MAX9759 Maxim Integrated Products, MAX9759 Datasheet - Page 9

• Manufacturer Part Number: MAX9759
• Description: 3.2W High-Efficiency Low-EMI Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

(V
THD+N measurement bandwidth: 22Hz to 22kHz. Typical values are at T
DD
9.0
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
= PV
3.0
FFM
DD
3.5
= SHDN = MUTE = 5V, GND = PGND = 0V, SYNC = V
vs. SUPPLY VOLTAGE
T
A
3.2W, High-Efficiency, Low-EMI, Filterless,
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
= +25°C
GND
4.0
V
1µF
1µF
_______________________________________________________________________________________
DD
(13)
T
(6)
(5)
(8)
(9)
16
15
4.5
A
2
3
7
( ) TSSOP
= +85°C
G2
G1
IN+
IN-
SYNC
NOTE: TYPICAL OPERATING CIRCUIT DEPICTS MAX9759 IN FFM MODE WITH f
*
BULK CAPACITANCE, IF NEEDED.
T
A
5.0
= -40°C
R
R
MUTE
8
(14)
IN
IN
CONTROL
5.5
OSCILLATOR
BIAS
SHDN
5
(11)
10µF
R
R
F
F
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
*
Typical Operating Characteristics (continued)
0
Typical Operating Circuit/Functional Diagram
4.5
FFM
1µF
SHUTDOWN SUPPLY CURRENT
4.7
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
T
MANAGEMENT
V
UVLO/POWER
A
DD
(4, 12)
= +85°C
6, 14
4.9
1
(7)
V
PGND
MODULATOR
DD
MAX9759
CLASS D
Class D Audio Amplifier
DD
T
A
= -40°C
5.1
(SSM), unless otherwise noted. Gain = 12dB (G1 = 0, G2 = 1).
A
9, 12
(2, 15)
PV
T
= +25°C.) (See Typical Operating Circuit)
A
DD
= +25°C
CLICK-AND-POP
GND
5.3
SUPPRESSION
(10)
4
S
= 1400kHz and +18dB OF GAIN.
5.5
60
50
40
30
20
10
PV
PV
0
DD
DD
0
MAX9759EVKIT
FREE AIR
T
f
IN
A
SYNC_OUT
= +25°C
= 1kHz SINE WAVE
50
PACKAGE TEMPERATURE
OUT+
OUT-
100
13
(3)
www.DataSheet4U.com
11
(1)
10
(16)
vs. TIME
TIME (s)
R
150
R
L
R
L
= 8Ω AT 10% THD+N
L
= 3Ω AT 10% THD+N
= 4Ω AT 10% THD+N
200
250
300
9