Overview
The AD8122ACPZ is a high-speed, triple differential receiver and equalizer designed by Analog Devices Inc. This component is specifically engineered to compensate for transmission losses in Unshielded Twisted Pair (UTP) cables up to 300 meters and coaxial cables up to 200 meters. It features adjustable control voltages to optimize cable compensation, making it ideal for various high-speed data transmission applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Supply Voltage | 4.5 to 5.5 | V |
| Operating Supply Current | 120 | mA |
| Minimum Operating Temperature | -40 | °C |
| Maximum Operating Temperature | +85 | °C |
| Package Type | 40-lead LFCSP | |
| Mounting Style | SMD/SMT | |
| Input Voltage | 4 | V |
| Length | 6 | mm |
| Width | 6 | mm |
| Height | 0.73 | mm |
| Number of Receivers | 3 | |
| Rise/Fall Time (2V step at 300m UTP) | 7 ns |
Key Features
- High-speed, triple differential receiver and equalizer for UTP and coaxial cables.
- Adjustable control voltages for high frequency peaking (VPEAK), broadband gain (VGAIN), output low-pass filter cutoff (VFILTER), and output offset adjustment (VOFFSET).
- Selectable gain of 1 or 2 for each channel.
- High impedance differential inputs with high rejection of common-mode signals.
- On-chip comparators with hysteresis for common-mode sync pulse extraction.
- Low output offset voltage: ±4 mV at G = 1.
- Operates over an extended temperature range of -40°C to +85°C.
Applications
- Keyboard-Video-Mouse (KVM) systems.
- Digital signage.
- RGB video over UTP cables.
- Professional video projection and distribution.
- HD video and security video systems.
Q & A
- What is the primary function of the AD8122ACPZ?
The AD8122ACPZ is a high-speed, triple differential receiver and equalizer designed to compensate for transmission losses in UTP and coaxial cables.
- What are the adjustable control voltages available on the AD8122ACPZ?
The AD8122ACPZ features adjustable control voltages for high frequency peaking (VPEAK), broadband gain (VGAIN), output low-pass filter cutoff (VFILTER), and output offset adjustment (VOFFSET).
- What is the operating temperature range of the AD8122ACPZ?
The AD8122ACPZ operates over an extended temperature range of -40°C to +85°C.
- What types of cables can the AD8122ACPZ compensate for?
The AD8122ACPZ can compensate for losses in Unshielded Twisted Pair (UTP) cables up to 300 meters and coaxial cables up to 200 meters.
- What is the package type of the AD8122ACPZ?
The AD8122ACPZ is available in a 40-lead LFCSP package.
- What are some common applications of the AD8122ACPZ?
Common applications include KVM systems, digital signage, RGB video over UTP cables, professional video projection and distribution, and HD video and security video systems.
- Does the AD8122ACPZ have on-chip comparators?
Yes, the AD8122ACPZ includes two on-chip comparators with hysteresis for common-mode sync pulse extraction.
- What is the typical rise/fall time of the AD8122ACPZ for a 2V step at 300 meters of UTP cable?
The typical rise/fall time is 7 ns for a 2V step at 300 meters of UTP cable.
- Can the gain of each channel be adjusted on the AD8122ACPZ?
Yes, the gain of each channel can be set to 1 or 2 using the associated gain control pin.
- Is the AD8122ACPZ suitable for dc-coupled systems?
Yes, the AD8122ACPZ is suitable for dc-coupled systems and features an output offset adjustment control (VOFFSET) to adjust the dc output level.
