H30R1602 Transistor Programmable IC Chip Flash Ic Integrated circuit Chip IC Electronics

HIGH FREQUENCY SECONDARY RECTIFIER

Output Features:

■ Designed for high frequency applications.

■ Hyperfast recovery competes with GaAs devices.

■ Allows size decrease of snubbers and heatsinks.

Key Specifications:

• CPU/SRC outputs cycle-cycle jitter < 125ps

• 3V66 outputs cycle-cycle jitter < 250ps

• PCI outputs cycle-cycle jitter < 250ps

• CPU - AGP skew < +/- 350ps

• AGP-PCI skew between 1~3.5ns

Features/Benefits:

• Programmable output frequency.

• Programmable asynchronous 3V66&PCI frequency.

• Programmable output divider ratios.

• Programmable output skew.

• Programmable spread percentage for EMI control.

• Watchdog timer technology to reset system if system malfunctions.

• Programmable watch dog safe frequency.

• Support I2C Index read/write and block read/write operations.

• Uses external 14.318MHz reference input

Absolute Maximum Ratings

Core Operating Voltage . . . . . . . . . . . . . . . . . . . 4.6 V I/O

Operating Voltage . . . . . . . . . . . . . . . . . . . . . 3.6V

Lo gic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND –0.5 V to VDD + 0.5 V

Ambient Operating Temperature . . . . . . . . . . . . 0°C to +70°C

Storage Temperature . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Case Temperature . . . . . . . . . . . . . . . . . . . . . . . . 115°C

ICS952906A is a 48 pin clock chip for VIA VN800/CN700/P4M800 style chipsets. When used with a fanout DDR buffer, such as the 93788, it provides all the necessary clock signals for such a system. The ICS952906A is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub). This part incorporates ICS's newest clock technology which offers more robust features and functionality. Employing the use of a serially programmable I2 C interface, this device can adjust the output clocks by configuring the frequency setting, the output divider ratios, selecting the ideal spread percentage, the output skew, the output strength, and enabling/disabling each individual output clock. M/N control can configure output frequency with resolution up to 0.1MHz increment.

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