MB88152A is a clock generator for EMI (Electro Magnetic Interference) reduction. The peak of unnecessary radiation noise (EMI) can be attenuated by making the oscillation frequency slightly modulate periodically with the internal modulator. It corresponds to both of the center spread which modulates input frequency as Middle Centered and down spread which modulates so as not to exceed input frequency.
The MB88152A series is a spread spectrum clock generator designed to reduce EMI by modulating the oscillation frequency. It supports input frequencies from 16.6 MHz to 134 MHz and offers both center‑spread and down‑spread modulation options.
The document lists detailed electrical characteristics, pin functions, recommended PCB layout, and absolute maximum ratings. It also includes handling instructions to avoid latch‑up and ensure reliable operation.
| Input frequency | 16.6 MHz to 134 MHz |
|---|---|
| Output frequency | 16.6 MHz to 134 MHz |
| Modulation rate | +0.5%, +1.5% (center), –1.0%, –3.0% (down) |
| Modulation clock output duty | 40 % to 60 % |
| Modulation clock jitter | < 100 ps |
| Current consumption | 5.0 mA (24 MHz, typ, no load) |
| Power supply voltage | 3.3 V ± 0.3 V |
| Operating temperature | –40 °C to +85 °C |
| Package | SOP 8‑pin |
| Storage temperature | –55 °C to +125 °C |
| Junction temperature | –40 °C to +125 °C |
| Output current | –14 mA to +14 mA |
The device accepts input frequencies from 16.6 MHz to 134 MHz.
A supply of 3.3 V ± 0.3 V is recommended.
The storage temperature can be between –55 °C and +125 °C.
Typical current consumption is 5.0 mA at 24 MHz with no load.