Skip to main content
FemtoClock 3 Wireless 2-Channel Ultra-Low Phase Noise Synchronizer and Jitter Attenuator with 8 Outputs

Package Information

Lead Count (#) 64
Pkg. Type CABGA
Pkg. Code BJG64
Pitch (mm) 0.8
Pkg. Dimensions (mm) 7.0 x 7.0 x 1.09

Environmental & Export Classifications

Pb (Lead) Free Yes
ECCN (US)
HTS (US)
Moisture Sensitivity Level (MSL) 3

Product Attributes

Pkg. Type CABGA
Lead Count (#) 64
Carrier Type Reel
Qty. per Reel (#) 3000
Qty. per Carrier (#) 0
Pb (Lead) Free Yes
Pb Free Category e1 SnAgCu
Temp. Range -40 to 85°C
Core Voltage (V) 1.8, 3.3
Input Freq (MHz) 0.0000005 - 1000
Input Type CML, Crystal, HCSL, LVCMOS, LVDS, LVPECL
Inputs (#) 4
Length (mm) 7.0
Longevity 2040 Apr
MOQ 3000
Moisture Sensitivity Level (MSL) 3
Output Banks (#) 8
Output Freq Range (MHz) 0.0000005 - 1000
Output Type HCSL, LVCMOS, LVDS
Output Voltage (V) 1.8
Outputs (#) 8
Phase Jitter Max RMS (ps) 0.05
Phase Jitter Typ RMS (ps) 0.018
Pitch (mm) 0.8
Pkg. Dimensions (mm) 7.0 x 7.0 x 1.09
Published No
Reel Size (in) 13
Tape & Reel Yes
Thickness (mm) 1.09
Width (mm) 7.0
Wireless 1

Description

The RC38208 is a high-performance, small form factor, low-power jitter attenuator, multi-frequency clock synthesizer, and digitally controlled oscillator (DCO) designed for critical applications such as 4G/5G RF transceivers and high-speed SerDes. It belongs to Renesas' high-performance FemtoClock™ 3 wireless family. It generates clocks with ultra-low in-band phase noise and spurious signals, achieving jitter below 18fs RMS, making it ideal for 112Gbps and 224Gbps SerDes. The RC38208 can manage up to three synchronization domains, supporting CPRI/eCPRI and synchronization methods like IEEE 1588, Synchronous Ethernet (SyncE), GPI, or GNSS. With up to four frequency domains, it simplifies system clock generation, while integrated LDOs provide superior PSRR, reducing PCB complexity. This makes it an excellent choice for applications such as timing for optical front-end DAC/ADC and DSP, reference clocks for high-speed SerDes, 5G distribution units, and high-performance DCO for PTP-based clocks.