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Renesas RC31008BQ00GL2#BD0
- Part No.:
- RC31008BQ00GL2#BD0
- Manufacturer:
- Renesas
- Package:
- 40-FLGA Exposed Pad
- Datasheet:
-
RC31008BQ00GL2#BD0.pdf
- Description:
- IC JITTER ATTEN
- Quantity:
- Payment:
- Shipping:
Inventory:2,694
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Product details
Overview
RC31008BQ00GL2#BD0 from Renesas Electronics is a high-performance programmable jitter attenuator with integrated crystal and network synchronization capabilities. It delivers 169fs RMS phase jitter at 156.25MHz, supports JEDEC JESD204B/C for converter sync, and complies with ITU-T G.8262/G.8262.1 for SyncE equipment clocks. It drives clock distribution in 10–400Gbps Ethernet PHYs and 5G small cell baseband units.
For engineers reviewing the RC31008BQ00GL2#BD0 datasheet, RC31008BQ00GL2#BD0 pinout, RC31008BQ00GL2#BD0 application, or RC31008BQ00GL2#BD0 equivalent, key selection criteria include its 8 differential/16 single-ended LVDS/LP-HCSL/LVCMOS outputs, programmable DPLL loop bandwidth (0.1Hz–12kHz), integrated crystal option, and dual-interface serial control (I²C/SPI).
Technical Context
The RC31008BQ00GL2#BD0 integrates a dual-loop architecture: a digitally controlled analog PLL (APLL) for low-noise frequency synthesis and a digital PLL (DPLL) for network-based timing recovery and holdover. It supports hitless reference switching between up to four clock inputs-including crystal/TCXO/OCXO-and implements automatic reference selection per ITU-T G.8262.1 eEEC requirements.
Its output stage includes banked voltage domains (VDDO0–VDDO5), enabling independent 1.8V/2.5V/3.3V operation per output group, and supports DC- or AC-coupled LVPECL/CML interfacing. Configuration is stored in factory-programmed OTP memory holding up to four full or 27 partial configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RMS Phase Jitter (156.25MHz) | 169fs typical - meets stringent jitter budget for 100G+ Ethernet PHY reference clocks |
| PCIe Gen7 Common Clock Jitter | 8fs RMS typical - satisfies PCIe Gen7 reference clock specification for switch ASICs |
| Jitter Attenuation Loop BW | Programmable 0.1Hz to 12kHz - enables precise noise filtering for SyncE and T-TSC applications |
| Output Types | LVDS / LP-HCSL / LVCMOS - supports direct interface to FPGA transceivers, SerDes, and PHYs without level-shifting |
| Input Support | Up to 4 single-ended/differential clocks + 1 crystal/TCXO/OCXO - provides redundancy and protocol flexibility in telecom infrastructure |
| Serial Interface | 400kHz I²C/SMBus or 20MHz SPI - enables fast configuration during boot and runtime reprogramming |
| Operating Temp Range | −40°C to +85°C - qualified for industrial and telecom equipment deployment environments |
Pinout & Package
RC31008BQ00GL2#BD0 is housed in a 5 × 5 mm, 40-pin QFN package with exposed thermal pad (VFQFPN). The "Q" suffix denotes integrated crystal option, eliminating external XTAL components and reducing board area and BOM count.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN_REFIN / XOUT_REFINb | Crystal input / oscillator reference pair | Accepts fundamental-mode crystals (10–54MHz) or differential reference clocks; internal termination eliminates external biasing |
| CLKIN0_GPI0 / CLKIN0b_GPI1 CLKIN1_GPI2 / CLKIN1b_GPI3 | Differential clock inputs / GPIOs | Four configurable inputs support LVDS/LP-HCSL/LVCMOS; GPI mode allows status monitoring or control signaling |
| OUT0–OUT7 (differential pairs) | Primary clock outputs | Eight differential output pairs (16 pins) support LVDS/LP-HCSL; each bank has dedicated VDDO supply for voltage flexibility |
| SCL_SCLK / SDA_nCS | I²C/SPI interface | 3.3V-tolerant dual-mode serial bus - enables configuration via industry-standard protocols without level shifters |
| GPIO0–GPIO4 | General-purpose I/O | Five 3-level logic pins usable for power-up state control, lock indication, or system reset coordination |
Key Features
| Feature | Design Value |
|---|---|
