參數(shù)資料
型號： MAX9875ERP+T
廠商： Maxim Integrated Products
文件頁數(shù)： 25/30頁
文件大?。?/td> 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
4
_______________________________________________________________________________________
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)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Spread-spectrum modulation mode,
OSC = 00
1176
±60
Fixed-frequency mode, OSC = 01
1100
Output Frequency
Fixed-frequency mode, OSC = 10
700
kHz
Current Limit
1.5
A
Efficiency
η
POUT = 600mW, f = 1kHz
87
%
Speaker Gain
AV
11.5
12.0
12.5
dB
Output Noise
A-weighted, OUTMODE = 1,
IN_ = 0
(Note 4)
63
VRMS
HEADPHONE AMPLIFIERS (OUTMODE = 2)
TA = +25°C (volume at mute)
±0.15
±0.6
Output Offset Voltage
VOS
TA = +25°C (volume at 0dB)
±1.6
mV
Into shutdown
-80
Click-and-Pop Level
KCP
Peak voltage, TA =
+25°C, A-weighted,
32 samples per
second. volume at
mute (Note 4)
Out of shutdown
-80
dBV
PVDD = VDD = 2.7V
to 5.25V
70
85
f = 217Hz,
VRIPPLE = 100mVP-P
84
f = 1kHz,
VRIPPLE = 100mVP-P
80
Power-Supply Rejection Ratio
(Note 4)
PSRR
TA = +25°C, PVDD =
VDD
f = 20kHz,
VRIPPLE = 100mVP-P
62
dB
RHP = 16
53
Output Power
POUT
THD+N ≤ 1%
RHP = 32
27
mW
Headphone Gain
AV
-0.4
0
+0.4
dB
Channel-to-Channel Gain
Tracking
TA = +25°C, HPL to HPR, volume at 0dB,
OUTMODE = 2, 5;
IN_ = 0
±0.3
±2.5
%
RHP = 32
(POUT = 10mW, f = 1kHz)
0.016
Total Harmonic Distortion Plus
Noise
THD+N
RHP = 16
(POUT = 10mW, f = 1kHz),
TA = +25°C
0.03
%
IN_ = 0
(single-ended)
98
A-weighted,
OUTMODE = 2, 3,
5, 6; RHP = 16
IN_ = 1 (differential)
98
IN_ = 0
(single-ended)
96
Signal-to-Noise Ratio
SNR
A-weighted, RHP =
16, OUTMODE =
8, 9
IN_ = 1 (differential)
96
dB
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