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WM9090ECS/R データシート(PDF) 7 Page - Wolfson Microelectronics plc

部品番号 WM9090ECS/R
部品情報  Ultra Low Power Audio Subsystem
PDF  81 Pages
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メーカー  WOLFSON [Wolfson Microelectronics plc]
ホームページ  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9090ECS/R データシート(HTML) 7 Page - Wolfson Microelectronics plc

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Production Data
WM9090
w
PD, November 2010, Rev 4.1
7
ELECTRICAL CHARACTERISTICS
Test Conditions
SPKVDD = 3.6V, AVDD=1.8V, GND=0V, TA = +25
oC, 1kHz signal, PGA gain = 0dB unless otherwise stated
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue Input Pins
Maximum Full-Scale input signal
level - IN1P/N and IN2P/N
Single-ended input
1.0
Vrms
Differential input
1.0
Input Resistance
Differential or Single- Ended Mode
8
10
15
k
Ω
Input Programmable Gain Amplifiers (PGAs) IN1A, IN1B, IN2A and IN2B
Minimum Programmable Gain
-6
dB
Maximum Programmable Gain
+18
dB
Mute Attenuation
80
dB
Common Mode Rejection Ratio
Differential Mode (217Hz input)
45
dB
Output Programmable Gain Amplifiers (PGAs) SPKVOL, HPOUT1LVOL and HPOUT1RVOL
Minimum Programmable Gain
-57
dB
Maximum Programmable Gain
+6
dB
Programmable Gain Step Size
1
dB
Mute Attenuation
HPOUT1LVOL and HPOUT1RVOL
75
dB
SPKVOL
66
dB
Speaker Output Programmable Gain SPKOUTLBOOST
Programmable Gain
SPKOUTLBOOST=111
11.5
12
12.5
dB
SPKOUTLBOOST=110
8.5
9
9.5
SPKOUTLBOOST=101
7
7.5
8
SPKOUTLBOOST=100
5.5
6
6.5
SPKOUTLBOOST=011
4
4.5
5
SPKOUTLBOOST=010
2.5
3
3.5
SPKOUTLBOOST=001
1
1.5
2
SPKOUTLBOOST=000
-0.75
0
0.75
Headphone Driver Audio Performance (RL = 16
Ω)
SNR (A-weighted)
Path from IN1P/N or IN2P/N
90
96
dB
THD (PO=20mW)
-82
dB
THD+N (PO=20mW)
-80
-72
dB
THD (PO=5mW)
-81
dB
THD+N (PO=5mW)
-79
dB
Crosstalk (L/R)
72
dB
PSRR
AVDD with 100mVpk-pk at 217Hz (Note 1)
82
dB
SPKVDD with 100mVpk-pk at 217Hz
85
DC Offset
Magnitude after DC Servo calibration
0.3
2
mV
Output Power
0.1% THD+N
31
mW
1% THD+N
34
Minimum Headphone Resistance
Normal operation
15
Ω
Device survival with load indefinitely applied
1
Ω
Headphone Capacitance
2
nF
Quiescent Current
4
mA



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