YES Phase Locked Loops (PLL) & Frequency Synthesis Circuits 2,400+

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Part	Manufacturer	Other IC type	Temperature Grade	No. of Terminals	Package Code	Package Shape	Surface Mount	Package Body Material	Maximum Supply Current (Isup)	No. of Functions	Technology	Terminal Form	Nominal Supply Voltage (Vsup)	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width (mm)	Qualification	Minimum Supply Voltage (Vsup)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length
TDA8735T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE			1.27 mm	85 Cel	-30 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16		5.5 V	2.65 mm	7.5 mm	Not Qualified	4.5 V	ADDL SPLY OF 4.5V TO 12V REQD, SELECTABLE 3/4 PRESCALER; 2-BIT SWALLOW COUNTER	e4			10.3 mm
933809550653	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm		3 V	ALSO OPERATES WITH 2V TO 6V IF VCO IS NOT USED		NOT SPECIFIED	NOT SPECIFIED	9.9 mm
TSA5512M-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	COMMERCIAL EXTENDED	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	80 Cel	-10 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	4.5 V					6.5 mm
SA7026DK-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.1 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
TSA5055T-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE			1.27 mm	85 Cel	-20 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V					9.9 mm
935221200118	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16	1	5.5 V	1.1 mm	4.4 mm	Not Qualified	4.5 V		e4			5 mm
TSA5512M	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	COMMERCIAL EXTENDED	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	50 mA	1	BIPOLAR	GULL WING	5 V	5	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.65 mm	80 Cel	-10 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	4.5 V					6.5 mm
SA8016DH	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	9.5 mA	1	BICMOS	GULL WING	3 V	3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	PLL or Frequency Synthesis Circuits	.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16	1	5.5 V	1.1 mm	4.4 mm	Not Qualified	2.7 V					5 mm
TSA5527M-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	16	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-20 Cel		DUAL	R-PDSO-G16		5.5 V	1.5 mm	4.4 mm	Not Qualified	4.5 V	ALSO REQUIRES 4.5V TO 13.5V SUPPLY				5.2 mm
UMA1018M	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	8.5 mA	1	BICMOS	GULL WING	5 V	3/5	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SSOP20,.25	PLL or Frequency Synthesis Circuits	.65 mm	85 Cel	-30 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
SA8015DK-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
TSA5514T-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	COMMERCIAL EXTENDED	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE			1.27 mm	80 Cel	-10 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V					9.9 mm
TSA5523M/C1-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-20 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	4.5 V		e4			6.5 mm
TSA5526T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V		SMALL OUTLINE			1.27 mm	85 Cel	-20 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V	ALSO REQUIRES 4.5V TO 13.5V SUPPLY	e4			9.9 mm
TSA5512T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	COMMERCIAL EXTENDED	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	50 mA	1	BIPOLAR	GULL WING	5 V	5	SMALL OUTLINE	SOP16,.25	PLL or Frequency Synthesis Circuits	1.27 mm	80 Cel	-10 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V		e4			9.9 mm
933656140602	NXP Semiconductors	PHASE LOCKED LOOP	COMMERCIAL	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BIPOLAR	GULL WING	5 V		SMALL OUTLINE			1.27 mm	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16			1.93 mm	3.9 mm	Not Qualified			e4			9.9 mm
TSA5522M	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	30 mA	1	BIPOLAR	GULL WING	5 V	5,12	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SSOP20,.25	PLL or Frequency Synthesis Circuits	.65 mm	85 Cel	-20 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	4.5 V	ADDITIONAL DIVIDE BY 8 PRESCALER				6.5 mm
UMA1015AMDK-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-30 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V	ALSO REQUIRES 2.7V TO 6V SUPPLY				6.5 mm
933656140623	NXP Semiconductors	PHASE LOCKED LOOP	COMMERCIAL	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BIPOLAR	GULL WING	5 V		SMALL OUTLINE			1.27 mm	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16			1.93 mm	3.9 mm	Not Qualified			e4			9.9 mm
NE568AD	NXP Semiconductors	PHASE LOCKED LOOP	COMMERCIAL	20	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1		GULL WING	5 V	5	SMALL OUTLINE	SOP20,.4	PLL or Frequency Synthesis Circuits	1.27 mm	70 Cel	0 Cel		DUAL	R-PDSO-G20		5.5 V	2.65 mm	7.5 mm	Not Qualified	4.5 V					12.8 mm
UMA1021AM/C1	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	OTHER	16	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-30 Cel		DUAL	R-PDSO-G16		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					5.2 mm
MC12210DT	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	16 mA	1	BIPOLAR	GULL WING	3 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSOP20,.25,.26		.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.2 mm	4.4 mm		2.7 V					6.5 mm
CD8402DK	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
CD8402DK-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V		e4			6.5 mm
CD8406DK-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
CD8406DK	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	LSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	3 V		SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	1.5 mm	4.4 mm	Not Qualified	2.7 V					6.5 mm
MC12179D	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	5.6 mA	1	BIPOLAR	GULL WING	5 V		SMALL OUTLINE	SOP8,.25		1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G8		5.5 V	1.75 mm	3.9 mm		4.5 V					4.9 mm
MC12210D	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	16 mA	1	BIPOLAR	GULL WING	3 V		SMALL OUTLINE	SOP16,.23		1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm		2.7 V					9.9 mm
MC12181D	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	5.5 mA	1	BIPOLAR	GULL WING	3 V		SMALL OUTLINE	SOP16,.25		1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm		2.7 V					9.9 mm
74HC4046AD	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V	2/6	SMALL OUTLINE	SOP16,.25	PLL or Frequency Synthesis Circuits	1.27 mm	125 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	R-PDSO-G16	1	6 V	1.75 mm	3.81 mm	Not Qualified	3 V	WITH THREE PHASE COMPARATORS	e4	30	260	9.9 mm
MC145220F	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	30 mA	1		GULL WING	3.5 V		SMALL OUTLINE	SOP20,.3		1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	2.05 mm	5.275 mm		2.7 V					12.575 mm
74HC4046ATD-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm	Not Qualified	2 V					9.9 mm
74HCT4046ADB	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	AUTOMOTIVE	16	SSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V	5	SMALL OUTLINE, SHRINK PITCH	SSOP16,.3	PLL or Frequency Synthesis Circuits	.65 mm	125 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	R-PDSO-G16	1	5.5 V	2 mm	5.3 mm	Not Qualified	4.5 V		e4	30	260	6.2 mm
74HC4046APW-T	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	AUTOMOTIVE	16	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16	1	6 V	1.1 mm	4.4 mm	Not Qualified	2 V		e4			5 mm
74HCT9046ADB	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE				125 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V			Not Qualified	4.5 V
74HCT9046APW-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16	1	5.5 V	1.1 mm	4.4 mm	Not Qualified	4.5 V		e4			5 mm
74HCT7046AD	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V	5	SMALL OUTLINE	SOP16,.25	PLL or Frequency Synthesis Circuits	1.27 mm	125 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	R-PDSO-G16	1	5.5 V			Not Qualified	4.5 V	WITH TWO PHASE COMPARATORS	e4	30	260
74HC7046AT	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm	Not Qualified	2 V					9.9 mm
74HC4046AD/S71,118	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.81 mm		3 V	WITH THREE PHASE COMPARATORS				9.9 mm
74HCT7046AD,118	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V	5	SMALL OUTLINE	SOP16,.25	PLL or Frequency Synthesis Circuits	1.27 mm	125 Cel	-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	R-PDSO-G16	1	5.5 V			Not Qualified	4.5 V	WITH TWO PHASE COMPARATORS	e4	30	260
74HCT7046AD-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE				125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G16	1	5.5 V			Not Qualified	4.5 V	WITH TWO PHASE COMPARATORS	e4
74HCT4046AT-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V					9.9 mm
74HCT7046ATD-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V					9.9 mm
74HC4046AT-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm	Not Qualified	2 V					9.9 mm
MC145202F1	NXP Semiconductors	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	30 mA	1		GULL WING	3 V		SMALL OUTLINE	SOP20,.3		1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20		5.5 V	2 mm	5.25 mm		2.7 V					12.675 mm
74HC7046ATD	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm	Not Qualified	2 V					9.9 mm
74HC7046ATD-T	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		6 V	1.75 mm	3.9 mm	Not Qualified	2 V					9.9 mm
74HCT7046AT	NXP Semiconductors	PHASE LOCKED LOOP	AUTOMOTIVE	16	SOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	CMOS	GULL WING	5 V		SMALL OUTLINE			1.27 mm	125 Cel	-40 Cel		DUAL	R-PDSO-G16		5.5 V	1.75 mm	3.9 mm	Not Qualified	4.5 V					9.9 mm

