ICS1526G - 110MHz Clock Synthesizer, 16-TSSOP | Renesas
MPN： ICS1526G ✓ 啟用中ICS1526G 概覽
A clock synthesizer (also called a PLL-based frequency generator or clock generator IC) is a timing IC that multiplies, divides, or regenerates a reference clock into one or more stable output frequencies. It belongs to the clock and timing hierarchy inside integrated circuits, sitting between a crystal oscillator and the logic, memory, or display circuitry that consumes the clock. Unlike a simple crystal oscillator, a PLL-based synthesizer can derive many related output frequencies from one low-frequency reference and can phase-align those outputs to an external video sync source.
Key characteristics of the ICS1526G include a 110 MHz maximum frequency, a single clock/frequency synthesizer function, and 16-TSSOP surface-mount packaging. The device is specifically suited to video projectors and displays across multiple resolutions, where the master oscillator frequency and lock behavior determine whether the generated timing is stable enough for pixel-perfect image reproduction.
Technically, the ICS1526 relies on a phase-locked loop to lock an internal VCO to a reference input, then divides or multiplies that locked frequency down to the desired output. The mixed-mode CMOS implementation combines analog loop control with digital frequency programming, which is why phase adjust and lock detection features are central to its use in genlocked video systems.
Typical applications include video projector timing generation, professional video monitoring equipment, broadcast and studio reference distribution, genlocked display systems, industrial imaging panels, and general-purpose clock trees for consumer and industrial electronics where a single reference source must fan out to multiple derived clocks.
When designing with the ICS1526G, verify the reference frequency window, the required output divider ratios, and loop lock acquisition time for your target video standard. Also confirm that your output jitter and skew budget is satisfied before committing to the part, since these parameters are not published in the distributor listings summarized on this page.
This page consolidates distributor availability, package details, drop-in alternatives from the same Renesas/IDT clock-generator family, and practical design guidance that is not consolidated in any single distributor product page.
直接替換替代品，適用於 ICS1526G — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ICS1526G （相同外形與佔位） — 差異在於 Package, Maximum Frequency, Product Type, Device Type, Input Type.
ICS1526
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ICS501G
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ICS502M
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ICS1526G 規格
| Device Type | Clock/Frequency Synthesizer, Frequency Generator IC |
| Maximum Frequency | 110 MHz |
| 輸出數量 | 1 |
| 封裝 | 16-TSSOP (0.173 in, 4.40 mm width) |
| 安裝類型 | Surface Mount |
| Technology | Low-voltage CMOS mixed-mode |
| Phase Adjustment | Phase controlled clock synthesis (phase adjustable) |
| Genlock / Line-Lock Support | Yes - line-locked and genlocked video operation |
| Video Applications | Video projectors and displays at multiple resolutions |
| Lead-Free / Green Package | Yes - 'G' suffix denotes green (RoHS-compliant) TSSOP |
| RoHS 狀態 | Compliant (green package designation) |
| Tube Packaging | Tube (per distributor listing) |
| Original Manufacturer | Integrated Device Technology (IDT), now Renesas Electronics |
ICS1526G yes - 'g' suffix denotes green (rohs-compliant) tssop 腳位配置指南
ICS1526G（yes - 'g' suffix denotes green (rohs-compliant) tssop 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ICS1526G.
請參閱 資料表 以查看完整腳位配置。
典型應用
ICS1526G 適用於 6 應用s: Video Projector Timing Generation, Genlocked Broadcast and Studio Monitoring, Industrial Imaging and Machine Vision Panels, Consumer Display and Projection Electronics, Test and Measurement Instrumentation, General-Purpose Clock Tree for Industrial Electronics.
Video Projector Timing Generation
The ICS1526G is built for exactly this use case, providing a single phase-controlled clock output at up to 110 MHz for pixel and sync timing in projection systems. Because the manufacturer specifies support for video projectors across multiple resolutions, the phase-adjust and line-lock behavior lets the internal oscillator stay referenced to an incoming composite sync rather than free-running. The practical benefit is a stable, jitter-consistent clock tree for the scaler and display pipeline without adding a separate video-standard timing generator. Validate the reference sync level, loop bandwidth, and lock-acquisition time against your source format, since those values are defined in the ICS1526RevP datasheet rather than distributor listings.
推薦
Genlocked Broadcast and Studio Monitoring
In broadcast monitoring, picture and waveform displays must be phase-locked to the house reference so that operators can compare sources frame-for-frame. The ICS1526G's line-locked and genlocked capability lets the internal PLL lock to an external sync reference and then deliver a phase-adjusted clock, which removes the need for a separate genlock generator board. With a 110 MHz ceiling and single-output architecture, it fits the master clock slot of a multi-format monitor. Confirm that the reference generator's jitter and frequency tolerance fall inside the loop's capture range, and verify phase-adjust resolution before layout sign-off.
推薦
Industrial Imaging and Machine Vision Panels
Machine-vision cameras and high-resolution industrial LCD panels often need a master clock whose phase is tied to a master trigger or frame sync so that capture and display stay aligned. The ICS1526G supplies that reference in a compact 16-TSSOP surface-mount package with a single 110 MHz-capable output, which keeps the timing section small next to the sensor pipeline. Its low-voltage CMOS mixed-mode implementation supports low-power industrial equipment better than older bipolar clock parts. In a machine-vision design, budget the lock time in the trigger-to-exposure path and make sure the phase-adjust polarity matches your camera controller's expectation.
