Clock Generators, PLLs, Frequency Synthesizers

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ImageProduct DetailPriceAvailabilityECAD ModelMounting TypeOperating TemperaturePackage / CaseVoltage - SupplySupplier Device PackageRatio - Input:OutputNumber of CircuitsSeriesTypePLLInputOutputDifferential - Input:OutputFrequency - MaxDivider/Multiplier
LMX2485ESQ/NOPB
IC PLL FREQ SYNTH 3GHZ 24WQFN
5+
$2.5352
10+
$2.3662
15+
$2.2817
Quantity
77,784 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
24-WFQFN Exposed Pad
2.5V ~ 3.6V
24-WQFN (4x4)
3:2
1
PLLatinum™
Frequency Synthesizer (RF)
Yes
Clock
Clock
Yes/No
3GHz
Yes/Yes
PT7C4511WEX
IC FREQ MULTIPLIER 8SOIC
5+
$0.8451
10+
$0.7887
15+
$0.7606
Quantity
54,790 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C (TA)
8-SOIC (0.154", 3.90mm Width)
3V ~ 5.5V
8-SOIC
1:1
1
-
Clock Multiplier
Yes
Clock, Crystal
Clock, Crystal
No/No
180MHz
No/No
MB15E03SLPFV1-G-ER-6E1
IC SYNTHESIZER PLL 1.2GHZ 16SSOP
5+
$1.6901
10+
$1.5775
15+
$1.5211
Quantity
50,704 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
16-LSSOP (0.173", 4.40mm Width)
2.4V ~ 3.6V
16-SSOP
1:1
1
-
Frequency Synthesizer
Yes
Clock
Clock
No/No
1.2GHz
Yes/No
ZL30252LDF1
IC JITTER ATTENUATOR 3I/O 32QFN
5+
$12.6761
10+
$11.8310
15+
$11.4085
Quantity
47,748 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
32-VFQFN Exposed Pad
1.71V ~ 3.465V
32-QFN (5x5)
4:3
1
-
-
Yes with Bypass
CML, CMOS, Crystal
CML, CMOS
Yes/Yes
1.035GHz
Yes/Yes
NBA3N5573MNTXG
IC CLK GENERATOR DUAL
5+
$7.8169
10+
$7.2958
15+
$7.0352
Quantity
47,221 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount, Wettable Flank
-40°C ~ 105°C (TA)
16-VFQFN Exposed Pad
2.97V ~ 3.63V
16-QFNW (3x3)
1:2
1
Automotive, AEC-Q100
Clock Generator
Yes
LVCMOS, LVTTL, Crystal
HCSL
No/Yes
200MHz
Yes/No
CY2305SXC-1T
IC CLK ZDB 5OUT 133MHZ 8SOIC
5+
$0.4859
10+
$0.4535
15+
$0.4373
Quantity
46,431 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
0°C ~ 70°C
8-SOIC (0.154", 3.90mm Width)
3V ~ 3.6V
8-SOIC
1:5
1
-
Fanout Buffer (Distribution), Zero Delay Buffer
Yes
Clock
Clock
No/No
133.33MHz
No/No
LMX2485SQ/NOPB
IC PLL FREQ SYNTH 3GHZ 24WQFN
5+
$5.0704
10+
$4.7324
15+
$4.5634
Quantity
42,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
24-WFQFN Exposed Pad
2.5V ~ 3.6V
24-WQFN (4x4)
3:2
1
PLLatinum™
Frequency Synthesizer (RF)
Yes
Clock
Clock
Yes/No
3GHz
Yes/Yes
83PR226BKI-01LF
5+
$10.5634
10+
$9.8592
15+
$9.5070
Quantity
37,190 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
10-VQFN Exposed Pad
2.375V ~ 3.465V
10-VFQFPN (5x7)
1:1
1
FemtoClock®
Clock/Frequency Synthesizer
Yes
Crystal
LVPECL
No/Yes
213.33MHz
Yes/No
CY2309SXC-1HT
IC CLK ZDB 9OUT 133MHZ 16SOIC
5+
$1.1620
10+
$1.0845
15+
$1.0458
Quantity
35,045 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
0°C ~ 70°C
16-SOIC (0.154", 3.90mm Width)
3V ~ 3.6V
16-SOIC
1:9
1
-
Fanout Buffer (Distribution), Zero Delay Buffer
Yes with Bypass
LVCMOS, LVTTL
LVCMOS
No/No
133.33MHz
No/No
TLC2933IPWR
IC PHASE-LOCKED LOOP 14-TSSOP
