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WM8994ECS/R Datasheet(PDF) 18 Page - Cirrus Logic

Part # WM8994ECS/R
Description  Multi-channel Audio Hub CODEC for Smartphones
PDF  363 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8994ECS/R Datasheet(HTML) 18 Page - Cirrus Logic

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WM8994
18
Rev 4.6
OUTPUT DRIVER CHARACTERISTICS
Test Conditions
The following electrical characteristics are valid across the full range of recommended operating conditions.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Line Output Driver (LINEOUT1P, LINEOUT1N, LINEOUT2P, LINEOUT2N)
Load resistance
2
k
Ω
Load capacitance
Direct connection
100
pF
Connection via 1k
Ω series resistor
2000
Output discharge resistance
LINEOUTn_DISCH=1, VROI=0
8
k
Ω
LINEOUTn_DISCH=1, VROI=1,
LINEOUTn_ENA=0
500
Ω
Headphone Output Driver (HPOUT1L, HPOUT1R)
Load resistance
Normal operation
15
Ω
Device survival with load applied indefinitely
(see note 6)
100
m
Ω
Load capacitance
2
nF
DC offset across load
DC Servo complete
TBD
mV
Earpiece Output Driver (HPOUT2L, HPOUT2R)
Load resistance
15
Ω
Load capacitance
Direct connection
200
pF
DC offset across load
±5
mV
Speaker Output Driver (SPKOUTLP, SPKOUTLN, SPKOUTRP, SPKOUTRN)
Load resistance
Stereo Mode (SPKMODE=0), Class AB
8
Ω
Stereo Mode (SPKMODE=0), Class D
4
Mono Mode (SPKMODE=1)
4
DC offset across load
±5
mV
SPKVDD leakage current
Sum of ISPKVDD1 + ISPKVDD2
1
µA
Note 6: In typical applications, the PCB trace resistance, jack contact resistance and ESR of any series passive components (eg.
inductor or ferrite bead) are sufficient to provide this minimum resistance; additional series components are not required.



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