wm8569seds-v Wolfson Microelectronics plc, wm8569seds-v Datasheet - Page 7

• Manufacturer Part Number: wm8569seds-v
• Description: 24-bit, 192khz Stereo Codec With Volume Control
• Manufacturer: Wolfson Microelectronics plc

Production Data
Notes:
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TERMINOLOGY
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Test Conditions
AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, DGND = 0V, T
PARAMETER
Mute Attenuation
Power Supply Rejection Ratio
Digital Logic Levels (CMOS Levels)
Input LOW level
Input HIGH level
Input leakage current
Input capacitance
Output LOW
Output HIGH
Analogue Reference Levels
Reference voltage
Potential divider resistance
Supply Current
Analogue supply current
Digital supply current
with no signal applied. (No Auto-zero or Automute function is employed in achieving these results).
Normally a THD+N measurement at 60dB below full scale. The measured signal is then corrected by adding the 60dB
to it. (e.g. THD+N @ -60dB= -32dB, DR= 92dB).
the other. Normally measured by sending a full scale signal down one channel and measuring the other.
Ratio of output level with 1kHz full scale input, to the output level with all zeros into the digital input, measured ‘A’
weighted.
All performance measurements done with 20kHz low pass filter, and where noted an A-weight filter. Failure to use
such a filter will result in higher THD+N and lower SNR and Dynamic Range readings than are found in the Electrical
Characteristics. The low pass filter removes out of band noise; although it is not audible it may affect dynamic
specification values.
VMID decoupled with 10uF and 0.1uF capacitors (smaller values may result in reduced performance).
Signal-to-noise ratio (dB) - SNR is a measure of the difference in level between the full scale output and the output
Dynamic range (dB) - DNR is a measure of the difference between the highest and lowest portions of a signal.
THD (dB) - THD is a ratio, of the rms values, of Distortion/Signal.
Stop band attenuation (dB) - Is the degree to which the frequency spectrum is attenuated (outside audio band).
Channel Separation (dB) - Also known as Cross-Talk. This is a measure of the amount one channel is isolated from
Pass-Band Ripple - Any variation of the frequency response in the pass-band region.
SYMBOL
PSRR
V
R
V
V
V
V
VMID
VMID
OH
OL
IH
IL
1kHz Input, 0dB gain
AVDD, VREFP = 5V
VREFP to VMID and
TEST CONDITIONS
VMID to VREFN
1kHz 100mVpp
20Hz to 20kHz
DVDD = 3.3V
I
100mVpp
I
OH
OL
= -1mA
=1mA
A
0.7 x DVDD
0.9 x DVDD
VREFP/2 –
= +25
50mV
MIN
o
C, fs = 48kHz, MCLK = 256fs.
VREFP/2
±0.2
TBD
TBD
TYP
90
50
45
50
5
0.3 x DVDD
0.1 x DVDD
VREFP/2 +
50mV
PD Rev 4.0 June 2006
MAX
±1
WM8569
UNIT
mA
mA
µA
kΩ
dB
dB
dB
pF
V
V
V
V
V
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