WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 11

• 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

Production Data
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
Channel Separation
L/RINPUT3 to HP_L / HP_R via bypass path
Channel Separation
DAC to LINEOUT_2L / LINEOUT_2R to HP_L / HP_R
Signal to Noise Ratio
(A-weighted)
Total Harmonic Distortion
Total Harmonic Distortion +
Noise
DAC to LINEOUT_2L / LINEOUT_2R to HP_L / HP_R
– Reduced Power Mode (DAC_BIAS = 01 = Half Bias)
0dB Full scale output voltage
Mute attenuation
Signal to Noise Ratio
(A-weighted)
Signal to Noise Ratio
(Unweighted)
Total Harmonic Distortion
Total Harmonic Distortion +
Noise
PGA for LINEOUT_2L and LINEOUT_2R
(can be used to control HP_L and HP_R amplitude or as a separate LINE OUT)
Minimum Gain
Maximum Gain
Programmable Gain Step Size
PGA for LINEOUT_1L and
LINEOUT_1R
Minimum Gain
Maximum Gain
Programmable Gain Step Size
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
w
SYMBOL
THD+N
V
THD+N
I
VREF
VMID
MICBIAS
THD
SNR
SNR
SNR
THD
MICBIAS
V
V
V
Vn
V
OH
OL
IH
IL
Guaranteed monotonic
Guaranteed monotonic
AVDD=2.4V, R
AVDD=2.4V, R
AVDD=2.4V, R
AVDD=2.4V, R
1kHz, full scale signal
TEST CONDITIONS
3mA load current
3mA load current
1kHz to 20kHz
MICB_LVL = 0
MICB_LVL = 1
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
AVDD = 2.4V
1K to 20kHz
1kHz signal
MBSEL = 0
MBSEL = 1
P
P
P
P
I
I
O
O
O
OL
OH
O
= 5mW
= 5mW
= 5mW
=5mW
=1mA
-1mA
L
L
L
L
=32Ω,
=16Ω,
=32Ω,
=16Ω,
0.7×DBVDD
0.9×DBVDD
–3%
–3%
–5%
–5%
90
MIN
0.65×AVDD
0.9×AVDD
AVDD/3.3
AVDD/2
AVDD/2
100
-92
-90
-86
-82
-80
-57
-57
-84
85
97
90
92
90
+6
+6
25
17
TYP
1
1
PD, August 2008, Rev 4.0
0.3×DBVDD
0.1×DBVDD
+ 5%
+ 5%
+3%
+3%
-82
-80
MAX
3
WM8900
nV/√Hz
nV/√Hz
Vrms
mA
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V
V
V
V
o
C,
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