4. Usage Precautions
S1V30080 Series Evaluation Board User’s Guide
EPSON
27
(Rev. 1.00)
4. Usage Precautions
4.1 DIP switch definitions
Figures 4.1 and 4.2 show the DIP switch on/off states.
■
indicates the DIP switch position. DIP
switches are shorted to GND when on, and so are 0 when on and 1 when off.
Figure 4.1 DIP switch on (0)
Figure 4.2 DIP switch off (1)
4.2 Voice output pin precautions
The Cinderella voice output (connector CON5) is a differential output due to speaker amplifier IC
specifications. Care must be taken to avoid short-circuiting the voice output signal to other signals
(especially GND) when connecting devices, as this may damage the speaker amplifier IC.
In particular, avoid connecting devices with power supplies, such as PCs.
Figure 4.3 Device connection to voice output pin
1 2
"On" marker
SW No.
1 2
"On" marker
SW No.
VOUT +
VOUT -
A
B
Voice output signal
amplifier
VOUT+
VOUT-
VOUT-N
Evaluation board
CON5
2
1
Voice output cable
S1V30080
SOUND_OUT_P
IN+
SOUND_OUT_N
IN -