EG_GenLoc41e_1055_UG_003_UK
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
8.2.3.2 Loudspeaker
By default, the loudspeaker output is not active.
For more details, see the command AT+USPM. This output corresponds to SPK_P and
SPK_N of the documentation.
Characteristics of the output for the loudspeaker
If not precised, the parameters are measured in the frequency band 20 Hz,...,20 kHz.
Component
Value
C1, C2, C3
CAPACITOR 22pF
Speaker Output
Parameter/Conditions
Min
Typ
Max
Units
Maximum differential output
voltage
Overdrive Gain stage = +9 dB
7.8
V
PP
Common mode output voltage
1.6
V
Output load resistance
8
Ω
Single-ended output load
capacitance
10
nF
Inductive load
400
µH
Signal to noise
Load = 16 Ω,
Gain stage = +0 dB,
Input signal = 0 dBFS,
Code 0, A-weighted
70
80
dB
Signal to distortion (THD)
Load = 8 Ω, 350 mW
50
dB
Power supply rejection
1 kHz
60
dB