MAX9850ETI+T Maxim Integrated Products, MAX9850ETI+T Datasheet - Page 7

• Manufacturer Part Number: MAX9850ETI+T
• Description: IC AMP AUDIO .095W STER 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9850ETI+T

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 95mW x 2 @ 16 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: DAC, Depop, Digital Inputs, I²C, I²S, Line Level Inputs & Outputs, Mute, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-WQFN Exposed Pad, 28-HWQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL POWER DISSIPATION AT AV
Note 5: DAC SNR measured from DAC inputs to OUTL and OUTR.
Note 6: Headphone amplifier SNR measured from line inputs to headphone outputs.
Note 7: GPIO is 100kΩ to ground when DV
Note 8: C
Note 9: f
(DV
f
otherwise noted. f
Full Operation (Note 1)
DAC to Line Outputs, Headphones Disabled
Line Inputs to Line Outputs and Headphone
Outputs, DAC Disabled
Line Inputs to Line Outputs, DAC and
Headphones Disabled
Full Shutdown
MCLK
0.001
0.01
DD
0.1
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
= 12.288MHz, master integer mode, headphone volume set to +6dB, both channels driven in-phase, T
= AV
0
ICLK
B
AV
R
L
DD
is in pF.
DD
= 16Ω
(DAC TO HP) vs. POWER OUT
10
f
IN
f
= 1.8V
derived by dividing f
IN
= 10kHz
= PV
= 20Hz
IN
20
POWER OUT (mW)
DD
= 984.375Hz, A-weighted THD+N.)
_______________________________________________________________________________________
MODE
= 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47µF, C2 = 2.2µF, C
30
40
f
IN
= 1kHz
MCLK
50
Stereo Audio DAC with DirectDrive
by 1, 2, 3, or 4. See the Registers and Bit Descriptions section.
60
DD
< V
0.001
0.01
0.1
10
1
OH
TOTAL HARMONIC DISTORTION PLUS NOISE
AV
0
< 3.6V.
AV
R
DD
L
3.11mW
4.93mW
3.22mW
1.39mW
(LINE IN TO HP) vs. POWER OUT
DD
2.7µW
= 16Ω
10
DD
f
= 1.8V
POWER
IN
= 1kHz
= 1.8V (No Headphone/Line Output Load)
20
POWER OUT (mW)
30
Typical Operating Characteristics
f
DV
IN
40
Headphone Amplifier
= 20Hz
f
IN
0.085mW
0.085mW
DD
3.76mW
3.76mW
= 10kHz
0.5µW
50
POWER
60
NREG
0.001
0.01
0.1
10
PV
1
TOTAL HARMONIC DISTORTION PLUS NOISE
= C
DD
0
5.00mW
3.22mW
3.40mW
1.61mW
<0.1µW
AV
R
PREG
L
POWER
DD
= 32Ω
(DAC TO HP) vs. POWER OUT
= 1.8V
10
f
IN
= C
= 10kHz
POWER OUT (mW)
REF
20
A
= 1µF, f
TOTAL POWER
= +25°C, unless
30
13.70mW
10.10mW
6.71mW
3.08mW
3.2µW
f
IN
S
f
IN
= 20Hz
= 48kHz,
40
= 1kHz
50
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