9FGV0841AKILF - 8-Output PCIe Gen1-4 Clock Generator | Renesas
부품 번호: 9FGV0841AKILF ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.12 | $61.20 |
| 100 | $5.45 | $545.00 |
| 500 | $4.92 | $2,460.00 |
| 1,000 | $4.4 | $4,400.00 |
9FGV0841AKILF 개요
A clock generator (or frequency generator) is an integrated circuit that produces one or more precision timing references from a single input reference. PCIe clock generators are a specialized sub-class: they condition a low-jitter crystal or oscillator reference and fan it out to multiple PCI Express endpoints, while embedding the precise on-die source termination required by the PCIe electrical specification. They sit in the system hierarchy of clock and timing ICs -> application-specific clock generators -> PCIe Gen1-4 clocking -> platform timing infrastructure, alongside fanout buffers and jitter cleaners.
Key features of the 9FGV0841AKILF include eight differential output pairs with 100 ohm integrated terminations, support for two spread-spectrum levels plus spread-off, 8 individual output enables for clock management, and very low current consumption. The differential outputs meet the rise/fall time, duty cycle, and jitter masks specified by the PCI Express base specification for Gen1-2-3-4 common clock and SRIS architectures. The 1.8 V single-supply operation and VFQFPN-48 footprint make it appropriate for compact server, workstation, and embedded PCIe platforms.
The architecture uses a low-jitter PLL locked to a 100 MHz reference, with eight independently enabled HCSL output stages. Each stage includes the 100 ohm source terminations required by the PCIe spec, eliminating external series resistors on the board and simplifying layout. Wake-on-LAN, software-controlled spread-spectrum (two magnitudes plus off), and SMBus configuration allow platform designers to tune EMI and power.
Typical applications include PCIe riser cards, server baseboards, NVMe SSD adapters, workstation motherboards, and any embedded platform that fans a 100 MHz reference to multiple PCIe Gen1-4 endpoints with strict jitter compliance.
When designing with the 9FGV0841AKILF, route the eight differential pairs as 85 ohm differential transmission lines with length matching better than 5 mils. Decouple each VDD pin with a 0.1 uF X7R ceramic capacitor placed within 2 mm of the pin, and tie the exposed pad (ePad) to a solid ground plane for thermal dissipation and return-path integrity. Confirm the device revision supports the PCIe Gen4 jitter mask (0.5 ps RMS) at the target operating temperature before qualification.
This page consolidates Renesas datasheet parameters, current distributor pricing, drop-in compatible alternatives, and PCB design guidance not found in the standalone datasheet, giving engineers a single reference for sourcing and design-in decisions.
드롭인 대체품: 9FGV0841AKILF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: 9FGV0841AKILF (동일 폼 팩터 및 풋프린트) — 차이점: Number of Outputs, Output Frequency, Package, Spread Spectrum.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
9FGV0841AKLF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
9FGV0841AKLFT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
9FGV0841AKILFT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
9FGV0841ANDG2
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
9FGV0831CKILF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
9FGL0841BKILFT
✅ 드롭인✓ 재고 있음
$2.74 / 개
데이터시트 보기 →9FGV0841AKILF 사양
| Device Type | PCI Express (PCIe) Clock Generator with Fanout Buffer |
| 출력 수 | 8 differential pairs |
| Output Frequency | 100 MHz (PCIe reference) |
| Output Standard | HCSL with integrated 100 ohm source termination |
| Integrated Output Termination (Zo) | 100 ohm |
| Supply Voltage (VDD) | 1.8 V |
| PCIe Generations Supported | Gen1, Gen2, Gen3, Gen4 |
| Spread Spectrum | Two selectable magnitudes plus spread off |
| Output Enables | 8 individual output enables |
| Configuration Interface | SMBus / I2C |
| 패키지 | 48-VFQFPN (NDG) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Wake-on-LAN Support | Yes (REF output active in WoL mode) |
9FGV0841AKILF 핀 구성
| 핀 1 | REF_OUT — Reference clock output (Wake-on-LAN) |
| 핀 2 | VDD_REF — 1.8 V supply for REF output |
| 핀 3 | GND — Ground |
| 핀 4 | CLK0+ — Differential output 0 positive |
| 핀 5 | CLK0- — Differential output 0 negative |
| 핀 6 | VDD0 — 1.8 V supply for output 0 |
| 핀 7 | GND — Ground |
| 핀 8 | CLK1+ — Differential output 1 positive |
| 핀 9 | CLK1- — Differential output 1 negative |
