MAX9675ECQ+ - 110MHz 16x16 Video Crosspoint Switch | Maxim Integrated
料号： MAX9675ECQ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.9 | $89.00 |
| 100 | $7.65 | $765.00 |
| 500 | $6.42 | $3,210.00 |
| 1,000 | $5.2 | $5,200.00 |
MAX9675ECQ 概述
A video crosspoint switch is an analog or digital signal-routing IC that allows any of N inputs to be switched to any of M outputs, typically with buffering on both sides so signals can drive long PCB traces or 75 ohm video loads. Crosspoint switches sit at the heart of video routers, production switchers, surveillance multiplexers, and broadcast equipment, replacing mechanical relays and discrete video amplifiers with a single silicon device. Programmable gain lets the designer compensate for cable losses or output-load variations across channels.
The MAX9675ECQ+ integrates sixteen buffered inputs and sixteen buffered outputs with a fast SPI/QSPI-compatible 3-wire serial interface for matrix mode and per-channel gain programming. The BiCMOS process supports rail-to-rail video swings and wide bandwidth at low quiescent power, while on-chip clamp and bias circuitry preserves AC-coupled video baselines. All outputs are held in a high-impedance disabled state during power-up to avoid signal contention in multi-device arrays.
Typical applications include broadcast video routers, professional video switchers, security and surveillance multiplexers, medical imaging pipelines, automotive infotainment video backbones, and test-and-measurement video generators. The wide supply range (2.7 V to 5.5 V) makes it compatible with both 3.3 V and 5 V logic, while the 110 MHz -3 dB bandwidth easily handles SD-SDI, composite, component, and RGBHV video formats.
When designing, AC-couple inputs and outputs with 220 uF electrolytics and 0.1 uF ceramics, keep ground returns short and wide to preserve 110 MHz flatness, and program gain conservatively at +1 (0 dB) for cable-compensated long runs to avoid clipping into 75 ohm loads.
This page synthesizes distributor pricing, drop-in alternative MPNs, parametric comparison data, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： MAX9675ECQ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MAX9675ECQ （相同外形与封装尺寸） ——差异在于 Configuration, Function, Package, Programmable Gain.
快速对比工具——选择替代料号进行并排对比：
MAX9675ECQ+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX9675ECQ+
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →MAX4360EAX
✅ 直接替换📋 参考替代料（不在目录中）
MAX4357EUI
✅ 直接替换📋 参考替代料（不在目录中）
MAX9675ECQ 最大额定值与电气特性
| 功能 | Video Crosspoint Switch, 16 x 16 nonblocking |
| Configuration | 1 x 16:16 |
| Architecture | Buffered input + buffered output with programmable gain |
| -3 dB Bandwidth | 110 MHz |
| Programmable Gain | Yes (per channel, SPI/QSPI-programmable) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Serial Interface | SPI / QSPI / MICROWIRE-compatible 3-wire |
| Output Disable State | High-Z at power-up (no contention) |
| 封装 | 100-pin TQFP, 14 mm x 14 mm |
| 安装类型 | Surface Mount |
| Process Technology | BiCMOS |
| Transistor Count | 24,467 |
| Video Formats Supported | Composite, component, RGBHV, SD-SDI |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
MAX9675ECQ 引脚配置
| 引脚 1 | IN0 — Video input channel 0 (buffered, AC-coupled) |
| 引脚 20 | IN15 — Video input channel 15 (buffered, AC-coupled) |
| 引脚 21 | VCC — Positive supply, 2.7 V to 5.5 V |
| 引脚 40 | OUT0 — Video output channel 0 (buffered, drives 75 ohm) |
| 引脚 60 | OUT15 — Video output channel 15 (buffered, drives 75 ohm) |
| 引脚 80 | CS — SPI chip-select (active low) |
| 引脚 81 | SCLK — SPI serial clock |
| 引脚 82 | DIN — SPI serial data input |
| 引脚 83 | GND — Ground |
| 引脚 100 | GND — Ground (multiple GND pins for signal return) |
典型应用
MAX9675ECQ 适用于 7 应用s: Broadcast Video Router, Production Video Switcher, Security Surveillance Multiplexer, Medical Imaging Pipeline, Automotive Infotainment Video Backbone, Test and Measurement Video Generator, Professional Audio/Video Receiver Routing.
Broadcast Video Router
The MAX9675ECQ+'s 110 MHz -3 dB bandwidth and 16x16 nonblocking matrix make it an ideal analog SD video router for broadcast facilities routing composite NTSC/PAL, component, and SD-SDI signals between studios and master control. Its 100-TQFP footprint integrates 16 buffered inputs and outputs per chip, eliminating the need for external video amplifiers per channel. The per-channel programmable gain (SPI/QSPI-set) compensates for cable losses across long runs to remote studios. Compared with discrete relay matrices, the MAX9675ECQ+ removes mechanical wear, provides matched channel characteristics, and reduces BOM count by an order of magnitude.
推荐
Production Video Switcher
Inside a live production switcher, the MAX9675ECQ+ acts as the analog input matrix feeding the vision mixer, supporting 16 camera or source inputs and 16 program/preview/aux outputs. The 110 MHz bandwidth preserves chroma edges and avoids the smear artifacts common to lower-bandwidth switches. Its fast SPI/QSPI serial interface enables sub-millisecond matrix reconfiguration during take/cut transitions, while the high-impedance output state at power-up prevents program-preview glitches during cold boot. The 2.7 V to 5.5 V supply range aligns with modern FPGA-based Tally/Mix logic rails.
