SY58051AUMG - 10.7Gbps CML AnyGate, 16-QFN | Microchip
MPN: SY58051AUMG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $20.1 | $20.10 |
| 10 | $18.5 | $185.00 |
| 100 | $16.8 | $1,680.00 |
| 500 | $15.2 | $7,600.00 |
| 1,000 | $13.9 | $13,900.00 |
SY58051AUMG Overview
A CML (Current-Mode Logic) AnyGate is a configurable differential logic device that can implement many Boolean functions of two variables through pin strapping or configuration, rather than requiring a fixed gate type such as AND, OR, XOR, or multiplexer. Within the signal-chain hierarchy, it belongs to the family of high-speed logic ICs, sitting between pure clock buffers and full FPGA-based glue logic, and serves as a universal building block in high-speed digital, clocking, and data-conversion subsystems.
Key differentiating features include the 10.7Gbps / 8GHz guaranteed throughput, ultra-low deterministic and random jitter performance suitable for SONET and Gigabit Ethernet clock trees, and a unique internal input termination network accessible via a dedicated VT pin. This VT-pin architecture allows the differential inputs to interface to different logic standards, both AC-coupled and DC-coupled, without external resistor-bias or termination networks, producing a clean, stub-free, low-jitter interface solution.
Technically, the SY58051AU implements a 1:1 differential clock/data multiplexer function with CML output levels and integrated 50-ohm-style terminations, which reduces component count, minimizes stub reflections on the input traces, and improves signal integrity at multi-gigabit rates. The exposed-pad QFN-16 package provides a low-inductance ground path essential for jitter performance at these speeds.
Typical applications include clock distribution and fanout trees for high-speed ADCs and FPGAs, SONET/SDH and 10G Ethernet line-card timing, retiming and multiplexing of redundant clock sources, and serial data path glue logic in optical modules and test instrumentation.
Design consideration: the VT pin flexibility means the input termination should be configured deliberately for the source logic standard; AC-coupled sources require proper VT biasing to keep the input common-mode within the datasheet range. Keep the differential traces impedance-controlled at 50 ohms single-ended.
This page synthesizes distributor pricing (LCSC from $20.10 as of 2026-10-10), family-based drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for SY58051AUMG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with SY58051AUMG (same form factor and footprint) — differing in Function, Output Type, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SY58052AUMG
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.68 / Unit
View Datasheet →SY58053AUMG
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SY58051AUMG Maximum Ratings & Electrical Characteristics
| Function | Configurable AnyGate / differential multiplexer (CML) |
| Circuits | 1 |
| Max Data Throughput | 10.7 Gbps |
| Max Clock Frequency | 8 GHz |
| Logic Family | CML (Current-Mode Logic) |
| Input Termination | Internal, accessible via VT pin |
SY58051AUMG standard Pin Configuration Guide
Pin configuration for SY58051AUMG (standard package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for SY58051AUMG.
Refer to the datasheet for full pin configuration.
Typical Applications
SY58051AUMG is suitable for 6 applications: High-Speed Clock Distribution, Redundant Clock Source Multiplexing, Serial Data Path Glue Logic, Optical Module and Transponder Timing, Test and Measurement Instrumentation, High-Speed ADC/DAC Clock Cleanup Stages.
High-Speed Clock Distribution
The SY58051AUMG fits clock distribution trees feeding FPGAs, ASICs, and high-speed converters that demand sub-picosecond-level jitter at rates up to 8GHz. Its CML architecture with integrated input termination via the VT pin removes the external 50-ohm bias networks that normally add stubs and reflections at multi-gigahertz frequencies. In a typical tree, the AnyGate selects between two redundant reference clocks and drives the downstream CML fanout buffer, keeping the signal path stub-free from source to load. Because the 10.7Gbps data rating far exceeds most clock frequencies in this use case, rise/fall-time margin is ample, and the exposed-pad QFN-16 package provides the low-inductance ground return needed to preserve deterministic jitter performance across the distribution network.
Recommended
Redundant Clock Source Multiplexing
In high-availability systems such as SONET/SDH line cards, 5G radio units, and network switches, losing the primary reference clock must trigger a hitless or glitch-bounded switchover to a backup source. The SY58051AUMG implements a 1:1 differential multiplexer function with CML I/O, making it a compact selection element between the primary and redundant clock sources. Its internal input termination, accessible through the VT pin, lets each source be AC- or DC-coupled without external bias resistor networks, so the two sources can use different logic standards (for example CML oscillator and LVDS synthesizer) with the same PCB footprint. At an 8GHz maximum clock rating, it covers all common telecom reference frequencies with wide margin, and the low-jitter AnyGate core avoids adding deterministic jitter during the switch.
