參數(shù)資料
型號: MAX9752AETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 24/29頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 2.2W D 28TQFN
標(biāo)準(zhǔn)包裝: 2,500
系列: DirectDrive®
類型: D 類
輸出類型: 2-通道(立體聲)帶立體聲耳機
在某負載時最大輸出功率 x 通道數(shù)量: 2.2W x 2 @ 4 歐姆; 62mW x 2 @ 16 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點: 消除爆音,短路保護和熱保護,關(guān)機,音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9752/MAX9753/MAX9754
2.2W, Low-EMI, Stereo, Class D Power Amplifiers
with DirectDrive Headphone Amplifiers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = HPVDD = CPVDD = +5.0V, GND = PGND = HPGND = 0V, VSHDN = VDD, CPVSS = VSS, CBIAS = 1F,
CCPVSS = 1F, C1 = 1F, speaker impedance = 8
Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;
MAX9752: GAIN1 = GAIN2 = 0, VVOL = 0V; MAX9753: GAIN = 0, VA/B = 0V; MAX9754: GAIN = 0; TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HEADPHONE AMPLIFIER (HPS = VDD)
TA = +25°C
±0.5
±3.5
Output Offset Voltage
VOS
TA = TMIN to TMAX
±8
mV
GAIN2 = 0
0
MAX9752,
GAIN1 = don’t care
GAIN2 = 1
3
GAIN = 1
0
Maximum Headphone Amplifier
Gain (Note 6)
AV_HP
MAX9753/MAX9754
GAIN = 0
3
dB
HPVDD or VDD = 3V to 5.5V, TA = +25°C
66
73
f = 1kHz, VRIPPLE = 100mVP-P
80
Power-Supply Rejection Ratio
(Note 3)
PSRR
f = 10kHz, VRIPPLE = 100mVP-P
60
dB
RL = 32
Ω
31
Output Power
POUT_HP
THD+N = 1%, fIN =
1kHz, TA = +25°C
RL = 16
Ω
62
mW
RL = 32
Ω,
POUT = 31mW
0.005
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz
RL = 16
Ω,
POUT = 62mW
0.005
%
Unweighted
95
Signal-to-Noise Ratio
SNR
RL = 32
Ω,
POUT = 31mW,
fIN = 1kHz,
BW = 22Hz to 22kHz
A-weighted
101
dB
Into shutdown
-33
Click-and-Pop Level (Note 7)
KCP
Out of shutdown
-37
dBV
Capacitive-Load Drive
CL_MAX
No sustained oscillations
300
pF
Crosstalk
f = 10kHz, POUT = 62mW, RL = 16
Ω
60
dB
Off-Isolation
MAX9753, unselected input to any active
input, f = 10kHz
60
dB
Slew Rate
SR
0.8
V/s
Output Impedance
HPS = GND (disabled)
1
k
Ω
CHARGE PUMP
Charge-Pump Frequency
fCP
540
600
660
kHz
VOLUME CONTROL (MAX9752 Only)
VOL Input Impedance
RVOL
100
M
Ω
VOL Input Hysteresis
HYSTVOL
VVOL falling
50
mV
Full Mute Input Voltage
VVOL_MUTE
0.858 x
VDD
V
Full Mute Attenuation
AV_MUTE
fIN = 1kHz
-85
dB
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