User's Manual

BM90SPKA5MG7
Version: 1.01 - 13 - 6/26/2014
Audio Codec: ADC (MIC PATH/Line-in path)
Test Condition:
T= 25
o
C, V
DD
=2.8V, 1KHz sine wave input, Bandwidth = 20~20KHz
Parameter Condition Min. Typ. Max. Unit
Input full-scale Full scale (line-in) 2.2 Vpp
Resolution 16 bits
Input Sampling Rate 8 48 kHz
SNR f
in
=1KHz
B/W=20~20KHz
A-weighted
THD+N < 1%
150mVpp input
8KHz 85
dB
16KHz 85
32KHz 85
44.1KHz 85
48KHz 85
SNR A-weighted 1KHz@full scale,
Microphone boost enable
75 dB
THD+N (Mic input)
@30mVrms input
0.04 %
THD+N (line input) 0.01 %
Mic Boost Gain 20 dB
Digital Gain -54 4.85 dB
Analog Gain 26 dB
Digital Gain Step 6 dB
Analog Gain Step 1.7 dB
Input impedance
(microphone mode)
Input impedance 6 10
KΩ
Input capacitance 20 pF
Analog supply voltage
(AVDD)
1.8 2.8 3.0 V