Radicom Research Inc RB540 用户手册
21
Pin#
Pin Name
Type
Description
I/O Voltage range
45
LED1
O
LED1
Voh: 0.75 VDD – VDD
Vol: 0 – 0.125V
Vol: 0 – 0.125V
46
LED0
O
LED0
Voh: 0.75 VDD – VDD
Vol: 0 – 0.125V
Vol: 0 – 0.125V
47
MIC_BIAS
O
Microphone Bias
For best regulation limit current
between 0.32mA and 1.53mA
between 0.32mA and 1.53mA
48
MIC_R_P
I
Microphone Right Positive
Range: 0V ~ 1.5V
49
MIC_R_N
I
Microphone Right Negative
Range: 0V ~ 1.5V
50
MIC_L_N
I
Microphone Left Negative
Range: 0V ~ 1.5V
51
MIC_L_P
I
Microphone Left Positive
Range: 0V ~ 1.5V
52
SPK_R_P
O
Speaker Right Positive
Full scale swing (Differential):
750 mV rms
750 mV rms
53
SPK_R_N
O
Speaker Right Negative
Full scale swing (Differential):
750 mV rms
750 mV rms
54
SPK_L_N
O
Speaker Left Negative
Full scale swing (Differential):
750 mV rms
750 mV rms
55
SPK_L_P
O
Speaker Left Positive
Full scale swing (Differential):
750 mV rms
750 mV rms
56
GND
-
Ground
---
57
GND
-
Ground
---
58
GND
-
Ground
---
59
GND
-
Ground
---
60
GND
-
Ground
---
61
GND
-
Ground
---