20 Clock Generators 39

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Part RoHS Manufacturer Peripheral IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Surface Mount Maximum Supply Voltage Screening Level Address Bus Width Maximum Output Clock Frequency DAC Channels Power Supplies (V) Package Style (Meter) Package Equivalence Code Minimum Supply Voltage Maximum Operating Temperature Minimum Operating Temperature Terminal Finish ADC Channels Terminal Position DMA Channels Maximum Seated Height Width Additional Features External Data Bus Width Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length Total Dose (V) Technology Maximum Supply Current Nominal Supply Voltage PWM Channels Sub-Category ROM Programmability Terminal Pitch JESD-30 Code Moisture Sensitivity Level (MSL) Qualification Speed Nominal Primary Clock/Crystal Frequency JESD-609 Code No. of I/O Lines

NB3N853531EDTG

Onsemi

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.465 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3.135 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

3.3 V

.65 mm

R-PDSO-G20

1

266 MHz

e4

CY2291SXL-329T

Cypress Semiconductor

CLOCK GENERATOR, PROCESSOR SPECIFIC

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

80 MHz

SMALL OUTLINE

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

2.667 mm

7.5 mm

12.826 mm

CMOS

3.3 V

1.27 mm

R-PDSO-G20

3

30 MHz

e4

NB3N51034DTG

Onsemi

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.465 V

200 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3.135 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

25 MHz

e4

BUF08821AIPWPR

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

20 V

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

9 V

95 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

IT ALSO REQUIRES 2 TO 5.5V DIGITAL SUPPLY

30

260

6.5 mm

CMOS

7 mA

18 V

.65 mm

R-PDSO-G20

2

Not Qualified

3.4 MHz

e4

CDCE706PWG4

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

300 MHz

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

.65 mm

R-PDSO-G20

1

Not Qualified

200 MHz

e4

CDCE706PWRG4

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

300 MHz

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

.65 mm

R-PDSO-G20

1

Not Qualified

200 MHz

e4

CDCE706PWR

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

300 MHz

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

.65 mm

R-PDSO-G20

1

Not Qualified

200 MHz

e4

CDCE906PWG4

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

167 MHz

2.5/3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP14,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

