LC72121

PLL Frequency Synthesizers for Electronic Tuning

Overview TheLC72121andtheLC72121MandtheLC72121Varehighinputsensitivity(20mVrmsat130MHz)PLLfrequencysynthesizersfor3Vsystems.TheseICsareserialdata(CCB)compatiblewiththeLC72131,andfeaturetheimprovedinputsensitivityandlowerspuriousradiation(providedbyar

LC72121

PLL 頻率合成器，用于電子調(diào)諧; ? High-speed programmable dividerFMIN: 10 to 160 MHz ... Pulse swallower technique(With built-in divide-by-2 prescaler)AMIN: 2 to 40 MHz ... Pulse swallower technique0.5 to 10 MHz ... Direct division technique\n? IF counterIFIN: 0.4 to 15 MHz ... For AM and FM IF counting\n? Reference frequencyOne of 12 reference frequencies can be selected(using a 4.5 or 7.2 MHz crystal element)1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50, and 100 kHz\n? Phase comparatorSupports dead zone control.Built-in unlocked state detection circuitBuilt-in deadlock clear circuit\n? An MOS transistor for an active low-pass filter is built in.\n? I/O portsOutput-only ports: 4 pinsI/O ports: 2 pinsSupports the output of a clock time base signal.\n? Operating rangesSupply voltage: 2.7 to 3.6 VOperating temperature: -40 to 85°C\n;

LC72121 是一款高輸入靈敏度（130 MHz 時 20 mVrms）PLL 頻率合成器，用于 3 V 系統(tǒng)。該集成電路與 LC72131 可實現(xiàn)串行數(shù)據(jù)兼容，并具有高性能 AM/FM 調(diào)諧器所需的更高輸入靈敏度和更低雜散輻射（由重新設(shè)計的接地系統(tǒng)提供）。

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LC72121

PLL Frequency Synthesizers for Electronic Tuning

LC72121M

PLL Frequency Synthesizers for Electronic Tuning

Overview TheLC72121andtheLC72121MandtheLC72121Varehighinputsensitivity(20mVrmsat130MHz)PLLfrequencysynthesizersfor3Vsystems.TheseICsareserialdata(CCB)compatiblewiththeLC72131,andfeaturetheimprovedinputsensitivityandlowerspuriousradiation(providedbyar

LC72121MA

CMOS IC PLL Frequency Synthesizers for Electronic Tuning

Overview TheLC72121MAarehighinputsensitivity(20mVrmsat130MHz)PLLfrequencysynthesizersfor3Vsystems. TheseICsareserialdata(CCB)compatiblewiththeLC72131K/KMA,andfeaturetheimprovedinputsensitivityandlowerspuriousradiation(providedbyaredesignedgroundsystem)

LC72121V

PLL Frequency Synthesizers for Electronic Tuning

Overview TheLC72121andtheLC72121MandtheLC72121Varehighinputsensitivity(20mVrmsat130MHz)PLLfrequencysynthesizersfor3Vsystems.TheseICsareserialdata(CCB)compatiblewiththeLC72131,andfeaturetheimprovedinputsensitivityandlowerspuriousradiation(providedbyar

LC72121V

PLL Frequency Synthesizer for Electronic Tuning; ? High-speed programmable dividerFMIN: 10 to 160 MHz ... Pulse swallower technique(With built-in divide-by-2 prescaler)AMIN: 2 to 40 MHz ... Pulse swallower technique0.5 to 10 MHz ... Direct division technique\n? IF counterIFIN: 0.4 to 15 MHz ... For AM and FM IF counting\n? Reference frequencyOne of 12 reference frequencies can be selected(using a 4.5 or 7.2 MHz crystal element)1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50, and 100 kHz\n? Phase comparatorSupports dead zone control.Built-in unlocked state detection circuitBuilt-in deadlock clear circuit\n? An MOS transistor for an active low-pass filter is built in.\n? I/O portsOutput-only ports: 4 pinsI/O ports: 2 pinsSupports the output of a clock time base signal.\n? Operating rangesSupply voltage: 2.7 to 3.6 VOperating temperature: -40 to 85°C\n\n;

The LC72121V is high input sensitivity (20 mVrms at 130 MHz) PLL frequency synthesizer for 3 V systems. This IC is serial data compatible with the LC72131, and feature the improved input sensitivity and lower spurious radiation (provided by a redesigned ground system) required in high-performance AM/FM tuners.\n\n

LC72121_03

PLL Frequency Synthesizers for Electronic Tuning

LC72121MA-AH

IC PLL FREQ SYSTHESIZER;

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LC72121MA-AH

Package：24-SOP（0.236"，6.00mm 寬）；包裝：卷帶（TR） 類別：集成電路（IC） 時鐘發(fā)生器，PLL，頻率合成器 描述：IC PLL FREQ SYSTHESIZER