
MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
4
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ELECTRICAL CHARACTERISTICS (continued)
(AVDD = CPVDD = +3V, DVDD = DVDDS2 = +1.8V, PVDD = +3.3V, RHP = 32
Ω, ZSPK = 8Ω + 10H, RREC = 32Ω, ROUTL+ to ROUTL- =
10k
Ω, ROUTR+ to ROUTR- = 10kΩ, C1 = 0.22F, C2 = CNREG = CPREG = CINTMICBIAS, CMBIAS = CREF = 1F, MCLK = 13MHz, all
PGAs = 0dB, HP/REC volume = -20.0dB, SPK volume = -20.4dB, line output gain = -0.4dB, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (See Functional Diagrams/Typical Operating Circuits).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Stereo headphone
11.9
Stereo speaker
(MAX9851)/line output
(MAX9853)
11.2
Full-duplex voice
mode, no output
loads
Mono receiver
11.1
14.5
Stereo headphone
11.9
Stereo speaker
(MAX9851)/line output
(MAX9853)
11.2
Full-duplex voice
mode plus DAC
playback mode,
no output loads
(Notes 1, 2)
Mono receiver
11.1
ADC record mode (Note 3)
12.2
Analog Supply Current
AIDD
ADC record mode plus DAC headphone
playback mode (Notes 1, 3)
18.2
24.0
mA
Mono Class D speaker mode
5
Stereo Class D speaker mode
10
14
mA
Speaker Supply Current (Note 4)
PIDD
Sleep mode (MAX9851, MAX9853)
2
15
A
Playback operation (Note 1), no output
loads
2.7
3.7
Full duplex voice operation (Note 2), no
output loads, TA = +25°C
6.2
7.8
Digital Supply Current
DIDD
Record operation (Notes 1, 3)
3.9
5.2
mA
Analog Shutdown Current
AISHDN
IAVDD + ICPVDD, TA = +25°C
1.4
20
A
Digital Shutdown Current
DISHDN
IDVDD + IDVDDS2 , TA = +25°C
0.5
10
A
MAX9851
1
20
PVDD Shutdown Current
(Note 4)
PISHDN
IPVDD, TA = +25°C
MAX9853
0.1
5
A
Shutdown to Full Operation
tON
ADC and DAC fully operational, master
mode
70
ms
DAC PERFORMANCE (Note 5) (DAC in Master Mode)
Gain Error
±1
±7
%
Channel Gain Matching
±1
%
fS = 8kHz (voice modes), headphone
volume = +5.5dB
75.5
Dynamic Range (Note 6)
DR
fS = 8kHz and 48kHz (stereo audio modes),
headphone volume = +5.5dB
84
87.5
dB