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MK1574 Datasheet, PDF (1/6 Pages) Integrated Circuit Systems – Frame Rate Communications PLL | |||
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I CR O C LOC K
MK1574
Frame Rate Communications PLL
Description
The MK1574-01 is a Phase-Locked Loop (PLL)
based clock synthesizer, which accepts an 8 kHz
clock input as a reference, and generates many
popular communications frequencies. All outputs
are frequency locked together and to the input.
This allows for the generation of locked clocks to
the 8 kHz backplane clock, simplifying clock
generation and distribution in communications
systems.
MicroClock can customize this device for any
other different frequencies.
Features
⢠Packaged in 16 pin narrow (150 mil) SOIC
⢠Exact multiplications stored in the device eliminate
the need for external dividers
⢠Accepts 8 kHz input clock
⢠Output clock rates include T1, E1, T2, E2
⢠3.0V to 5.5V operation
⢠Available in commercial (0 to +70 C) or industrial
(-40 to +85 C) temperature ranges
⢠For jitter attenuation, use the MK2049
Block Diagram
VDD GND
22
4
FS0-3
8kHz
Input Clock
Input
Buffer
PLL
Clock
Synthesis
and
Control
Circuitry
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
CAP1
CAP2
CLK1
CLK2
CLK3
8kHz
(recovered)
MDS 1574-01 D
1
Revision 011999
Printed 11/15/00
MicroClock Division of ICS ⢠525 Race Street ⢠San Jose ⢠CA ⢠95126â¢(408)295-9800telâ¢(408)295-9818fax
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