WM8962B Datasheet, PDF (11/295 Pages) Wolfson Microelectronics plc – Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers

WM8962
Test Conditions
MICVDD = DCVDD = DBVDD = CPVDD = AVDD = PLLVDD = 1.8V, SPKVDD1 = SPKVDD2 = 5V.
TA = +25^oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
Analogue Inputs (IN1L, IN1R) to ADC out via Input PGA and Input Gain Boost
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion Plus
Noise (-1dBFS input)
SNR
THD+N
ADC_HP=0
MIXIN_BIAS=100
INPGA_BIAS=100
‘Option 1’ (low power) bias
settings - see Note 2.
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion Plus
Noise (-1dBFS input)
SNR
THD+N
ADC_HP=0
MIXIN_BIAS=011
INPGA_BIAS=100
‘Option 2’ bias settings -
see Note 2.
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion Plus
Noise (-1dBFS input)
SNR
ADC_HP=0
81
MIXIN_BIAS=000
THD+N
INPGA_BIAS=100
‘Option 3’ bias settings -
see Note 2.
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion Plus
Noise (-1dBFS input)
SNR
THD+N
ADC_HP=1
MIXIN_BIAS=000
INPGA_BIAS=000
‘Option 4’ (high performance)
bias settings - see Note 2.
ADC Channel Separation
1kHz
10kHz
PSRR (AVDD)
100mV(peak-peak) 1kHz
100mV(peak-peak) 20kHz
Channel Matching
1kHz signal
TYP
91
-70
91
-75
91
-82
93
-82
95
97
60
40
+/-0.5
MAX
UNIT
dB
dB
dB
dB
dB
-72
dB
dB
dB
dB
dB
dB
Rev 4.3
11