WM8740 View Datasheet(PDF) - Wolfson Microelectronics plc
Part Name
Description
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WM8740 Datasheet PDF : 20 Pages
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WM8740
Advanced Information
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
SYMBOL
DVDD
AVDD
AGND, DGND
AVDD = 5V
DVDD = 5V
AVDD = 3.3V
DVDD = 3.3V
TEST CONDITIONS
MIN
-10%
-10%
-0.3
TYP
3.3 to 5
3.3 to 5
0
0
15
15
15
9
MAX
+10%
+10%
+0.3
UNIT
V
V
V
V
mA
mA
mA
mA
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
AVDD, DVDD = 5V, AGND, DGND = 0V, TA = +25oC, fs = 48kHz, SCKI = 256fs unless otherwise stated.
PARAMETER
DAC Circuit Specifications
SNR
(See Note 1)
SYMBOL
THD (full-scale)
(See Note 2)
THD+N (Dynamic range)
(See Note 2)
Filter Characteristics (Sharp Roll-off)
Passband
Stopband
Passband ripple
Stopband attenuation
Delay time
Filter Characteristics (Slow Roll-off)
Passband
Stopband
Passband ripple
Stopband attenuation
Delay time
Internal Analogue Filter
Bandwidth
Passband edge response
Digital Logic Levels
Input LOW level
VIL
Input HIGH level
VIH
Output LOW level
VOL
Output HIGH level
VOH
TEST CONDITIONS
Mono fs @ 48kHz
Stereo fs @ 48kHz
Stereo fs @ 96kHz
Mono 0dB
Stereo 0dB
-60dB
MIN
TYP
MAX
120
110
117
116
-104
-95
-104
117
±0.0012 dB
-3dB
f > 0.5465fs
±0.001dB
-3dB
f > 0.732fs
-3dB
20kHz
IOL = 2mA
IOH = 2mA
0.4535fs
-82
0.491fs
30/fs
±0.0012
0.274fs
0.459fs
±0.001
-82
9/fs
195
-0.043
2.0
AVDD - 0.3V
0.8
AVSS + 0.3V
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
s
dB
dB
s
kHz
dB
V
V
WOLFSON MICROELECTRONICS LTD
AI Rev 1.7 July 2000
4
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