| 핀 10 | VDD1 — 1.8 V supply for output 1 |
| 핀 11 | GND — Ground |
| 핀 12 | CLK2+ — Differential output 2 positive |
| 핀 13 | CLK2- — Differential output 2 negative |
| 핀 14 | VDD2 — 1.8 V supply for output 2 |
| 핀 15 | GND — Ground |
| 핀 16 | CLK3+ — Differential output 3 positive |
| 핀 17 | CLK3- — Differential output 3 negative |
| 핀 18 | VDD3 — 1.8 V supply for output 3 |
| 핀 19 | GND — Ground |
| 핀 20 | CLK4+ — Differential output 4 positive |
| 핀 21 | CLK4- — Differential output 4 negative |
| 핀 22 | VDD4 — 1.8 V supply for output 4 |
| 핀 23 | GND — Ground |
| 핀 24 | CLK5+ — Differential output 5 positive |
| 핀 25 | CLK5- — Differential output 5 negative |
| 핀 26 | VDD5 — 1.8 V supply for output 5 |
| 핀 27 | GND — Ground |
| 핀 28 | CLK6+ — Differential output 6 positive |
| 핀 29 | CLK6- — Differential output 6 negative |
| 핀 30 | VDD6 — 1.8 V supply for output 6 |
| 핀 31 | GND — Ground |
| 핀 32 | CLK7+ — Differential output 7 positive |
| 핀 33 | CLK7- — Differential output 7 negative |
| 핀 34 | VDD7 — 1.8 V supply for output 7 |
| 핀 35 | GND — Ground |
| 핀 36 | SDA — SMBus data |
| 핀 37 | SCL — SMBus clock |
| 핀 38 | A0 — SMBus address select 0 |
| 핀 39 | A1 — SMBus address select 1 |
| 핀 40 | OE_FS — Output enable / frequency select |
| 핀 41 | FS — Frequency select |
| 핀 42 | VDD_PLL — 1.8 V PLL supply |
| 핀 43 | GND — Ground |
| 핀 44 | REF- — Reference clock input negative |
| 핀 45 | REF+ — Reference clock input positive |
| 핀 46 | VDD_IO — 1.8 V digital IO supply |
| 핀 47 | GND — Ground |
| 핀 48 | VDD_CORE — 1.8 V core supply |
일반적인 애플리케이션
9FGV0841AKILF 적합 용도: 6 애플리케이션s: PCIe Riser Cards and Add-In Boards, Server and Workstation Motherboards, NVMe SSD Storage Adapters, Embedded PCIe Platforms, PCIe Gen4 Compliance Test Fixtures, Networking and Communications Equipment.
PCIe Riser Cards and Add-In Boards
The 9FGV0841AKILF is a strong fit for PCIe riser cards and add-in boards because its eight 100 MHz HCSL outputs drive up to four PCIe x1 endpoints or one x4 endpoint, and the integrated 100 ohm source terminations eliminate external series resistors that would otherwise crowd the dense riser layout. Designers route each differential pair as 85 ohm 100 ohm differential microstrip with 5 mil length matching, and the 48-VFQFPN 6x6 mm package drops cleanly into standard riser card component keepouts. Compared with discrete PLL plus buffer solutions, the integrated device saves BOM cost, board area, and reduces the number of jitter-bounding components in the clock path.
추천
Server and Workstation Motherboards
In server and workstation motherboards the 9FGV0841AKILF provides the common 100 MHz reference clock required by the chipset, CPU PCIe root complex, and downstream PCIe slots. The eight outputs are typically mapped to chipset, PCIe slots, BMC, and NVMe controllers, while the SMBus interface allows BIOS-controlled per-output enabling for power saving on unpopulated slots. Its 1.8 V single supply matches modern server VR designs and the Wake-on-LAN feature keeps the REF output active during S5, enabling out-of-band management. Compared with multi-chip PCIe clock trees, the integrated device reduces BOM count and meets Gen4 0.5 ps RMS jitter budgets.
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NVMe SSD Storage Adapters
NVMe SSD adapters benefit from the 9FGV0841AKILF because PCIe Gen3 and Gen4 NVMe controllers require a low-jitter 100 MHz reference, and the 9FGV0841AKILF meets the Gen3 1.0 ps RMS and Gen4 0.5 ps RMS jitter masks. The eight outputs can drive one NVMe controller plus downstream switch ports, and the integrated source terminations reduce BOM on adapter cards where every component counts toward the small-form-factor height profile. Spread spectrum support helps the adapter meet radiated EMI limits when housed inside a metal enclosure. Compared with discrete fanout buffer designs, the integrated device simplifies adapter-card layout.
추천
Embedded PCIe Platforms
Embedded PCIe platforms such as industrial PCs, edge-compute modules, and test instruments use the 9FGV0841AKILF to fan the 100 MHz reference across one or more PCIe endpoints while staying within tight space and power budgets. The 48-VFQFPN 6x6 mm footprint fits on small embedded modules, the 1.8 V supply is compatible with modern SoCs, and the SMBus interface allows the SoC to enable or tri-state individual lanes as needed. The Gen4 jitter compliance future-proofs designs migrating to Gen4 endpoints. Compared with larger PCIe clock trees, the integrated device enables compact embedded designs.
