AD8120ACPZ-R7

GENERAL 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.

FEATURES

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
Low output offset
±30 mV RTI
No external circuitry required to correct for offsets
Independent red, green, and blue delay controls
Drives 4 double-terminated video loads
Digital and analog delay control
6-bit SPI bus
I2C bus
Analog voltage control
Fixed gain of 2
Low noise
High differential input impedance: 500 kΩ
32-lead, 5 mm × 5 mm LFCSP

APPLICATIONS

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