pin Assignment Features • Dual differential 3.3V LVPECL outputs which can be set independently for either 3.3V or 2.5V • 4:1 Input Mux: One differential input One single-ended input Two crystal oscillator interfaces • CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSL • TEST_CLK accepts LVCMOS or LVTTL input levels • Output frequency range: 35MHz to 625MHz • Crystal input frequency range: 12MHz to 40MHz • VCO range: 560MHz to 750MHz • Parallel or serial interface for programming feedback divider and output dividers • RMS phase jitter at 333.3MHz, using a 22.222MHz crystal (12kHz to 20MHz): 0.91ps (typical) • Supply voltage modes: LVPECL outputs Core/ Output 3.3V/ 3.3V 3.3V/ 2.5V REF_OUT output Core/ Output 3.3V/ 3.3V • 0°C to 70°C ambient operating temperature • Industrial temperature available upon request with ePad option • Lead-free (RoHS 6) packaging 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 36 35 34 33 32 31 30 29 28 27 26 25 M8 NB0 NB1 NB2 OE_REF OE_A OE_B VCC NA0 NA1 NA2 VEE XTAL_OUT1 XTAL_IN1 XTAL_OUT0 XTAL_IN0 TEST_CLK SEL1 SEL0 VCCA S_LOAD S_DATA S_CLOCK MR 48 47 46 45 44 43 42 41 40 39 38 37 ICS843034 48-PIN LQFP 7mm x 7mm x 1.4mm package body Y Package Top View FemtoClock® Multi-Rate 3.3V, 2.5V LVPECL Frequency Synthesizer 843034 DATA SHEET |
Аналогичный номер детали - ICS843034 |
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Аналогичное описание - ICS843034 |
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