MAX9759(2005_10) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9759
(Rev.:2005_10)
(Rev.:2005_10)
Maxim Integrated
MAX9759 Datasheet PDF : 20 Pages
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3.2W, High-Efficiency, Low-EMI,
Filterless, Class D Audio Amplifier
Typical Operating Characteristics (continued)
(VDD = PVDD = SHDN = MUTE = 5V, GND = PGND = 0V, SYNC = VDD (SSM), unless otherwise noted. Gain = 12dB (G1 = 0, G2 = 1).
THD+N measurement bandwidth: 22Hz to 22kHz. Typical values are at TA = +25°C.) (See Typical Operating Circuit)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
9.0
FFM
8.5
TA = +85°C
8.0
TA = +25°C
7.5
7.0
TA = -40°C
6.5
6.0
5.5
5.0
4.5
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0.20
0.18 FFM
0.16
TA = +85°C
0.14
0.12
0.10
TA = +25°C
0.08
0.06
0.04
TA = -40°C
0.02
0
4.5 4.7 4.9 5.1 5.3 5.5
SUPPLY VOLTAGE (V)
PACKAGE TEMPERATURE
vs. TIME
60
50
RL = 3Ω AT 10% THD+N
40
RL = 4Ω AT 10% THD+N
30
20
RL = 8Ω AT 10% THD+N
MAX9759EVKIT
10 FREE AIR
TA = +25°C
fIN = 1kHz SINE WAVE
0
0 50 100 150 200 250 300
TIME (s)
Typical Operating Circuit/Functional Diagram
VDD
8
MUTE
10µF*
5
SHDN
16 G1
VDD
GND 15 G2
CONTROL
RF
1µF 2 IN+ RIN
1µF 3 IN- RIN
BIAS
RF
1µF
1
9, 12
VDD
PVDD
UVLO/POWER
MANAGEMENT
CLICK-AND-POP
SUPPRESSION
CLASS D
MODULATOR
PVDD
OUT+ 11
PVDD
OUT- 10
7 SYNC
OSCILLATOR
MAX9759
PGND
GND
6, 14
4
SYNC_OUT 13
NOTE: TYPICAL OPERATING CIRCUIT DEPICTS MAX9759 IN FFM MODE WITH fS = 1400kHz and +18dB OF GAIN.
*BULK CAPACITANCE, IF NEEDED.
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