參數(shù)資料
型號： MAX9875ERP+T
廠商： Maxim Integrated Products
文件頁數(shù)： 26/30頁
文件大?。?/td> 0K
描述： IC AUDIO SUBSYSTEM 20UCSP
產(chǎn)品培訓(xùn)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(yīng)商設(shè)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
_______________________________________________________________________________________
5
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
Slew Rate
SR
0.35
V/s
Capacitive Drive
CL
100
pF
Crosstalk
HPL to HPR, HPR to HPL, f = 20Hz to 20kHz
65
dB
Spread-spectrum modulation mode,
OSC = 00
588
±30
Fixed-frequency mode, OSC = 01
430
550
670
Charge-Pump Frequency
Fixed-frequency mode, OSC = 10
220
350
500
kHz
VOLUME CONTROL
Minimum Setting
_VOL = 1
-75
dB
Maximum Setting
_VOL = 31
0
dB
PGAIN_ = 00
0
PGAIN_ = 01
9
Preamp Gain
Input A or B
PGAIN_ = 10
20
dB
Speaker
100
Mute Attenuation
f = 1kHz, _VOL = 0
Headphone
110
dB
Zero-Crossing Detection Timeout
ZCD = 1
60
ms
DIGITAL INPUTS
Input-Voltage High (SDA, SCL)
VH
1.4
V
Input-Voltage Low (SDA, SCL)
VL
0.4
V
Input-Voltage Low (BIAS)
VBL
0.15
V
Input Hysteresis (SDA, SCL)
VHYS
80
mV
SDA, SCL Input Capacitance
CIN
4pF
Input Leakage Current
IIN
SDA, SCL; TA = +25°C
±1.0
A
BIAS Pullup Current
IBIAS
94
A
DIGITAL OUTPUTS (SDA Open Drain)
Output Low Voltage SDA
VOL
ISINK = 3mA
0.4
V
Output Fall Time SDA
tOF
VH(MIN) to VL(MAX) bus capacitance = 10pF
to 400pF, ISINK = 3mA
250
ns
2-WIRE INTERFACE TIMING
External Pullup Voltage Range:
SDA and SCL
1.7
3.6
V
Serial Clock Frequency
fSCL
DC
400
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
s
START Condition Hold
tHD:STA
0.6
s
START Condition Setup Time
tSU:STA
0.6
s
Clock Low Period
tLOW
1.3
s
Clock High Period
tHIGH
0.6
s
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