Datasheet
Table Of Contents
- Title Page - SLWS106H
- IMPORTANT NOTICE
- Contents
- List of Illustrations
- 1 Introduction
- 2 Specifications
- 2.1 Absolute Maximum Ratings Over Operating Free-Air Temperature Range (unless otherwise noted)†
- 2.2 Recommended Operating Conditions
- 2.3 Electrical Characteristics Over Recommended Operating Conditions, AVDD, HPVDD, BVDD = 3.3 V, DVDD = 1.5 V, Slave Mode, XTI/ MCLK = 256fs, fs = 48 kHz ( unless otherwise stated)
- 2.4 Digital-Interface Timing
- 3 How to Use the TLV320AIC23B
- Appendix A: Mechanical Data
2−2
2.3 Electrical Characteristics Over Recommended Operating Conditions, AV
DD
,
HPV
DD
, BV
DD
= 3.3 V, DV
DD
= 1.5 V, Slave Mode, XTI/MCLK = 256fs, f
s
= 48 kHz
(unless otherwise stated)
2.3.1 ADC
2.3.1.1 Line Input to ADC
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Input signal level (0 dB) 1 V
RMS
Signal-to-noise ratio, A-weighted, 0-dB gain (see Notes 3
f
s
= 48 kHz (3.3 V) 85 90
dB
Signal-to-noise ratio, A-weighted, 0-dB gain (see Notes 3
and 4)
f
s
= 48 kHz (2.7 V) 90
dB
Dynamic range, A-weighted, −60-dB full-scale input (see
AV
DD
= 3.3 V 85 90
dB
Dynamic range, A-weighted, −60-dB full-scale input (see
Note 4)
AV
DD
= 2.7 V 90
dB
Total harmonic distortion, −1-dB input, 0-dB gain
AV
DD
= 3.3 V –80
dB
Total harmonic distortion, −1-dB input, 0-dB gain
AV
DD
= 2.7 V 80
dB
Power supply rejection ratio 1 kHz, 100 mV
pp
50 dB
ADC channel separation 1 kHz input tone 90 dB
Programmable gain 1 kHz input tone, R
SOURCE
< 50 Ω –34.5 12 dB
Programmable gain step size Monotonic 1.5 dB
Mute attenuation 0 dB, 1 kHz input tone 80 dB
Input resistance
12 dB Input gain 10 20
kΩ
Input resistance
0 dB input gain 30 35
kΩ
Input capacitance 10 pF
NOTES: 3. Ratio of output level with 1-kHz full-scale input, to the output level with the input short circuited, measured A-weighted over a 20-Hz
to 20-kHz bandwidth using an audio analyzer.
4. All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter
results in higher THD + N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass
filter removes out-of-band noise, which, although not audible, may affect dynamic specification values.
2.3.1.2 Microphone Input to ADC, 0-dB Gain, f
s
= 8 kHz (40-KΩ Source Impedance, see Section 1.2,
Functional Block Diagram)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Input signal level (0 dB) 1.0 V
RMS
Signal-to-noise ratio, A-weighted, 0-dB gain (see Notes 3 and 4)
AV
DD
= 3.3 V 80 85
dB
Signal-to-noise ratio, A-weighted, 0-dB gain (see Notes 3 and 4)
AV
DD
= 2.7 V 84
dB
Dynamic range, A-weighted, −60-dB full-scale input (see Note 4)
AV
DD
= 3.3 V 80 85
dB
Dynamic range, A-weighted, −60-dB full-scale input (see Note 4)
AV
DD
= 2.7 V 84
dB
Total harmonic distortion, −1-dB input, 0-dB gain
AV
DD
= 3.3 V –60
dB
Total harmonic distortion, −1-dB input, 0-dB gain
AV
DD
= 2.7 V −60
dB
Power supply rejection ratio 1 kHz, 100 mV
pp
50 dB
Programmable gain boost 1 kHz input tone, R
SOURCE
< 50 Ω 20 dB
Microphone-path gain MICBOOST = 0, R
SOURCE
< 50 Ω 14 dB
Mute attenuation 0 dB, 1 kHz input tone 60 80 dB
Input resistance 8 14 kΩ
Input capacitance 10 pF
NOTES: 3. Ratio of output level with 1-kHz full-scale input, to the output level with the input short circuited, measured A-weighted over a 20-Hz
to 20-kHz bandwidth using an audio analyzer.
4. All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter
results in higher THD + N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass
filter removes out-of-band noise, which, although not audible, may affect dynamic specification values.