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WM8994ECS/R Datenblatt(PDF) 29 Page - Cirrus Logic

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

WM8994ECS/R Datenblatt(HTML) 29 Page - Cirrus Logic

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WM8994
Rev 4.6
29
MISCELLANEOUS CHARACTERISTICS
Test Conditions
AVDD1=3.0V (powered from LDO1), DCVDD=1.0V (powered from LDO2), AVDD2=DBVDD=LDO2VDD=CPVDD=1.8V,
LDO1VDD=SPKVDD1=SPKVDD2=5V, DGND=AGND=CPGND=SPKGND1=SPKGND2=HP2GND=0V,
TA = +25
oC, unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue Reference Levels
H1
VMID Midrail Reference Voltage
VMID_SEL = 01,
4.7
F capacitor on VMIDC
-3%
AVDD1/2
+3%
V
VMID Start-Up time
VMID_SEL = 01,
VMID_RAMP = 11,
4.7
F capacitor on VMIDC
50
ms
Frequency Locked Loops (FLLs)
H29
Lock time
FREF=32kHz,
FOUT=12.288MHz
2.5
ms
FREF=12MHz,
FOUT=12.288MHz
300
s
H30
Free-running mode start-up time
VMID enabled
100
s
H31
Free-running mode frequency accuracy
Reference supplied initially
+/-10
%
No reference provided
+/-30
%
LDO Regulators
H38
LDO1 Start-Up Time
4.7
F capacitor on AVDD1,
1
F capacitor on VREFC
1.5
ms
LDO1 Drop-Out voltage
(LDO1VDD - AVDD1)
300
mV
LDO1 PSRR (LDO1VDD)
100mV (pk-pk) 217Hz
TBD
dB
H42
LDO2 Start-Up Time
1
F capacitor on DCVDD,
1
F capacitor on VREFC
1.5
ms
LDO2 PSRR (LDO2VDD)
100mV (pk-pk) 217Hz
TBD
dB



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