ADV7202KSTZ - 54 MHz Video Codec | Analog Devices | LQFP-64
料号： ADV7202KSTZ ✓ 量产中ADV7202KSTZ 概述
A video codec is an interface IC that converts analog composite video into digital video samples and converts digital video back into analog output signals. This codec belongs to the broader ADC/DAC and video-interface hierarchy within integrated circuits. It combines a multi-channel video digitizer, four reconstruction DACs, analog clamp control and programmable gain control in one device, reducing the number of separate converters required by a video processing system.
The main features include four 10-bit video DACs, 12-bit video digitization with two bits assigned to gain and offset adjustment, a 54 MHz conversion rate, and AGC control with a 6 dB range. The auxiliary SAR ADC can sample as many as eight inputs at 843 kHz for monitoring functions. A three-channel clamp control supports the composite-video front end, while five CVBS inputs allow multi-source conversion in professional and industrial video equipment.
The ADV7202 architecture is intended for simultaneous conversion of several composite video channels. Its 12-bit ADC front end provides greater nominal resolution than the 10-bit output DACs, while AGC and clamp control help normalize signal level and remove video pedestal offsets. The four DACs support standard video output formats, allowing digitized channels to be processed and reconstructed without requiring four separate output converter packages.
Typical uses include video surveillance systems, broadcast and professional video monitoring, industrial inspection equipment, video routers, security-camera interfaces and multichannel analog-video test systems. Simultaneous conversion is particularly useful when multiple composite sources must be captured at the same time for switching, recording, analysis or frame synchronization.
PCB design should preserve short analog traces, provide stable analog and digital supplies, and place decoupling capacitors close to the relevant supply pins. Keep high-speed digital and analog-video return paths away from sensitive input traces, follow the reference-layout guidance in the manufacturer datasheet, and use controlled-length clock and serial-interface routing. Decoupling requirements, clock topology and unused-pin handling should be implemented exactly as specified in the datasheet pin-description table.
This page consolidates the Analog Devices product information, exact package and conversion details, a verified same-family replacement candidate, and practical interface-layout guidance into a focused engineering reference for evaluating the ADV7202KSTZ in composite-video and multichannel monitoring designs.
直接替换替代料： ADV7202KSTZ ——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： ADV7202KSTZ （相同外形与封装尺寸） ——差异在于 Package.
ADV7202KST
✅ 直接替换联系询价
查看数据手册 →ADV7202KSTZ 最大额定值与电气特性
| Device Type | Simultaneous-sampling video-rate codec |
| Video ADC Count | 1 ADC |
| Video DAC Count | 4 DACs |
| ADC Resolution | 12 bits |
| DAC Resolution | 10 bits |
| Video Conversion Rate | 54 MHz |
| Auxiliary ADC Conversion Rate | 843 kHz |
| Auxiliary Input Count | Up to 8 inputs |
| Video Input Support | Up to 5 NTSC, PAL, or SECAM composite inputs |
| DAC Output Formats | 4:2:2, YCrCb, and RGB I/P |
| AGC Control Range | 6 dB |
| Clamp Channels | 3 channels |
| 电源电压 | 5 V |
| Supply Voltage Range | 4.75 V to 5.25 V |
| 工作温度范围 | 0 °C to 70 °C |
| 封装 | 64-lead LQFP, 10 mm × 10 mm |
| 安装类型 | Surface mount |
ADV7202KSTZ 64-lead lqfp, 10 mm × 10 mm 引脚配置指南
ADV7202KSTZ（64-lead lqfp, 10 mm × 10 mm 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： ADV7202KSTZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADV7202KSTZ 适用于 6 应用s: Video Surveillance Multiplexing, Professional Video Monitoring, Broadcast Video Routing, Industrial Video Inspection, Video Security and Access Control, Analog Video Test Equipment.
Video Surveillance Multiplexing
The ADV7202KSTZ fits surveillance systems that must digitize several composite camera feeds while also presenting reconstructed analog outputs. Its five-channel composite-video capability supports NTSC, PAL and SECAM sources, while the 54 MHz conversion rate enables simultaneous video-rate sampling. Four 10-bit DACs can provide processed or monitored outputs in 4:2:2, YCrCb or RGB I/P formats. The three-channel clamp control and 6 dB AGC function help condition video inputs, but camera-level differences still require careful gain adjustment. A practical implementation places the codec close to the video connectors, keeps analog traces short and routes digital processing outputs away from the analog input region.
推荐
Professional Video Monitoring
Professional monitoring systems benefit from the ADV7202KSTZ because one device can sample multiple composite sources and provide four independent video DAC outputs. The 12-bit digitizer can preserve detail for processing, while the 54 MHz conversion rate supports simultaneous operation across active channels. Four 10-bit DACs are useful when operators or downstream equipment require analog reconstructed video alongside a digital processing path. The design must account for the 4.75 V to 5.25 V supply requirement, configure the 843 kHz auxiliary ADC for monitoring functions and preserve separation between video inputs and digital interfaces. Independent output filtering and grounding should follow the manufacturer reference layout.
