MAX9723BETE+T Maxim Integrated Products, MAX9723BETE+T Datasheet - Page 7

• Manufacturer Part Number: MAX9723BETE+T
• Description: IC AMP AUDIO .06W STER AB 16TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9723BETE+T

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 60mW x 2 @ 16 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: Bass Boost, Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. T
(See Functional Diagram/Typical Operating Circuit)
DD
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
-100
-120
-100
-110
-120
-130
-140
-20
-40
-60
-80
-10
-40
-50
-60
-70
-80
-90
20
15
10
-5
0
5
0
_______________________________________________________________________________________
Stereo DirectDrive Headphone Amplifier
10
10
0
with BassMax, Volume Control, and I
V
R
A = 0dB
IN
L
= 32Ω
BassMax DISABLED
= 1V
LEFT TO RIGHT
BASS BOOST FREQUENCY
R2 = 36kΩ
C3 = 0.068μF
100
100
P-P
OUTPUT SPECTRUM
5
A = 0dB
R2 = 22kΩ
C3 = 0.1μF
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (kHz)
FREQUENCY (Hz)
R2 = 10kΩ
C3 = 0.22μF
FREQUENCY (Hz)
CROSSTALK
RESPONSE
10
1k
1k
RIGHT TO LEFT
A = 0dB
10k
NO LOAD
R1 = 47kΩ
10k
15
R
V
f
IN
L
DD
Typical Operating Characteristics (continued)
= 32Ω
= 1kHz
= 3V
100k
100k
20
-100
-120
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-20
-40
-60
-80
-1
-2
-3
-4
-5
-6
-7
0
1
0
0
10
10
0
V
R
A = -10dB
NO HEADPHONE LOAD
CHARGE-PUMP LOAD
CONNECTED
BETWEEN PV
CHARGE-PUMP OUTPUT VOLTAGE
IN
L
25
= 32Ω
= 1V
100
100
P-P
vs. OUTPUT CURRENT
50
RIGHT TO LEFT
OUTPUT CURRENT (mA)
GAIN FLATNESS
vs. FREQUENCY
vs. FREQUENCY
A = -10dB
SS
FREQUENCY (Hz)
FREQUENCY (Hz)
A
CROSSTALK
75
AND PGND
= +25°C, unless otherwise noted.)
100
1k
1k
125
LEFT TO RIGHT
A = -10dB
10k
10k
150
175
100k
100k
200
2
C
7