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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Features

  • Dual differential outputs
  • Output frequency range: 34.375MHz to 4400MHz (continuous range)
  • RF output divided by 1, 2, 4, 8, 16, 32, 64
  • Open drain outputs
  • Fractional-N synthesizer (also supports Integer-N mode)
  • 16-bit Integer and 12-bit fractional (16-bit fractional when using the extended registers)
  • 3- or 4-wire SPI interface (compatible with 3.3V and 1.8V)
  • Single 3.3V supply
  • Logic compatibility: 1.8V
  • Integrated high-performance low dropout regulators (LDOs) for excellent power supply noise rejection
  • Programmable output power level: -4dBm to +7dBm
  • Mute function
  • Ultra-low PN for 1.1GHz LO: -143dBc/Hz at 1MHz offset (typical)
  • Lock detect indicators
  • Input reference frequency: 5MHz to 310MHz
  • Power consumption: 380mW (typical) (RF_OUTB disabled)
  • 5mm × 5mm 32-VFQFN package
  • Automatic VCO band selection (Autocal feature)
  • -40 °C to +85 °C ambient operating temperature
  • Supports case temperature ≤ 105 °C operations
  • Supported by the Timing Commander software tool

Description

The 8V97051L 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 cards. This device is offered in a compact 5mm × 5mm 32-VFQFN package.

The 8V97051L 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 8V97051L 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 an SPI command or mute pin.

Renesas’ RF Synthesizer family also includes the 8V97053L wideband RF synthesizer/PLL with integrated VCO that offers enhanced phase noise specifications geared to GSM and Band 42 radio card applications.

Parameters

AttributesValue
Output Freq Range (MHz)34.375 - 4400
Power Consumption Typ (mW)380
Supply Voltage (V)3.3 - 3.3
Package Area (mm²)25
Battery BackupNo
Battery SealNo
CPU Supervisory Function PORNo
Crystal Frequency TrimmingNo
Frequency Out PinNo
Inputs (#)1
Input Freq (MHz)5 - 310
Synthesis ModeInteger, Fractional
105°C Max. Case Temp.1
FunctionWideband RF synthesizer w/integrated VCO
GradeGSM900
Output Power Range (dBm)-4 - 7
Product CategoryRF Synthesizer, Ultra-Low Jitter Clocks (<300 fs RMS)

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN5.0 x 5.0 x 0.9320.5

Applications

  • Wireless infrastructure
  • Test equipment
  • CATV equipment
  • Military and aerospace
  • Wireless LAN
  • Clock generation

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