SY88722VKG Microchip Integrated Circuit (Small Outline Packages) In Stock
The SY88722VKG is a 622 Mbps laser diode driver with output enable, operating from 3.3V or 5V supply rails. Designed for SONET/SDH OC-12 and Gigabit Ethernet optical transmitter modules. Available in compact MSOP-10 package with worldwide stock and shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- SY88722VKG Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 622 Mbps data rate supports OC-12 SONET/SDH and Gigabit Ethernet optical transmit paths
- Dual supply compatibility—3.3V and 5V—simplifies integration into existing optical module power architectures
- Output enable pin allows fast laser shutdown for safety interlocks and APC loop control
- Low-jitter differential CML input interface ensures signal integrity at 622 Mbps
Applications
The SY88722VKG is targeted at optical transceiver modules for SONET OC-12, SDH STM-4, and 622 Mbps Gigabit Ethernet fiber links where precise laser diode modulation current control is essential for eye mask compliance. It is also suited for CATV optical transmitter units and medical imaging systems that use laser diodes for coherent signal transmission over fiber. The output enable pin supports automatic power control loop designs and laser safety interlock circuits in industrial optical communication equipment.
Specifications
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 5V SUPPLY |
| Interface IC Type | INTERFACE CIRCUIT |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 3.63V |
| Supply Voltage-Min | 2.97V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What data rate does the SY88722VKG support, and which optical networking standards does that cover?
The SY88722VKG supports up to 622 Mbps, directly meeting the requirements of SONET OC-12 and SDH STM-4 optical interfaces as well as sub-Gigabit Ethernet fiber links. Its differential CML input interface accepts standard PECL or LVPECL logic levels, making it interoperable with framers and serializers in OC-12 line cards, small form-factor pluggable (SFP) optical modules, and 622 Mbps PON optical network units.
How does the output enable feature of the SY88722VKG assist in laser safety and APC loop design?
The output enable pin allows the host controller to shut down the laser drive current within nanoseconds, implementing Class 1 laser safety interlocks that respond to fiber disconnection or fault conditions. In automatic power control (APC) loops, toggling the output enable with a duty cycle derived from monitor photodiode feedback trims average laser output power to within ±0.5 dB of the target without adjusting bias current, simplifying control firmware.
Can the SY88722VKG operate from both 3.3V and 5V supplies in mixed-voltage optical module designs?
Yes. The SY88722VKG accepts both 3.3 V and 5 V supply rails, enabling integration into optical modules with legacy 5 V backplane power as well as modern 3.3 V low-power transceiver designs. Operating at 3.3 V reduces power consumption compared to 5 V operation—typically by 30% to 40%—which is significant in dense 16-port or 24-port fiber switch line cards where thermal management is constrained.
How does the MSOP-10 package of the SY88722VKG benefit high-density optical transceiver PCB layouts?
The MSOP-10 package measures approximately 3 mm × 3 mm with 0.5 mm lead pitch, occupying under 12 mm² of board area. This allows the laser driver to be placed within 3 mm of the laser diode bond pads, keeping modulation current traces short and minimizing parasitic inductance that would degrade rise and fall times at 622 Mbps. The small footprint fits easily inside SFP or SFF optical module housings with limited PCB space.
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