MAX9856ETL+ Maxim Integrated Products, MAX9856ETL+ Datasheet - Page 4

• Manufacturer Part Number: MAX9856ETL+
• Description: IC CODEC AUDIO LP 40TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Audio Codecr

Specifications of MAX9856ETL+

• Data Interface: Serial
• Resolution (bits): 18 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 77 / 91
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 91
• Voltage - Supply, Analog: 1.71 V ~ 3.6 V
• Voltage - Supply, Digital: 1.71 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-WFQFN Exposed Pad
• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Interface Type: I2C
• Resolution: 18 bit
• Operating Supply Voltage: 1.71 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Current: 2.9 mA
• Thd Plus Noise: 82 dB
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 2
• No. Of Output Channels: 2
• Adc / Dac Resolution: 18bit
• Adcs / Dacs Signal To Noise Ratio: 91dB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
C
otherwise noted. Typical values are at T
4
STEREO ADC (Note 6)
Gain Error
Full-Scale Conversion
Channel Gain Mismatch
ADC DYNAMIC SPECIFICATIONS
Dynamic Range (Note 4)
Total Harmonic Distortion
Signal-to-Noise Ratio
Channel Crosstalk
Power-Supply Rejection Ratio
(Note 7)
ADC DIGITAL FILTER PATH
Passband Cutoff
Passband Ripple
Stopband Cutoff
Stopband Attenuation
Attenuation at f
ADC HIGHPASS FILTER
-3dB Corner Frequency
(f
DC Attenuation
DC Output Offset
NREG
AVDD
S
= 44.1kHz)
_______________________________________________________________________________________
= 1µF, A
= V
PARAMETER
CPVDD
S
VPRE
/2
= V
= +20dB, C
DVDDS2
= V
MICBIAS
DVDD
SYMBOL
DC
0dBFS
HP
PSRR
A
THD
SNR
ATTEN
f
f
= 1.8V, R
= +25°C.) (Note 1)
FILT
P
S
= 1µF, A
f
f
f
A-weighted
f
A-weighted
1kHz, 0dBFS, f
1kHz, 0dBFS, f
1kHz, 0dBFS, f
20kHz, A-weighted
1kHz, 0dBFS, f
20kHz, A-weighted
Driven channel at -1dBFS, f
f
V
f = 1kHz, V
f = 10kHz, V
-0.2dB from peak
f < f
f > f
ADCHP = 000
ADCHP = 001; LRCLK/1598
ADCHP = 010; LRCLK/798
ADCHP = 011; LRCLK/398
ADCHP = 100; LRCLK/197
ADCHP = 101; LRCLK/97
ADCHP = 110; LRCLK/47
ADCHP = 111; LRCLK/22
ADCHP anything other than 000
ADCHP = 000
IN
S
S
S
S
AVDD
HP
VMICPGA
= 8kHz to 32kHz, BW = 22Hz to f
= 44.1kHz, BW = 22Hz to 20kHz,
= 48kHz, BW = 22Hz to 20kHz,
= 8kHz
= 1kH
P
S
= 32Ω, R
= 1.71V to 3.6V
Z
, line input PGA = 0dB
RIPPLE
= 0dB, MCLK = 11.2896MHz, DRATE = 00, T
RIPPLE
LINE
S
S
S
S
CONDITIONS
= 8kHz
= 48kHz
= 8kHz, BW = 22Hz to
= 48kHz, BW = 22Hz to
= 100mV
= 100mV
= 10kΩ, C1 = 4.7µF, C2 = 4.7µF, C
IN
= 1kHz,
S
/2
MIN
78
60
Disabled
-6.02
2004
±0.1
REF
TYP
0.44
0.56
100
111
224
455
938
-63
-68
-40
±1
±1
A
80
84
85
77
77
65
80
50
60
28
55
90
2
= T
= C
MIN
MBIAS
MAX
±5
to T
MAX
= C
UNITS
dBFS
, unless
PREG
V
dB
dB
dB
dB
dB
dB
dB
dB
Hz
dB
%
%
f
f
P-P
S
S
=