Production Data
WM8716
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
AVDD, DVDD = 5V, AGND, DGND = 0V, TA = +25oC, fs = 48kHz, SCKI = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC Circuit Specifications
SNR (See Notes 1 and 2)
THD (full-scale)
105
112
-92
-97
112
dB
dB
dB
dB
0dB FS
-1dB FS
(See Note 2)
Dynamic range
(See Note 2)
THD @ -60dB FS
105
Filter Characteristics (Sharp Roll-off)
Passband
0.0012 dB
-3dB
0.4535fs
dB
Stopband
0.491fs
30/fs
Passband ripple
0.0012
dB
dB
s
Stopband Attenuation
Delay time
f > 0.5465fs
-82
Filter Characteristics (Slow Roll-off)
Passband
0.001dB
-3dB
0.274fs
0.459fs
Stopband
Passband ripple
0.001
dB
dB
s
Stopband Attenuation
Delay time
f > 0.732fs
-82
9/fs
Internal Analogue Filter
Bandwidth
-3dB
195
kHz
dB
Passband edge response
Digital Logic Levels
20kHz
-0.043
Input LOW level
Input HIGH level
(See Note 3)
VIL
VIH
0.8
2.0
V
V
Output LOW level
Output HIGH level
VOL
VOH
IOL = 2mA
IOH = 2mA
DGND + 0.3V
DVDD - 0.3V
Analogue Output Levels
Output level
Into 10kΩ, full scale 0dB,
1.1
0.72
1
VRMS
VRMS
kΩ
(5V supply)
Into 10kΩ, full scale 0dB,
(3.3V supply)
Minimum resistance load
To midrail or AC coupled
(5V supply)
To midrail or AC coupled
(3.3V supply)
600
Ω
Maximum capacitance load
Output DC level
5V or 3.3V
100
AVDD/2
0.5
pF
V
Gain mismatch channel to
channel
2
%FSR
Reference Levels
Potential divider resistance
10
kΩ
AVDD to VMIDL/VMIDR and
VMIDL/VMIDR to AGND
Voltage at VMIDL/VMIDR
POR
AVSS/2
2.5V
POR threshold
V
w
PD, Rev 4.2, August 2008
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