Recommended
Serial Data Path Glue Logic
At a guaranteed 10.7Gbps throughput, the SY58051AUMG serves as glue logic in serial data paths - for example, implementing select, gating, or re-timing-adjacent Boolean functions directly in the high-speed lane of optical modules, backplane retimers, and test-instrument front ends. Conventional LVDS or CML gate families would force the designer to pick a fixed-function part and build external 50-ohm bias networks; the AnyGate's internal termination and configurable function reduce the BOM and eliminate the stub length of external resistor networks, directly improving eye margin at 10G-class rates. Designers should keep differential traces impedance-controlled at 50 ohms single-ended and place the QFN exposed pad on a solid ground plane to preserve the device's low-jitter interface advantage.
Recommended
Optical Module and Transponder Timing
Optical transceiver modules (SFP+, QSFP+, CFP class) need compact, low-jitter logic between the laser driver/DSP clocking domain and the module controller. The 3x3 mm QFN-16 footprint of the SY58051AUMG fits the tight board space of pluggable modules, while the 10.7Gbps rating covers the serial lane rates of these modules. The VT-pin internal termination is particularly valuable in modules where the host and module sides may use different CML/PECL logic standards with AC-coupling - the SY58051AU interfaces to both without external bias networks, which is difficult in a confined module PCB. Its CML output levels drive typical optical-module CML loads directly, and low additive jitter protects the transmit eye diagram budget.
Recommended
Test and Measurement Instrumentation
BERTs, oscilloscopes, and jitter analyzers benefit from the SY58051AUMG as a configurable selection/gating element in the reference and trigger paths, where a fixed gate type would lock the instrument architecture. The AnyGate concept means one PCB population supports several product configurations by OPN choice, reducing layout variants. With an 8GHz clock rating and internal CML terminations via VT, the trigger path stays clean to multi-gigahertz edge rates without external termination stubs that would degrade time-interval measurement accuracy. The exposed-pad QFN-16 package mounts on the low-inductance ground plane typical of precision instruments, and the device's ultra-precision CML core contributes minimal deterministic jitter to the measurement chain.
Recommended
High-Speed ADC/DAC Clock Cleanup Stages
Giga-sample converters are acutely sensitive to clock jitter: aperture jitter directly converts into SNR degradation, so the encode clock path must be short, terminated, and low-noise. The SY58051AUMG can sit between the jitter cleaner/PLL and the converter's differential encode input, performing clock selection or gating while presenting a well-terminated CML interface thanks to its VT-pin internal termination network. Supporting clock rates up to 8GHz, it covers the full encode range of current RF-sampling ADCs and DACs. Because it needs no external bias resistors, the encode clock trace remains stub-free, which is a documented cause of spurious content in high-speed converter clocking. AC- or DC-coupling to the converter input is supported per the datasheet coupling guidelines.
Recommended
Recommended Products Summary
Engineering reference data for SY58051AUMG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SY58052AUMG | SY58053AUMG |
|---|---|---|---|
| Package | QFN-16 (3x3 mm, EP) | QFN-16 (3x3 mm, EP) - same | QFN-16 (3x3 mm, EP) - same |
| Brand | Microchip Technology (orig. Micrel) | Microchip Technology | Microchip Technology |
| Max Data Rate | 10.7 Gbps | 10.7 Gbps | 10.7 Gbps |
| Max Clock Frequency | 8 GHz | 8 GHz | 8 GHz |
| Logic Function | AnyGate configurable (see OPN truth table) | AnyGate variant function | AnyGate variant function |
| Internal Input Termination (VT pin) | Yes | Yes | Yes |
| Logic Standard | CML | CML | CML |
Key Differentiators
- Internal input termination accessible via VT pin (vs SY58052AUMG)
- AnyGate configurability versus fixed-function CML gates (vs SY58053AUMG)
- 10.7Gbps guaranteed data throughput (vs SY58052AUMG)
Design Notes
Leverage the VT pin instead of external termination. Per the Microchip SY58051AU datasheet, the internal input termination network is accessible through VT, allowing both AC- and DC-coupled interfaces without external resistor-bias networks. External 50-ohm networks introduce stubs that convert into reflections and deterministic jitter at 10.7Gbps. Route the differential input pair as tightly coupled 50-ohm single-ended (100-ohm differential) traces directly to the QFN pins with no test points on the high-speed section.
Solder the exposed pad of the 16-QFN (3x3 mm) package to a solid, unbroken ground plane with a via array (at least 4-5 vias) beneath the pad. At 8GHz clock rates, ground-return inductance of the exposed pad directly affects edge rate and jitter. Keep all high-speed differential routing on layers adjacent to the ground plane, avoid plane splits under the device, and decouple the supply per the manufacturer datasheet recommended network placed within 2 mm of the supply pins.
Verify the truth table of the specific AnyGate OPN before substitution: the SY5805x family shares one die and package across multiple ordering part numbers, each implementing a different Boolean function. A drop-in that is electrically compatible may not be logically compatible. For AC-coupled sources, confirm the VT bias configuration keeps the input common-mode inside the datasheet range under all data patterns - undersized AC-coupling capacitors at 10.7Gbps cause baseline wander and intersymbol interference.
Compliance Information
Compliance declarations were not present in the verified web data. Confirm RoHS/REACH status on the official Microchip SY58051AU product page before design-in.