5+
$0.2113
10+
$0.1972
15+
$0.1901
Quantity
34,724 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-20°C ~ 75°C
14-TSSOP (0.173", 4.40mm Width)
2.85V ~ 5.25V
14-TSSOP
2:1
1
-
Phase Lock Loop (PLL)
Yes
CMOS
CMOS
No/No
100MHz
No/No
ADF4112BRUZ-REEL
IC PLL RF FREQ SYNTHESZR 16TSSOP
5+
$1.4789
10+
$1.3803
15+
$1.3310
Quantity
34,388 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
16-TSSOP (0.173", 4.40mm Width)
2.7V ~ 5.5V
16-TSSOP
2:1
1
-
Clock/Frequency Synthesizer (RF)
Yes
CMOS, TTL
Clock
Yes/No
3GHz
Yes/No
CY22393FXCT
IC CLOCK GEN PROG 16-TSSOP
5+
$3.2958
10+
$3.0761
15+
$2.9662
Quantity
32,500 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
0°C ~ 70°C
16-TSSOP (0.173", 4.40mm Width)
3.135V ~ 3.465V
16-TSSOP
1:6
1
-
Clock Generator, Fanout Distribution
Yes with Bypass
LVTTL, Crystal
CMOS
No/No
200MHz
Yes/No
LMX2325TMX-G
ROHS - T/R; PLL FREQ SYNTHESIZER
5+
$7.3944
10+
$6.9014
15+
$6.6549
Quantity
29,045 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-
-
-
-
-
*
-
-
-
-
-
-
-
CY2308ZXI-1HT
IC CLK ZDB 8OUT 133MHZ 16TSSOP
5+
$4.2254
10+
$3.9437
15+
$3.8028
Quantity
26,045 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
16-TSSOP (0.173", 4.40mm Width)
3V ~ 3.6V
16-TSSOP
1:8
1
-
Fanout Buffer (Distribution), Zero Delay Buffer
Yes with Bypass
LVCMOS, LVTTL
LVCMOS
No/No
133.3MHz
No/No
SI51214-A1FAGMR
IC TINY CLOCK 2 LVCMOS OUT 6TDFN
5+
$3.1690
10+
$2.9577
15+
$2.8521
Quantity
24,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-
6-WFDFN
-
6-TDFN (1.2x1.4)
-
-
-
-
-
-
-
-
-
-
LMX2571NJKR
IC SYNTHESIZER W/FSK MOD 36WQFN
5+
$3.1690
10+
$2.9577
15+
$2.8521
Quantity
22,620 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
36-WFQFN Exposed Pad
3.15V ~ 3.45V
36-WQFN (6x6)
2:2
1
PLLatinum™
Frequency Synthesizer (RF)
Yes with Bypass
Clock, Crystal
Clock
Yes/No
1.4GHz
Yes/Yes
CDCVF2505DR
IC 3.3V PLL CLOCK DRVR 8-SOIC
5+
$1.9014
10+
$1.7746
15+
$1.7113
Quantity
21,468 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
8-SOIC (0.154", 3.90mm Width)
3V ~ 3.6V
8-SOIC
1:5
1
-
PLL Clock Driver
Yes with Bypass
LVTTL
LVTTL
No/No
200MHz
No/No
5V49EE902NLGI8
5+
$3.1690
10+
$2.9577
15+
$2.8521
Quantity
20,624 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
32-VFQFN Exposed Pad
3.135V ~ 3.465V
32-VFQFPN (5x5)
2:7
1
VersaClock® III
Clock Generator, Multiplexer
Yes with Bypass
LVCMOS, LVTTL, Crystal
HCSL, LVCMOS, LVDS, LVPECL, LVTTL
No/Yes
500MHz
Yes/Yes
NB4N507ADR2
IC SYNTHESIZER CLK PECL 16-SOIC
5+
$1.7958
10+
$1.6761
15+
$1.6162
Quantity
20,332 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
16-SOIC (0.154", 3.90mm Width)
3V ~ 5.5V
16-SOIC
1:1
1
-
Clock/Frequency Synthesizer
Yes
Clock, Crystal
PECL
No/Yes
200MHz
Yes/Yes
MM74HC4046MTCX
IC PHASE LOCK LOOP CMOS 16-TSSOP
5+
$0.0211
10+
$0.0197
15+
$0.0190
Quantity
20,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Surface Mount
-40°C ~ 85°C
16-TSSOP (0.173", 4.40mm Width)
2V ~ 6V
16-TSSOP
1:2
1
74HC
Phase Lock Loop (PLL)
No
CMOS
3-State
No/No
14MHz
No/No

