INDUSTRIAL 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	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
WB1310XX	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY			BICMOS	GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
IMI145151QB	Infineon Technologies		INDUSTRIAL	28	QCCJ	SQUARE	YES	PLASTIC/EPOXY			CMOS	J BEND		3/5	CHIP CARRIER	LDCC28,.5SQ	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-J28				Not Qualified			e0
IMI145155018PB	Infineon Technologies		INDUSTRIAL	18	DIP	RECTANGULAR	NO	PLASTIC/EPOXY			CMOS	THROUGH-HOLE		3/7	IN-LINE	DIP18,.3	PLL or Frequency Synthesis Circuits	2.54 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T18				Not Qualified			e0
WB1315XX-TR	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY			BICMOS	GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
WB1305XX	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY			BICMOS	GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
MB15F72UV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	18	VQCCN	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	NO LEAD	2.7 V		CHIP CARRIER, VERY THIN PROFILE			.45 mm	85 Cel	-40 Cel		QUAD	R-PQCC-N18	3.6 V	.5 mm	2.4 mm	Not Qualified	2.4 V			NOT SPECIFIED	NOT SPECIFIED	2.7 mm
MB15F63ULPFT	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	10 mA		BICMOS	GULL WING	3 V	3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20				Not Qualified
MB15F78SPPFT	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	GULL WING	2.7 V		SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20	3.6 V	1.2 mm	4.4 mm	Not Qualified	2.4 V	SELECTABLE 32/33 OR 64/65 FOR 2550 MHZ PRESCALER, AND 16/17 OR 32/33 FOR 1200 MHZ PRESCALER		NOT SPECIFIED	NOT SPECIFIED	6.5 mm
IMI4347PB	Infineon Technologies	PHASE DETECTOR	INDUSTRIAL	8	DIP	RECTANGULAR	NO	PLASTIC/EPOXY			CMOS	THROUGH-HOLE		3/5	IN-LINE	DIP8,.3	PLL or Frequency Synthesis Circuits	2.54 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T8				Not Qualified			e0
MB15F78ULWQN	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	QCCN	SQUARE	YES	PLASTIC/EPOXY	3.9 mA		BICMOS	NO LEAD		2.4/3.6	CHIP CARRIER	LCC20,.16SQ,20	PLL or Frequency Synthesis Circuits	.5 mm	85 Cel	-40 Cel		QUAD	S-PQCC-N20				Not Qualified
MB15E07SRPV1	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1		BUTT	3.75 V		CHIP CARRIER, VERY THIN PROFILE			.8 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	5 V	.8 mm	3.4 mm	Not Qualified	2.7 V			NOT SPECIFIED	NOT SPECIFIED	4.55 mm
MB15E05SLPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	3 V		CHIP CARRIER, VERY THIN PROFILE				85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	3.6 V	.8 mm	3.4 mm	Not Qualified	2.4 V			NOT SPECIFIED	NOT SPECIFIED	4.55 mm
MB15E06SRPFT	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	11.5 mA			GULL WING	3 V	3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16				Not Qualified
IMI145155020QB	Infineon Technologies		INDUSTRIAL	20	QCCJ	SQUARE	YES	PLASTIC/EPOXY			CMOS	J BEND		3/7	CHIP CARRIER	LDCC20,.4SQ	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-J20				Not Qualified			e0
MB15F72SPPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	2.7 V		CHIP CARRIER, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B20	3.6 V	.8 mm	3.4 mm	Not Qualified	2.4 V	SELECTABLE 64/65 OR 128/129 FOR 1300 MHZ PRESCALER, AND 8/9 OR 16/17 FOR 350 MHZ PRESCALER		NOT SPECIFIED	NOT SPECIFIED	3.6 mm
WB1337TX	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY			BICMOS	GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