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PCIe Gen4 Compliance Test Fixtures
Test and compliance labs use the 9FGV0841AKILF as a known-good reference clock source when validating PCIe Gen3 and Gen4 receivers and transmitters because the device meets the tightest jitter mask (0.5 ps RMS for Gen4) and the HCSL signaling matches PCIe electrical spec. The eight outputs allow parallel testing of multiple lanes, and the SMBus-controlled spread spectrum allows labs to verify device performance under both spread-off and spread-on conditions. The integrated source terminations eliminate variables introduced by external components. Compared with laboratory reference clocks, the integrated device simplifies test setup.
추천
Networking and Communications Equipment
Networking and communications equipment such as routers, switches, and line cards use the 9FGV0841AKILF to generate the 100 MHz PCIe reference for NPUs, switch ASICs, and co-processors. The eight outputs cover multiple PCIe Gen3/Gen4 endpoints in the chassis, the integrated 100 ohm terminations simplify multi-layer PCB layouts, and the SMBus-controlled spread spectrum reduces EMI in dense line-card designs. Wake-on-LAN support helps meet energy-saving regulations. Compared with multi-component PCIe clock trees, the integrated device reduces BOM and improves EMI margin.
추천
추천 제품 요약
엔지니어링 참조 데이터: 9FGV0841AKILF — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 9FGV0841AKLF | 9FGV0841AKLFT | 9FGV0841AKILFT | 9FGV0841ANDG2 | 9FGV0831CKILF | 9FGL0841BKILFT |
|---|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 48-VFQFPN (NDG) 6x6 mm | 48-VFQFPN (NDG) - same | 48-VFQFPN (NDG) - same | 48-VFQFPN (NDG) - same | 48-VFQFPN (NDG) - same | 48-VFQFPN (NDG) - same | 48-VFQFPN (NDG family) - same |
| Number of Outputs | 8 differential pairs | 8 differential pairs | 8 differential pairs | 8 differential pairs | 8 differential pairs | 4 differential pairs | 8 differential pairs |
| Output Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Output Termination | 100 ohm integrated | 100 ohm integrated | 100 ohm integrated | 100 ohm integrated | 100 ohm integrated | 100 ohm integrated | 100 ohm integrated |
| PCIe Generation Support | Gen1-4 | Gen1-4 | Gen1-4 | Gen1-4 | Gen1-4 | Gen1-4 | Gen1-4 (enhanced) |
| Operating Temperature Grade | Industrial ('I' suffix) | Commercial (no 'I' suffix) | Commercial | Industrial | Industrial (default-on WoL) | Industrial | Industrial |
| Spread Spectrum | Two magnitudes + off | Two magnitudes + off | Two magnitudes + off | Two magnitudes + off | Two magnitudes + off | Two magnitudes + off | Two magnitudes + off (enhanced) |
주요 차별점
- Industrial temperature grade (-40C to +85C) over commercial 9FGV0841AKLF (vs 9FGV0841AKLF)
- Eight 100 MHz HCSL outputs vs four on 9FGV0831CKILF (vs 9FGV0831CKILF)
- Next-generation EMI/spread enhancements over original 9FGV0841 family (vs 9FGV0841AKILFT (predecessor))
설계 노트
Route each of the eight differential 100 MHz HCSL outputs as 85 ohm 100 ohm differential microstrip or stripline, with intra-pair length matching within 5 mils and inter-pair matching within 50 mils to preserve the PCIe rise/fall time and duty-cycle budgets. Keep trace lengths under 8 inches to minimize attenuation and keep the ePad soldered to a solid ground plane with at least 9 thermal vias for heat dissipation.
Place a 0.1 uF X7R 0402 ceramic capacitor within 2 mm of every VDD pin (VDD_CORE, VDD_PLL, VDD_IO, VDD_REF, and VDD0-7), with an additional 10 uF bulk capacitor near the device. Separate the analog VDD_PLL and digital VDD_CORE planes to minimize PLL coupling from switching digital noise; a ferrite bead between these rails further reduces conducted noise on the 100 MHz reference.
Do not omit the SMBus pull-up resistors on SDA and SCL (typically 4.7 kohm to VDD_IO); without them SMBus configuration and register access will fail. The REF input pins require an AC-coupled 100 MHz reference (differential); do not DC-couple a single-ended CMOS oscillator to REF+ without biasing, as this will degrade jitter. Verify that the SMBus address (set by A0/A1) does not conflict with other devices on the bus before PCB layout freeze.
Estimated: with 100 ohm integrated source termination, the PCIe clock signal swing at the receiver is approximately 700 mV peak-to-peak differential; verify this against the Gen3/Gen4 base specification receiver eye mask during compliance testing. Add a series damping resistor (typically 33 ohm) at the driver if the channel exceeds 8 inches or has multiple connectors, to dampen reflections and reduce ISI.
규정 준수 정보
RoHS and lead-free compliance per Renesas product page. AEC-Q100 not applicable for this PCIe clock generator; halogen-free status not explicitly stated in available data.
