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DA7211 Datasheet(PDF) 16 Page - Dialog Semiconductor

Part # DA7211
Description  Ultra-low power stereo codec
PDF  105 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA7211 Datasheet(HTML) 16 Page - Dialog Semiconductor

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DA7211
Ultra-low power stereo codec
Company confidential
Datasheet
Revision 3e
15-Oct-2015
CFR0011-120-00 Rev 5
16 of 105
© 2015 Dialog Semiconductor
Test conditions: VDD=2.5 V, Ta=25°C, fs=48 kHz, 24-bit audio data unless specified otherwise
Table 7: Electrical characteristics: Microphone bias
Parameter
Description
Conditions
Min
Typ
Max
Unit
VBIAS
Bias Voltage
No load, AVDD = 2.5 V
No load, AVDD = 1.8 V
2.2
1.5
Pro-
grammable
2.3
1.6
V
IBIAS
Maximum Current
Voltage drop < 50 mV
2
mA
PSRR with
respect to
AVDD
Power Supply Rejection
Ratio
20 Hz - 2 kHz
2 kHz - 20 kHz
70
50
dB
VN
Output Noise Voltage
5
µVRMS
Capacitive Load
IBIAS < 100 µA,
100 µA < IBIAS < 2 mA
100
200
pF
Table 8: Electrical characteristics: Input mixing units
(MICP_L, MICN_L, AUX_L, MICP_R, MICN_R, AUX1_R)
Parameter
Description
Conditions
Min
Typ
Max
Unit
VMAX
Full-scale Input Signal
single-ended
differential
MIC-PGA=0 dB
IN-PGA=0 dB
0.8*AVDD
1.6*AVDD
VPP
RIN
Input resistance
Mic, single-ended
AUX1
12
6
15
variable
18
40
k
Frequency Response
+/- 0.5 dB
20
20k
Hz
Amplitude Ripple
20 Hz
– 20 kHz
-0.5
0.5
dB
Programmable Gain
Note 4
MIC-PGA
AUX1-PGA
IN-PGA
-6
-48
-4.5
24
21
18
dB
Programmable Gain Step
Size
MIC-PGA
AUX1-PGA, IN-PGA
6
1.5
dB
Absolute Gain Accuracy
0 dB @ 1 kHz
-1.0
1.0
dB
Input Gain L/R-Mismatch
20 Hz
– 20 kHz
-0.1
0.1
dB
Input Gain Step Error
20 Hz
– 20 kHz
-0.1
0.1
dB
VNOISE
Input Noise Level
Inputs connected to GND
A-weighting input referred,
measured @ ADC output
Mic (Gain = 42 dB)
AUX1 (Gain = 21 dB)
5
6.5
µVRMS
PSRR with
respect to
AVDD
Power Supply Rejection
Ratio
20 Hz - 2 kHz
2 kHz - 20 kHz,
single-ended input
80
70
dB
Note 4
The gain describes the ratio of input and output signal level at the related amplifier stage (independent
of whether the connection is single ended or differential).



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