Electrical characteristics (continued) – Rainbow Electronics MAX9860 User Manual
Page 4
MAX9860
16-Bit Mono Audio Voice Codec
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DVDD
= V
DVDDIO
= +1.8V, R
L
=
∞, headphone load (R
L
) connected between OUTP and OUTN, C
REF
= 2.2µF, C
MICBIAS
=
C
PREG
= C
REG
= 1µF, A
VPRE
= +20dB, A
VMICPGA
= 0dB, MCLK = 13MHz, LRCLK = 8kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f
S
= 8kHz, A
VPRE
= 0dB,
A-weighted from 20Hz to f
S
/2
81
Dynamic Range (Note 5)
DR
f
S
= 48kHz, A
VPRE
= 0dB, T
A
= +25°C
75
83
dB
f
S
= 8kHz
1.2
ADC Phase Delay
f = 1kHz, 0dBFS, HP filter
disabled, analog input to
digital output
f
S
= 16kHz
0.61
ms
Total Harmonic Distortion
THD
f = 1kHz, f
S
= 48kHz, T
A
= +25°C
-70
-75
dB
f = 1kHz, V
RIPPLE
= 100mV
P-P
,
A
VPGA
= 0dB
82
Power-Supply Rejection Ratio
PSRR
f = 10kHz, V
RIPPLE
= 100mV
P-P
,
A
VPGA
= 0dB
76
dB
Channel Crosstalk
Driven channel at -1dBFS, f = 1kHz
-92
dB
ADC LOWPASS DIGITAL FILTER
With respect to f
S
within ripple;
f
S
= 8kHz to 48kHz
0.445 x
f
S
Hz
Passband Cutoff
f
PLP
-3dB cutoff
0.449
f
S
Passband Ripple
f < f
PLP
±0.1
dB
Stopband Cutoff
f
SLP
With respect to f
S
; f
S
= 8kHz to 48kHz
0.469 x
f
S
Hz
Stopband Attenuation
f > f
SLP
74
dB
ADC HIGHPASS DIGITAL FILTER
AVFLT = 0x1 (elliptical for 16kHz GSM)
0.0161
x f
S
AVFLT = 0x2 (500Hz Butterworth for
16kHz)
0.0312
x f
S
AVFLT = 0x3 (elliptical for 8kHz GSM)
0.0321
x f
S
AVFLT = 0x4
(500Hz Butterworth for 8kHz)
0.0625
x f
S
5th Order Passband Cutoff
(-3dB from Peak, I
2
C Register
Programmable) (Note 6)
f
AHPPB
AVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0042
x f
S
Hz