342MIP General Description
FIELD PROGRAMMABLE DUAL O
The ICS342 is a low-cost, dual-output, VersaClock? supported, field programmable clock synthesizer. The ICS342 can generate an two output frequencies from 250 kHz to 200 MHz, using up to two independently configurable PLLs. The outputs may employ Spread Spectrum techniques to reduce system electro-magnetic interference (EMI).
Using IDT VersaClock software to configure the PLL and output, the ICS342 contains a One-Time Programmable (OTP) ROM to allow field programmability. Programming features include two selectable configuration registers. The device employs Phase-Locked Loop (PLL) techniques to run from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost.
The device also has a power-down feature that tri-states the clock outputs and turns off the PLLs when the PDTS pin is taken low.
The ICS342 is also available in factory programmed custom versions for high-volume applications.
8-pin SOIC package Highly accurate frequency generation M/N Multiplier PLL: M = 1...2048, N = 1...1024 Output clock frequencies up to 200 MHz Two ROM locations for frequency and spread selection Spread spectrum capability for lower system EMI Center or Down spread up to 4% total Selectable 32 kHz or 120 kHz modulation Input crystal frequency of 5 to 27 MHz Input clock frequencies from 2 to 50 MHz Operating voltage of 3.3 V Advanced, low-power CMOS process For one output clock, use the ICS341. For three output clocks, see the ICS343. For more than three outputs, see the ICS345 or ICS348 Available in Pb (lead) free package
click here for VersaClock Software page342MIP Maximum Ratings
| Input Frequency | 5 MHz to 50 MHz |
| No. of Inputs | 1 |
| Temperature | I |
| Output Frequency | 250 kHz to 200 MHz |
| Input Type | Clock,Crystal |
| No. of Outputs | 2 |
| Output Type | LVCMOS |
| Voltage | 5.0 V |
| Package | SOIC 8 |
| Speed | NA |
| Spread Type | Down,Center |
| Core Supply Voltage (VDD) | 3.3 V |
| Output Supply Voltage (VDDO) | 3.3 V |
| Peak-to-Peak Period Jitter | ± 200 ps Pk-to-Pk |
| Spread Spectrum | Yes |
| VCXO | No |
| Output Style | SE |
| Input Style | Crystal |
| Max. Output Frequency | 200 MHz |
| Min. Output Frequency | 0.25 MHz |
| Max. Input Frequency | 50 MHz |
| Min. Input Frequency | 2 MHz |
| Temp. Grade | C |
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