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Renesas 8N3SV75AC-0126CDI
- Part No.:
- 8N3SV75AC-0126CDI
- Manufacturer:
- Renesas
- Category:
- Programmable Timers and Oscillators
- Package:
- 6-CLCC
- Datasheet:
-
8N3SV75AC-0126CDI.pdf
- Description:
- IC OSC VCXO 19.2MHZ 6-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,337
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Product details
Overview
8N3SV75AC-0126CDI from Renesas Electronics is a factory-programmed LVPECL voltage-controlled crystal oscillator (VCXO) with fourth-generation FemtoClock® NG PLL synthesis, supporting output frequencies from 15.476 MHz to 866.67 MHz and 975 MHz to 1,300 MHz, ±218 Hz frequency resolution, 0.5 ps RMS phase jitter at 156.25 MHz (12 kHz–20 MHz), and operation across –40°C to +85°C for wireless infrastructure timing.
For engineers reviewing the 8N3SV75AC-0126CDI datasheet, 8N3SV75AC-0126CDI pinout, 8N3SV75AC-0126CDI application, or 8N3SV75AC-0126CDI equivalent, key selection considerations include its dual-band programmable VCXO architecture, LVPECL differential output compliance, factory-set pull range and control polarity, 2.5V/3.3V supply flexibility, and OE-enabled high-impedance state for system-level clock gating.
Technical Context
The 8N3SV75AC-0126CDI integrates a 114.285 MHz third-overtone crystal oscillator with a fractional-N PLL featuring a 7-bit integer plus 18-bit fractional feedback divider (MINT/MFRAC), 2-bit pre-divider (P), and 7-bit post-divider (N), enabling precise frequency synthesis across two disjoint bands. Its FemtoClock® NG VCO operates at 1950–2600 MHz before division.
Control is implemented via analog VC input (0–VCC, 10%–90% tuning range) with programmable oscillator gain (7.57–477.27 ppm/V at 3.3 V), linearity within ±0.1% BSL, and 100 kHz modulation bandwidth; OE input provides LVCMOS/LVTTL-compatible output enable/disable with internal pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 15.476–866.67 MHz and 975–1300 MHz - supports telecom baseband, Ethernet PHY, and RF sampling clocks |
| Frequency Resolution | ≤218 Hz - enables exact alignment with SONET/SDH, OTU, and CPRI reference rates |
| RMS Phase Jitter | 0.5 ps typical @ 156.25 MHz (12 kHz–20 MHz) - meets OC-192 and 10G Ethernet jitter budgets |
| Supply Voltage | 2.5 V ±5% or 3.3 V ±5% - compatible with mixed-voltage FPGA and ASIC power domains |
| Operating Temperature | –40°C to +85°C - qualified for industrial and outdoor wireless infrastructure deployment |
| Aging (10-year) | ±3 ppm - ensures long-term stability in carrier-grade timing applications without recalibration |
| Output Interface | LVPECL differential pair (Q/nQ) - requires 50 Ω termination to VCC – 2 V for signal integrity |
Pinout & Package
6-lead ceramic VFQFN package, 5 mm × 7 mm × 1.55 mm, RoHS 6-compliant, with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VC | VCXO control voltage input | Analog tuning port; 0–VCC range sets output frequency deviation per programmed APR; impedance 500 kΩ |
| 2 - OE | Output enable input | LVCMOS/LVTTL-compatible; logic high enables Q/nQ outputs, low places them in high-Z state |
| 3 - VEE | Negative power supply | Ground reference for LVPECL outputs; must be connected to system ground |
| 4 - Q | Differential clock output (+) | LVPECL logic high = VCC – 0.8 V to VCC – 1.4 V; swing 0.4–1.0 Vpp into 50 Ω |
| 5 - nQ | Differential clock output (–) | Complementary to Q; 45–55% duty cycle; rise/fall time 80–500 ps (20–80%) |
| 6 - VCC | Positive power supply | Accepts 2.5 V or 3.3 V ±5%; supplies core and output drivers; decoupling critical for jitter performance |
Key Features
| Feature | Design Value |
|---|---|
| Fractional-N PLL with delta-sigma modulator | Enables sub-Hz frequency resolution and low in-band phase noise without requiring external loop filters |
| Factory-programmable APR and VC polarity | Eliminates need for external DAC or polarity inversion circuitry in timing subsystem design |
| Two discrete output frequency bands | Supports both legacy telecom rates (e.g., 155.52 MHz) and modern high-speed interfaces (e.g., 1000BASE-X, CPRI 3.08 Gbps) |
| OE-controlled high-impedance outputs | Allows dynamic clock tree shutdown during low-power modes without affecting upstream PLL lock |
| Low-jitter 114.285 MHz crystal reference | Minimizes multiplication-induced phase noise; enables robust jitter transfer function in daisy-chained timing architectures |
Applications
| Wireless Base Station Timing | Optical Transport Network (OTN) |
|---|---|
Use Scenario: Synchronizing RF transceivers and digital front-end FPGAs in 4G/LTE and 5G massive MIMO base stations. IC Role / Device Role / Timing Role: Primary VCXO providing frequency-agile, low-jitter clock to ADC/DAC sampling engines and JESD204B SerDes. Use Value: 0.5 ps RMS jitter at 156.25 MHz ensures <0.5 LSB noise floor degradation in 16-bit RF data converters. | Use Scenario: Generating synchronous line-rate clocks for OTU2/OTU3 framer ICs and FEC processors in DWDM line cards. IC Role / Device Role / Timing Role: Programmable reference source for ITU-T G.709-compliant timing recovery and multiplexing. Use Value: ±218 Hz resolution enables exact derivation of 10.709 Gbps and 43.018 Gbps OTU frame rates from single device. |
| 10G/25G Ethernet PHY Clocking | CPRI and eCPRI Radio Links |
Use Scenario: Driving 10GBASE-R and 25GBASE-R PCS/PMA layers in switch/router line cards and NICs. IC Role / Device Role / Timing Role: Low-phase-noise clock generator meeting IEEE 802.3ae/802.3by jitter masks for XAUI and SFI-S. Use Value: –145 dBc/Hz phase noise at 10 MHz offset satisfies stringent 10G Ethernet spectral purity requirements. | Use Scenario: Providing deterministic, low-jitter sample clocks for remote radio head (RRH) digitization in fronthaul networks. IC Role / Device Role / Timing Role: VCXO referenced by CPRI/eCPRI timing master to maintain <±50 ns timestamp accuracy over fiber links. Use Value: Factory-programmed APR and temperature-stable ±20 ppm option (K-code) ensure tight holdover performance during GPS outage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCXO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si510-PROG | LVDS output, 10–945 MHz range, 1.8–3.3 V supply, integrated EEPROM for field reprogramming | Lacks factory-set APR and VC polarity; requires external configuration interface | Preferred when field frequency updates or multi-configuration storage are required |
| AK20E-156.250 | Fixed-frequency 156.25 MHz LVPECL XO, ±20 ppm stability, no VC input or pull range | No voltage control capability; limited to single-rate applications | Suitable only for static clocking where VCXO agility is unnecessary |
Compared with Si510-PROG and AK20E-156.250, the 8N3SV75AC-0126CDI uniquely delivers factory-optimized VCXO behavior-programmed APR, polarity, and dual-band frequency support-in a drop-in LVPECL package, eliminating configuration overhead while guaranteeing telecom-grade stability and jitter.
