Data Sheet

Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
- 3 -
1.4. Electric Parameter
Name
Mark
Condition
Mini.
value
Typica
l value
Max.
value
Unit
VDD50
LDO input voltage
-
3.0
5.0
5.5
V
VDD33
LDO 3.3V output current
Vout3.3>3.1V
-
-
150
mA
Quiescent
current
Current under no load
Non-loaded
-
30
-
mA
Working
current
Current in playing state
8R/1W speaker, 32-level
volume.
-
390
-
mA
SNR
Signal-to-noise ratio
-
-
92
-
dB
THD+N
Total harmonic distortion
No load
-
-70
-
dB
PWRAB
DAC output power
32 ohm speaker
-
-
16
mW
VPP
DAC maximum output voltage
swing
10K ohm load
-
-
2.8
V
Ps1
Standby power consumption
(with micro SD card)
Related to the micro SD
card power consumption
-
27.6
-
Ma
P
Playing power consumption
(no load)
Related to the micro SD
card power consumption
-
28.7
-
Ma
VPPLINE
External audio input swing
-
-
2.8
V
1.5. Function development for reference
If the following standard function can not meet your needs, we can develop some of customized
functions. For customized function development, please list out the required functions, and send to us.
The following are some common functions.
1. Increase the number of keys and the corresponding key functions. For example, increase 3 keys
one-to-one function, increase cycle key, etc..
2. Change the default control mode. For example, chip start loop playback with power on.
3. Increase the status of LED light. For example, add 2 LED lights; when playing the first voice, the first
light will be on; when playing the second voice, the second light will be on.
4. Add some commands. For example, add the delete command or formatting instructions.