Contact Us:00852-30501886 Email:sales@allicdata.com
Sitemap How to buy Login / Register
USD
USA EN
Cart(0)
Products Manufacturers Authorized Agent Send RFQ Blog（news） About us
Home> Products>

Search Result:60 hz square wave crystal oscillator

 --170 Item(s) In Category:Image Sensors, Camera

Related Categories

Connectors, Interconnects
Rectangular Connectors - Heade...
Rectangular Connectors - Heade...
Card Edge Connectors - Edgeboa...
D-Sub Connectors
Terminal Blocks - Headers, Plu...
FFC, FPC (Flat Flexible) Conne...
Circular Connectors - Housings
Terminals - PC Pin Receptacles...
Rectangular Connectors - Array...
Backplane Connectors - Special...
Rectangular Connectors - Board...
Terminal Blocks - Wire to Boar...
Sockets for ICs, Transistors
Terminals - PC Pin, Single Pos...
Rectangular Connectors - Free ...
Circular Connectors - Accessor...
Power Entry Connectors - Inlet...
Rectangular Connectors - Heade...
Blade Type Power Connectors
Modular Connectors - Jacks
Coaxial Connectors (RF)
Crystals, Oscillators, Resonator...
Oscillators
Crystals
Programmable Oscillators
Pin Configurable/Selectable Os...
VCOs (Voltage Controlled Oscil...
Fans, Thermal Management
Thermal - Heat Sinks
DC Fans
Thermal - Pads, Sheets
AC Fans
Integrated Circuits (ICs)
Embedded - Microcontrollers
Clock/Timing - Programmable Ti...
Clock/Timing - Clock Generator...
Embedded - FPGAs (Field Progra...
Clock/Timing - Application Spe...
Clock/Timing - Real Time Clock...
Memory
Interface - UARTs (Universal A...
Interface - Voice Record and P...
Embedded - Microprocessors
Interface - Analog Switches, M...
PMIC - Voltage Regulators - DC...
PMIC - Power Distribution Swit...
Embedded - System On Chip (SoC...
Clock/Timing - Clock Buffers, ...
Linear - Amplifiers - Instrume...
Optoelectronics
LED Lighting - COBs, Engines, ...
LEDs - Circuit Board Indicator...
LED Indication - Discrete
Panel Indicators, Pilot Lights
Optics - Lenses
LED Lighting - White
Switches
Pushbutton Switches
Rotary Switches
Tactile Switches
Accessories - Caps
Snap Action, Limit Switches
Toggle Switches
Potentiometers, Variable Resisto...
Trimmer Potentiometers
Joystick Potentiometers
Inductors, Coils, Chokes
Fixed Inductors
Tapes, Adhesives, Materials
Tape
Motors, Solenoids, Driver Boards...
Motors - AC, DC
Stepper Motors
Circuit Protection
Electrical, Specialty Fuses
Fuses
Gas Discharge Tube Arresters (...
Circuit Breakers
TVS - Varistors, MOVs
Power Supplies - Board Mount
DC DC Converters
Cable Assemblies
Rectangular Cable Assemblies
Resistors
Through Hole Resistors
Industrial Controls
Controllers - Process, Tempera...
Panel Meters - Counters, Hour ...
Machine Safety - Light Curtain...
Capacitors
Aluminum Electrolytic Capacito...
Tantalum Capacitors
Tantalum - Polymer Capacitors
Sensors, Transducers
Pressure Sensors, Transducers
Proximity/Occupancy Sensors - ...
Image Sensors, Camera
Discrete Semiconductor Products
Diodes - Bridge Rectifiers
Diodes - Zener - Single
Transistors - Bipolar (BJT) - ...
Transistors - FETs, MOSFETs - ...
Transistors - Bipolar (BJT) - ...
Uncategorized
Miscellaneous
RF/IF and RFID
RFI and EMI - Shielding and Ab...
RF Accessories
RF Evaluation and Development ...
Power Supplies - External/Intern...
AC DC Desktop, Wall Adapters
AC DC Converters
LED Drivers
Cables, Wires
Coaxial Cables (RF)
Filters
Ferrite Beads and Chips
Isolators
Optoisolators - Transistor, Ph...
Audio Products
Alarms, Buzzers, and Sirens
Test and Measurement
Test Leads - Banana, Meter Int...
Development Boards, Kits, Progra...
Evaluation and Demonstration B...
Evaluation Boards - DC/DC &...
Photo Allicdata Part# Mft.Part# Company Spec. QTY. Pricing(USD) PDF
OV02740-GA4A OV02740-GA4A-ND OV02740-GA4A OmniVision Technologies Inc
View more  Series: PureCel
 Packaging: Bulk
 Part Status: Active
 Type: CMOS with Processor
 Pixel Size: 1.4m x 1.4m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 2.8V
 Package / Case: Module
 Supplier Device Package: Module
1000
Order

