SP5070
SP5070 is 2.GHz Fixed Modulus Frequency Synthesiser manufactured by Mitel Networks.
2.GHz Fixed Modulus Frequency Synthesiser
DS3966-2.2 May 996
The SP5070 is a single modulus frequency synthesiser for use in Satellite TV receivers and together with an appropriate voltage controlled oscillator (VCO), forms a plete phase locked loop (PLL) synthesiser. The circuit consists of a prescaler with preamplifier and a fixed modulus divider. The phase parator is fed with a reference frequency derived from an external oscillator or crystal. The parator has a charge pump output amplifier stage around which feedback may be applied. Only an external transistor is required for varicap line driving.
VCC RF INPUT RF INPUT NC NC VEE DRIVE OUTPUT
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