Phase Locked Loops (PLL) & Frequency Synthesis Circuits

Phase Locked Loops (PLL) and Frequency Synthesis Circuits are electronic circuits used to generate and control stable and precise frequencies for use in various applications, such as communication systems, signal processing, and instrumentation.

A PLL is a feedback system that compares the phase of an input signal to the phase of a reference signal and adjusts the output frequency to match the reference frequency. The basic components of a PLL include a phase detector, a low-pass filter, a voltage-controlled oscillator (VCO), and a frequency divider. The phase detector compares the phase of the input and reference signals and generates an error signal that is filtered and used to adjust the frequency of the VCO. The output of the VCO is divided by a frequency divider to generate the output frequency. PLLs are commonly used for frequency synthesis, clock recovery, and phase modulation/demodulation.

Frequency synthesis circuits are electronic circuits used to generate precise and stable frequencies by combining multiple signals with different frequencies. These circuits use various techniques, such as direct digital synthesis (DDS), fractional-N synthesis, and frequency mixing to generate frequencies. DDS is a technique that uses a digital signal generator to generate a waveform with a specific frequency, phase, and amplitude. Fractional-N synthesis is a technique that uses a PLL to generate a frequency that is a fraction of the reference frequency. Frequency mixing is a technique that combines two signals with different frequencies to generate a signal with a frequency equal to the difference between the two frequencies.

PLLs and frequency synthesis circuits are critical components in many electronic systems that require precise and stable frequencies. These circuits are used in communication systems, signal processing, instrumentation, and other applications where accurate frequency generation and control is required.