Rainbow Electronics MAX98088 - Manual (Page 15)

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
15
ELECTRICAL CHARACTERISTICS (continued)
(V AVDD = V PVDD = V DVDD = V DVDDS1 = V DVDDS2 = +1.8V, V SPKLVDD = V SPKRVDD = 3.7V. Speaker loads (Z SPK ) connected
between SPK_P and SPK_N. Receiver load (R REC ) connected between RECP and RECN. Headphone loads (R HP ) connected from
HPL or HPR to HPGND. Line out loads (R LOAD ) connected from LOUTL and LOUTR to ground. R LOAD = R HP = J, R REC = J, Z SPK
= J, C REF = 2.2FF, C MICBIAS = C REG = 1FF, C C1N-C1P = 1FF, C HPVDD = C HPVSS = 1FF. AV MICPRE_ = +20dB, AV MICPGA_ = 0dB,
AV DACATTN = 0dB, AV DACGAIN = 0dB, AV ADCLVL = 0dB, AV ADCGAIN = 0dB, AV PGAIN_ = 0dB, AV HP_ = 0dB, AV REC = 0dB, AV SPK_
= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. T A = +25NC, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DAC TO SPEAKER AMPLIFIER PATH
Total Harmonic Distortion
+ Noise
THD+N f = 1kHz, P OUT = 200mW, Z SPK = 8I + 68FH -68 dB
Crosstalk
SPKL to SPKR and SPKR to SPKL,
P
OUT = 640mW, f = 1kHz
-88 dB
Output Noise 53 F V RMS
Click-and-Pop Level K CP
Peak voltage, A-weighted,
32 samples per second,
AV
SPK_ = 0dB
Into shutdown 65
dBV
Out of shutdown 66
MIC INPUT TO SPEAKER AMPLIFIER PATH
Dynamic Range (Note 4)
DR Referenced to full-scale output level, AV SPK_ = 0dB 82 dB
Total Harmonic Distortion
+ Noise
THD+N f = 1kHz, P OUT = 200mW, R L = 8I + 68FH 71 dB
Click-and-Pop Level K CP
Peak voltage, A-weighted, 32
samples per second, AV
SPK_
= 0dB
Into shutdown 55
dBV
Out of shutdown 52
SPEAKER AMPLIFIER
Output Power P
OUT
f = 1kHz, THD
= 1%,
Z
SPK = 8I +
68FH
V SPKLVDD = V SPKRVDD = 5.0V 1323
mW
V SPKLVDD = V SPKRVDD = 4.2V 914
V SPKLVDD = V SPKRVDD = 3.7V 700
V SPKLVDD = V SPKRVDD = 3.2V 514
Full-Scale Output (Note 7) 2 V RMS
Volume Control AV SPK_ (Note 5)
SPVOLL/SPVOLR = 0x00 -62
dB
SPVOLL/SPVOLR = 0x1F +8
Volume Control Step Size
+8dB to +6dB 0.5
dB
+6dB to +0dB 1
0dB to -14dB 2
-14dB to -38dB 3
-38dB to -64dB 4
Mute Attenuation f = 1kHz 86 dB
Output Offset Voltage V OS AV SPK_ = -61dB, T A = +25NC Q 0.5 Q 3 mV