Bluetooth Audio Module
Ehong Technology Co., Ltd
SNR
2 (20kHz max)
A-Weighted
THD+N < 0.1%
1.6Vpk-pk input
32kHz
-
92
-
dB
44.1kHz
-
92
-
dB
48kHz
-
92
-
dB
THD+N
fin = 1kHz
B/W =
20Hz
→Fsample/
2 (20kHz max)
1.6Vpk-pk input
Fsample
8kHz
-
0.004
-
%
48kHz
-
0.008
-
%
Digital gain
Digital gain resolution = 1/32
-24
-
21.5
dB
Analogue gain
Pre-amplifier setting = 0dB,
9dB, 21dB or
30dB
Analogue setting = -3dB to
12dB in 3dB
steps
-
3
-
42
dB
Stereo separation (crosstalk)
-
-89
-
dB
Table 6: Analogue to Digital Converter
4.4.4. Internal CODEC Digital to Analogue Converter
Digital to Analogue Converter
Parameter
Conditions
Min
Type
Max
Unit
Resolution
-
-
-
16
Bit
s
Output Sample
Rate, Fsample
-
8
-
96
kHz
SNR
fin = 1kHz
B/W =
20H
z→20kHz
A-Weighted
THD+N < 0.01%
0dBFS input
Fsample
Load
48kHz
100kΩ
-
96
-
dB
48kHz
32Ω
-
96
-
dB
48kHz
16Ω
-
96
-
dB
THD+N
fin = 1kHz
B/W =
20H
z→20kHz
0dBFS input
Fsample
Load
8kHz
100kΩ
-
0.002
-
%
8kHz
32Ω
-
0.002
-
%
8kHz
16Ω
-
0.003
-
%
48kHz
100kΩ
-
0.003
-
%
48kHz
32Ω
-
0.003
-
%
