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MAX9879_V01

更新时间: 2022-06-24 15:44:49
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
32页 575K
描述
Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier

MAX9879_V01 数据手册

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MAX9879  
Stereo Class D Audio Subsystem  
with DirectDrive Headphone Amplifier  
ELECTRICAL CHARACTERISTICS (continued)  
(V  
= V  
= V  
= 3.7V, V  
= 1.8V, V  
= V  
= V  
= 0. Single-ended inputs, preamp = 0, volume controls =  
DD  
PVDDL  
PVDDR  
CCIO  
GND  
PGNDL  
PGNDR  
0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL or HPR to  
GND. R = , R = . C1 = C2 = C = 1µF. T = T to T , unless otherwise noted. Typical values are at T = +25°C.)  
SPK  
HP  
BIAS  
A
MIN  
MAX  
A
(Notes 3, 4)  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Input Voltage High (SHDN)  
Input Voltage Low (SHDN)  
Input Hysteresis (SHDN)  
V
1.4  
V
V
IH  
V
0.4  
IL  
V
100  
10  
mV  
HYS  
SDA, SCL, SHDN Input  
Capacitance  
C
pF  
IN  
Input Leakage Current  
I
I
SDA, SCL, SHDN, T = +25°C  
1.0  
1.0  
µA  
µA  
IN  
IN  
A
Input Leakage Current  
V
= 0, T = +25°C  
CCIO A  
DIGITAL OUTPUTS (SDA open drain)  
Output Low-Voltage SDA  
V
I
I
= 3mA  
= 3mA  
0.4  
V
V
OL  
SINK  
V
-
CCIO  
0.4  
Output High-Voltage SDA  
V
OH  
SINK  
V
to V  
bus capacitance  
L(MAX)  
H(MIN)  
Output Fall Time SDA  
t
250  
ns  
OF  
= 10pF to 400pF, I  
= 3mA  
SINK  
2-WIRE INTERFACE TIMING  
External Pullup Voltage Range  
(SDA and SCL)  
1.7  
DC  
1.3  
3.6  
V
Serial-Clock Frequency  
f
400  
kHz  
µs  
SCL  
Bus Free Time Between STOP  
and START Conditions  
t
BUF  
START Condition Hold  
START Condition Setup Time  
Clock Low Period  
t
0.6  
0.6  
1.3  
0.6  
100  
0
µs  
µs  
µs  
µs  
ns  
ns  
HD:STA  
t
SU:STA  
t
LOW  
Clock High Period  
Data Setup Time  
t
HIGH  
t
SU:DAT  
HD:DAT  
Data Hold Time  
t
900  
300  
20 +  
0.1 x C  
SCL/SDA Receiving Rise Time  
SCL/SDA Receiving Fall Time  
t
(Note 6)  
ns  
ns  
R
B
20 +  
0.1 x C  
t
300  
F
F
B
B
20 +  
0.1 x C  
V
V
=1.8V (Note 6)  
250  
250  
CCIO  
CCIO  
SDA Transmitting Fall Time  
t
ns  
20 +  
0.05 x C  
= 3.6V (Note 6)  
B
6
Maxim Integrated  

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