| Integrated crystal oscillator | Eliminates external crystal and load capacitors, reducing layout complexity and improving startup reliability in space-constrained 5G small cells |
| ITU-T G.8262.1 eEEC compliance | Validated for use as Equipment Clock in synchronous Ethernet networks, meeting wander and jitter transfer requirements |
| Hitless reference switching | Enables seamless failover between primary and backup timing sources without clock interruption in telecom slave clocks |
| Programmable output termination | On-die 100Ω and 85Ω LP-HCSL terminations reduce signal integrity risk and eliminate external resistors on high-speed outputs |
| OTP configuration storage | Holds up to four complete configurations - supports multi-mode operation (e.g., SyncE + JESD204B) without host processor intervention |
Applications
| 5G Small Cell Baseband Unit | Synchronous Ethernet Switch |
|---|---|
Use Scenario: Timing distribution across FPGA, ADC/DAC, and RFIC in compact 5G NR remote radio units. IC Role / Device Role / Timing Role: Jitter-attenuated master clock generator synchronizing JESD204B lanes and local oscillators. Use Value: 169fs jitter ensures <1% bit error rate in 200–400Gbps data converters; integrated crystal reduces PCB footprint by >30%. | Use Scenario: Providing traceable, wander-controlled clock signals to line cards and packet processors in metro aggregation switches. IC Role / Device Role / Timing Role: Telecom Time Slave Clock (T-TSC) implementing G.8262.1 eEEC compliance with holdover stability. Use Value: DPLL holdover maintains ±0.01ppm accuracy for >24 hours after reference loss - critical for PTP boundary clock resilience. |
| High-Speed Data Center PHY | Wire-Line Infrastructure Router |
Use Scenario: Driving reference clocks for 100G/400G Ethernet PHYs (e.g., QSFP-DD, OSFP) in top-of-rack switches. IC Role / Device Role / Timing Role: Low-jitter fanout buffer with PCIe Gen7-compliant additive jitter performance. Use Value: 8fs RMS PCIe jitter meets Gen7 spec marginally - enables reliable link training and BER <1e−12 at 64 GT/s. | Use Scenario: Clock conditioning and distribution across multiple ASICs (switch fabric, FEC, MAC) in carrier-grade routers. IC Role / Device Role / Timing Role: Multi-protocol jitter attenuator supporting both SyncE and JESD204B simultaneously. Use Value: Dual APLL+DPLL architecture allows independent optimization of frequency synthesis (low phase noise) and network timing (low wander). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar jitter attenuator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5341-B-GM | 12-output, 4-input, no integrated crystal; requires external XO; higher max output frequency (750MHz) | Better suited for ultra-wideband test equipment; lacks G.8262.1 certification out-of-box | Select when >200MHz outputs or multi-band RF synthesis are required; verify SyncE compliance via firmware calibration |
| LMK04832RHAT | 14-output, dual-DPLL, supports JESD204B but not SyncE; no integrated crystal; 3.3V-only core | Optimized for radar and instrumentation; limited telecom timing feature set | Prefer for mixed-signal test systems needing ultra-low additive jitter (<5fs); not suitable for eEEC-certified deployments |
Compared with Si5341-B-GM and LMK04832RHAT, RC31008BQ00GL2#BD0 uniquely combines integrated crystal, G.8262.1 eEEC certification, and JESD204B/C support in a single 40-pin QFN-reducing design validation effort for 5G and SyncE infrastructure.
Availability
RC31008BQ00GL2#BD0 is available at Aetrix Electronics and suitable for 5G small cell baseband units, synchronous Ethernet switches, and high-speed data center PHYs requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for RC31008BQ00GL2#BD0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and communications markets.
The RC310xxB family targets high-reliability wire-line and wireless infrastructure, delivering programmable jitter attenuation with network synchronization for 5G, SyncE, and JESD204B applications.
FAQ
What is the primary function of the RC31008BQ00GL2#BD0 in telecom infrastructure?