MB15E07SLPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	3 V		CHIP CARRIER, VERY THIN PROFILE				85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	3.6 V	.8 mm	3.4 mm	Not Qualified	2.4 V	ALSO REQUIRES 2.4V TO 5.5V SUPPLY		NOT SPECIFIED	NOT SPECIFIED	4.55 mm
IMI145156020QB	Infineon Technologies		INDUSTRIAL	20	QCCJ	SQUARE	YES	PLASTIC/EPOXY			CMOS	J BEND			CHIP CARRIER	LDCC20,.4SQ	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-J20				Not Qualified			e0
MB15F78SPPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	2.7 V		CHIP CARRIER, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B20	3.6 V	.8 mm	3.4 mm	Not Qualified	2.4 V	SELECTABLE 32/33 OR 64/65 FOR 2550 MHZ PRESCALER, AND 16/17 OR 32/33 FOR 1200 MHZ PRESCALER		NOT SPECIFIED	NOT SPECIFIED	3.6 mm
IMI4347YB	Infineon Technologies	PHASE DETECTOR	INDUSTRIAL	8	SOP	RECTANGULAR	YES	PLASTIC/EPOXY			CMOS	GULL WING		3/5	SMALL OUTLINE	SOP8,.3	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G8				Not Qualified			e0
MB15E06SRPV1	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1		BUTT	3 V		CHIP CARRIER, VERY THIN PROFILE			.8 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	4 V	.8 mm	3.4 mm	Not Qualified	2.7 V			NOT SPECIFIED	NOT SPECIFIED	4.55 mm
CYW2315X	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY				GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
MB15F73ULPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	2.7 V		CHIP CARRIER, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B20	3.6 V	.6 mm	3.4 mm	Not Qualified	2.4 V	SELECTABLE 64/65 OR 128/129 FOR 2250 MHZ PRESCALER, AND 8/9 OR 16/17 FOR 600 MHZ PRESCALER				3.6 mm
IMI145151XB	Infineon Technologies		INDUSTRIAL	28	SOP	RECTANGULAR	YES	PLASTIC/EPOXY			CMOS	GULL WING		3/5	SMALL OUTLINE	SOP28,.4	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G28				Not Qualified			e0
MB15F78ULPVA	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	2.7 V		CHIP CARRIER, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B20	3.6 V	.6 mm	3.4 mm	Not Qualified	2.4 V	SELECTABLE 32/33 OR 64/65 PRESCALER FOR THE 2600 MHZ AND 16/17 OR 32/33 PRESCALER FOR THE 1200 MHZ		NOT SPECIFIED	NOT SPECIFIED	3.6 mm
WB1337TX-TR	Infineon Technologies		INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY			BICMOS	GULL WING		3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G20				Not Qualified			e0
MB15F73ULPFT	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	20	TSSOP	RECTANGULAR	YES	PLASTIC/EPOXY	2.8 mA		BICMOS	GULL WING		2.4/3.6	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	PLL or Frequency Synthesis Circuits	.635 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G20				Not Qualified
IMI4350YB	Infineon Technologies	PHASE DETECTOR	INDUSTRIAL	8	SOP	RECTANGULAR	YES	PLASTIC/EPOXY			CMOS	GULL WING		3/5	SMALL OUTLINE	SOP8,.3	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G8				Not Qualified			e0
CYW2325LFITR	Infineon Technologies		INDUSTRIAL	20	QCCN	SQUARE	YES	PLASTIC/EPOXY				NO LEAD		3/5	CHIP CARRIER	LCC20,.16SQ,20	PLL or Frequency Synthesis Circuits	.5 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-N20				Not Qualified			e0
MB15E07SLPV1	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1	BICMOS	BUTT	3 V		CHIP CARRIER, VERY THIN PROFILE				85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	3.6 V	.8 mm	3.4 mm	Not Qualified	2.4 V			NOT SPECIFIED	NOT SPECIFIED	4.55 mm
IMI145152028QB	Infineon Technologies		INDUSTRIAL	28	QCCJ	SQUARE	YES	PLASTIC/EPOXY			CMOS	J BEND		3/9	CHIP CARRIER	LDCC28,.5SQ	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-J28				Not Qualified			e0
