WM8711GEFL Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
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WM8711GEFL Datasheet PDF : 47 Pages
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Production Data
POWER CONSUMPTION – WM8711
WM8711 / WM8711L
MODE DESCRIPTION
CURRENT CONSUMPTION
TYPICAL
DAC Playback, oscillator 0
0
0
0
0
and CLKOUT enabled
DAC Playback, using
external MCLK
0
1
1
0
0
Standby
0
1
1
1
1
Power Down
1
1
1
1
1
Table 1 Powerdown Mode Current Consumption Examples
AVDD
(3.3V)
3.5
HPVDD DCVDD DBVDD
(3.3V) (1.5V) (3.3V)
1.7
1.3
1.5
UNITS
mA
3.5
1.7
1.3
0.1
mA
17
0.4
0.7
0.2
µA
0.4
0.3
0.7
0.1
µA
Notes:
1. TA = +25oC. Slave Mode, fs = 48kHz, MCLK = 256fs (12.288MHz).
2. All figures are quiescent, with no signal.
3. The power dissipation in the headphone itself not included in the above table.
ELECTRICAL CHARACTERISTICS – WM8711L
Test Conditions
AVDD, HPVDD, DBVDD = 1.8V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, MCLK = 256fs
unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
Input HIGH level
Output LOW
VIH
0.7 x DBVDD
VOL
IOL = 1mA
Output HIGH
VOH
Power On Reset Threshold (DCVDD)
IOH = -1mA
DCVDD Threshold On -> Off
Hysteresis
DCVDD Threshold Off -> On
Analogue Reference Levels
Reference voltage (VMID)
VVMID
Potential divider resistance
RVMID
Line Output for DAC Playback Only (Load = 10KΩ. 50pF)
0dBFs Full scale output voltage
At LINE outputs
Signal to Noise Ratio
(Note 1,2)
Dynamic Range (Note 2)
Total Harmonic Distortion
Power Supply Rejection Ratio
SNR
DR
THD
PSRR
A-weighted,
@ fs = 48kHz
A-weighted
@ fs = 96kHz
A-weighted, -60dB
full scale input
1kHz, 0dBFs
1kHz, -3dBFs
1kHz 100mVpp
20Hz to 20kHz
100mVpp
0.9 x DBVDD
0.9
0.3
0.6
AVDD/2
50k
1.0 x
AVDD/3.3
85
90
90
85
90
-81
-88
50
45
MAX
0.3 x DBVDD
0.10 x
DBVDD
-75
UNIT
V
V
V
V
V
V
V
V
Ω
Vrms
dB
dB
dB
dB
w
PD Rev 4.4 April 2007
9
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