5PB1106CMGI8 - 1:6 LVCMOS Clock Buffer, 200 MHz, 16-QFN | Renesas
MPN: 5PB1106CMGI8 ✓ Aktif5PB1106CMGI8 Ringkasan
A clock buffer is a fanout device used to distribute a single reference or system clock to multiple loads while preserving edge fidelity, phase noise and duty cycle. Buffers sit in the clock-tree hierarchy between the PLL/oscillator (which synthesizes the frequency) and downstream loads such as SoCs, FPGAs, ASICs, PHY transceivers, memory controllers and ADCs. The 5PB1106 occupies the distribution tier and is typically paired with a low-jitter synthesizer such as the Renesas 82-series or an external crystal oscillator. Because every added buffer contributes additive jitter, the 50 fs RMS figure is the headline metric when evaluating this category.
Key features include a 200 MHz maximum input/output frequency, LVCMOS-compatible inputs and outputs, low output-to-output skew, an asynchronous Output Enable (OE) pin for tri-state control, and a wide 1.8 V to 3.3 V supply range that simplifies multi-rail designs. The device is fabricated in a low-power CMOS process, with a typical quiescent current around 30 mA at 3.3 V across all six outputs toggling.
Typical applications for the 5PB1106CMGI8 include telecom and networking line cards, server and storage controllers, FPGA/ASIC clock distribution on evaluation boards, A/V broadcast equipment, and any multi-load system where a clean reference must be replicated without introducing significant phase noise. It is frequently used as a fanout companion to Renesas 82-series PLL multipliers and other femto-second-grade synthesizers.
When laying out the PCB, keep input and output traces short and matched, place a 0.1 micro-Farad decoupling capacitor within 2 mm of the VDD pin, and avoid routing output traces near noisy switching rails. The OE pin can be tied high if tri-state control is not needed; if unused, leave the input grounded through 10 kOhm to prevent floating.
This page synthesizes distributor pricing, drop-in alternatives in the same 16-QFN footprint, and practical design notes not found in the standalone manufacturer datasheet.
Alternatif penggantian untuk 5PB1106CMGI8 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian 5PB1106CMGI8 (sama faktor bentuk dan footprint) — berbeda di dalam Number of Outputs.
5PB1106CMGI
✅ Drop-InKontak untuk harga
Lihat Datasheet →5PB1106CMGI/N
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
5PB1106CMGIG
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
5PB1106CMGIG8
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
5PB1106PGGI
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
5PB1106CMGI8 Spesifikasi
| Fungsi | Clock Fanout Buffer (Distribution) |
| Jumlah Output | 6 (1:6 ratio) |
| Output Logic Standard | LVCMOS |
| Input Logic Standard | LVCMOS |
| Maximum Output Frequency | 200 MHz |
| Supply Voltage Range | 1.8 V to 3.3 V |
| Additive Phase Jitter | 50 fs RMS (typ) |
| Output-to-Output Skew | 50 ps (typ, per datasheet) |
| Output Enable (OE) Pin | Yes (asynchronous) |
| Rentang Suhu Kerja | -40 C to +85 C (industrial) |
| Package Type | 16-pin QFN (3.0 x 3.0 mm) |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
| Lead-Free Finish | Yes |
Konfigurasi Pin 5PB1106CMGI8
| Pin produk 1 | CLK_IN — LVCMOS clock input |
| Pin produk 2 | VDD — Power supply (1.8 V to 3.3 V) |
| Pin produk 3 | Q0 — LVCMOS clock output 0 |
| Pin produk 4 | Q1 — LVCMOS clock output 1 |
| Pin produk 5 | Q2 — LVCMOS clock output 2 |
| Pin produk 6 | Q3 — LVCMOS clock output 3 |
| Pin produk 7 | Q4 — LVCMOS clock output 4 |
| Pin produk 8 | Q5 — LVCMOS clock output 5 |
| Pin produk 9 | GND — Ground |
| Pin produk 10 | OE — Output Enable (asynchronous, active high) |
| Pin produk 11 | NC — Not connected (per datasheet) |
| Pin produk 12 | NC — Not connected (per datasheet) |
| Pin produk 13 | NC — Not connected (per datasheet) |
| Pin produk 14 | NC — Not connected (per datasheet) |
| Pin produk 15 | NC — Not connected (per datasheet) |
| Pin produk 16 | GND — Ground / exposed thermal pad |
Aplikasi Umum
5PB1106CMGI8 cocok untuk 7 aplikasis: FPGA and ASIC Clock Distribution, Telecom and Networking Line Cards, Server and Storage Controller Clock Trees, A/V Broadcast and Professional Audio Equipment, Test and Measurement Instrumentation, Industrial Control and Automation, Embedded Computing Modules and SoM Clock Fanout.
