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SP5054 Datasheet 2.6ghz 3-wire Bus Controlled Synthesiser

Manufacturer: Mitel Networks

Overview: SP5054 2.6GHz 3-Wire BUS Controlled Synthesiser DS3048 - 3.4 May 1996 The SP5054 is a single-chip frequency synthesiser designed for satellite TV tuning systems. It is a programming variant of the SP5055, allowing the design of one tuner with either I2C bus or 3-wire bus format, depending on which device is inserted. The SP5054, when used with a satellite varactor tuner, forms a plete phase locked loop tuning system. The circuit consists of a divide-by-16 prescaler with its own preamplifier and a 14/15-bit programmable divider controlled by a serially-loaded data register. Four independently programmable open-collector outputs are included. The device has four modes of operation, selected by the Mode Select input; these modes are summarised in Table1. The parison frequencies are obtained by the division of the output of a 4MHz crystal controlled on-chip oscillator. The phase parator has a charge pump output with an output amplifier stage around which feedback may be applied. Only one external transistor is required for varactor line driving.

Key Features

  • s Complete 2.
  • 6GHz Single Chip System s 62.
  • 5kHz, 100kHz and 125kHz Step Size s Low Power Consumption (325mW Typ. ) s Programming Compatible with Toshiba TD6380, TD6381 and TD6382.
  • s Pin Compatible with SP5055.
  • s Low Radiation s Varactor Drive Amplifier Disable s Charge Pump Disable s Single Port 18/19 Bit Serial Data Entry s Four Controllable Outputs s ESD Protection †.
  • See notes on pin compatibility † Normal ESD handling precautions should be observed Fig. 1 Pin connectio.

More Datasheets from Mitel Networks

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SP5512 1.3GHz Bidirectional I2C BUS Controlled Synthesiser
SP5611 13GHz Bidirectional I2C Bus Controlled Synthesiser
SP5655 27GHz Bidirectional I2C Bus Controlled Synthesiser
SP5658 2.7GHz 3-Wire Bus Controlled Frequency Synthesiser
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SP5054 Distributor