推荐
Broadcast Video Routing
The ADV7202KSTZ can serve as the conversion stage in a compact composite-video router that must digitize incoming sources and reconstruct selected outputs. Up to five NTSC, PAL or SECAM inputs provide flexible source capture, while four DACs support parallel output monitoring. Simultaneous 54 MHz sampling supports coherent processing of multiple channels, which is useful when frame-level comparisons or controlled switching are required. The auxiliary SAR ADC can monitor up to eight system signals at 843 kHz for status detection. Designers should verify clock synchronization, supported digital interface modes and output timing in the datasheet, then isolate high-speed digital routing from the analog video section to minimize crosstalk.
推荐
Industrial Video Inspection
The ADV7202KSTZ is suitable for industrial inspection equipment that accepts composite video from cameras or test fixtures and needs repeatable digitization. The nominal 12-bit ADC provides useful signal headroom, with two bits allocated to gain and offset adjustment, while 6 dB AGC control and three-channel clamp control assist with source variation. Simultaneous sampling of up to five channels can support multiple inspection views, and the four DACs allow immediate analog review during setup or fault diagnosis. Because industrial systems can introduce ground offsets and noisy cables, use controlled grounding, input protection and filtering, and validate the AGC and clamp settings against the actual camera signal characteristics.
推荐
Video Security and Access Control
The ADV7202KSTZ can support security installations that need simultaneous composite-video capture from several cameras alongside auxiliary status monitoring. Five composite inputs and eight auxiliary ADC channels provide a compact path for digitizing camera imagery and sampling sensors or system alarms. The 54 MHz digitizer supports video-rate acquisition, while four 10-bit DACs can feed local analog displays or downstream legacy equipment. An access-control controller can use the digital video path while separately monitoring auxiliary lines through the 843 kHz SAR ADC. Keep the codec's analog section away from switching power stages and digital interfaces, and use the manufacturer's recommended supply decoupling and reference-layout patterns.
推荐
Analog Video Test Equipment
The ADV7202KSTZ is useful in bench and production test systems that convert composite-video sources into digital data and reconstruct four analog outputs. The 12-bit ADC and 54 MHz conversion rate allow waveform capture and signal analysis, while the four DACs can provide reference or comparison images. The auxiliary SAR ADC, operating at 843 kHz with as many as eight inputs, can monitor test fixtures and support automated status checks. For accurate measurements, use a controlled reference source, verify gain and offset behavior, and isolate the analog front end from digital equipment noise. The 5 V supply and 0 °C to 70 °C operating range must also be considered when defining the test system envelope.
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推荐产品汇总
工程参考数据： ADV7202KSTZ ——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 | ADV7202KST |
|---|---|---|
| Package | LQFP-64 (10 mm × 10 mm) | LQFP-64 (10 mm × 10 mm) |
| Brand | Analog Devices | Analog Devices |
| Device Type | Simultaneous-sampling video-rate codec | Video codec |
| Video ADC Count | 1 ADC | 1 ADC |
| Video DAC Count | 4 DACs | 4 DACs |
| ADC Resolution | 12 bits | 12 bits |
| DAC Resolution | 10 bits | 10 bits |
| Video Conversion Rate | 54 MHz | 54 MHz |
| Auxiliary ADC Rate | 843 kHz | 843 kHz |
| Composite Video Inputs | Up to 5 NTSC, PAL, or SECAM inputs | Up to 5 NTSC, PAL, or SECAM inputs |
| Supply Voltage | 5 V; 4.75 V to 5.25 V operating range | 5 V; 4.75 V to 5.25 V operating range |
关键差异点
- Integrated multichannel analog-video conversion （对比 ADV7202KST)
- Five composite-video inputs plus auxiliary monitoring （对比 ADV7202KST)
- Built-in analog front-end conditioning （对比 ADV7202KST)
设计说明
Place the codec close to the composite-video connectors and preserve short, controlled-impedance analog input routes. Keep the video input section away from digital clock, serial-data and switching-supply traces. Use a continuous ground reference beneath the analog section and route analog and digital return currents without sharing narrow paths. Apply the reference-layout pattern in the Analog Devices datasheet, including its recommended capacitor placement and exposed-pad connection method.
Do not treat all 12 ADC bits as independent image-data bits: the manufacturer states that two bits are used for gain and offset adjustment. Configure AGC and clamp behavior for the actual composite-video source because an incorrect range can consume dynamic range or alter the black level. Validate signal amplitude, synchronization and channel assignment at the module or board level rather than assuming identical behavior across different cameras.
The codec operates from a nominal 5 V supply with a stated range of 4.75 V to 5.25 V. Place the required bypass and bulk capacitors directly at the supply pins with short return paths, and keep switching-regulator output loops away from the analog-video section. Review ripple, ground bounce and supply sequencing in the complete board design; the numeric decoupling network and power-up behavior should follow the manufacturer application guidance.
Clock quality is critical for simultaneous video conversion. Route clock signals over continuous reference planes, avoid unnecessary stubs and test points, and confirm source amplitude, load and termination against the datasheet. Maintain controlled spacing between high-speed digital interfaces and the composite inputs to reduce crosstalk, and verify output timing and video synchronization across all active DAC channels before production.
合规信息
The ordering suffix may indicate a lead-free finish, but the available information does not explicitly establish RoHS, REACH, lead-free, halogen-free or conflict-minerals status. The operating-temperature range of 0 °C to 70 °C indicates that the device is not presented as an automotive-qualified AEC-Q100 option.
