52 Clock Generators 9

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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

LTC6952IUKG#PBF

Analog Devices

CLOCK GENERATOR, PROCESSOR SPECIFIC

AUTOMOTIVE

NO LEAD

52

HVQCCN

RECTANGULAR

PLASTIC/EPOXY

YES

3.45 V

4500 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

3.15 V

125 Cel

-40 Cel

MATTE TIN

QUAD

.8 mm

7 mm

8 mm

CMOS

3.3 V

.5 mm

R-PQCC-N52

500 MHz

e3

LTC6953IUKG#PBF

Analog Devices

CLOCK GENERATOR, PROCESSOR SPECIFIC

AUTOMOTIVE

NO LEAD

52

HVQCCN

RECTANGULAR

PLASTIC/EPOXY

YES

3.45 V

4500 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

3.15 V

125 Cel

-40 Cel

MATTE TIN

QUAD

.8 mm

7 mm

8 mm

CMOS

3.3 V

.5 mm

R-PQCC-N52

4500 MHz

e3

LTC6952IUKG#TRPBF

Analog Devices

CLOCK GENERATOR, PROCESSOR SPECIFIC

AUTOMOTIVE

NO LEAD

52

HVQCCN

RECTANGULAR

PLASTIC/EPOXY

YES

3.45 V

4500 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

3.15 V

125 Cel

-40 Cel

QUAD

.8 mm

7 mm

NOT SPECIFIED

NOT SPECIFIED

8 mm

CMOS

3.3 V

.5 mm

R-PQCC-N52

500 MHz

LTC6953IUKG#TRPBF

Analog Devices

CLOCK GENERATOR, PROCESSOR SPECIFIC

AUTOMOTIVE

NO LEAD

52

HVQCCN

RECTANGULAR

PLASTIC/EPOXY

YES

3.45 V

4500 MHz

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

3.15 V

125 Cel

-40 Cel

QUAD

.8 mm

7 mm

NOT SPECIFIED

NOT SPECIFIED

8 mm

CMOS

3.3 V

.5 mm

R-PQCC-N52

4500 MHz

MPC980FA

Renesas Electronics

CLOCK GENERATOR, PROCESSOR SPECIFIC

COMMERCIAL

GULL WING

52

LQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

66 MHz

FLATPACK, LOW PROFILE

3.135 V

70 Cel

0 Cel

TIN LEAD

QUAD

1.7 mm

10 mm

10 mm

CMOS

3.3 V

.65 mm

S-PQFP-G52

Not Qualified

14.31818 MHz

e0

87972DYI-147LF

Renesas Electronics

CLOCK GENERATOR, PROCESSOR SPECIFIC

INDUSTRIAL

GULL WING

52

LQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

150 MHz

FLATPACK, LOW PROFILE

QFP52,.47SQ

3.135 V

85 Cel

-40 Cel

TIN

QUAD

1.6 mm

10 mm

260

10 mm

CMOS

250 mA

3.3 V

.65 mm

S-PQFP-G52

3

150 MHz

e3

87972DYI-147LFT

Renesas Electronics

CLOCK GENERATOR, PROCESSOR SPECIFIC

INDUSTRIAL

GULL WING

52

LQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

150 MHz

FLATPACK, LOW PROFILE

QFP52,.47SQ

3.135 V

85 Cel

-40 Cel

TIN

QUAD

1.6 mm

10 mm

260

10 mm

CMOS

250 mA

3.3 V

.65 mm

S-PQFP-G52

3

150 MHz

e3

MPC9772AE

Renesas Electronics

CLOCK GENERATOR, OTHER

INDUSTRIAL

GULL WING

52

QFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

230 MHz

3.3

FLATPACK

QFP52,.47SQ

3.135 V

85 Cel

-40 Cel

MATTE TIN

QUAD

1.7 mm

10 mm

30

260

10 mm

CMOS

15 mA

3.3 V

Clock Generators

.65 mm

S-PQFP-G52

3

Not Qualified

250 MHz

e3

LCK4972A

Broadcom

CLOCK GENERATOR, PROCESSOR SPECIFIC

INDUSTRIAL

GULL WING

52

TQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

240 MHz

FLATPACK, THIN PROFILE

3.135 V

85 Cel

-40 Cel

TIN LEAD

QUAD

1.2 mm

10 mm

30

240

10 mm

CMOS

3.3 V

.65 mm

S-PQFP-G52

Not Qualified

25 MHz

e0

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.