User Manual

Bluetooth Audio Module
Ehong Technology Co., Ltd
100ms, PCM
Slave
eSCO
Setting S3, sniff =
100ms, mono audio
codec
2EV3
8.2
mA
Slave
eSCO
Setting S3, sniff =
100ms, mono audio
codec
3EV3
7.9
mA
Table 3: Power consumptions
Note :
Current consumption values are taken with:
■
Firmware ID = 7919
■
RF TX power set to 0dBm
■
No RF retransmissions in case of eSCO
■
Audio gateway transmits silence when SCO/eSCO channel is open
■
LEDs disconnected
■
AFH off
4.4. Input/output Terminal Characteristics
4.4.1. Digital Terminals
Digital Terminals
Min
Type
Max
Unit
Input Voltage
V
IL
input logic level low
-
0.4
-
0.4
V
V
IH
input logic level high
0.7 x VDD
-
VDD + 0.4
V
Tr/Tf
-
-
25
ns
Output Voltage
V
OL
output logic level low, l
OL
= 4.0mA
-
-
0.4
V
V
OH
output logic level high, l
OH
= -4.0mA
0.75 X
VDD
-
-
V
Tr/Tf
-
-
5
ns
Input and Tristate Currents
Strong pull-up
-150
-40
-10
μA
Strong pull-down
10
40
150
μA
Weak pull-up
-5
-1.0
-0.33
μA
Weak pull-down
0.33
1.0
5.0
μA
C
I
Input Capacitance
1.0
-
5.0
pF