1024+:

$1.0871

 OV02740-GA4A-ND Datasheet
AR0140AT3C00XUEA0-DRBR1 AR0140AT3C00XUE
A0-DRBR1-ND		 AR0140AT3C00XUE
A0-DRBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
1000
Order

260+:

$9.9618

 AR0140AT3C00XUEA0-DRBR1-ND Datasheet
OVP2200 + OVP0921-A44G OVP2200+OVP0921
-A44G-ND		 OVP2200 + OVP09
21-A44G		 OmniVision Technologies Inc
View more  Part Status: Active
 Type: CMOS with Processor
 Pixel Size: 4.5m x 4.5m
 Active Pixel Array: 1280H x 720V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 3.3V
1000
Order

44+:

$29.1438

 OVP2200+OVP0921-A44G-ND Datasheet
ASX342ATSC00XPED0-DR ASX342ATSC00XPE
D0-DR-ND		 ASX342ATSC00XPE
D0-DR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 5.6m x 5.6m
 Frames per Second: 60
1000
Order

--

 ASX342ATSC00XPED0-DR-ND Datasheet
AR023ZMCSC00SUEA0-DRBR AR023ZMCSC00SUE
A0-DRBR-ND		 AR023ZMCSC00SUE
A0-DRBR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

2400+:

$8.42

 AR023ZMCSC00SUEA0-DRBR-ND Datasheet
ASX342ATSC00XPED0-TP ASX342ATSC00XPE
D0-TP-ND		 ASX342ATSC00XPE
D0-TP		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 5.6m x 5.6m
 Frames per Second: 60
1000
Order

2000+:

$5.3534

 ASX342ATSC00XPED0-TP-ND Datasheet
AR1820HSSC00SHEA0-DP1 AR1820HSSC00SHE
A0-DP1-ND		 AR1820HSSC00SHE
A0-DP1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 1.34m x 1.34m
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

240+:

$36.54

 AR1820HSSC00SHEA0-DP1-ND Datasheet
AR1820HSSC12SHEA0-DP AR1820HSSC12SHE
A0-DP-ND		 AR1820HSSC12SHE
A0-DP		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 1.34m x 1.34m
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

2400+:

$26.8526

 AR1820HSSC12SHEA0-DP-ND Datasheet
ASX342ATSC00XPED0-DP ASX342ATSC00XPE
D0-DP-ND		 ASX342ATSC00XPE
D0-DP		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 5.6m x 5.6m
 Frames per Second: 60
1000
Order

2600+:

$5.1782

 ASX342ATSC00XPED0-DP-ND Datasheet
AR1820HSSC00SHEA0-DR AR1820HSSC00SHE
A0-DR-ND		 AR1820HSSC00SHE
A0-DR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 1.34m x 1.34m
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

2400+:

