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8T73S1802 Folha de dados(PDF) 1 Page - Integrated Device Technology |
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8T73S1802 Folha de dados(HTML) 1 Page - Integrated Device Technology |
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1 / 24 page  DATA SHEET 1:2 Clock Fanout Buffer and Frequency Divider 8T73S1802 8T73S1802 REVISION 1 08/31/15 1 ©2015 Integrated Device Technology, Inc. General Description The 8T73S1802 is a fully integrated clock fanout buffer and frequency divider. The input signal is frequency-divided and then fanned out to one differential LVPECL and one LVCMOS output. Each of the outputs can select its individual divider value from the range of ÷1, ÷2, ÷4 and ÷8. Three control inputs EN, SEL0 and SEL1 (3-level logic) are available to select the frequency dividers and the output enable/disable state. The single-ended LVCMOS output is phase-delayed by 650ps to minimize coupling of LVCMOS switching into the differential output during its signal transition. The 8T73S1802 is optimized to deliver very low phase noise clocks. The VBB output generates a common-mode voltage reference for the differential clock input so that connecting the VBB pin to an unused input (nCLK) enables to use of single-ended input signals. The extended temperature range supports wireless infrastructure, telecommunication and networking end equipment requirements. The 8T73S1802 can be used with a 3.3V or a 2.5V power supply. The device is a member of the high-performance clock family from IDT. Features • High-performance fanout buffer clock and fanout buffer • Input clock signal is distributed to one LVPECL and one LVCMOS output • Configurable output dividers for both LVPECL and LVCMOS outputs • Supports clock frequencies up to 1000MHz (LVPECL) and up to 200MHz (LVCMOS) • Flexible differential input supports LVPECL, LVDS and CML •VBB generator output supports single-ended input signal applications • Optimized for low phase noise • 650ps delay between LVCMOS and LVPECL minimizes coupling between outputs • Supply voltage: 3.3V or 2.5V • -40°C to 85°C ambient operating temperature • 16 VFQFN package (3mm x 3mm) |
Nº de peça semelhante - 8T73S1802 |
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Descrição semelhante - 8T73S1802 |
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