Low Power Wideband Fractional
RF Synthesizer / PLL
8V97051
Datasheet
General Description
Features
The 8V97051 is a high performance Wideband RF Synthesizer / PLL
optimized for use as the local oscillator (LO) in Multi-Carrier,
Multi-mode FDD & TDD Base Station radio card. It is offered in a
compact 5x5, 32-VFQFN package.
• Dual Differential Outputs
• Output frequency range: 34.375MHz to 4400MHz (continuous
range)
• RF Output Divide by 1, 2, 4, 8, 16, 32, 64
The 8V97051 Wideband RF Synthesizer / PLL offers a default
Fractional Mode with the option to use it with an Integer mode. It
requires an external loop filter.
• Open Drain Outputs (see Output Distribution Section)
• Fractional-N synthesizer (also supports Integer-N mode)
• 16-bit integer and 12-bit fractional
(16-bit fractional when using the extended registers)
The 8V97051 with integrated Voltage Controlled Oscillator (VCO)
supports output frequencies from 34.375MHz to 4400MHz and
maintains superior phase noise and spurious performance.
• 3- or 4-wire SPI interface (compatible with 3.3V and 1.8V)
• Single 3.3V supply
RF_OUT[A:B] output drivers have independently programmable
output power ranging from –4dBm to +7dBm. The RF_OUT outputs
can be muted. The mute function is accessible via a SPI command
or mute pin.
• Logic compatibility: 1.8V
• Programmable output power level: -4dBm to +5dBm
(up to +7 when using the extended registers)
The operation of the 8V97051 is controlled by writing to registers
through a 3-wire SPI interface. The 8V97051 also has an additional
option that allows users to read back values from registers by
configuring the MUX_OUT pin as a SDO for the SPI interface. The
SPI interface is compatible with 1.8V logic and tolerant to 3.3V.
• Mute Function
• Ultra low PN for 1.1GHz LO: -143dBc/Hz @ 1MHz Offset, (typical)
• Lock Detect Indicators
• Input Reference frequency: 5MHz to 310MHz
• Power Consumption: 380mW (typical) (RF_OUTB disabled)
• 32-Lead, 5x5 VFQFN package
In multi-service base stations, very low noise oscillators are required
to generate a large variety of frequencies to the mixers while
maintaining excellent phase noise performance and low power. The
8V97051 offers a large tuning range capable of providing multi-band
local oscillator (LO) frequency synthesis in multi-mode base stations,
thus limiting the use of multiple narrow band RF Synthesizers and
reducing the BOM complexity and cost. The device can operate over
-40°C to +85°C industrial temperature range.
• Automatic VCO band selection (Autocal feature)
• -40°C to +85°C ambient operating temperature
• Supports case temperature 105°C operations
• Lead-free (RoHS 6) packaging
Applications
• Wireless Infrastructure
• Test Equipment
• CATV Equipment
• Military and Aerospace
• Wireless LAN
• Clock Generation
©2016 Integrated Device Technology, Inc.
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Revision 4, September 22, 2016