max9758etjt Maxim Integrated Products, Inc., max9758etjt Datasheet - Page 11
max9758etjt
Manufacturer Part Number
max9758etjt
Description
2.3w Stereo Speaker Amplifiers And Directdrive Headphone Amplifiers With Automatic Level Control
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX9758ETJT.pdf
(31 pages)
(V
1µF, C
22kHz, T
MAX9756 MAX9757
Headphone Amplifiers with Automatic Level Control
DD
6, 22
9,19
1
2
3
4
5
7
8
= PV
PVSS
A
DD
= +25°C, unless otherwise noted.)
2.3W Stereo Speaker Amplifiers and DirectDrive
= 1µF, C1 = C2 = 1µF, PREF = unconnected, GAIN1 = 1, GAIN2 = GAIN3 = VOL = 0V, measurement BW = 22Hz to
= HPV
5, 21
8,18
PIN
32
110
100
1
2
3
4
6
7
90
80
70
60
50
40
30
20
10
10
DD
______________________________________________________________________________________
C
10Hz TO 100kHz
OUT
= CPV
LOAD-TRANSIENT RESPONSE
MAX9758
= 2µF
100
vs. FREQUENCY (LDO)
5, 21
8, 18
32
1
2
3
4
6
7
DD
OUTPUT NOISE
FREQUENCY (Hz)
= IN = +5.0V, GND = PGND = CPGND = 0V, SHDN = V
20µs/div
1k
OUTL+
NAME
GAIN1
GAIN2
GAIN3
OUTL-
PGND
BEEP
PV
INL
DD
10k
MAX9756 toc43
Left-Channel Audio Input
Gain Control Input 1
Gain Control Input 2
Gain Control Input 3
Audible Alert Beep Input
Power Ground
Left-Channel Positive Speaker Output
Left-Channel Negative Speaker Output
Speaker Amplifier Power Supply. Bypass with 1µF ceramic capacitor to PGND.
Typical Operating Characteristics (continued)
100k
50V
I
25mV/div
LDO_OUT = 4.65V
20mV/div
0V
LOAD
FUNCTION
LINE-TRANSIENT RESPONSE
LDO SHUTDOWN RESPONSE
DD
, REGEN = DR = SET = GND, C
100ms/div
40µs/div
Pin Description
MAX9756 toc42
MAX9756 toc44
V
500mV/div
5.5V
4.5V
LDO_OUT
20mV/div
LDO_OUT
1V/div
REGEN
5V/div
IN
BIAS
11
=