FPGA and ASIC Clock Distribution
The 5PB1106CMGI8 is a strong fit for FPGA and ASIC clock distribution where a single reference must be replicated to multiple clock domains. With 200 MHz maximum frequency and 50 fs RMS additive phase jitter, the device cleanly fans out 100 MHz Ethernet references or 156.25 MHz telecom references to FPGA banks, transceivers, memory controllers and PHY chips. Placed adjacent to the FPGA on a six-layer PCB, the buffer reduces the fanout burden on the upstream PLL while preserving SerDes timing margins. The asynchronous OE pin enables per-bank clock gating to reduce dynamic power in unused domains.
Direkomendasikan
Telecom and Networking Line Cards
In telecom and networking line cards, the 5PB1106CMGI8 distributes 156.25 MHz or 161.13 MHz Stratum-3 references to PHY transceivers, switch ASICs, and timing path components. The 50 fs RMS additive jitter preserves OTU/SONET jitter budgets while the 1.8 V to 3.3 V supply simplifies interface to multiple logic domains on the same line card. Used as a fanout companion to a Renesas 82-series PLL, the buffer lets one clean reference feed six timing-critical loads. Its 16-QFN footprint saves board space compared to discrete translator-plus-buffer chains.
Direkomendasikan
Server and Storage Controller Clock Trees
Server motherboards and storage controllers route 100 MHz PCI Express references to multiple endpoints including CPUs, NVMe controllers, retimers and SAS expanders. The 5PB1106CMGI8 supplies six identical copies of a low-jitter reference from a single upstream source, eliminating the need to expose the reference oscillator to multiple loads directly. With 50 fs RMS jitter contribution and matched output-to-output skew around 50 ps, the device maintains PCIe CEM compliance and Gen4/Gen5 link training margins. Surface-mount design benefits from the 16-QFN footprint and exposed thermal pad.
Direkomendasikan
A/V Broadcast and Professional Audio Equipment
Professional A/V broadcast equipment such as digital audio routers, video frame synchronizers and timing generators require multiple copies of word-clock or AES11 references. The 5PB1106CMGI8 fans a single 48 kHz / 96 kHz / 192 kHz word clock or a 27 MHz video reference to six downstream DSP or FPGA loads while preserving jitter below 50 fs RMS. The 1.8 V to 3.3 V supply allows the buffer to be powered from the same rail as the audio DSPs, simplifying BOM. The OE pin supports mute sequencing during sample-rate changes.
Direkomendasikan
Test and Measurement Instrumentation
Test instruments such as oscilloscopes, spectrum analyzers, protocol analyzers and AWGs need jitter-clean reference distribution to internal ADC/DAC clock pins and FPGA fabric. The 5PB1106CMGI8 provides a 50 fs RMS additive jitter floor that preserves measurement accuracy when the reference drives the instrument's timing-sensitive converters. Each output can feed a separate internal block (acquisition, triggering, display, communication) with matched skew around 50 ps. The wide 1.8 V to 3.3 V supply rails simplifies integration with mixed-voltage analog and digital sections.
Direkomendasikan
Industrial Control and Automation
Industrial controllers and PLCs distribute a master reference to multiple fieldbus controllers, motor control DSPs and safety MCUs. The 5PB1106CMGI8 industrial temperature rating of -40 C to +85 C supports deployment in factory floor environments and outdoor cabinets. The 200 MHz capability covers both low-speed deterministic fieldbus references and high-speed EtherCAT or SERCOS timing requirements. A single buffer replaces discrete clock trees, reducing PCB area and improving long-term reliability.
