Data Sheet
Table Of Contents
- Datasheet
- Preface
- About this Datasheet
- Product Overview
- Physical Characteristics
- Signals and Pins
- Acronyms
- PCB Layout Rules
PRODUCT OVERVIEW
PRODUCT FEATURES
5 PROPRIETARY CB410L DATASHEET
SEQUANS Communications
1.1.2 TDM-PCM Interface Specification
The features of the CB410L’s TDM-PCM controller include:
• Support of PCM slave mode with PCM_CLK input and PCM_FS input.
• Support of PCM master mode with with PCM_CLK input and PCM_FS
output generated internally
• PCM_CLK input frequency from 128 kHz to 8192 kHz
• Variable number of time-slots within a frame depending on PCM_CLK
frequency
• Support of PCM data format of 8-bits or 16-bits
• In master mode, SQN3220 can generate other Frame Sync periods than the
standard Frame Sync period (125 µs).
• Support of short and long Frame Sync formats (active for 1 or 3 PCM_CLK
periods)
• Separated programmable time-slot-offset value for Tx and Rx, for each
voice channel.
Sequans PCM interface takes PCM_CLK as an input in both master and slave
modes. It supports a set of different frequencies, in the range 128 kHz to 8192
kHz.
Caution: This clock signal is an input in both master and slave modes.
The signals implementing the PCM interface are detailed in I2S/PCM Interface
Signals.