Quectel UG96 Audio Design Guide

GSM/GPRS Modules
GSM Module Audio Design Guide
GSM Module Audo Design Guide Confidential/Release 17 / 35
SPK2P
AGND
Differential layout
10pF
33pF
Close to speaker
ESD
Module
22uF
GND
Figure 13：SPK Reference Circuit for AOUT2
SPK2P
AGND
Differential
layout
Amplifier
circuit
10pF
10pF
33pF
33pF
Close to speaker
ESD
ESD
Module
C2
C1
GND
GND
Figure 14：SPK Reference Circuit with audio power amplifier for AOUT2
TPA6205A1 from TEXAS INSTRUMENTS is recommended, which is a audio power amplifier device and
can driver a 8Ω speaker impedance.
Note
Quectel
Confidential

Quectel UG96 Specifications

General

Brand	Quectel
Model	UG96
Category	Control Unit
Language	English