參數(shù)資料
型號： MAX9875ERP+T
廠商： Maxim Integrated Products
文件頁數(shù)： 23/30頁
文件大小： 0K
描述： IC AUDIO SUBSYSTEM 20UCSP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
系列： DirectDrive®
類型： D 類
輸出類型： 1-通道（單聲道），帶立體聲耳機
在某負載時最大輸出功率 x 通道數(shù)量： 825mW x 1 @ 4 歐姆; 53mW x 2 @ 16 歐姆
電源電壓： 2.7 V ~ 5.25 V
特點： 消除爆音，差分輸入，I²C，靜音，短路和熱保護，關(guān)機，音量控制
安裝類型： 表面貼裝
供應商設備封裝： 20-UCSP
封裝/外殼： 20-WFBGA，CSPBGA
包裝： 帶卷 (TR)
MAX9875
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Preamp = 0dB
47
Preamp = +9dB
49
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz (differential
input mode)
Preamp = +20dB
42
dB
Input DC Voltage
IN__ inputs
1.22
1.3
1.38
V
Bias Voltage
VBIAS
1.13
1.2
1.27
V
SPEAKER AMPLIFIER (OUTMODE = 1)
TA = +25°C (volume at mute)
±0.5
±4
Output Offset Voltage
VOS
TA = +25°C (volume at 0dB,
OUTMODE = 1, IN_ = 0)
±1.5
mV
Into shutdown
-70
Click-and-Pop Level
KCP
Peak voltage, TA =
+25°C, A-weighted, 32
samples per second,
volume at mute (Note 4)
Out of shutdown
-70
dBV
PVDD = VDD =
2.7V to 5.5V
50
76
f = 217Hz,
100mVP-P ripple
72
f = 1kHz,
100mVP-P ripple
68
Power-Supply Rejection Ratio
(Note 4)
PSRR
TA = +25°C, PVDD =
VDD
f = 20kHz,
100mVP-P ripple
55
dB
ZSPK = 8 +
68H, VDD = 3.7V
725
ZSPK = 8 +
68H, VDD = 3.3V
560
ZSPK = 8 +
68H, VDD = 3.0V
465
ZSPK = 4 +
33H, VDD = 3.7V
825
Output Power (Note 5)
POUT
THD+N ≤ 1%
ZSPK = 4 +
33H, VDD = 3.0V
770
mW
Total Harmonic Distortion Plus
Noise
THD+N
f = 1kHz, POUT = 350mW, TA = +25°C,
ZSPK = 8 + 68H
0.05
%
IN_ = 0
(single-ended)
92
A-weighted,
OUTMODE = 1, 3,
4, 6
IN_ = 1 (differential)
94
IN_ = 0
(single-ended)
88
Signal-to-Noise Ratio
SNR
A-weighted,
OUTMODE = 7, 9
IN_ = 1 (differential)
92
dB
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VPVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, volume controls = 0dB, OSC = 00, SHDN = 1.
Speaker loads (ZSPK) connected between OUT+ and OUT-. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 3.3V. ZSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1F. TA = TMIN to TMAX, unless otherwise noted. Typical values are
at TA = +25°C.) (Note 3)
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