XWM8721EDS(2000) Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
Número de pieza
componentes Descripción
Fabricante
XWM8721EDS
(Rev.:2000)
(Rev.:2000)
Wolfson Microelectronics plc
XWM8721EDS Datasheet PDF : 34 Pages
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WM8721
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RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
Digital supply range (Core)
DCVDD
1.42
Digital supply range (Buffer)
DBVDD
2.7
Analogue supply range
AVDD, HPVDD
2.7
Ground
DGND, AGND, HPGND
0
Total analogue supply current
IAVDD, IHPVDD
DCVDD, DBVDD, AVDD,
8
HPVDD = 3.3V
Digital supply current
IDCVDD, IDBVDD DCVDD, DBVDD, AVDD,
3
HPVDD = 3.3V
Standby Current Consumption
10
3.6
V
3.6
V
3.6
V
V
mA
mA
uA
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, MCLK =
256fs unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x VDD
V
Input HIGH level
VIH
Output LOW
VOL
0.7 x VDD
V
0.1 x VDD
V
Output HIGH
VOH
0.9 x VDD
V
Analogue Reference Levels
Reference voltage
VVMID
AVDD/2 – AVDD/2 AVDD/2 +
V
50mV
50mV
Potential divider resistance
RVMID
Line Output for DAC Playback Only (Load = 10K ohms. 50pF)
40K
50K
60K
Ohms
0dBFs Full scale output voltage
At LINE outputs
1.0 x
Vrms
AVDD/3.3
SNR (Note 1,2)
A-weighted,
90
100
dB
@ fs = 48KHz
SNR (Note 1,2)
A-weighted
98
dB
@ fs = 96KHz
SNR (Note 1,2)
A-weighted,
93
dB
@ fs = 48KHz, AVDD
= 2.7V
Dynamic Range (Note 2)
DNR
A-weighted, -60dB
85
90
dB
full scale input
THD
1KHz, 0dBFs
-88
-80
dB
1kHz, -3dBFs
-92
-86
dB
Power Supply Rejection Ratio
PSSR
1kHz 100mVpp
50
dB
20Hz to 20kHz
45
dB
100mVpp
DAC channel separation
100
dB
Stereo Headphone Output
0dB Full scale output voltage
1.0 x
Vrms
AVDD/3.3
Max Output Power RL = 32
PO
ohms
30
mW
Max Output Power RL = 16
PO
ohms
40
mW
WOLFSON MICROELECTRONICS LTD
PP Rev 1.3 November 2000
4
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