WM8750BL_12 Datasheet, PDF (7/60 Pages) Wolfson Microelectronics plc – Stereo CODEC for Portable Audio Applications

Production Data
WM8750BL
Test Conditions
DCVDD = 1.5V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, T_A = +25^oC, 1kHz signal, fs = 48kHz, ADCOSR=1, DACOSR=1,
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
Speaker Output (LOUT2/ROUT2 with 8 bridge tied load, ROUT2INV=1)
Output Power at 1% THD
P_O
THD = 1%
330
mW (rms)
Maximum Achievable Output
Power
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
P_Omax
AVDD=HPVDD=3.3V,
400
mW (rms)
R_L=8
THD
Po=200mW, R_L=8,
-60
dB
HPVDD=3.3V
0.1
%
SNR
HPVDD=3.3V, R_L=8
95
dB
VMID
VREF
V_MICBIAS
I_MICBIAS
Vn
V_IH
V_IL
V_OH
V_OL
V_IH
V_IL
–3%
AVDD/2
+3%
V
–3%
AVDD/2
+3%
V
3mA load current
1K to 20kHz
–5%
0.9AVDD
15
+ 5%
3
V
mA
nV/Hz
I_OH = +1mA
I_OL = -1mA
0.7DBVDD
0.9DBVDD
0.7AVDD
V
0.3DBVDD
V
V
0.1DBVDD
V
V
0.3AVDD
V
w
PD, Rev 4.1, August 2012
7