167 MHz

e4

PLL1705DBQG4

Texas Instruments

CLOCK GENERATOR, VIDEO

OTHER

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

36.864 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27 MHz

e4

CDC706PWG4

Texas Instruments

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3 V

85 Cel

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

1.2 mm

4.4 mm

NOT SPECIFIED

260

6.5 mm

BICMOS

115 mA

3.3 V

.65 mm

R-PDSO-G20

1

Not Qualified

8 MHz

e4

CDC706PWR

Texas Instruments

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

.65 mm

R-PDSO-G20

1

Not Qualified

8 MHz

e4

CDC906PWG4

Texas Instruments

CLOCK GENERATOR, OTHER

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

54 MHz

e4

CDC906PWRG4

Texas Instruments

CLOCK GENERATOR, OTHER

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

54 MHz

e4

CDC906PWR

Texas Instruments

CLOCK GENERATOR, OTHER

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

54 MHz

e4

CDC906PW

Texas Instruments

CLOCK GENERATOR, OTHER

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

54 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

54 MHz

e4

CDCDLP223PWR

Texas Instruments

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

300 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

20 MHz

e4

NB3H83905CMNG

Onsemi

CLOCK GENERATOR, OTHER

INDUSTRIAL

NO LEAD

20

HVQCCN

SQUARE

UNSPECIFIED

YES

3.465 V

CHIP CARRIER

3.135 V

85 Cel

-40 Cel

MATTE TIN

QUAD

1 mm

4 mm

4 mm

CMOS

3.3 V

.5 mm

S-XQCC-N20

Not Qualified

100 MHz

e3

CDCDLP223PWG4

Texas Instruments

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

400 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

20 MHz

e4

CDCDLP223PWRG4

Texas Instruments

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

300 MHz

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

20 MHz

e4

CDCE937PWG4

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1.9 V

230 MHz

1.8

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

1.7 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

1.8 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

32 MHz

e4

CDCE937PWRG4

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1.9 V

230 MHz

1.8

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

1.7 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

CMOS

1.8 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

32 MHz

e4

CY2291FX

Cypress Semiconductor

CLOCK GENERATOR, PROCESSOR SPECIFIC

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

90 MHz

3.3/5

SMALL OUTLINE

SOP20,.4

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

2.667 mm

7.5 mm

ALSO OPERATES AT 5V SUPPLY

20

260

12.826 mm

CMOS

100 mA

3.3 V

Clock Generators

1.27 mm

R-PDSO-G20

3

Not Qualified

30 MHz

e4

CDCEL937PWRG4

Texas Instruments

CLOCK GENERATOR, VIDEO

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1.9 V

230 MHz

1.8

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

1.7 V

85 Cel

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

1.2 mm

4.4 mm

NOT SPECIFIED

260

6.5 mm

CMOS

1.8 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

32 MHz

e4

PLL1705DBQ

Texas Instruments

CLOCK GENERATOR, VIDEO

OTHER

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

36.864 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27 MHz

e4

PLL1706DBQR

Texas Instruments

CLOCK GENERATOR, VIDEO

OTHER

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

.096 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27 MHz

e4

PLL1706DBQ

Texas Instruments

CLOCK GENERATOR, VIDEO

OTHER

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

.096 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27 MHz

e4

PLL1707DBQR

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL EXTENDED

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

36.684 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27.27 MHz

e4

PLL1707DBQ

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL EXTENDED

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

36.684 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27.27 MHz

e4

PLL1708DBQ

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL EXTENDED

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

.096 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27.27 MHz

e4

CDCE906PW

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

167 MHz

2.5/3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP14,.25

3 V

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

1.2 mm

4.4 mm

30

260

6.5 mm

BICMOS

115 mA

3.3 V

Clock Generators

.65 mm

R-PDSO-G20

1

Not Qualified

167 MHz

e4

PLL1708DBQRG4

Texas Instruments

CLOCK GENERATOR, VIDEO

COMMERCIAL EXTENDED

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

3.6 V

.096 MHz

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

2.7 V

85 Cel

-25 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

30

260

8.65 mm

CMOS

25 mA

3.3 V

Clock Generators

.635 mm

R-PDSO-G20

1

Not Qualified

27.27 MHz

e4

DSC400-1111Q0090KI1

Microchip Technology

CLOCK GENERATOR, OTHER

NO LEAD

20

HVQCCN

RECTANGULAR

UNSPECIFIED

YES

3.6 V

AEC-Q100

460 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.12X.2,20

2.25 V

85 Cel

-40 Cel

QUAD

.9 mm

3.2 mm

REPLACED EXTERNAL CLOCK/CRYSTAL AS MEMS INTERNAL CLOCK

5 mm

CMOS

44 mA

3.3 V

.5 mm

R-XQCC-N20

DSC400-3331Q0098KE1T

Microchip Technology

CLOCK GENERATOR, OTHER

NO LEAD

20

HVQCCN

RECTANGULAR

UNSPECIFIED

YES

3.6 V

AEC-Q100

460 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.12X.2,20

2.25 V

70 Cel

-20 Cel

QUAD

.9 mm

3.2 mm

REPLACED EXTERNAL CLOCK/CRYSTAL AS MEMS INTERNAL CLOCK

5 mm

CMOS

44 mA

3.3 V

.5 mm

R-XQCC-N20

DSC400-3331Q0098KI2

Microchip Technology

CLOCK GENERATOR, OTHER

NO LEAD

20

HVQCCN

RECTANGULAR

UNSPECIFIED

YES

3.6 V

AEC-Q100

460 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.12X.2,20

2.25 V

85 Cel

-40 Cel

QUAD

.9 mm

3.2 mm

REPLACED EXTERNAL CLOCK/CRYSTAL AS MEMS INTERNAL CLOCK

5 mm

CMOS

44 mA

3.3 V

.5 mm

R-XQCC-N20

SI5351C-B05341-GM

Silicon Labs

CLOCK GENERATOR, PROCESSOR SPECIFIC

NO LEAD

20

HVQCCN

SQUARE

UNSPECIFIED

YES

2.75 V

200 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.16SQ,20

2.25 V

85 Cel

-40 Cel

QUAD

.9 mm

4 mm

ALSO OPERATES WITH 3.3V SUPPLY

4 mm

CMOS

45 mA

2.5 V

.5 mm

S-XQCC-N20

27 MHz

DSC557-054444KI1

Microchip Technology

CLOCK GENERATOR, PROCESSOR SPECIFIC

INDUSTRIAL

NO LEAD

20

HVQCCN

RECTANGULAR

UNSPECIFIED

YES

3.6 V

460 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.12X.2,20

2.25 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

QUAD

.9 mm

3.2 mm

MEMS CLOCK GENERATORS AS EXT CLOCK; PCIe Generation 1, 2, 3

40

260

5 mm

CMOS

46 mA

3.3 V

.5 mm

R-XQCC-N20

1

e4

DSC400-1111Q0133KI1T

Microchip Technology

CLOCK GENERATOR, PROCESSOR SPECIFIC

NO LEAD

20

HVQCCN

RECTANGULAR

YES

3.6 V

AEC-Q100; MIL-STD-883

170 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.12X.2,20

2.25 V

85 Cel

-40 Cel

QUAD

.9 mm

3.2 mm

5 mm

CMOS

44 mA

3.3 V

.5 mm

R-XQCC-N20

5V49EE501-063NLGI

Renesas Electronics

CLOCK GENERATOR, OTHER

NO LEAD

20

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

3.465 V

500 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.16SQ,20

3.135 V

85 Cel

-40 Cel

TIN

QUAD

1 mm

4 mm

30

260

4 mm

CMOS

3.3 V

.5 mm

S-PQCC-N20

1

200 MHz

e3

DSC400-0111Q0026KE2T

Microchip Technology

CLOCK GENERATOR, OTHER

NO LEAD

20

HVQCCN

RECTANGULAR

UNSPECIFIED

YES

3.6 V

AEC-Q100

460 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.13X.2,20

2.25 V

70 Cel

-20 Cel

QUAD

.9 mm

3.2 mm

5 mm

CMOS

44 mA

3.3 V

.5 mm

R-XQCC-N20

Clock Generators

A clock generator is an electronic circuit that generates an electrical signal that serves as a timing reference for other circuits in a system. Clock generators are used in many electronic devices, such as computers, cell phones, and digital cameras. The clock signal is used to synchronize the operation of different components in the system, such as microprocessors, memory devices, and input/output interfaces.

Clock generators can be classified based on their output frequency and stability. Some clock generators produce a fixed frequency output, while others have a programmable output frequency. The stability of the clock signal is also an important parameter, and clock generators can be designed to produce a stable frequency output over a wide range of temperature and voltage conditions.

Clock generators can also include additional features such as frequency multiplication, frequency division, and phase locking. Frequency multiplication allows the output frequency to be multiplied by an integer value, while frequency division allows the output frequency to be divided by an integer value. Phase locking is used to ensure that the output frequency of the clock generator is synchronized with an external reference signal.