MAX9759 데이터 시트보기 (PDF) - Maxim Integrated
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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
(14)
MUTE
10µF*
5
(11)
SHDN
16
(6) G1
VDD
GND
G2
15
(5)
CONTROL
RF
1µF
2
(8) IN+
RIN
1µF
3
(9) IN-
RIN
BIAS
RF
1µF
1
9, 12
(7)
(2, 15)
VDD
PVDD
UVLO/POWER
MANAGEMENT
CLICK-AND-POP
SUPPRESSION
CLASS D
MODULATOR
PVDD
11
OUT+ (1)
PVDD
OUT- 10
(16)
7
(13) SYNC
OSCILLATOR
MAX9759
13
SYNC_OUT (3)
PGND
GND
( ) TSSOP
6, 14
4
(4, 12)
(10)
NOTE: TYPICAL OPERATING CIRCUIT DEPICTS MAX9759 IN FFM MODE WITH fS = 1400kHz and +18dB OF GAIN.
*BULK CAPACITANCE, IF NEEDED.
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