參數(shù)資料
型號: MAX9765ETJ+T
廠商: Maxim Integrated Products
文件頁數(shù): 23/33頁
文件大小: 0K
描述: IC AMP AUDIO .75W STER AB 32TQFN
標(biāo)準(zhǔn)包裝: 2,500
類型: AB 類
輸出類型: 2-通道(立體聲)帶立體聲耳機(jī)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 750mW x 2 @ 4 歐姆; 65mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點(diǎn): 消除爆音,I²C,輸入多路復(fù)用器,麥克風(fēng),靜音,短路和熱保護(hù),關(guān)機(jī)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = 3.0V, GND = 0, HPS = MUTE = GND, SHDN = 3V, CBIAS = 1F, RIN = RF = 15k, RL = ∞. TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Capacitive Load Drive
CL
No sustained oscillations
400
pF
Slew Rate
SR
1.4
V/s
Crosstalk
fIN = 10kHz
73
dB
OUTPUT AMPLIFIERS (HEADPHONE MODE)
VDD = 2.7V to 5.5V
95
f = 1kHz, VRIPPLE = 200mVP-P
75
Power-Supply Rejection Ratio
PSRR
f = 20kHz, VRIPPLE = 200mVP-P
50
dB
RL = 32
40
Output Power
POUT
fIN = 1kHz, THD+N = 1%,
TA = +25
oC (Note 2)
RL = 16
35
65
mW
VOUT = 0.7RMS,
RL = 10k
0.002
POUT = 15mW,
RL = 32
0.005
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz, BW = 22Hz to
22kHz
POUT = 30mW,
RL = 16
0.004
%
Signal-to-Noise Ratio
SNR
RL = 8
, VOUT_ = 1.4VRMS,
BW = 20Hz to 22kHz
89
dB
Slew Rate
SR
0.7
V/s
Maximum Capacitive Load Drive
CL
No sustained oscillations
200
pF
Crosstalk
fIN = 10kHz
79
dB
BIAS VOLTAGE (BIAS)
BIAS Voltage
VBIAS
1.4
1.5
1.6
V
Output Resistance
RBIAS
50
k
MICROPHONE AMPLIFIER GENERAL
VDD - VOH
35
70
RL = 100k
VOL - GND
50
400
VDD - VOH
80
150
Output Voltage Swing
VOUT
RL = 2k
VOL - GND
70
400
mV
Slew Rate
SR
AV = 10dB
0.6
V/s
Output Short-Circuit Current
To VDD or GND
10
mA
Maximum Capacitive Load Drive
CL
No sustained oscillations
50
pF
DIFFERENTIAL INPUT AMPLIFIER (MICIN+, MICIN-)
Input Offset Voltage
VOS
25
mV
AV = 20dB
31
Input Noise-Voltage Density
eN
fIN = 1kHz
AV = 40dB
11.6
nV/
√Hz
Total Harmonic Distortion Plus
Noise
THD+N
VDD = 3V, VOUT = 0.35VRMS, AV = 10dB,
fIN = 1kHz, BW = 22Hz to 22kHz
0.01
%
Small-Signal Bandwidth
BW-3dB
AV = 40dB, VOUT = 100mVP-P
300
kHz
Input Resistance
RIN
MICIN_ to GND
100
k
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