Clock Generators, PLLs, Frequency Synthesizers

Clock Generators: Clock generators are electronic devices or integrated circuits (ICs) that generate clock signals used to synchronize and control the timing of various components within a digital system. These components include microprocessors, memory devices, communication interfaces, and other integrated circuits. Clock generators typically take an external reference clock as input and produce one or more output clocks with specific frequencies, phases, and duty cycles.

The primary function of a clock generator is to provide stable and accurate clock signals to ensure proper operation and synchronization of the system. Clock generators often incorporate features such as frequency dividers, phase-locked loops (PLLs), and programmable settings to allow flexibility in generating different clock signals for different parts of the system. They may also provide additional features such as spread spectrum clocking (SSC) to reduce electromagnetic interference (EMI) and improve signal integrity.

PLLs (Phase-Locked Loops): PLLs are essential components used in many clock generation and frequency synthesis applications. A PLL is a closed-loop control system that locks the phase and frequency of an output signal to a reference signal. It consists of three main components: a phase comparator, a voltage-controlled oscillator (VCO), and a feedback loop.

The phase comparator compares the phase difference between the input reference signal and the VCO output signal. It generates an error voltage proportional to the phase difference. The VCO, controlled by this error voltage, generates an output signal whose frequency and phase align with the reference signal. The feedback loop continuously adjusts the VCO's control voltage to ensure that the phase and frequency remain locked to the reference signal.

PLLs are widely used for tasks such as clock multiplication, frequency synthesis, clock recovery, and jitter reduction. They enable precise control and generation of clock signals with specific frequencies, allowing for efficient and reliable operation of digital systems.

Frequency Synthesizers: Frequency synthesizers are electronic circuits or ICs used to generate precise and stable output frequencies from a reference frequency or multiple reference frequencies. They typically employ PLLs as the core component to achieve frequency synthesis.

A frequency synthesizer consists of a phase detector, a loop filter, a programmable divider, and a voltage-controlled oscillator (VCO). The phase detector compares the phase of the reference signal with the feedback signal derived from the output signal. The loop filter filters the phase detector's output and generates a control voltage for the VCO. The programmable divider divides the VCO output frequency to create the desired output frequency.

Frequency synthesizers offer the advantage of generating frequencies that are not limited to discrete values. They allow for fine-tuning and precise control of output frequencies, making them valuable in applications such as wireless communication systems, radio receivers, frequency modulation (FM), and frequency hopping spread spectrum (FHSS) systems.

In summary, clock generators, PLLs, and frequency synthesizers are key components in generating and controlling clock signals and frequencies within electronic systems. Clock generators produce synchronized clock signals, PLLs ensure phase-locked and frequency-controlled outputs, while frequency synthesizers offer precise frequency synthesis capabilities. These components contribute to the proper operation, synchronization, and reliable performance of digital systems across various applications.