Data Sheet

FSC-BT1006A Datasheet
Shenzhen Feasycom Technology Co.,Ltdwww.feasycom.com
-20-
Figure 8: LED Equivalent Circuit
If a known value of current is required throughthe LED to give a specific luminous intensity, then the value of R
LED
is
calculated.
ILED=
VDD-VF
RLED+RON
For the LED pads to act as resistance, the external series resistor, R
LED
, needs to be such that the voltage dropacross it,
V
R
, keeps V
PAD
below 0.5V.
VDD=V
F
+V
R
+V
PAD
Note:
The LED current adds to the overall current. Conservative LED selection extends battery life.
4.8Audio Interfaces
The audio interface circuit consists of:
Single analog microphone input or dual analog line inputs
Dual analogue audio outputs
1digital microphone inputs
1 configurable I
2
S interface
Configurable SPDIF input interface