This document describes the ADA4320-1 Rev. A upstream CATV line driver from Analog Devices, which supports low distortion, DOCSIS 3.0 specifications. It features 5V single-supply operation, programmable gain, low power modes, etc.
The ADA4320-1 is a high power, ultralow distortion amplifier designed for CATV reverse channel line driving, specifically for DOCSIS 3.0 and EuroDOCSIS 3.0-based applications. It supports CableLabs DOCSIS 3.0/2.0 and EuroDOCSIS 3.0/2.0 specifications for customer premises equipment (CPE) upstream transmission. The device features a 5 V single-supply operation and excellent adjacent channel rejection performance.
| Supply Voltage | 5 V |
|---|---|
| Operating Temperature Range | -40°C to +85°C |
| Gain Range | -27 dB to +32 dB |
| Adjacent Channel Power Ratio (ACPR) | -66 dBc (Single QPSK) |
| Quiescent Current (Max Gain) | 260 mA |
The gain is programmable in 1 dB steps over a range of -27 dB to +32 dB.
Yes, it supports CableLabs DOCSIS 3.0/2.0 and EuroDOCSIS 3.0/2.0 specifications.
The device draws 12 μA typical in the full power-down sleep mode.