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Description
Parameter
Output signal
V
CRS
crossover
voltage
FBUS interface electrical characteristics
Description
Parameter
High-level
V
IH
input voltage
Low-level
V
IL
Input voltage
High-level
V
OH
output
voltage
Low-level
V
OL
output
voltage
Rise/fall time
tR/tF
Headset hook detection interface (XMICN) electrical characteristics
Description
Min
Hook detection
1.25
threshold 1
Hook detection
0.5
threshold 2
Hook detection
hysteresis
Hook detection
1
pull ups
Audio signal electrical characteristics
Description
XMIC N
XMIC P
HSEAR N
Page 9–34
Min
1.3
Min
0.7 x V
DDSHV2
0
0.8 x V
DDSHV2
0
0
Typ
1.35
0.6
25
2
Parameter
Audio in
Audio in
Audio out
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Max
2
Max
V
DDSHV2
0.3 x V
DDSHV2
V
DDSHV2
0.22 x V
DDSHV2
25
(VDDSHV2 = 1.8V)
Max
1.45
0.7
4
Typ
1
1
1
Unit
V
Unit
Notes
V
Helen2/3 specific
V
V
V
ns
Unit
V
V
mV
uA
Unit
V
pp
V
pp
V
pp
RM-36
System Module
Notes
Notes
Two fixed
thresholds
inside Retu.
Selectable by
SW
Notes
DC Offset 2.5-2.78V
DC Offset 2.5-2.78V
10Ω nominal serial
impedance
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