MK141T56S00/22, MK1420, MK1420S Selling Leads, Datasheet
MFG:ST Package Cooled:SOP8 D/C:98
MK141T56S00/22, MK1420, MK1420S Datasheet download
Part Number: MK141T56S00/22
MFG: ST
Package Cooled: SOP8
D/C: 98
MK141T56S00/22, MK1420, MK1420S
- Table of contents:
Info of MK141T56S00/22
Info of MK1420
Info of MK1420S
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About MK1410
PDF/DataSheet Download
Datasheet: MK1410
File Size: 64932 KB
Manufacturer: ICST [Integrated Circuit Systems]
Download : Click here to Download
About MK1420S
PDF/DataSheet Download
Datasheet: MK1420S
File Size: 29909 KB
Manufacturer: ICST [Integrated Circuit Systems]
Download : Click here to Download
About MK1420S
PDF/DataSheet Download
Datasheet: MK1420S
File Size: 29909 KB
Manufacturer: ICST [Integrated Circuit Systems]
Download : Click here to Download
MK1420 General Description
The MK1418 and MK1420 are the ideal way to generate clocks for new sound cards. The MK1420 provides clocks for Analog Devices' AD1848, Crystal Semiconductor's CS4231, and Yamaha's OPL3L, OPL3LS, and OPL4. The MK1420 uses either a 14.318 MHz crystal, or a 14.318 MHz bus clock input to synthesize the clocks required to drive the codec, and the 33.868 MHz required for the FM or wavetable music synthesizer. The chips are ideal for add-in sound cards and motherboards with integrated sound. In an 8 pin SOIC, the MK1420 can save component count, board space, and cost over surface mount crystals, and increase reliability by eliminating three or four mechanical devices from the board.
MicroClock offers many other parts with stereo codec support. The MK1430 has 5 output clocks, the MK1448 has 7, the MK1444 has eight including DSP clocks, and the MK1450/1 offers Pentium™ and SCSI support, plus the stereo codec clocks.
MK1420 Maximum Ratings
|
Parameter |
Conditions |
Minimum |
Typical |
Maximum |
Units |
| Supply Voltage, VDD | Referenced to GND |
7 |
V | ||
| Inputs | Referenced to GND |
-0.5 |
VDD+.5V |
V | |
| Clock Outputs | Referenced to GND |
-0.5 |
VDD+.5V |
V | |
| Ambient Operating Temperature |
0 |
70 |
|||
| Soldering Temperature | Max of 20 seconds |
260 |
|||
| Storage temperature |
-65 |
150 |
MK1420 Features
• Packaged in 8 pin SOIC
• Input crystal or clock frequency of 14.318 MHz
• MK1418 is clock input only
• MK1420 output clock frequencies of 16.934MHz, 24.576 MHz, 33.868 MHz, and 14.318 MHz
• Advanced, low power CMOS process
• Lowest jitter in industry for best audio performance
• Insensitive to input clock duty cycle
• 50% (typ) 14.318 MHz duty cycle with crystal
• Input crystal or clock frequency of 14.318 MHz
• MK1418 is clock input only
• MK1420 output clock frequencies of 16.934MHz, 24.576 MHz, 33.868 MHz, and 14.318 MHz
• Advanced, low power CMOS process
• Lowest jitter in industry for best audio performance
• Insensitive to input clock duty cycle
• 50% (typ) 14.318 MHz duty cycle with crystal
MK1420 Typical Application
For applications in portable computers, it is possible to drive the input clock with a 3.3V, 14.318MHz
clock by a.c. coupling using a 0.01F capacitor connected in series to the CLKIN pin. But the operating VDD on pin 2 must be 5V±10%. This technique is also effective if the input clock doesn't meet the VIH and VIL specifications on page 3.
MK1420 Connection Diagram
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