SC1894
Analog Devices
This document provides the information necessary to develop the host software to communicate with the SC1894 by way of the Serial Peripheral Interface (SPI).
Design DocumentAnalog
SC1894 Serial Peripheral Interface Programming Guide
A technical guide for developing host software to communicate with the Analog Devices SC1894 linearizer using the Serial Peripheral Interface (SPI).
Overview
This programming guide provides detailed instructions for implementing SPI communication between a host processor and the SC1894 adaptive digital pre-distortion (ADPD) linearizer. It covers hardware interface requirements, including SPI bus configuration and pin functions for LOADENB and RESETN. The document details the message protocol for 4-byte communications, scratch memory access, and EEPROM reprogramming. Additional sections provide procedures for Power Measurement Unit (PMU) calibration, frequency range configuration, wideband optimization, and debug features such as spectrum reporting (SEM/PSD) and internal temperature sensing.
Use Cases
- Developing host software for SC1894 control
- Configuring RF linearizer parameters via SPI
- Reprogramming SC1894 EEPROM for custom frequency ranges
- Implementing PMU calibration in RF power amplifiers
- Monitoring spectrum emission mask (SEM) and CCDF parameters
Topics
SC1894
Analog Devices
SPI
Serial Peripheral Interface
Programming Guide
EEPROM
PMU
Linearizer
Digital Pre-Distortion
Host Communication
Referenced Parts
25A512
Microchip
7. Microchip 25A512 Data Sheet
25A512
Microchip
See Microchip 25A512 data sheet [7] for additional details on transactions with the internal EEPROM.
25A512
Microchip
See Microchip 25A512 data sheet for additional details on the EEPROM inside the SC1894.
RFFB_MAX_40us
Maxim
04B 16-bit R RFIN_MAX_40us RFFB_MAX_40us Maximum value over 40μs measurement
RFFB_MAX_40us
Maxim
047 16-bit R RFFB_MAX_40us RFFB_MAX_40us Maximum value over 40μs measurement
| SC1894 | Analog Devices | This document provides the information necessary to develop the host software to communicate with the SC1894 by way of the Serial Peripheral Interface (SPI). |
| 25A512 | Microchip | 7. Microchip 25A512 Data Sheet |
| 25A512 | Microchip | See Microchip 25A512 data sheet [7] for additional details on transactions with the internal EEPROM. |
| 25A512 | Microchip | See Microchip 25A512 data sheet for additional details on the EEPROM inside the SC1894. |
| RFFB_MAX_40us | Maxim | 04B 16-bit R RFIN_MAX_40us RFFB_MAX_40us Maximum value over 40μs measurement |
| RFFB_MAX_40us | Maxim | 047 16-bit R RFFB_MAX_40us RFFB_MAX_40us Maximum value over 40μs measurement |