Part Number : AD8120

Function : Triple Skew-Compensating Video Delay Line with Analog and Digital Control

Package : 32-lead, 5 mm × 5 mm LFCSP Type

Maker : Analog Devices

Pinouts :
AD8120 datasheet

Description :

The AD8120 is a triple broadband skew-compensating delay line that corrects for time mismatch between video signals incurred by transmission in unshielded twisted pairs of Category 5 and Category 6 type cables.

Skew between the individual pairs exists in most types of multipair UTP cables due to the different twist rates that are used for each pair to minimize crosstalk between pairs. For this reason, some pairs are longer than others, and in long cables, the difference in propagation time between two pairs can be well into the tens of nanoseconds.

The device contains three delay paths that provide broadband delays up to 50 ns, in 0.8 ns increments, using 64 digital control steps or analog control adjustment. The delay technique used in the IC minimizes noise and offset at the outputs. The bandwidth of the device ranges from 150 MHz to 200 MHz, depending on the delay setting. This wide bandwidth makes the AD8120 ideal for use in applications that receive high resolution video over UTP cables.


* Corrects for unshielded twisted pair (UTP) cable skew
* Delay of up to 50 ns per channel
* High speed
200 MHz BW @ VOUT = 1.4 V p-p and 0 ns delay
150 MHz BW @ VOUT = 1.4 V p-p and 50 ns delay
* Excellent channel-to-channel matching
* 30 mV offset matching RTI
* 0.8% gain matching
* Independent red, green, and blue delay controls
* Drives 4 double-terminated video loads
* Digital and analog delay control
* 6-bit SPI busI2C bus
* Analog voltage control
* High differential input impedance: 500 kΩ


* Keyboard-video-mouse (KVM)
* Digital signage
* RGB video over UTP cable
* Professional video projection and distribution
* HD video
* Security video
* General broadband delay lines

Datasheet PDF Download :
AD8120 pdf

Others datasheet of same file :


2021/05/18 15:44 2021/05/18 15:44