WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 10

• Manufacturer Part Number: WM8900LGEFK/RV
• Description: Audio CODECs Ultra Low Power Hi-Fi CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8900LGEFK/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8900
Test Conditions
DCVDD=1.8V, DBVDD=1.8V, DGND=AGND=CPGND=HPGND=0V, AVDD=CPVDDHI=2.4V, CPVDDLO=1.8V; TA = +25
1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
Analogue Inputs (LINPUT1, RINPUT1, LINPUT2, RINPUT2, LINPUT3, RINPUT3) to ADC Out
Signal to Noise Ratio
(A-weighted)
Signal to Noise Ratio
(Unweighted)
Total Harmonic Distortion
Total Harmonic Distortion +
Noise
ADC Channel Separation
Line Input / MIC Separation
(Quiescent input to ADC via
boost; Output on ADC;
1kHz on L/RINPUT3 to HP out
via bypass path)
Boost / Bypass Separation
(Quiescent L/RINPUT3 to HP
outputs via bypass)
Channel Matching
DAC to Line-Out (LINEOUT_1L / LINEOUT_1R or LINEOUT_2L / LINEOUT_2R with 10kΩ / 50pF load)
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion
Total Harmonic Distortion +
Noise
DAC to Line-Out (LINEOUT_1L / LINEOUT_1R or LINEOUT_2L / LINEOUT_2R with 10kΩ / 50pF load)
– Reduced Power Mode (DAC_BIAS = 01 = Half Bias)
Signal to Noise Ratio
(A-weighted)
Signal to Noise Ratio
(Unweighted)
Total Harmonic Distortion
Total Harmonic Distortion +
Noise
w
SYMBOL
THD+N
THD+N
THD+N
SNR
SNR
THD
SNR
THD
SNR
SNR
THD
ADC via L/RINPUT1, MIC
1kHz full scale signal into
1kHz full scale signal into
1kHz full scale signal into
1kHz full scale signal into
ADC via L/RINPUT2 and
ADC via L/RINPUT3 and
amp (single-ended) and
Single-ended MIC input
ADC via L/RINPUT1/2,
MIC amp (differential)
ADC via single-ended
Differential MIC input
1kHz on LINPUT2 to
1kHz on LINPUT1 to
ADC via boost only
TEST CONDITIONS
MIC PGA & boost
using L/RINPUT2
AVDD = 3.3V
AVDD = 3.3V
on L/RINPUT1
AVDD=3.3V
AVDD = 2.4V
AVDD = 2.4V
-1dBFs input,
-1dBFs input,
AVDD = 2.4V
-1dBFs input,
-1dBFs input,
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
AVDD=3.3V
AVDD=2.4V
AVDD=2.4V
AVDD=2.4V
1kHz signal
and boost
boost
boost
boost
83
90
MIN
-84
-84
-82
-82
0.2
-89
-88
-83
-81
95
91
93
90
90
90
90
90
90
90
90
90
97
92
89
TYP
PD, August 2008, Rev 4.0
-76
-73
-80
-79
MAX
Production Data
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
o
C,
10