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WM8988 Scheda tecnica(PDF) 8 Page - Wolfson Microelectronics plc

Il numero della parte WM8988
Spiegazioni elettronici  Stereo CODEC for Portable Audio Applications
PDF  56 Pages
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Produttore elettronici  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8988 Scheda tecnica(HTML) 8 Page - Wolfson Microelectronics plc

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WM8988
Production Data
w
PD, Rev 4.0, October 2008
8
Test Conditions
DCVDD = 1.5V, DBVDD = 2.4V, AVDD = HPVDD =2.4V , TA = +25
oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio
data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
HPVDD=3.3V, RL=32
Ω,
PO=20mW
HPCOM=LCOM=0
DACMIXBIAS=0
0.010
-82
HPVDD=3.3V, RL=16
Ω,
PO=20mW
HPCOM=LCOM=0
DACMIXBIAS=0
0.010
-80
HPVDD=1.8V, RL=32
Ω
PO=5mW
HPCOM=LCOM=0
DACMIXBIAS=1
-80
dB
HPVDD=1.8V, RL=16
Ω
PO=5mW
HPCOM=LCOM=0
DACMIXBIAS=1
-78
HPVDD=2.4V, RL=32
Ω,
PO=5mW
HPCOM=LCOM=1
DACMIXBIAS=1
-79
HPVDD=2.4V, RL=16
Ω,
PO=5mW
HPCOM=LCOM=1
DACMIXBIAS=1
-77
-65
HPVDD=3.3V, RL=32
Ω,
PO=20mW
HPCOM=LCOM=0
DACMIXBIAS=0
-80
Total Harmonic Distortion +
Noise
THD+N
HPVDD=3.3V, RL=16
Ω,
PO=20mW
HPCOM=LCOM=0
DACMIXBIAS=0
-78
HPVDD = 3.3V
HPCOM=LCOM=0
DACMIXBIAS=1
100
dB
HPVDD = 2.4V
HPCOM=LCOM=1
DACMIXBIAS=1
90
96
Signal to Noise Ratio
(A-weighted)
SNR
HPVDD = 1.8V
HPCOM=LCOM=0
DACMIXBIAS=0
96
Headphone Output Ground
noise rejection
10mV, 20kHz noise on HPCOM,
HPCOM enabled
40
dB
Line Output Ground Noise
Rejection
10mV, 20kHz noise on LCOM,
LCOM enabled
40
dB
Analogue Reference Levels
Midrail Reference Voltage
VMID
–3%
AVDD/2
+3%
V
Buffered Reference Voltage
VREF
–3%
AVDD/2
+3%
V
Digital Input / Output
Input HIGH Level
VIH
0.7
×DB
VDD
V
Input LOW Level
VIL
0.3
×DBVDD
V



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