VSC7982XYE - 11.3 Gb/s 3.3V Laser Driver | Microchip
MPN: VSC7982XYE ✗ Akhir HayatVSC7982XYE Ringkasan
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.
Pilihan pengganti yang segera untuk VSC7982XYE — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Tiada pilihan pengganti yang segera untuk produk ini.
Minta AlternatifVSC7982XYE Spesifikasi
| Product Type | Laser and modulator driver IC |
| Maximum Data Rate | 11.3 Gb/s |
| Tegangan Pemberi Arus | 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 |
Panduan Konfigurasi Pin VSC7982XYE qfp-n
Konfigurasi pin untuk VSC7982XYE (qfp-n pakai). Penomeran pin, fungsi, dan garis bentuk koneksi ditakrifkan dalam dokumen pengeluar. Rujuk dokumen untuk kebentuk dan pedoman pengasman.
Tiada data garisan pin yang diperoleh untuk VSC7982XYE.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
VSC7982XYE patut untuk 6 aplikasis: 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.
Data referensi kejuruteraan untuk VSC7982XYE — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini |
|---|---|
| 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 |
Penyeberangsung Jelas
- High-speed dedicated optical-driver function (vsGeneral-purpose high-speed amplifier)
- Integrated modulation and bias stabilization (vsDiscrete current-driver implementation)
- Low-voltage optical-transmitter integration (vsHigher-voltage laser-driver architecture)
Catatan Desain
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.
Maklumat Kesediaan
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.
