MAX9888 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX9888 Datasheet PDF : 115 Pages
| |||
Stereo Audio CODEC
with FLEXSOUND Technology
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VHPVDD = VDVDD = VDVDDS1 = VDVDDS2 = +1.8V, VSPKLVDD = VSPKRVDD = 3.7V. Speaker loads (ZSPK) connected
between SPK_P and SPK_N. Receiver load (RREC) connected between RECP and RECN. Headphone loads (RHP) connected from
HPL or HPR to GND. RHP = J, RREC = J, ZSPK = J, CREF = 2.2FF, CMICBIAS = CPREG = CREG = 1FF, CC1N-C1P = 1FF, CHPVSS
= 1FF. AVMICPRE_ = +20dB, AVMICPGA_ = 0dB, AVDACATTN = 0dB, AVDACGAIN = 0dB, AVADCLVL = 0dB, AVADCGAIN = 0dB,
AVPGAIN_ = 0dB, AVPGAOUT_ = 0dB, AVHP_ = 0dB, AVREC = 0dB, AVSPK_ = 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.
TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
LINE INPUT PREAMP
Full-Scale Input
SYMBOL
CONDITIONS
VIN
AVPGAIN_ = 0dB
AVPGAIN_ = -6dB
PGAINA/PGAINB = 0x0
PGAINA/PGAINB = 0x1
MIN TYP MAX UNITS
1
1.4
VP-P
19
20
21
13
14
15
Level Adjust Gain
PGAINA/PGAINB = 0x2
AVPGAIN_ PGAINA/PGAINB = 0x3
(Note 5)
2
3
4
dB
TA = +25NC
0
PGAINA/PGAINB = 0x4
-4
-3
-2
PGAINA/PGAINB = 0x5, 0x6, 0x7
AVPGAIN_ = +20dB
AVPGAIN_ = +14dB
Input Resistance
RIN
AVPGAIN_ = +3dB
AVPGAIN_ = 0dB
AVPGAIN_ = -3dB
AVPGAIN_ = -6dB
Feedback Resistance
RIN_FB INAEXT/INBEXT = 1
TA = +25NC
TA = TMIN to TMAX
ADC LEVEL CONTROL
ADC Level Adjust Range
AVADCLVL AVL/AVR = 0xF to 0x0 (Note 5)
ADC Level Adjust Step Size
ADC Gain Adjust Range
AVADCGAIN AVLG/AVRG = 00 to 11 (Note 5)
ADC Gain Adjust Step Size
ADC DIGITAL FILTERS
VOICE MODE IIR LOWPASS FILTER (MODE1 = 0)
Passband Cutoff
Ripple limit cutoff
fPLP
-3dB cutoff
Passband Ripple
f < fPLP
Stopband Cutoff
fSLP
Stopband Attenuation (Note 6)
f > fSLP
-7
-6
14.6
21
20
20
7.3
10
20
20
18.5
20
17.5
-12
1
0
6
0.441
x fs
0.449
x fs
-0.1
74
-5
27.4
kI
13.7
21.5
kI
23
+3
dB
dB
18
dB
dB
Hz
+0.1 dB
0.47
x fs
Hz
dB
9
Share Link: 