$26.5715

 AR1820HSSC00SHEA0-DR-ND Datasheet
AR0261CSSC30SMD20 AR0261CSSC30SMD
20-ND		 AR0261CSSC30SMD
20		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 1.4m x 1.4m
 Frames per Second: 60
1000
Order

1+:

$0

 AR0261CSSC30SMD20-ND Datasheet
AR0140AT3C00XUEA0-DPBR1 AR0140AT3C00XUE
A0-DPBR1-ND		 AR0140AT3C00XUE
A0-DPBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
1000
Order

260+:

$10.4011

 AR0140AT3C00XUEA0-DPBR1-ND Datasheet
OVP2200-MAAA-TA OVP2200-MAAA-TA
-ND		 OVP2200-MAAA-TA OmniVision Technologies Inc
View more  Part Status: Active
 Type: CMOS with Processor
 Pixel Size: 4.5m x 4.5m
 Active Pixel Array: 1280H x 720V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 3.3V
1000
Order

38+:

$32.319

 OVP2200-MAAA-TA-ND Datasheet
AR0140AT3C00XUEA0-TPBR AR0140AT3C00XUE
A0-TPBR-ND		 AR0140AT3C00XUE
A0-TPBR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
1000
Order

2000+:

$7.1474

 AR0140AT3C00XUEA0-TPBR-ND Datasheet
AR1820HSSC12SHEA0-DR1 AR1820HSSC12SHE
A0-DR1-ND		 AR1820HSSC12SHE
A0-DR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 1.34m x 1.34m
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

240+:

$36.2659

 AR1820HSSC12SHEA0-DR1-ND Datasheet
OVP2200-W20A-AF OVP2200-W20A-AF
-ND		 OVP2200-W20A-AF OmniVision Technologies Inc
View more  Part Status: Active
 Type: CMOS with Processor
 Pixel Size: 4.5m x 4.5m
 Active Pixel Array: 1280H x 720V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 3.3V
1000
Order

2950+:

$1.26

 OVP2200-W20A-AF-ND Datasheet
ARX550HDSC00XPEA0-DRBR1 ARX550HDSC00XPE
A0-DRBR1-ND		 ARX550HDSC00XPE
A0-DRBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3.75m x 3.75m
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

260+:

$13.5563

 ARX550HDSC00XPEA0-DRBR1-ND Datasheet
AR0330CM1C12SHAA0-DR1 AR0330CM1C12SHA
A0-DR1-ND		 AR0330CM1C12SHA
A0-DR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2304H x 1296V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 70C
1000
Order

152+:

$4.7457

 AR0330CM1C12SHAA0-DR1-ND Datasheet
AR0331SRSC00SHCA0-DRBR1 AR0331SRSC00SHC
A0-DRBR1-ND		 AR0331SRSC00SHC
A0-DRBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2048H x 1536V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 85C
1000
Order

240+:

$14.5152

 AR0331SRSC00SHCA0-DRBR1-ND Datasheet
OV07735-G04A OV07735-G04A-ND OV07735-G04A OmniVision Technologies Inc
View more  Series: OmniPixel3-HS
 Packaging: Bulk
 Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 640H x 480V
 Frames per Second: 60
 Voltage - Supply: 2.8V
 Package / Case: Module
 Supplier Device Package: Module
 Operating Temperature: -30C ~ 70C (TA)
1000
Order

1473+:

$1.0231

 OV07735-G04A-ND Datasheet
MT9V136C12STC-DR1 MT9V136C12STC-D
R1-ND		 MT9V136C12STC-D
R1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 5.6m x 5.6m
 Active Pixel Array: 680H x 512V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 70C
1000
Order

152+:

$7.0484

 MT9V136C12STC-DR1-ND Datasheet
AR0237CSSC12SHRA0-DR AR0237CSSC12SHR
A0-DR-ND		 AR0237CSSC12SHR
A0-DR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 85C
1000
Order

