MAX9850ETI+T Maxim Integrated Products, MAX9850ETI+T Datasheet - Page 8

• 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

Stereo Audio DAC with DirectDrive
Headphone Amplifier
(DV
f
otherwise noted. f
8
MCLK
0.001
0.001
0.001
0.01
0.01
0.01
0.1
0.1
0.1
DD
10
10
10
_______________________________________________________________________________________
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= 12.288MHz, master integer mode, headphone volume set to +6dB, both channels driven in-phase, T
= AV
10
0
0
AV
R
AV
R
AV
R
L
L
L
DD
= 32Ω
(LINE IN TO HP) vs. POWER OUT
DD
DD
= 32Ω
= 32Ω
DD
(DAC TO HP) vs. POWER OUT
(DAC TO HP) vs. FREQUENCY
= 1.8V
= 1.8V
= 3.0V
f
10
20
IN
100
= PV
= 1kHz
IN
POWER OUT (mW)
POWER OUT (mW)
FREQUENCY (Hz)
P
P
OUT
OUT
DD
= 984.375Hz, A-weighted THD+N.)
20
40
= 3mW
f
= 15mW
IN
1k
= 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47µF, C2 = 2.2µF, C
= 1kHz
f
IN
30
60
= 10kHz
f
IN
f
= 20Hz
IN
10k
f
IN
= 10kHz
40
80
= 20Hz
100k
100
50
0.001
0.001
0.001
0.01
0.01
0.01
0.1
0.1
Typical Operating Characteristics (continued)
0.1
10
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
0
AV
R
AV
R
AV
R
(DAC TO LINE OUT) vs. FREQUENCY
L
L
L
(LINE IN TO HP) vs. POWER OUT
DD
DD
DD
= 10kΩ
= 16Ω
= 32Ω
f
(DAC TO HP) vs. POWER OUT
IN
= 1.8V TO 3.0V
= 3.0V
= 3.0V
20
20
= 1kHz
f
IN
100
V
f
= 1kHz
IN
OUT
= 10kHz
POWER OUT (mW)
POWER OUT (mW)
FREQUENCY (Hz)
= 2V
40
40
f
IN
f
P-P
IN
= 10kHz
1k
= 20Hz
60
60
f
IN
= 20Hz
10k
80
80
100k
100
100
NREG
0.001
0.001
0.001
0.01
0.01
0.01
0.1
0.1
0.1
10
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= C
10
10
0
AV
R
AV
R
AV
R
L
L
PREG
L
(LINE IN TO HP) vs. POWER OUT
DD
DD
= 16Ω
= 16Ω
DD
= 16Ω
(DAC TO HP) vs. FREQUENCY
(DAC TO HP) vs. FREQUENCY
= 1.8V
= 3.0V
= 3.0V
20
100
100
P
P
= C
OUT
OUT
P
POWER OUT (mW)
P
OUT
= 5mW
= 21mW
FREQUENCY (Hz)
FREQUENCY (Hz)
OUT
REF
40
f
= 10mW
IN
= 60mW
A
= 10kHz
1k
1k
= 1µF, f
= +25°C, unless
f
IN
60
f
IN
= 20Hz
= 1kHz
10k
10k
S
= 48kHz,
80
100k
100k
100