WM8740EDS Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM8740EDS Datasheet PDF : 24 Pages
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WM8740
Production Data
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
DVDD
AVDD
AGND, DGND
AVDD = 5V
DVDD = 5V
AVDD = 3.3V
DVDD = 3.3V
-10% 3.3 to 5 +10%
V
-10% 3.3 to 5 +10%
V
0
V
-0.3
0
+0.3
V
13
mA
19
mA
12
mA
12
mA
Note:
DVDD must be equal to, or less than the AVDD supply (i.e. DVDD = AVDD = +5V; DVDD = AVDD = +3.3V; DVDD = +3.3V
AVDD = +5V).
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
TEST CONDITIONS
Mono fs @ 48kHz
Stereo fs @ 48kHz
MIN
TYP
MAX
120
110
117
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
Stereo fs @ 96kHz
Mono 0dB
Stereo 0dB
-60dB
±0.0012 dB
-3dB
f > 0.5465fs
±0.001dB
-3dB
f > 0.732fs
-3dB
20kHz
IOL = 2mA
IOH = 2mA
116
-104
-95
-104
117
0.4535fs
-82
0.491fs
30/fs
±0.0012
0.274fs
0.459fs
±0.001
-82
9/fs
195
-0.043
2.0
DVDD - 0.3V
0.8
DGND + 0.3V
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
s
dB
dB
s
kHz
dB
V
V
w
PD Rev 4.0 April 2004
6
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