Data Sheet

FSC-BT958 Datasheet
Shenzhen Feasycom Technology Co., Ltd www.feasycom.com
-11-
Noise Floor
Aduio PA on A-WT
Crosstalk
100Hz,1Vrms Output
Crosstalk
1KHz,1Vrms Output
Crosstalk
10KHz,1Vrms Output
DNR
A-Weight,32Ω
(a) SNR is the ratio of output level with a 1-kHz full-scale input, to the output level playing an all-zero signal, measured
A-weighted over a 20-Hz to 20-kHz bandwidth.
(b) The BES2300-L provides a digital noise gate function for each of the output signal paths. The noise gate ensures best
noise performance when the signal path is idle. When the noise gate is enabled, and the applicable signal level is below
the noise gate threshold, then the noise gate is activated, causing the signal path to be muted.
Table 7: Codec - Analogue to Digital Converter under 1.95V
Parameter
Condition
Min
Type
Max
Unit
Resolution
24
Bits
Output Sample Rete, Fsample
8
384
kHz
SNR
fin=1kHz
B/W=20Hz~20kHz
A-Weighted 0.7Vrms
Input
Fsample
48kHz
100
dB
THD+N
fin=1kHz
B/W=20Hz~20KHz
1Vrms Output
Fsample
48kHz
-95
dB
Digital Gain
Digital Gain Resolution = 1dB
-30
30
dB
Analogue Gain
Analogue Gain Resolution = 3dB
-9
12
dB
6. MSL & ESD
Table 8: MSL and ESD
Parameter
Value
MSL grade:
MSL 3
ESD grade:
Human Body Model: Class-2
Machine Model: Class-B
7. RECOMMENDED TEMPERATURE REFLOW PROFILE
Prior to any reflow, it is important to ensure the modules were packaged to prevent moisture absorption. New packages
contain desiccate (to absorb moisture) and a humidity indicator card to display the level maintained during storage and
shipment. If directed to bake units on the card, please check the below next table and follow instructions specified by
IPC/JEDEC J-STD-033.
Note: The shipping tray cannot be heated above 65°C. If baking is required at the higher temperatures displayed in the
below next table, the modules must be removed from the shipping tray.
Any modules not manufactured before exceeding their floor life should be re-packaged with fresh desiccate and a new
humidity indicator card. Floor life for MSL (Moisture Sensitivity Level) 3 devices is 168 hours in ambient environment