WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 20

• Manufacturer Part Number: WM8903LGEFK/RV
• Description: Audio CODECs ULTRA LOW PWR HI FI CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8903LGEFK/RV

• Audio Codec Type: Stereo Codec
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 6
• No. Of Output Channels: 8
• Adc / Dac Resolution: 24bit
• Sampling Rate: 96kHz
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Adcs / Dacs Signal To Noise Ratio: 96dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADC Filter
Passband
Passband Ripple
Stopband
Stopband Attenuation
DAC Normal Filter
Passband
Passband Ripple
Stopband
Stopband Attenuation
DAC Sloping Stopband Filter
Passband
Passband Ripple
Stopband 1
Stopband 1 Attenuation
Stopband 2
Stopband 2 Attenuation
Stopband 3
Stopband 3 Attenuation
WM8903
DIGITAL FILTER CHARACTERISTICS
TERMINOLOGY
1.
2.
w
Mode
Normal
Sloping Stopband
Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)
Pass-band Ripple – any variation of the frequency response in the pass-band region
PARAMETER
DAC FILTERS
Group Delay
16.5 / fs
18 / fs
TEST CONDITIONS
F > 0.546 fs
f > 0.546 fs
f > 0.546 fs
+/- 0.05dB
+/- 0.05dB
+/- 0.03dB
F > 1.4 fs
f > 0.7 fs
0.454 fs
+/- 1dB
0.25 fs
-6dB
-6dB
-6dB
Mode
Normal
0.546 fs
0.546 fs
0.546s
0.25 fs
0.7 fs
1.4 fs
MIN
-60
-50
-60
-85
-55
0
0
0
ADC FILTERS
0.5 fs
0.5 fs
0.5fs
TYP
Group Delay
16.5 / fs
0.454 fs
0.454 fs
0.454 fs
+/- 0.05
+/- 0.03
+/- 0.03
0.25 fs
0.7 fs
1.4 fs
MAX
PP, Rev 3.1, August 2009
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
Pre-Production
20