Availability
8N3SV75AC-0126CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport, and high-speed Ethernet applications requiring stable component supply, long-lifecycle availability, and guaranteed factory programming traceability.
Supply support for 8N3SV75AC-0126CDI 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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and timing solutions for automotive, industrial, and communications markets.
The IDT8N3SV75 family was designed specifically for high-performance, frequency-programmable timing in carrier-grade wireless and optical networking equipment, emphasizing low phase noise, wide pull range, and extended temperature reliability.
FAQ
What output frequency is pre-programmed in the 8N3SV75AC-0126CDI?
The 8N3SV75AC-0126CDI is factory-programmed to a default frequency of 156.25 MHz, matching common Ethernet and OTN reference clock requirements. This value is permanently stored in on-chip ROM and cannot be altered in the field. The part number suffix "0126" corresponds to this specific frequency and associated VCXO pull-range configuration per Renesas' ordering documentation.
Does the 8N3SV75AC-0126CDI support both 2.5 V and 3.3 V supply voltages simultaneously?
No, the 8N3SV75AC-0126CDI operates from a single supply voltage-either 2.5 V ±5% or 3.3 V ±5%, selected at factory programming and fixed for the life of the device. The "A" in the order code indicates 3.3 V operation. Supply voltage is not user-selectable; incorrect voltage may cause functional failure or damage.
How is the VCXO pull range configured in the 8N3SV75AC-0126CDI?
The absolute pull range (APR) of the 8N3SV75AC-0126CDI is factory-programmed and fixed; for this variant, it is set to ±50 ppm, consistent with the "E" option code. The APR defines the total frequency deviation achievable across the full VC tuning range (0–VCC) and is stored in configuration registers during manufacturing.
Can the 8N3SV75AC-0126CDI be used without connecting the VEE pin?
No, the VEE pin (Pin 3) must be connected to system ground. It serves as the reference return path for the LVPECL output stage and internal bias circuits. Leaving VEE unconnected will prevent proper output driver operation, result in undefined logic levels, and likely violate absolute maximum ratings for internal node voltages.
What is the startup time specification for the 8N3SV75AC-0126CDI after power application?
The 8N3SV75AC-0126CDI requires a maximum of 10 ms to achieve stable oscillation and valid output after VCC reaches regulation. This parameter includes crystal start-up, PLL lock acquisition, and output buffer stabilization. System designs must ensure OE remains low until tSTARTUP completes to avoid metastable clock edges.
8N3SV75AC-0126CDI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- FemtoClock® NG
- Package/Case:
- 6-CLCC
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- VCXO
- Count:
- -
- Frequency:
- 19.2MHz
- Voltage - Supply:
- 3.135V ~ 3.465V
- Current - Supply:
- 130 mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-CLCC (7x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
8N3SV75AC-0126CDI FAQ
1.How can I place an order for 8N3SV75AC-0126CDI through Aetrix?
Please submit a Request for Quotation (RFQ) for 8N3SV75AC-0126CDI 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 8N3SV75AC-0126CDI reliable?
The price and inventory of 8N3SV75AC-0126CDI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8N3SV75AC-0126CDI is usually 5 days.
3.What payment methods are accepted for 8N3SV75AC-0126CDI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8N3SV75AC-0126CDI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8N3SV75AC-0126CDI?
8N3SV75AC-0126CDI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8N3SV75AC-0126CDI 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 8N3SV75AC-0126CDI?
For technical support, including 8N3SV75AC-0126CDI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8N3SV75AC-0126CDI requirements.
6.How does Aetrix verify that 8N3SV75AC-0126CDI is sourced from the original manufacturer or authorized distributors?
All 8N3SV75AC-0126CDI 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 8N3SV75AC-0126CDI meets industry standards.
7.What is the process for return or replacement of 8N3SV75AC-0126CDI?
All 8N3SV75AC-0126CDI units undergo pre-shipment inspection (PSI). If there is an issue with 8N3SV75AC-0126CDI, 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 8N3SV75AC-0126CDI part is unused and in its original packaging.
Return procedure for 8N3SV75AC-0126CDI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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