The RC31008BQ00GL2#BD0 serves as a programmable jitter attenuator and network timing engine. In telecom infrastructure, it functions as a Telecom Time Slave Clock (T-TSC), providing G.8262.1 eEEC-compliant timing for synchronous Ethernet equipment while supporting hitless reference switching and holdover operation. Its integrated crystal simplifies deployment in space-constrained 5G small cells.
Does the RC31008BQ00GL2#BD0 support both JESD204B and JESD204C standards?
Yes, the RC31008BQ00GL2#BD0 explicitly supports both JEDEC JESD204B and JESD204C standards for converter synchronization. This capability is confirmed in the official datasheet (R31DS0179EU0124, Rev.1.24, Page 1), where it states "support JEDEC JESD204B/C for converter synchronization." It enables direct clock distribution to high-speed ADCs/DACs in 5G and test equipment.
What output voltage levels does the RC31008BQ00GL2#BD0 support for its clock drivers?
The RC31008BQ00GL2#BD0 supports 1.8V, 2.5V, and 3.3V output supply voltages across its six independent output banks (VDDO0–VDDO5). Each bank powers specific output pairs and can be set independently, allowing mixed-voltage clock distribution-for example, LVDS at 2.5V to an FPGA and LVCMOS at 1.8V to a processor subsystem-without external level shifters.
How many configurations can be stored in the RC31008BQ00GL2#BD0's OTP memory?
The RC31008BQ00GL2#BD0's factory-programmed One-Time Programmable (OTP) memory holds up to four complete configurations or 27 partial configurations. This enables flexible multi-mode operation-such as separate SyncE and JESD204B profiles-and allows rapid switching between timing schemes without host CPU involvement, enhancing system robustness in field-deployed infrastructure.
Is the RC31008BQ00GL2#BD0 pin-compatible with other members of the RC310xxB family?
No, the RC31008BQ00GL2#BD0 is not pin-compatible with RC31012B or RC31005B variants. It uses a 40-pin QFN package, whereas RC31012B uses 48-pin QFN and RC31005B uses 32-pin LGA. Pin assignments differ significantly across variants-e.g., RC31008BQ has dedicated GPIO4 and fewer output banks-so PCB layout is not interchangeable. Always refer to the specific variant's pinout (Section 1.7–1.8 in R31DS0179EU0124).
RC31008BQ00GL2#BD0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- VersaClock® 7
- Package/Case:
- 40-FLGA Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- Jitter Attenuator
- PLL:
- Yes
- Input:
- CML, HCSL, LVCMOS, LVDS, LVPECL, Crystal
- Output:
- LP-HCSL, LVCMOS, LVDS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 3:8
- Differential - Input:Output:
- Yes/Yes
- Frequency - Max:
- 200MHz, 650MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 40-LGA (5x5)
RC31008BQ00GL2#BD0 FAQ
1.How can I place an order for RC31008BQ00GL2#BD0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RC31008BQ00GL2#BD0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RC31008BQ00GL2#BD0 reliable?
The price and inventory of RC31008BQ00GL2#BD0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RC31008BQ00GL2#BD0 is usually 5 days.
3.What payment methods are accepted for RC31008BQ00GL2#BD0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RC31008BQ00GL2#BD0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RC31008BQ00GL2#BD0?
RC31008BQ00GL2#BD0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RC31008BQ00GL2#BD0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RC31008BQ00GL2#BD0?
For technical support, including RC31008BQ00GL2#BD0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RC31008BQ00GL2#BD0 requirements.
6.How does Aetrix verify that RC31008BQ00GL2#BD0 is sourced from the original manufacturer or authorized distributors?
All RC31008BQ00GL2#BD0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RC31008BQ00GL2#BD0 meets industry standards.
7.What is the process for return or replacement of RC31008BQ00GL2#BD0?
All RC31008BQ00GL2#BD0 units undergo pre-shipment inspection (PSI). If there is an issue with RC31008BQ00GL2#BD0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RC31008BQ00GL2#BD0 part is unused and in its original packaging.
Return procedure for RC31008BQ00GL2#BD0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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