WM8762
Preliminary Technical Data
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Supply range
SYMBOL
VDD
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
2.7
5.5
Ground
GND
0
V
Supply current
Supply current
Power down current (note 3)
VDD = 5V
VDD = 3.3V
VDD=3.3V
26
20
0.5
mA
mA
mA
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 (TTL Levels)
Input LOW level
V
IL
V
V
V
V
Input HIGH level
Output LOW
VIH
VOL
VOH
2
I
OL = 2mA
0.10 x VDD
Output HIGH
I
OH = 2mA
0.9 x VDD
DAC Output (Load = 10k ohms. 50pF)
0dBFS Full scale output voltage
At DAC outputs
1.2 x
VDD/5
98
Vrms
dB
dB
dB
dB
SNR (Note 1,2)
SNR (Note 1,2)
SNR (Note 1,2)
SNR (Note 1,2)
A-weighted,
@ fs = 48kHz
A-weighted
@ fs = 96kHz
A-weighted
@ fs = 192kHz
A-weighted,
@ fs = 48kHz
VDD = 3.3V
A-weighted
95
92
95
SNR (Note 1,2)
SNR (Note 1,2)
95
92
dB
dB
@ fs = 96kHz
VDD = 3.3V
Non ‘A’ weighted @ fs
= 48kHz
THD
1kHz, 0dBFS
-84
98
dB
dB
Dynamic range (Note 2)
1kHz, THD+N @
-60dBFs
90
Analogue Output Levels
Output level
Load = 10k ohms,
0dBFS
Load = 10k ohms,
0dBFS,
1.2
VRMS
VRMS
0.79
(VDD = 3.3V)
Gain mismatch
channel-to-channel
1
1
%FSR
kohms
kohms
Minimum resistance load
To midrail or a.c.
coupled
To midrail or a.c.
coupled
1
(VDD = 3.3V)
Maximum capacitance load
Output d.c. level
5V or 3.3V
100
pF
V
VDD/2
Power On Reset (POR)
POR threshold
1.8
V
PTD Rev 2.0 August 2003
5
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
