參數(shù)資料
型號: MAX9702B
廠商: Maxim Integrated Products, Inc.
英文描述: 1.8W, Filterless, Stereo, Class D Audio Power Amplifier and DirectDrive Stereo Headphone Amplifier
中文描述: 1.8W的,濾波,立體聲D類音頻功率放大器和DirectDrive立體聲耳機放大器
文件頁數(shù): 4/32頁
文件大?。?/td> 1411K
代理商: MAX9702B
M
1.8W, Filterless, Stereo, Class D Audio Power
Amplifier and DirectDrive Stereo Headphone Amplifier
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (V
DD
= 3.3V) (continued)
(V
DD
= PV
DD
= CPV
DD
=
SHDN
= 3.3V, GND = PGND = CPGND = 0V, SYNC = V
DD
(SSM), speaker gain = +12dB, headphone gain
= +1dB. Speaker load R
L
connected between OUT+ and OUT-, unless otherwise noted, R
L
=
. Headphone load R
LH
connected
between HPR/HPL to GND. C
BIAS
= 1μF to GND, 1μF capacitor between C1P and C1N, C
VSS
= 1μF. T
A
= T
MIN
to T
MAX
, unless oth-
erwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HEADPHONE AMPLIFIERS (HPS = V
DD
)
T
A
= +25°C
T
MIN
to T
MAX
V
DD
= 2.5V to 5.5V
100mV
P-P
ripple,
V
IN
= 0V, T
A
= +25°C
±1.8
±6
±8
Output Offset Voltage
V
OS
mV
66
75
73
53
48
47
0.03
0.015
95.5
97.9
f
OSC
/2
65
f
RIPPLE
= 217Hz
f
RIPPLE
= 20kHz
R
L
= 32
R
L
= 16
Power-Supply Rejection Ratio
(Note 4)
PSRR
dB
Output Power
P
OUT
THD+N = 1%, V
DD
=
3.3V, T
A
= +25°C
R
L
= 16
(P
OUT
= 40mW, f = 1kHz)
R
L
= 32
(P
OUT
= 32mW, f = 1kHz)
V
OUT
= 1V
RMS
,
R
L
= 32
mW
Total Harmonic Distortion Plus
Noise
THD+N
%
BW = 22Hz to 22kHz
A-weighted
Signal-to-Noise Ratio
SNR
dB
Charge-Pump Frequency
f
CP
kHz
Into shutdown
Click-and-Pop Level
K
CP
Peak voltage, 32
samples/second,
A-weighted (Note 3)
Out of shutdown
85
dB
Slew Rate
SR
±1V output step
B4 = 0
B4 = 0
B4 = 1
B4 = 1
0.3
-2
+1
+4
+7
V/μs
B3 = 0
B3 = 1
B3 = 0
B3 = 1
Gain (see
I
2
C
Section)
A
V
dB
Channel-to-Channel Gain
Tracking
±0.2
%
Capacitance Drive
C
L
No sustained oscillations
300
pF
Crosstalk
L to R, R to L, f = 10kHz, R
L
= 16
,
P
OUT
= 10mW
In speaker mode
70
dB
HP_ Resistance to GND
DIGITAL INPUTS (
SHDN
, SYNC, SDA, SCL, HPS)
1
k
Input Voltage High,
SHDN
,
SYNC, HPS
V
INH
2
V
Input Voltage High, SCL
V
INH
0.7 x
V
DD
V
Input Voltage Low,
SHDN
, SYNC,
HPS
V
INL
0.8
V
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