The ICS342 is a low cost, dual-output, field programmable clock synthesizer.
The ICS342 is a dual‑output, field‑programmable VersaClock synthesizer that can generate frequencies from 250 kHz to 200 MHz using two independently configurable PLLs. It supports spread‑spectrum modulation to reduce EMI and includes a power‑down pin that tri‑states the outputs.
The datasheet provides pin assignments, electrical characteristics, package dimensions, thermal data, and ordering information for the 8‑pin SOIC version. It also describes configuration capabilities, VersaClock software usage, and recommended PCB layout guidelines.
| Output frequency range | 250 kHz – 200 MHz |
|---|---|
| Input crystal frequency range | 5 MHz – 27 MHz |
| Input clock frequency range | 2 MHz – 50 MHz |
| Operating voltage | 3.3 V (typical 3.15 V – 3.45 V) |
| Package type | 8‑pin SOIC |
| Supply current (33.33 MHz output) | 13 mA |
| Ambient operating temperature | -40 °C to +85 °C |
| Spread spectrum range (center) | ±0.125 % to ±2.0 % |
| Spread spectrum range (down) | -0.25 % to -4.0 % |
It can generate two output frequencies from 250 kHz up to 200 MHz.
The device offers center spread (±0.125 % to ±2.0 %) or down spread (‑0.25 % to ‑4.0 %) with modulation rates of 30‑33 kHz or 120 kHz.
The recommended supply voltage is 3.3 V (typical 3.15 V–3.45 V) and the supply current is about 13 mA at a 33.33 MHz output.
The part is offered in an 8‑pin SOIC package with variants such as ICS342MP, ICS342MIP, and ICS342MLF (lead‑free).