LC786821E Datasheet, PDF (23/35 Pages) ON Semiconductor – Compressed Audio Signal Processor IC

LC786821E
Audio Data Input/Output Function
 AC Electrical Characteristics
at Ta=25C, VDD1=3.3V, DVSS=AVSS1=AVSS2=XVSS=0V
Fs=44.1kHz, Audio Signal Frequency: 1kHz, Measurement Range: 10Hz to 20kHz
Parameter
(Input selector+ADC)
Full scale Analog Input Level
Input Impedance
Gain Setting Level
Gain Setting Step
Gain Setting Step Error
Signal to Noise Ratio
Dynamic Range
Symbol
Pin
Names
L1IN,
R1IN,
L2IN,
S/N _R2IN,
L3INP,
L3INN,
DR R3INP,
R3INN
Conditions
0dB Data,
20kHz-LPF,
A-filter
60dB Data,
20kHz-LPF,
A-filter
Min
Typ
Max Unit
2.605
2.805
(0.85VDD1)
3.005
Vpp
20
30
kΩ
12
19
dB
1
dB
0.5
0.5
dB
90
95
dB
90
95
dB
Total Harmonic
Distortion
THD+N
Input condition :
3dBFS
85
80
dB
Cross Talk1
CT1
Between Channels
100
85
dB
Cross Talk2
CT2
(ADC Digital Filter)
Passband Frequency
Stopband Frequency
Passband Ripple
Stopband Attenuation
HPF Cut Off Frequency for DC
Offset cancelation
(Audio DAC)
Full scale Analog Output Level
Between Sources
±0.04dB
0
0.5465
>24.1kHz
69
100
0.00002
85
dB
0.4535 Fs
Fs
±0.04 dB
dB
Fs
2.605
2.805
(0.85VDD)
3.005
Vpp
Signal to Noise Ratio
Dynamic Range
0dB Data,
S/N
20kHz-LPF,
A-filter
DR
DACOUTL,
DACOUTR,
DACOUTS
60dB Data,
20kHz-LPF,
A-filter
106
dB
106
dB
Total Harmonic
Distortion
THD+N
0dB Data,
20kHz-LPF
85
80
dB
Cross Talk
CT
(DAC Digital Filter)
Passband Frequency
0dB Data,
20kHz-LPF
±0.015dB
100
85
dB
0
0.4535 Fs
Stopband Frequency
0.5465
Fs
Passband Ripple
±0.015 dB
Stopband Attenuation
HPF Cut Off Frequency for DC
Offset cancelation
62
dB
3dB
0.0000385
Fs
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