Details, datasheet, quote on part number: SM5168BAV
CategoryCommunication => Wireless => Frequency Synthesizers
DescriptionHigh-speed Low-voltage Fixed-frequency PLL ic
CompanyNippon_Precision_Circuits America
DatasheetDownload SM5168BAV datasheet
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Features, Applications

The SM5168 series are PLL synthesizer ICs fabricated using NPC's Molybdenum-gate CMOS process. They provide several combinations of reference and comparator frequency divider ratios, set in master-slice, making them ideal for frequency synthesizers in IF stages of mobile communications devices. They also feature a lock detect signal output (LD).


to 3.6V operating supply voltage range Maximum operating frequency SM5168A series: 200MHz, VDD 2.7V SM5168C series: 340MHz, VDD = 2.7V Operating current consumption SM5168A series: 3.3mA (typ, at 0.3Vp-p, VDD = 3.0 V) SM5168C series: 4mA (typ, at 0.3Vp-p, VDD V) SM5168A (built-in standby function) and SM168C (dual frequency divider ratios) series available, as set by master-slice Charge pump output with output polarity for connection to passive filter Lock detect function output to 85C operating temperature range 8-pin plastic VSOP

Mobile communications Portable telephones Related applications

Version SM5168A series SM5168C series Maximum operating frequency 200MHz 340MHz Reference/comparator frequency dividers 1 2 Frequency divider ratio range1 Standby function N counter 65535 R counter to 65535 Yes No

1. SM5168C series: Dual frequency divider ratios are set within the ratio ranges.

Number Name VDD DO VSS FIN OPR (SM5168A series) TR (SM5168C series) 7 8 TEST LD XIN O I I/O 3.6 V supply Phase comparator error signal three-state output pin. Built-in charge pump means that this output can be connected to a low-pass filter. The output polarity is preset for connection to a passive filter. Ground pin Phase comparator frequency divider (N-counter) signal input pin. Feedback resistor built-in, so input can be AC-coupled. Power-save control pin. Start when HIGH, standby mode when LOW. I Frequency divider switching control. Switches between 2 sets of reference and comparator frequency dividers. Test pin. Leave open or connect to VSS for normal operation. Unlock signal output pin. (Unlocked when LOW) Reference frequency divider (R-counter) external clock input pin. Feedback resistor built-in, so input can be AC-coupled. Description


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