WM8714
Production Data
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Supply range
SYMBOL
VDD
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
2.7
5.5
Ground
GND
0
0
V
Difference DGND to AGND
Supply current
Supply current
-0.3
+0.3
25
V
VDD = 5V
15
12
mA
mA
VDD = 3.3V
ELECTRICAL CHARACTERISTICS
Test Conditions
VDD = 5V, GND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
0.8
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
VIH
V
V
V
V
Input HIGH level
2.0
Output LOW
VOL
VOH
I
OL = 2mA
AGND + 0.3V
Output HIGH
I
OH = 2mA
AVDD - 0.3V
Analogue Reference Levels
Reference voltage (CAP)
VDD/2 -
50mV
80k
VDD/2
100k
VDD/2 +
50mV
120k
V
Potential divider resistance
RVMID
VDD to CAP and CAP
to GND
Ω
DAC Output (Load = 10k ohms. 50pF)
0dBFs Full scale output voltage
At DAC outputs
1.1 x
VDD/5
95
Vrms
dB
SNR (Note 1,2,3)
SNR (Note 1,2,3)
SNR (Note 1,2,3)
A-weighted,
@ fs = 48kHz
A-weighted
@ fs = 96kHz
A-weighted,
90
93
97
dB
dB
@ fs = 48kHz
AVDD, DVDD = 3.3V
A-weighted
@ fs = 96kHz
AVDD, DVDD = 3.3V
SNR (Note 1,2,3)
SNR (Note 1,2,3)
95
92
dB
dB
Non A-weighted @ fs =
48kHz
THD (Note 3)
1kHz, 0dBFs
-90
95
-74
dB
dB
Dynamic Range (Note 2)
1kHz, THD+N @
-60dBFs
90
DAC channel separation
95
dB
PD Rev 4.0 November 2004
6
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
