Description

The 8V97053 is a high-performance Wideband RF Synthesizer /

PLL optimized for use as the local oscillator (LO) in Multi-Carrier,

Multi-mode FDD, and TDD Base Station radio card. It is offered in

a compact 5  5, 32-VFQFPN.

The 8V97053 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.

The 8V97053 with integrated Voltage Controlled Oscillator (VCO)

supports output frequencies from 34.375MHz to 4400MHz, and

maintains superior phase noise and spurious performance.

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.

The operation of the 8V97053 is controlled by writing to registers

through a 3-wire SPI interface. The 8V97053 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 is tolerant to 3.3V.

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 8V97053 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.

Features

▪ Dual Differential Outputs

▪ Output frequency range: 34.375MHz to 4400MHz (continuous

range)

▪ RF Output Divide by 1, 2, 4, 8, 16, 32, 64

▪ Open Drain Outputs (see Output Clock Distribution)

▪ Fractional-N synthesizer (also supports Integer-N mode)

▪ 16-bit integer and 12-bit fractional

(16-bit fractional when using the register 7)

▪ 3- or 4-wire SPI interface (compatible with 3.3V and 1.8V)

▪ Single 3.3V supply

▪ Logic compatibility: 1.8V

▪ Programmable output power level: -4dBm to +5dBm

(up to +7 when using register 6)

▪ Mute function

▪ Ultra low PN for 1.65GHz LO: -142.08dBc/Hz at 1MHz Offset,

(typical)

▪ Lock Detect Indicators

▪ Input reference frequency: 5MHz to 310MHz

▪ Automatic VCO band selection (Autocal feature)

▪ -40°C to +85°C ambient operating temperature

▪ Supports case temperature ≤ 105°C operations

▪ Lead-free (RoHS 6), 32-VFQFPN, 5  5 mm package