Datasheet

Revision 3.1

05-Jan-2022

CFR0011-120-00-FM Rev 5

1 of 36

© 2022 Renesas Electronics

SC14WAMDECT SF

Wireless Audio Module

FINAL

General description

The SC14WAMDECT SF is a Cordless Audio Module

with an integrated baseband, radio transceiver, power

amplifier and crystal to be used in cordless microphone

applications in the DECT frequency band. This module

is intended for users with little or no DECT experience,

who wish to make a wireless audio system.

The module can be configured for various audio appli-

cations. A Public Address System has two portable

parts (PP) with two microphones and one fixed part

(FP) configured as a receiver and integrated into a

loudspeaker. Another application is a Tour Guide Sys-

tem where one a microphone (FP) broadcasts to up to

128 receivers (PP) with an integrated loudspeaker or a

headset connected. The SC14WAMDECT SF module

is suitable for both FP and PP usage: a hardware pin

selects the function of the module.

The SC14WAMDECT SF module is pre-approved for

use in all countries that use the DECT frequency band,

as well as the DECT 6.0 frequency band used in North

America.

Features



Pre-programmed and ready-to-use module



Antenna embedded, support for external antennas



High quality audio sampled at 25.6 kHz



Latency: 14.2 ms (PA mode), 18.3 ms (TG mode)



UART data transfer (up to 1 kbit/s) in TG mode



Access code for secure registration in TG mode



ETSI (DECT) and FCC (DECT 6.0) certified



Japan DECT (J-DECT) pre-certified



Supports 1.9 GHz and 1.7 GHz DECT bands



Receiver sensitivity < -93 dBm



Transmit power EU: 23 dBm, USA: 20 dBm,

JPN: 20 dBm



Power supply voltage: 2.1 V to 3.45 V



Supports NiMH and Alkaline batteries



Small form factor (19.6 mm x 18.0 mm x 2.7 mm)



Operating temperature range: -40 °C to +85 °C

Applications



Public Address System with one or two microphones

(transmitter) and one loudspeaker (receiver)



Tour Guide System with one microphone (transmit-

ter) and up to 128 headsets (receiver)

________________________________________________________________________________________________

System diagram

PP

FP

PP

PP

1 or 2 transmitters

Public Address System

PP

PP

1 to 128 receivers

Tour Guide System

FP

Receiver

Transmitter