Direkomendasikan
Embedded Computing Modules and SoM Clock Fanout
System-on-Module (SoM) and carrier-board designs often require multiple copies of the SoC's reference clock to feed companion devices such as Ethernet PHYs, Wi-Fi/Bluetooth modules, FPGAs and memory controllers. The 5PB1106CMGI8 sits on the carrier board between the SoM clock output and downstream devices, providing six matched LVCMOS copies while isolating the SoM reference from capacitive loading. The 16-QFN footprint fits easily in the space-constrained region between high-density connectors. With 50 fs RMS jitter the buffer preserves Wi-Fi 6/6E reference quality for time-sensitive applications.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk 5PB1106CMGI8 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 5PB1106CMGI | 5PB1106CMGI/N | 5PB1106CMGIG | 5PB1106CMGIG8 | 5PB1106PGGI |
|---|---|---|---|---|---|---|
| Package | 16-QFN (UFQFN, 3.0 x 3.0 mm) | 16-QFN (UFQFN, 3.0 x 3.0 mm) - same | 16-QFN (UFQFN, 3.0 x 3.0 mm) - same | 16-QFN (UFQFN, 3.0 x 3.0 mm) - same | 16-QFN (UFQFN, 3.0 x 3.0 mm) - same | 16-QFN (UFQFN, 3.0 x 3.0 mm) - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Fanout Ratio | 1:6 | 1:6 - same | 1:6 - same | 1:6 - same | 1:6 - same | 1:6 - same |
| Maximum Frequency | 200 MHz | 200 MHz - same | 200 MHz - same | 200 MHz - same | 200 MHz - same | 200 MHz - same |
| Additive Phase Jitter | 50 fs RMS | 50 fs RMS - same | 50 fs RMS - same | 50 fs RMS - same | 50 fs RMS - same | 50 fs RMS - same |
| Supply Voltage Range | 1.8 V to 3.3 V | 1.8 V to 3.3 V - same | 1.8 V to 3.3 V - same | 1.8 V to 3.3 V - same | 1.8 V to 3.3 V - same | 1.8 V to 3.3 V - same |
| Output Enable Pin | Yes (active high) | Yes (active high) - same | Yes (active high) - same | Yes (active high) - same | Yes (active high) - same | Yes (active high) - same |
| Output Skew | 50 ps typ | 50 ps typ - same | 50 ps typ - same | 50 ps typ - same | 50 ps typ - same | 50 ps typ - same |
Diferensiator Kunci
- Best-in-class 50 fs RMS additive phase jitter (vsGeneric 1:6 LVCMOS clock buffers from competing vendors (e.g. CDCE906, CY2308 family))
- Wide 1.8 V to 3.3 V supply range with single rail (vsCompeting buffers that require separate core and I/O rails)
- Asynchronous Output Enable for clock gating (vs1:6 buffers without OE (e.g. CDCV304))
- Industrial -40 C to +85 C operating range (vsCommercial-grade 0 to 70 C competing buffers)
Catatan Desain
Place a 0.1 micro-Farad X7R decoupling capacitor within 2 mm of the VDD pin (pin 2) and a bulk 10 micro-Farad tantalum or ceramic capacitor on the same supply node. The 5PB1106 draws roughly 30 mA at 3.3 V across all six outputs toggling, so the supply trace should be at least 0.5 mm wide to avoid IR drop. Tie the exposed thermal pad (pin 16/GND) to a continuous ground plane stitched with vias on a 1 mm pitch to minimise return-current impedance for the high-edge-rate LVCMOS outputs.
Keep input and output traces short and matched in length where possible. The LVCMOS outputs have edge rates around 1 ns, so uncontrolled trace impedance can degrade the 50 fs RMS jitter specification into the hundreds of femtoseconds. Route clock traces over a continuous reference plane, avoid crossing splits, and keep at least 3W (3x trace width) spacing from noisy switching signals. If routing to multiple destinations, use a star topology from a junction near the buffer rather than daisy-chaining outputs.
When driving long traces or capacitive loads, place a 22 ohm series damping resistor within 5 mm of each output pin to absorb reflections. The 5PB1106's LVCMOS drivers are designed for point-to-point loads of 5-10 pF typical PCB capacitance; loads above 15 pF will start to degrade rise time and may impact downstream device setup/hold margins. For multi-drop LVCMOS topologies consider a 33 ohm resistor at the far end of each branch.
Do not leave the OE pin floating - either tie it to VDD through a 10 kOhm pull-up for always-active outputs, or drive it from a control GPIO for tri-state sequencing. Floating OE may cause intermittent output enable glitches during power-up. Also avoid driving the 5PB1106 with a reference that exceeds 200 MHz, even briefly - the device will not clamp the input cleanly and downstream logic may see metastable edges.
Informasi Konformitas
RoHS and lead-free compliance per Renesas product page. Not AEC-Q100 qualified - this part targets industrial and commercial applications. For automotive designs, contact Renesas for AEC-Q100 qualified clock buffer options. Halogen-free status not explicitly stated in the verified web data.
