wm8953 Wolfson Microelectronics plc, wm8953 Datasheet - Page 9

• Manufacturer Part Number: wm8953
• Description: Low Power Stereo Adc With Pll And Tdm Interface Low Power Stereo Adc With Pll And Tdm Interface
• Manufacturer: Wolfson Microelectronics plc

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Production Data
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = 3.3V, T
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
Analogue Input Pin Impedances (LIN1, LIN2, LIN3, LIN4, RIN1, RIN2, RIN3, RIN4)
PGA Input Resistance
Note: this will be seen in
parallel with the
resistance of other
enabled input paths
from the same pin
Line Input Resistance
Note: this will be seen in
parallel with the
resistance of other
enabled input paths
from the same pin
Input Capacitance
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = 3.3V, T
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
Input Programmable Gain Amplifiers (PGAs) LIN12, LIN34, RIN12 and RIN34
Minimum Programmable Gain
Maximum Programmable Gain
Programmable Gain Step Size
Mute Attenuation
Common Mode Rejection Ratio
(1kHz input)
Input Mixers INMIXL and INMIXR
Minimum Programmable Gain
Maximum Programmable Gain
Programmable Gain Step Size
Minimum Programmable Gain
Maximum Programmable Gain
Programmable Gain Step Size
Mute attenuation
PARAMETER
LIN2 or RIN2 to INMIXL or
LIN2 or RIN2 to INMIXL or
LIN2 or RIN2 to INMIXL or
LIN2, LIN4, RIN2 or RIN4
LIN1, LIN3, RIN1 or RIN3
LIN1, LIN3, RIN1 or RIN3
LIN1, LIN3, RIN1 or RIN3
(Constant for all gains)
All analogue input pins
(PGA Gain = -16.5dB)
(PGA Gain = +30dB)
(PGA Gain = 0dB)
INMIXR (-12dB)
INMIXR (+6dB)
INMIXR (0dB)
Single PGA in differential mode, gain = -16.5dB
Single PGA in differential mode, gain = +30dB
Single PGA in differential mode, gain = 0dB
PGA Outputs to INMIXL and INMIXR
PGA Outputs to INMIXL and INMIXR
PGA Outputs to INMIXL and INMIXR
Line Inputs to INMIXL and INMIXR
Line Inputs to INMIXL and INMIXR
Line Inputs to INMIXL and INMIXR
TEST CONDITIONS
A
A
Guaranteed monotonic
= +25
= +25
Inputs disconnected
TEST CONDITIONS
o
o
C, 1kHz signal, fs = 48kHz,
C, 1kHz signal, fs = 48kHz,
MIN
MIN
-16.5
PD, January 2009, Rev 4.0
TYP
TYP
+30
7.5
1.5
-12
57
33
65
60
15
10
30
+6
90
60
50
50
30
95
2
0
3
MAX
MAX
WM8953
UNIT
UNIT
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
9