推荐
Security Surveillance Multiplexer
For 16-camera surveillance installations, the MAX9675ECQ+ provides a single-chip solution to route any of 16 analog camera feeds to any of 16 monitor outputs or DVR inputs. Its buffered inputs accept long cable runs from coax distribution, while the buffered outputs drive 75 ohm video loads directly. The per-channel programmable gain lets installers compensate for cable attenuation across the matrix, equalizing picture levels without manual trim pots. The wide 2.7 V to 5.5 V supply allows battery-backed operation during power events, preserving video routing during UPS transitions.
推荐
Medical Imaging Pipeline
In medical imaging equipment such as endoscopy carts or ultrasound preview monitors, the MAX9675ECQ+ routes multiple video sources (endoscope, ultrasound, room camera, auxiliary input) to multiple display outputs (main monitor, secondary monitor, recording unit). The 110 MHz bandwidth preserves diagnostic image fidelity, while the high-impedance power-up state protects sensitive imaging sensors from contention. Its 100-TQFP package supports standard reflow profiles compatible with medical-grade PCB assemblies.
推荐
Automotive Infotainment Video Backbone
For rear-seat entertainment and driver-assistance display systems, the MAX9675ECQ+ provides a 16x16 analog video matrix that can route DVD, camera, navigation, and console sources to multiple in-cabin displays. The 2.7 V to 5.5 V supply aligns with automotive 3.3 V and 5 V rails, and the BiCMOS process tolerates automotive temperature environments. Per-channel programmable gain compensates for harness losses across the vehicle, while the SPI/QSPI interface allows the head unit microcontroller to dynamically reroute video based on driver or passenger requests.
推荐
Test and Measurement Video Generator
In test equipment such as video signal generators, video analyzers, and A/V matrix testers, the MAX9675ECQ+ provides a flexible 16x16 routing fabric to switch test patterns, reference signals, and device-under-test outputs to measurement instruments. The 110 MHz bandwidth supports SD-SDI and high-bandwidth analog video measurements, while the SPI/QSPI interface enables automated test sequences to step through matrix configurations. The high-impedance power-up state prevents damage to sensitive measurement inputs during instrument calibration.
推荐
Professional Audio/Video Receiver Routing
In high-end A/V receivers and matrix amplifiers, the MAX9675ECQ+ provides 16x16 analog video routing between HDMI-converted legacy inputs (component, composite), multiple display outputs, and recording loops. The 110 MHz bandwidth handles component 1080i signals without artifacts, and the per-channel programmable gain equalizes cable losses in whole-house A/V installations. The SPI/QSPI interface enables remote control integration with home automation systems.
推荐
推荐产品汇总
工程参考数据： MAX9675ECQ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX9675ECQ+T | MAX9675ECQ+ | MAX4360EAX | MAX4357EUI |
|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | SSOP-36 | TSSOP-28 |
| Brand | Analog Devices / Maxim Integrated | Analog Devices - same brand | Analog Devices - same brand | Analog Devices - same brand | Analog Devices - same brand |
| Configuration | 16 x 16 nonblocking | 16 x 16 nonblocking - same | 16 x 16 nonblocking - same | 4 x 1 | 8 x 8 |
| RoHS Compliance | Compliant (lead-free) | Compliant - same | Compliant - same | Compliant | Compliant |
关键差异点
- High-density 16x16 nonblocking matrix in a single IC （对比 MAX4357EUI (8x8))
- Wide -3 dB bandwidth of 110 MHz （对比 MAX4360EAX (4x1 video multiplexer))
- Per-channel programmable gain （对比 MAX4360EAX (fixed gain))
- High-impedance output state at power-up （对比 MAX4357EUI (active at power-up))
设计说明
Use a solid ground plane on layer 2 directly under the 100-TQFP package to provide a low-inductance return path for the 16 buffered inputs and outputs. Place 0.1 uF ceramic decoupling capacitors on each VCC pin within 20 cm of the pin, plus a single 10 uF bulk capacitor near the chip's main VCC trace. Keep input/output traces matched to 75 ohm impedance when driving long cables.
AC-couple all 16 inputs and 16 outputs with 220 uF electrolytic capacitors in parallel with 0.1 uF ceramics to pass video baselines and block DC offset. Source-terminate each input with 75 ohms close to the IC pin to absorb reflections on long PCB traces. At the output, drive 75 ohm loads through series 75 ohm resistors or use active cable drivers (e.g., LMH6702) when driving more than 5 m of coax.
Do not apply signals to the inputs before VCC reaches 2.7 V or after VCC drops below 2.5 V - this can trigger input latch-up due to the BiCMOS process. Ensure the SPI/QSPI signals are quiet (no ringing) when CS transitions, since the MAX9675ECQ+ latches matrix updates on the CS rising edge. Never operate with VCC above 5.5 V, as the absolute maximum rating is 6 V per the datasheet.
The MAX9675ECQ+ consumes approximately 200-300 mW in a fully active 16x16 configuration. The 100-TQFP package has a theta_JA of approximately 35-40 C/W on a standard 4-layer JEDEC test PCB. Estimated: at 250 mW dissipation with no airflow, junction temperature rises 9-10 C above ambient. Ensure the application environment stays below the maximum junction temperature (typically 125 C for the E temperature grade).
Route the SPI/QSPI signals (CS, SCLK, DIN) on a separate layer from the analog video traces, with ground-strip isolation between them. Keep analog input and output traces on opposite sides of the IC to minimize crosstalk; use ground-fill moats around each channel when routing at 75 ohm. Place the bypass capacitors for each VCC pin on the same layer as the IC, never on the opposite side.
合规信息
RoHS compliant per Maxim Integrated product page. Not AEC-Q100 qualified - not intended for automotive safety-critical applications. The '+' suffix indicates lead-free RoHS-compliant packaging.
