WM8973 Wolfson Microelectronics Ltd., WM8973 Datasheet - Page 8

• Manufacturer Part Number: WM8973
• Description: The WM8976 is a low power, high quality stereo codec designed for portable applications such as Digital still camera or Digital Camcorde
• Manufacturer: Wolfson Microelectronics Ltd.

WM8973L
w
Test Conditions
DCVDD = 1.5V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, T
data unless otherwise stated.
PARAMETER
Speaker Output (LOUT2/ROUT2 with 8
Output Power at 1% THD
Abs. Max Power Ouptut
Total Harmonic Distortion
Signal to Noise Ratio
(A-weighted)
Analogue Reference Levels
Midrail Reference Voltage
Buffered Reference Voltage
Microphone Bias
Bias Voltage
Bias Current Source
Output Noise Voltage
Digital Input / Output
Input HIGH Level
Input LOW Level
Output HIGH Level
Output LOW Level
HPDETECT (pin 23)
Input HIGH Level
Input LOW Level
SYMBOL
V
P
I
VREF
VMID
MICBIAS
SNR
MICBIAS
THD
O
V
V
V
V
P
Vn
V
V
max
OH
OL
IH
IH
O
IL
IL
bridge tied load, ROUT2INV=1)
HPVDD=3.3V, R
Po=200mW, R
TEST CONDITIONS
3mA load current
HPVDD=3.3V
1K to 20kHz
I
I
THD = 1%
OH
OL
= +1mA
= -1mA
A
= +25
L
=8 ,
L
o
=8
C, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio
0.7 DBVDD
0.9 DBVDD
0.7 AVDD
–5%
–3%
–3%
MIN
0.9 AVDD
AVDD/2
AVDD/2
0.07
TYP
330
500
-63
95
15
PD Rev 4.2 September 2005
0.3 DBVDD
0.1 DBVDD
0.3 AVDD
+ 5%
+3%
+3%
MAX
3
Production Data
mW (rms)
mW (rms)
nV/ Hz
UNIT
mA
dB
dB
%
V
V
V
V
V
V
V
V
V
8