Neoway Neo_M680, Hardware User'S Manual

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Neo_M680 GPRS Module Hardware User Guide
Copyright © Neoway Technology Co., Ltd 25
Figure 3-24 Reference design for receiver output
The maximum output power of SPKP/N is 0.8W@8Ω
.
Figure 3-25 Reference design for speaker output
Figure 3-26 shows a reference design for the earphone interface, through which a 16/32 Ω receiver can be
driven directly. You are advised to use large capacitors for C1 and C2 to ensure the low frequency response
of the audio signals.
GPRS Module
33 pF
33 pF
100 pF
RECN
RECP
Receiver@32
SPK@8?
GPRS Module
33 pF
33 pF
100 pF
SPKN
SPKP