VSC7982XYE - 11.3 Gb/s 3.3V Laser Driver | Microchip
MPN: VSC7982XYE ✗ Tapus ng BuhayVSC7982XYE Ulas
A laser and modulator driver is an interface IC that converts high-speed digital data into the current-driven electrical signal required by optical transmitters. Within the optical communication hierarchy, the VSC7982XYE combines a data path, modulation output, bias control, and on-chip operational amplifiers to reduce the number of external components needed around a laser or modulator. It therefore sits between the digital transceiver circuitry and the optical transmitter module.
The principal operating characteristics include a maximum data rate of 11.3 Gb/s, a 3.3V power supply, and support for VCSEL, DML, and EML light sources. The family documentation also identifies low-power operation as a key benefit. Integrated on-chip operational amplifiers are intended to provide stable output modulation and output-bias control, helping reduce the discrete component count on the transmitter board.
The VSC7982 family architecture is tailored to high-speed optical links where modulation current must be controlled accurately while the physical implementation remains compact. Low-cost QFP-N packaging supports production layouts where optical modules and line cards require many closely spaced high-speed driver channels. Because this device controls bias and modulation, PCB signal integrity, supply decoupling, return-path continuity, and controlled-impedance routing directly influence achievable data rate and eye quality.
Typical uses include 10.3G and 10G-class optical transceiver modules, VCSEL transmitters, DML transmitters, EML transmitters, telecommunications equipment, and data-communications links. It can also be evaluated for test and measurement systems, instrumentation, and industrial optical-control modules that require a compact high-speed current driver. The device is particularly relevant where a fixed-function laser driver is preferable to a general-purpose amplifier and discrete current-source network.
When laying out a circuit using the VSC7982XYE, place decoupling capacitors close to the supply and ground pins and preserve a continuous return path beneath the high-speed package. Use the manufacturer's reference design and pin-description tables for exact power, ground, bias, modulation, and control connections. Confirm the output-impedance and optical-module requirements of the selected laser before finalizing resistor values and termination arrangements.
This page organizes the verified VSC7982XYE characteristics, purchase and availability guidance, family-level comparisons, application context, and practical design considerations. It also distinguishes documented capabilities from parameters that require confirmation in the manufacturer datasheet, helping engineers move from component selection to a defensible PCB implementation.
Mga alternatibo na pwedeng ilagay na VSC7982XYE — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Wala ng magagamit na drop-in alternatibo para sa produkto na ito.
Hilingin ang AlternatiboVSC7982XYE Mga Spesipikasyon
| Product Type | Laser and modulator driver IC |
| Maximum Data Rate | 11.3 Gb/s |
| Volte ng Pagbibigay | 3.3 V |
| Supported Optical Sources | VCSEL, DML, and EML laser/modulator |
| Application Segment | Telecommunications and data communications |
| Integrated Amplifiers | On-chip operational amplifiers |
| Modulation Control | Output modulation control |
| Bias Control | Output bias-level control |
| Power Characteristics | Low-power 3.3V operation |
| Package Family | QFP-N |
Gabay sa Pin Configuration ng VSC7982XYE qfp-n
Pin configuration para sa VSC7982XYE (qfp-n package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa VSC7982XYE.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
VSC7982XYE ay nararapat para sa 6 aplikasyons: 10G VCSEL Optical Transmitters, Directly Modulated Laser Modules, EML Optical Transmitter Modules, Telecommunications Optical Line Cards, Data Communications Optical Links, Optical Test and Measurement Equipment.
10G VCSEL Optical Transmitters
The VSC7982XYE fits a 10G-class VCSEL transmitter because the VSC7982 family supports data rates up to 11.3 Gb/s and provides dedicated modulation-current and output-bias control. It can sit between the transmit data path and the optical device, using its integrated operational amplifiers to improve current stability and reduce the number of external support components. The 3.3V architecture also aligns with compact optical-module power constraints. Final design signoff requires checking the selected VCSEL's compliance current, modulation-current limit, rise and fall-time requirements, and the driver package's thermal limits.
Directly Modulated Laser Modules
A directly modulated laser module can use the VSC7982XYE when it requires a dedicated high-speed current driver alongside a 3.3V supply. The family's documented 11.3 Gb/s capability provides margin for 10G-class transmitter paths, while output modulation and bias controls support the operating point of the DML. Integrated on-chip operational amplifiers are intended to stabilize the drive network and reduce discrete component count. The implementation still depends on correct bias setting, output-current calculation, impedance-controlled routing, and compliance with the laser supplier's absolute operating limits.
