24TQFN-EP Просмотр технического описания (PDF) - Maxim Integrated
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24TQFN-EP Datasheet PDF : 39 Pages
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16-Bit Mono Audio Voice Codec
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = VDVDDIO = +1.8V, RL = ∞, headphone load (RL) connected between OUTP and OUTN, CREF = 2.2µF, CMICBIAS =
CPREG = CREG = 1µF, AVPRE = +20dB, AVMICPGA = 0dB, MCLK = 13MHz, LRCLK = 8kHz, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
Power-Supply Rejection Ratio
PSRR
DAC LOWPASS DIGITAL FILTER
Passband Cutoff
fPLP
Passband Ripple
CONDITIONS
f = 1kHz, VRIPPLE = 100mVP-P,
AVPGA = 0dB
f = 10kHz, VRIPPLE = 100mVP-P,
AVPGA = 0dB
With respect to fS within ripple; fS = 8kHz
to 48kHz
-3dB cutoff
f < fPLP
Stopband Cutoff
fSLP
With respect to fS; fS = 8kHz to 48kHz
Stopband Attenuation
DAC HIGHPASS DIGITAL FILTER
5th Order Passband Cutoff
(-3dB from Peak, I2C Register
Programmable) (Note 6)
fDHPPB
5th Order Stopband Cutoff
(-30dB from Peak, I2C Register
Programmable) (Note 6)
fDHPSB
DC Blocking
ADC
Full-Scale Input Voltage
Channel Gain Mismatch
DCAtten
0dBFS
f > fSLP, f = 20Hz to 20kHz
DVFLT = 0x1
(elliptical for 16kHz GSM)
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
DVFLT = 0x3
(elliptical for 8kHz GSM)
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
DVFLT = 0x1
(elliptical for 16kHz GSM)
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
DVFLT = 0x3
(elliptical for 8kHz GSM)
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
DVFLT ≠ 0x0
Differential MIC Input, AVPRE = 0dB,
AVPGA = 0dB
MIN TYP MAX UNITS
94
dB
71
0.448 x
Hz
fS
0.451
fS
±0.1
dB
0.476 x
Hz
fS
75
dB
0.0161
x fS
0.0312
x fS
0.0321
x fS
Hz
0.0625
x fS
0.0042
x fS
0.0139
x fS
0.0156
x fS
0.0279
x fS
Hz
0.0312
x fS
0.0021
x fS
90
dB
1
±0.3
VP-P
%
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