--

 AR0237CSSC12SHRA0-DR-ND Datasheet
ASX350AT3C00XPEA0-DP1 ASX350AT3C00XPE
A0-DP1-ND		 ASX350AT3C00XPE
A0-DP1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3.75m x 3.75m
 Active Pixel Array: 720H x 560V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -40C ~ 105C
1000
Order

416+:

$8.4956

 ASX350AT3C00XPEA0-DP1-ND Datasheet
AR0140AT3C00XUEA0-DPBR2 AR0140AT3C00XUE
A0-DPBR2OS-ND		 AR0140AT3C00XUE
A0-DPBR2		 ON Semiconductor
View more  Series: Automotive, AEC-Q100
 Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
 Package / Case: 63-BGA
 Supplier Device Package: 63-iBGA (9x9)
5
Order

5+:

$17.4623

10+:

$15.7991

25+:

$14.552

50+:

$12.8888

125+:

$12.473

250+:

$12.0573

500+:

$11.6415

 AR0140AT3C00XUEA0-DPBR2OS-ND Datasheet
ASX350AT3C00XPEA0-TP ASX350AT3C00XPE
A0-TP-ND		 ASX350AT3C00XPE
A0-TP		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3.75m x 3.75m
 Active Pixel Array: 720H x 560V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -40C ~ 105C
1000
Order

2000+:

$6.2283

 ASX350AT3C00XPEA0-TP-ND Datasheet
AR0141CS2M00SUEA0-TPBR AR0141CS2M00SUE
A0-TPBR-ND		 AR0141CS2M00SUE
A0-TPBR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
 Voltage - Supply: 1.8 V ~ 2.8 V
 Operating Temperature: -30C ~ 70C
1000
Order

2000+:

$3.5192

 AR0141CS2M00SUEA0-TPBR-ND Datasheet
AR0521SR2M09SURA0-DR AR0521SR2M09SUR
A0-DR-ND		 AR0521SR2M09SUR
A0-DR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2592H x 1944V
 Frames per Second: 60
 Package / Case: 52-LCC
 Supplier Device Package: 52-PLCC (12x12)
1000
Order

1680+:

$5.2268

 AR0521SR2M09SURA0-DR-ND Datasheet
AR0331SRSC00XUEE0-DPBR1 AR0331SRSC00XUE
E0-DPBR1-ND		 AR0331SRSC00XUE
E0-DPBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2048H x 1536V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 85C
1000
Order

240+:

$14.5152

 AR0331SRSC00XUEE0-DPBR1-ND Datasheet
MT9M021IA3XTC-DPBR1 MT9M021IA3XTC-D
PBR1-ND		 MT9M021IA3XTC-D
PBR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3.75m x 3.75m
 Active Pixel Array: 1280H x 960V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 70C
1000
Order

260+:

$20.5729

 MT9M021IA3XTC-DPBR1-ND Datasheet
AR0238CSSC12SPRA0-DR1 AR0238CSSC12SPR
A0-DR1-ND		 AR0238CSSC12SPR
A0-DR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

152+:

$6.1676

 AR0238CSSC12SPRA0-DR1-ND Datasheet
AR0238CSSC12SHRA0-DP1 AR0238CSSC12SHR
A0-DP1-ND		 AR0238CSSC12SHR
A0-DP1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

152+:

$6.5718

 AR0238CSSC12SHRA0-DP1-ND Datasheet
AR0521SR2C09SURA0-DR1 AR0521SR2C09SUR
A0-DR1-ND		 AR0521SR2C09SUR
A0-DR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2592H x 1944V
 Frames per Second: 60
 Supplier Device Package: 52-PLCC
1000
Order

168+:

$8.4057

 AR0521SR2C09SURA0-DR1-ND Datasheet
MT9V024IA7XTR-DR1 MT9V024IA7XTR-D
R1-ND		 MT9V024IA7XTR-D
R1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 6m x 6m
 Active Pixel Array: 752H x 480V
 Frames per Second: 60
 Voltage - Supply: 3V ~ 3.6V
 Operating Temperature: -40C ~ 105C (With Derating)
1000
Order

