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WM8510 데이터시트(PDF) 6 Page - Wolfson Microelectronics plc

부품명 WM8510
상세설명  MONO CODEC WITH SPEAKER DRIVER
PDF  56 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8510 데이터시트(HTML) 6 Page - Wolfson Microelectronics plc

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WM8510
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PP Rev 1.2 December 2004
6
ELECTRICAL CHARACTERISTICS
Test Conditions
DCVDD = 1.62V, AVDD = DBVDD = 3.3V, SPKVDD = 3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless
otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Microphone Inputs (MICN, MICP)
Full-scale Input Signal Level
(Note 1) – note this changes
with AVDD
VINFS
PGABOOST = 0dB
INPPGAVOL = 0dB
1.0
0
Vrms
dBV
Mic PGA equivalent input noise
At 35.25dB
gain
TBD
uV
Input resistance
RMICIN
Gain set to 35.25dB
1.6
k
Ω
Input resistance
RMICIN
Gain set to 0dB
47
k
Ω
Input resistance
RMICIN
Gain set to -12dB
75
k
Ω
Input resistance
RMICIP
MICP2INPPGA = 1
94
k
Ω
Input resistance
RMICIP
MICP2INPPGA = 0
TBD
k
Ω
Input Capacitance
CMICIN
10
pF
Recommended coupling cap
CCOUP
220
uF
MIC Input Programmable Gain Amplifier (PGA)
Programmable Gain
-12
35.25
dB
Programmable Gain Step Size
Guaranteed monotonic
0.75
dB
Mute Attenuation
TBD
dB
Selectable Input Gain Boost (0/+20dB)
Gain Boost
0
20
dB
Automatic Level Control (ALC)/Limiter – ADC only
Target Record Level
-28.5
-6
dB
Programmable Gain
-12
35.25
dB
Programmable Gain Step Size
Guaranteed Monotonic
0.75
dB
Gain Hold Time (Note 2)
tHOLD
MCLK=12.288MHz
(Note 4)
0, 2.67, 5.33, 10.67, … , 43691
(time doubles with each step)
ms
ALCMODE=0 (ALC),
MCLK=12.288MHz
(Note 4)
3.3, 6.6, 13.1, … , 3360
(time doubles with each step)
Gain Ramp-Up (Decay) Time
(Note 3)
tDCY
ALCMODE=1 (limiter),
MCLK=12.288MHz
(Note 4)
0.73, 1.45, 2.91, … , 744
(time doubles with each step)
ms
ALCMODE=0 (ALC),
MCLK=12.288MHz
(Note 4)
0.83, 1.66, 3.33, … , 852
(time doubles with each step)
Gain Ramp-Down (Attack) Time
(Note 3)
tATK
ALCMODE=1 (limiter),
MCLK=12.288MHz
(Note 4)
0.18, 0.36, 0.73, … , 186
(time doubles with each step)
ms
Mute Attenuation
TBD
dB
Analogue to Digital Converter (ADC)
Signal to Noise Ratio (Note 5, 6)
A-weighted, 0dB gain
90
dB
Total Harmonic Distortion
(Note 7)
full-scale, 0dB gain
-80
dB



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