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NJW1504/1508
PLL Synthesizer with I2C Bus for TV Tuner
n DESCRIPTION The NJW1504/1508 are a PLL frequency synthesizer especially
designed for TV and VCR tuning systems and consists of PLL circuit and a prescaler which operates up to 1.0GHz, built into one chip.
The NJW1504/1508 are controlled through an I2C-bus.
n FEATURES
• Operating Voltage 5V • Low Operating Current : 15mA typ. @Vcc=5V
• Prescaler accepts frequencies up to 1GHz on chip • Reference Signal :
NJW1504: Reference Signal Oscillator with peripheral of Xtal on chip NJW1508: Buffer Amplifier for External Reference Signal on chip
• 34V max.