MB15E07LPFV1	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	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-G16	3.6 V	1.45 mm	4.4 mm	Not Qualified	2.7 V	ALSO REQUIRES 0V TO 6V SUPPLY		NOT SPECIFIED	NOT SPECIFIED	5 mm
MB15E06SRPV	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	16	VBCC	RECTANGULAR	YES	PLASTIC/EPOXY		1		BUTT	3 V		CHIP CARRIER, VERY THIN PROFILE			.8 mm	85 Cel	-40 Cel		BOTTOM	R-PBCC-B16	4 V	.8 mm	3.4 mm	Not Qualified	2.7 V			NOT SPECIFIED	NOT SPECIFIED	4.55 mm
TBB206G	Infineon Technologies		INDUSTRIAL	14	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	3.5 mA		CMOS	GULL WING	5 V	5	SMALL OUTLINE	SOP14,.25	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G14				Not Qualified			e0
TBB206	Infineon Technologies		INDUSTRIAL	14	DIP	RECTANGULAR	NO	PLASTIC/EPOXY	3.5 mA		CMOS	THROUGH-HOLE	5 V	5	IN-LINE	DIP14,.3	PLL or Frequency Synthesis Circuits	2.54 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T14				Not Qualified			e0
TBB200G	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	14	SOP	RECTANGULAR	YES	PLASTIC/EPOXY	3.5 mA	1	CMOS	GULL WING	5 V	5	SMALL OUTLINE	SOP14,.25	PLL or Frequency Synthesis Circuits	1.27 mm	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G14	5.5 V	1.75 mm	4 mm	Not Qualified	3 V	ALSO USES 0 TO 127 AND 3 TO 4095 RATIO	e0			8.75 mm
TBB200	Infineon Technologies	PLL FREQUENCY SYNTHESIZER	INDUSTRIAL	14	DIP	RECTANGULAR	NO	PLASTIC/EPOXY	3.5 mA	1	CMOS	THROUGH-HOLE	5 V	5	IN-LINE	DIP14,.3	PLL or Frequency Synthesis Circuits	2.54 mm	85 Cel	-40 Cel	TIN LEAD	DUAL	R-PDIP-T14	5.5 V	4.2 mm	7.62 mm	Not Qualified	3 V	ALSO USES 0 TO 127 AND 3 TO 4095 RATIO	e0			17.6 mm
PT7V4050TATHA30.720/16.665	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050GATCA22.1184/19.440	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	SON	RECTANGULAR	YES	PLASTIC/EPOXY		1		NO LEAD	5 V		SMALL OUTLINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDSO-N16	5.5 V	4.15 mm	10.16 mm		4.5 V					20.32 mm
PT7V4050TATCA24.704/16.000	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050TATGA38.880/15.360	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050TATCA24.576/20.000	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050TATFA33.330/12.288	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050GATCA34.368/23.7285	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	SON	RECTANGULAR	YES	PLASTIC/EPOXY		1		NO LEAD	5 V		SMALL OUTLINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDSO-N16	5.5 V	4.15 mm	10.16 mm		4.5 V					20.32 mm
PT7V4050TATHA17.920/15.360	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	DIP	RECTANGULAR	NO	PLASTIC/EPOXY		1		THROUGH-HOLE	5 V		IN-LINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDIP-T16	5.5 V	4.58 mm	7.62 mm		4.5 V	SEATED HEIGHT CALCULATED				20.32 mm
PT7V4050GATFA16.777/17.664	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	SON	RECTANGULAR	YES	PLASTIC/EPOXY		1		NO LEAD	5 V		SMALL OUTLINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDSO-N16	5.5 V	4.15 mm	10.16 mm		4.5 V					20.32 mm
PT7V4050GATHA22.1184/20.9715	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	SON	RECTANGULAR	YES	PLASTIC/EPOXY		1		NO LEAD	5 V		SMALL OUTLINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDSO-N16	5.5 V	4.15 mm	10.16 mm		4.5 V					20.32 mm
PT7V4050GATGA27.000/20.000	Diodes Incorporated	PHASE DETECTOR	INDUSTRIAL	16	SON	RECTANGULAR	YES	PLASTIC/EPOXY		1		NO LEAD	5 V		SMALL OUTLINE			2.54 mm	85 Cel	-40 Cel		DUAL	R-PDSO-N16	5.5 V	4.15 mm	10.16 mm		4.5 V					20.32 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.