WM8742 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

WM8742

24-bit 192kHz DAC with Advanced Digital Filtering

Cirrus Logic

'WM8742' PDF : 65 Pages View PDF

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Production Data
PARAMETER
TEST CONDITIONS
High Rate (176.4/192kHz) PCM Filter Response 1
Passband
 0.000010 dB
Passband Ripple
Stopband
Stopband Attenuation
Attenuation at fs/2
Fs/2
Group Delay
High Rate (176.4/192kHz) PCM Filter Response 2
Passband
 0.000031 dB
Passband Ripple
Stopband
Stopband Attenuation
Attenuation at fs/2
Fs/2
Group Delay
High Rate (176.4/192kHz) PCM Filter Response 3
Passband
 0.000873 dB
Passband Ripple
Stopband
Stopband Attenuation
Attenuation at fs/2
Fs/2
Group Delay
High Rate (176.4/192kHz) PCM Filter Response 4
Passband
 0.000015 dB
Passband Ripple
Stopband
Stopband Attenuation
Attenuation at fs/2
Fs/2
Group Delay
High Rate (176.4/192kHz) PCM Filter Response 5
Passband
 0.000001 dB
Passband Ripple
Stopband
Stopband Attenuation
Attenuation at fs/2
Fs/2
Group Delay
Table 66 High Rate PCM Filter Characteristics
MIN
0.500fs
-120.0
0.500fs
-120.0
0.500fs
-110.1
0.400fs
-120.0
0.400fs
-122.8
8FS MODE FILTER CHARACTERISTICS
PARAMETER
TEST CONDITIONS
MIN
8FS Mode Filter
Passband
 0.000021 dB
Passband Ripple
Filter Cut-off
-3dB point
Group Delay
Table 67 8FS Mode Filter Characteristics
TYP
-127.5
10
-124.93
4
-112.67
31
-120.58
6
-128.58
18
MAX
0.104fs
0.000010
0.104fs
0.000031
0.400fs
0.000873
0.104fs
0.000015
0.104fs
0.000001
WM8742
UNIT
dB
dB
dB
fs
dB
dB
dB
fs
dB
dB
dB
fs
dB
dB
dB
fs
dB
dB
dB
fs
TYP
121.13
5
MAX
0.455
0.000021
UNIT
fs
dB
kHz
fs
w
PD, Rev 4.3, February 2013
51

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