Part A
ADV7180BCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 3675 件
- Package
- VFQFN-40
- Series
- 線性視頻處理
Replacement verdict
Not a drop-in replacement
The ADV7179BCPZ and ADV7180BCPZ are not functionally interchangeable: the ADV7179BCPZ is a video encoder with analog output, while the ADV7180BCPZ is a video decoder with digital output, so they serve opposite signal-chain roles and cannot be substituted in the same socket.
Different signal direction
Different output type
Different input interface
Different application role
Parts at a glance
Part B
ADV7179BCPZ
ADI公司
- Lifecycle
- Active
- Stock
- 1771 件
- Package
- VFQFN-40
- Series
- 介面-編碼器、解碼器、轉換器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADV7179BCPZ | ADV7180BCPZ | Why it matters |
|---|---|---|---|
| Function | Video encoder (DAC output) | Video decoder (ADC input) | These are opposite signal-path functions; one converts digital video to analog, the other converts analog video to digital, so they are not functionally interchangeable. |
| Signal direction | Digital input to analog output | Analog input to digital output | Determines whether the device sits at the transmit/display end or the receive/capture end of a video chain. |
| Integrated converters | Multiple video DACs | Multi-channel video ADC | The converter type defines the core signal-processing capability and cannot be substituted across encoder/decoder roles. |
| Primary output/input format | Composite, S-Video, component analog outputs | Digitized ITU-R BT.656 video output | Interface format compatibility with the surrounding system is essential for functional substitution. |
| Typical application role | Display/transmit side encoding | Capture/receive side decoding | Application role dictates which end of a video pipeline the part can serve. |
| Package | LFCSP | LFCSP | Package compatibility affects PCB footprint and assembly, though both share the same package family here. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent documentation and support, but does not imply interchangeability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADV7180BCPZ | ADV7179BCPZ |
|---|---|---|
| Part Status | Active | Active |
| Function | Decoder | - |
| Applications | Professional Video | Digital Cameras, Mobile Phones, Portable Video |
| Standards | ITU-R BT.656, NTSC, PAL, SECAM | - |
| Control Interface | I²C, Serial | - |
| Voltage - Supply | 1.8V ~ 3.3V | - |
| Mounting Type | Surface Mount | Surface Mount |
| Type | - | Video Encoder |
| Voltage - Supply, Analog | - | 2.8V, 3.3V |
Frequently asked questions
What are the primary functional differences between the ADV7179BCPZ and ADV7180BCPZ?
The ADV7179BCPZ is a video encoder that converts digital video data into analog composite, S-Video, or component video signals. The ADV7180BCPZ is a video decoder that converts analog video signals (NTSC, PAL, SECAM) into digital YCrCb or RGB data. They perform opposite signal conversion functions and are not interchangeable.
Do the ADV7179BCPZ and ADV7180BCPZ share the same package and pinout?
Both devices are offered in a 40-lead LFCSP (CP-40-1) package. However, their pin functions differ because one is an encoder and the other is a decoder. Pin-to-pin compatibility is not applicable, and each requires its own PCB layout per the respective datasheet.
What are the supply voltage requirements for the ADV7179BCPZ and ADV7180BCPZ?
The ADV7179BCPZ operates from a 2.5 V to 3.3 V digital supply and a 2.5 V to 3.3 V analog supply, with a separate 1.8 V to 3.3 V I/O supply. The ADV7180BCPZ operates from a 1.8 V digital core supply and a 3.3 V analog supply. Designers must verify exact rail requirements in the respective datasheets.
Can the ADV7179BCPZ and ADV7180BCPZ be used together in a single video system?
Yes. A common architecture uses the ADV7180BCPZ to digitize an incoming analog video signal and the ADV7179BCPZ to re-encode digital video back to analog output. They serve complementary roles in video capture and playback signal chains.
What digital video interfaces do these devices support?
The ADV7179BCPZ accepts digital video input via an ITU-R BT.656/601-compatible interface. The ADV7180BCPZ outputs digitized video in ITU-R BT.656/601 YCrCb format. Both use standard 8-bit or 16-bit digital video buses, but the data direction is opposite.
Are the ADV7179BCPZ and ADV7180BCPZ drop-in replacements for each other?
No. Because one is an encoder and the other is a decoder, they cannot replace each other functionally. Even though both use a 40-lead LFCSP package, the signal flow, pin functions, and external component requirements differ, so substitution requires a complete redesign of the video signal path.
What analog video standards does each device support?
The ADV7179BCPZ encoder supports NTSC, PAL, and SECAM output standards in composite, S-Video, and component formats. The ADV7180BCPZ decoder supports NTSC, PAL, and SECAM input standards with automatic standard detection. Both cover the major global analog video formats.