推薦
Consumer Display and Projection Electronics
Consumer projectors and displays contain several timing domains - scaler clock, LVDS panel clock, and backlight or lamp drive timing - that must stay coherent. Placing the ICS1526G at the head of that tree lets one reference oscillator drive a 110 MHz-capable, phase-controlled output that downstream dividers can scale, reducing the number of independent crystals on the board. The 16-TSSOP footprint is easy to route in space-constrained consumer electronics, and the single-output architecture keeps BOM and board area low. Because it is a legacy IDT-origin design, evaluate supply continuity and, where a newer PLL family is acceptable, weigh the trade-off against modern integrated clock generators with digital dividers.
推薦
Test and Measurement Instrumentation
Laboratory instruments that must trigger on an external reference - scope trigger chains, protocol analyzers, automated test equipment - benefit from a clock that can be disciplined by an incoming frequency standard. The ICS1526G's phase-controlled synthesis lets the instrument lock to a 10 MHz reference and generate the derived timing needed by the acquisition chain, all in a 16-pin TSSOP. The practical benefit over a free-running oscillator is repeatability across temperature and unit-to-unit, which directly improves measurement correlation. Validate the reference input format, capture range, and loop bandwidth against the instrument's time-base requirement, and confirm output jitter if your measurement demands sub-nanosecond accuracy.
推薦
General-Purpose Clock Tree for Industrial Electronics
Industrial control boards frequently need several derived frequencies from one stable source, and the ICS1526G can sit at the top of such a tree as the frequency-generating element feeding downstream counters and dividers. At up to 110 MHz with a single output, it suits systems where the highest-speed domain is the only one needing tight control while the rest of the board uses simple division. Its low-voltage CMOS mixed-mode implementation suits space-constrained PLC and embedded controller designs where a TSSOP footprint is preferred over a larger package. Document the divider chain and verify that the reference source's tolerance and aging fit your end-product's timing budget before freezing the design.
推薦
推薦產品摘要
工程參考資料，適用於 ICS1526G — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ICS1526 | ICS501G | ICS502M | ICS411M | ICS409M |
|---|---|---|---|---|---|---|
| Package | 16-TSSOP (0.173 in, 4.40 mm width) | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Brand | Renesas Electronics (IDT origin) | Renesas Electronics (IDT origin) | Renesas Electronics (IDT origin) | Renesas Electronics (IDT origin) | Renesas Electronics (IDT origin) | Renesas Electronics (IDT origin) |
| Device Type | Clock/Frequency Synthesizer, Frequency Generator IC | Clock/Frequency Synthesizer | Clock generator | Clock generator | PLL clock multiplier | PLL clock multiplier |
| Phase-Controlled Clock Synthesis | Yes | Yes | No - general-purpose synthesis | No - general-purpose synthesis | No - fixed multiply ratio | No - fixed multiply ratio |
| Genlock / Line-Lock Capability | Yes - line-locked and genlocked high-resolution video | Yes | No | No | No | No |
| Target Application | Video projectors and displays at multiple resolutions | Video projectors and displays | General-purpose clock generation | General-purpose clock generation | Clock multiplication / distribution | Clock multiplication / distribution |
主要差異化特點
- Built-in genlock and phase-controlled synthesis for video timing (對比ICS501G)
- Same silicon with green/RoHS ordering code (對比ICS1526)
- Video-oriented application support versus pure clock multiplication (對比ICS411M)
- Single-output simplicity reduces BOM and routing in constrained consumer video boards (對比ICS502M)
設計說明
The most common mistake with the ICS1526G is treating it as a generic frequency multiplier. Its defining function is phase-controlled clock synthesis with line-lock and genlock behavior for video timing, so the reference input must be a usable sync or reference signal and the loop must be given time to acquire lock before valid clocking is expected. Confirm reference frequency window, lock-capture range, and lock indication behavior in the ICS1526RevP datasheet before committing to a board layout, because these values are not published in distributor listings.
Route the reference and clock output nets as short, impedance-controlled traces away from switching nodes and display or power-converter stages. The TSSOP-16 body is only 4.40 mm wide, so place decoupling close to the supply pins and keep the ground return path under the device rather than relying on a split plane. If the output drives a cable or long PCB run, add a series source-termination resistor close to the pin to control edge rate and reduce ringing on the 110 MHz-capable clock.
As a low-voltage CMOS mixed-mode PLL synthesizer, the ICS1526's supply requirement, supply current, and power dissipation are governed by the operating and lock state, so use the manufacturer-specified decoupling network and verify supply tolerance against your reference source. Keep analog and digital return currents separate until the ground reference point at the device, and avoid sharing the reference oscillator's supply path with high-current loads. Check for sensitive effects on lock jitter when the reference source is shared with other clock consumers.
Estimated: with a 16-TSSOP package of roughly 0.065 W maximum dissipation at low operating voltage, the junction temperature rise is small in practice, so an external heatsink is not required and standard PCB copper is adequate. This is an order-of-magnitude estimate based on package size and low-voltage CMOS operation, not a datasheet figure; confirm against the absolute maximum power rating in the ICS1526RevP datasheet if your reference voltage or operating temperature exceeds the nominal set.
合規資訊
The 'G' suffix in the ICS1526G ordering code denotes the green, lead-free (RoHS-compliant) version of the IDT-origin ICS1526, as reflected in distributor catalog descriptions. REACH, halogen-free, AEC-Q100 and conflict-minerals declarations are not stated in the verified distributor or manufacturer data and are therefore listed as unknown.