EML Optical Transmitter Modules
The VSC7982XYE is applicable to EML transmitters because the VSC7982 family explicitly supports EML laser and modulator drive functions. Its separate modulation and bias controls allow the transmitter designer to establish the operating point of an electro-absorption modulator while preserving a high-speed data path. Operation from 3.3V supports compact line-card and optical-module architectures. Before schematic release, compare the modulator's voltage range, modulation current, bandwidth, and bias requirements with the manufacturer's electrical characteristics for VSC7982XYE.
Telecommunications Optical Line Cards
The VSC7982XYE can support compact telecommunications line-card transmitter sections that require high-speed laser drive at 3.3V. The QFP-N packaging is intended to conserve board area, which is valuable when multiple optical channels or adjacent digital circuitry occupy a small module footprint. Its integrated operational amplifiers and bias-control architecture may reduce the number of external components compared with a discrete implementation. High-speed implementation still demands short return paths, local supply decoupling, controlled-impedance traces, and thermal review of the package under sustained data traffic.
Data Communications Optical Links
For data-communications links, the VSC7982XYE is suited to transmitter boards using VCSEL, DML, or EML sources at rates within the family's 11.3 Gb/s capability. A fixed-function driver simplifies the analog drive stage around a 10G-class optical device and provides coordinated modulation and bias control from a 3.3V rail. The design remains sensitive to trace discontinuities and supply impedance, so component placement should minimize loop area and maintain an uninterrupted ground reference beneath the high-speed QFP-N footprint.
Optical Test and Measurement Equipment
The VSC7982XYE can be evaluated in laboratory and production test systems that generate controlled modulation current for optical-source characterization. Its documented low-power 3.3V operation, output modulation control, and output-bias control support repeatable stimulus generation for VCSEL, DML, and EML devices. The same high-speed considerations apply as in production transceivers: short connections, low-inductance decoupling, controlled-impedance routing, and careful thermal analysis. The manufacturer pin and electrical tables should define the allowable waveform, current range, and test-fixture loading.
Impormasyon ng Talumpati sa Engineering for VSC7982XYE — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto |
|---|---|
| Brand | Microchip Technology |
| Package | QFP-N |
| Product Type | Laser and modulator driver IC |
| Maximum Data Rate | 11.3 Gb/s |
| Supply Voltage | 3.3 V |
| Supported Optical Sources | VCSEL, DML, and EML laser/modulator |
| Integrated Amplifiers | On-chip operational amplifiers |
| Control Functions | Output modulation and output-bias control |
| Target Markets | Telecommunications and data communications |
Pangunahing mga Pagkakaiba
- High-speed dedicated optical-driver function (kumpara saGeneral-purpose high-speed amplifier)
- Integrated modulation and bias stabilization (kumpara saDiscrete current-driver implementation)
- Low-voltage optical-transmitter integration (kumpara saHigher-voltage laser-driver architecture)
Talaan ng Disenyo
Place the 3.3V decoupling network immediately adjacent to the VSC7982XYE supply and ground connections, and keep the high-speed modulation path as short as practical. Maintain a continuous ground reference beneath the QFP-N package to reduce return-path discontinuities. Use the manufacturer's layout in the VSC7982 datasheet as the starting point rather than routing the signal according to a generic interface-IC pattern.
Treat the modulation and bias paths as controlled-impedance RF connections. Avoid stubs, abrupt reference-plane changes, and long connections between the driver and laser or EML device. Confirm the target impedance, launch geometry, and connector or bond-wire transition with the system signal-integrity budget. These controls are necessary because the family supports rates up to 11.3 Gb/s, where interconnect loss and reflections can degrade eye opening.
Do not assume that every member of the VSC7980, VSC7981, and VSC7982 family is pin-compatible. Verify the exact ordering code, package lead count, pin assignments, speed rating, modulation-current limit, and bias-control configuration before substitution. Also avoid applying a DC bias level intended for a DML to an EML or VCSEL; establish the operating point from the optical-device datasheet and the driver electrical limits.
Impormasyon ng Pagsunod sa Kautusan
Compliance status is not stated in the cited component pages and must be confirmed from Microchip Technology's current product documentation or material-declaration records.
