MAX9790AETJ+ Maxim Integrated Products, MAX9790AETJ+ Datasheet - Page 8

• Manufacturer Part Number: MAX9790AETJ+
• Description: IC AMP AUDIO 2W STER AB 32TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9790AETJ+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2W x 2 @ 4 Ohm; 100mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• For Use With: MAX9789AEVKIT+ - EVALUATION KIT FOR MAX9789A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
(V
unless otherwise specified, GAIN1 = 0, GAIN2 = 1 (A
unless otherwise noted. Headphone mode: SPKR_EN = 1, HP_EN = 0. Speaker mode: SPKR_EN = 0, HP_EN = 1.)
8
DD
-100
-105
-110
-100
-105
-110
0.01
-65
-70
-75
-80
-85
-90
-95
-65
-70
-75
-80
-85
-90
-95
0.1
10
_______________________________________________________________________________________
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
10
10
vs. OUTPUT POWER (HEADPHONE MODE)
0
vs. FREQUENCY (HEADPHONE MODE)
vs. FREQUENCY (HEADPHONE MODE)
FS = 0.300V
R
HPV
FS = 0.300V
R
V
L
L
OUT
DD
= 32Ω
= 16Ω
DD
V
f = 20Hz
OUT
= -3dB FS
= CPV
= 3V
100
100
= -3dB FS
OUTPUT POWER (mW)
RMS
RMS
50
FREQUENCY (Hz)
FREQUENCY (Hz)
DD
1k
1k
= HPV
f = 1kHz
100
DD
f = 10kHz
10k
10k
HPV
R
L
= LDO_EN = +5V, GND = PGND = CPGND = LDO_SET = 0V, C1 = C2 = C
= 16Ω
DD
= 3V
100k
100k
150
-100
-105
-110
0.01
0.01
-65
-70
-75
-80
-85
-90
-95
Typical Operating Characteristics (continued)
0.1
0.1
10
10
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
vs. OUTPUT POWER (HEADPHONE MODE)
vs. OUTPUT POWER (HEADPHONE MODE)
0
0
VSP
vs. FREQUENCY (HEADPHONE MODE)
HPV
FS = 0.300V
R
L
= 32Ω
= 10dB, A
DD
V
OUT
20
= 3V
f = 1kHz
100
f = 20Hz
50
f = 1kHz
= -3dB FS
OUTPUT POWER (mW)
OUTPUT POWER (mW)
RMS
f = 20Hz
FREQUENCY (Hz)
40
VHP
100
1k
= 3.5dB), measurement BW = 20kHz AES17, T
60
f = 10kHz
f = 10kHz
10k
150
HPV
R
L
R
80
= 32Ω
L
DD
= 16Ω
= 3V
100k
200
100
-100
-105
-110
-100
-110
0.01
-65
-70
-75
-80
-85
-90
-95
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
10
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
vs. OUTPUT POWER (HEADPHONE MODE)
10
0
vs. FREQUENCY (HEADPHONE MODE)
vs. FREQUENCY (HEADPHONE MODE)
FS = 0.300V
R
V
L
LEFT TO RIGHT
OUT
= 16Ω
= -3dB FS
20
f = 20Hz
100
100
RMS
OUTPUT POWER (mW)
f = 1kHz
BIAS
FREQUENCY (Hz)
FREQUENCY (Hz)
CROSSTALK
RIGHT TO LEFT
40
= C
1k
1k
IN
A
60
= 1µF. R
FS = 0.300V
V
R
= +25°C,
OUT
L
= 32Ω
f = 10kHz
10k
10k
= -20dB FS
80
R
L
= 32Ω
RMS
L
= ∞,
100k
100k
100