260+:

$16.485

 MT9V024IA7XTR-DR1-ND Datasheet
AR0238CSSC12SHRA0-DR1 AR0238CSSC12SHR
A0-DR1-ND		 AR0238CSSC12SHR
A0-DR1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1920H x 1080V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
1000
Order

152+:

$6.1676

 AR0238CSSC12SHRA0-DR1-ND Datasheet
AR0521SR2C09SURA0-DP AR0521SR2C09SUR
A0-DP-ND		 AR0521SR2C09SUR
A0-DP		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2592H x 1944V
 Frames per Second: 60
 Package / Case: 52-LCC
 Supplier Device Package: 52-PLCC (12x12)
1000
Order

1680+:

$6.5124

 AR0521SR2C09SURA0-DP-ND Datasheet
OS02A1Q-H92A OS02A1Q-H92A-ND OS02A1Q-H92A OmniVision Technologies Inc
View more  Series: PureCel
 Part Status: Active
 Type: CMOS with Processor
 Pixel Size: 2m x 2m
 Active Pixel Array: 2688H x 1944V
 Frames per Second: 60
 Voltage - Supply: 1.2V
 Package / Case: Module
 Operating Temperature: -30C ~ 85C
1000
Order

400+:

$8.7885

 OS02A1Q-H92A-ND Datasheet
MT9V024IA7XTM-DR1 MT9V024IA7XTM-D
R1-ND		 MT9V024IA7XTM-D
R1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 6m x 6m
 Active Pixel Array: 752H x 480V
 Frames per Second: 60
 Voltage - Supply: 3V ~ 3.6V
 Operating Temperature: -40C ~ 105C (With Derating)
1000
Order

260+:

$14.8371

 MT9V024IA7XTM-DR1-ND Datasheet
MT9P401I12STC-DP1 MT9P401I12STC-D
P1-ND		 MT9P401I12STC-D
P1		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 2.2m x 2.2m
 Active Pixel Array: 2592H x 1944V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -30C ~ 70C
1000
Order

240+:

$16.2918

 MT9P401I12STC-DP1-ND Datasheet
MT9M025IA3XTC-TPBR MT9M025IA3XTC-T
PBR-ND		 MT9M025IA3XTC-T
PBR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3.75m x 3.75m
 Active Pixel Array: 1280H x 960V
 Frames per Second: 60
 Voltage - Supply: 1.8V, 2.8V
 Operating Temperature: -40C ~ 105C
1000
Order

2000+:

$12.2601

 MT9M025IA3XTC-TPBR-ND Datasheet
AR0140AT2C00XUEA0-TPBR AR0140AT2C00XUE
A0-TPBR-ND		 AR0140AT2C00XUE
A0-TPBR		 ON Semiconductor
View more  Part Status: Active
 Type: CMOS
 Pixel Size: 3m x 3m
 Active Pixel Array: 1280H x 800V
 Frames per Second: 60
 Package / Case: 63-LBGA
 Supplier Device Package: 63-iBGA (9x9)
1000
Order

2000+:

$8.379

 AR0140AT2C00XUEA0-TPBR-ND Datasheet
Hot Searches: 60 hz square wave crystal oscillator crystal oscillator square wave quartz crystal oscillator 240 volts 60 hz 5vdc 1hz square wave crystal oscillator 32768 hz crystal oscillator square wave converter ic square wave clock ic crystal oscillator sqyare wave 32768 hz crystal oscillator circuit quartz crystal oscillator 400 hz 1 hz crystal oscillator circuit ltspice crystal oscillator 32768 hz 100k hz crystal oscillator circuit 4 pin crystal oscillator 1 hz oscillator 1.0 hz mems smd crystal 32.0mhz 10pf smd esr 60 osc 500.0 hz th crystal oscillator crystal vs crystal oscillator crystal oscillator crystal current