MAX9879(2009) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX9879
(Rev.:2009)
(Rev.:2009)
Maxim Integrated
MAX9879 Datasheet PDF : 31 Pages
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Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VPVDDL = VPVDDR = 3.7V, VCCIO = 1.8V, VGND = VPGNDL = VPGNDR = 0. Single-ended inputs, preamp = 0, volume controls =
0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL or HPR to
GND. RSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1µF. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Notes 3, 4)
PARAMETER
Input Voltage High (SHDN)
Input Voltage Low (SHDN)
Input Hysteresis (SHDN)
SDA, SCL, SHDN Input
Capacitance
SYMBOL
VIH
VIL
VHYS
CIN
Input Leakage Current
IIN
Input Leakage Current
IIN
DIGITAL OUTPUTS (SDA open drain)
Output Low-Voltage SDA
VOL
CONDITIONS
SDA, SCL, SHDN, TA = +25°C
VCCIO = 0, TA = +25°C
ISINK = 3mA
Output High-Voltage SDA
VOH
ISINK = 3mA
MIN TYP MAX UNITS
1.4
V
0.4
V
100
mV
10
pF
±1.0
µA
±1.0
µA
VCCIO -
0.4
0.4
V
V
Output Fall Time SDA
2-WIRE INTERFACE TIMING
External Pullup Voltage Range
(SDA and SCL)
Serial-Clock Frequency
Bus Free Time Between STOP
and START Conditions
START Condition Hold
START Condition Setup Time
Clock Low Period
Clock High Period
Data Setup Time
Data Hold Time
SCL/SDA Receiving Rise Time
SCL/SDA Receiving Fall Time
SDA Transmitting Fall Time
tOF
VH(MIN) to VL(MAX) bus capacitance
= 10pF to 400pF, ISINK = 3mA
fSCL
tBUF
tHD:STA
tSU:STA
tLOW
tHIGH
tSU:DAT
tHD:DAT
tR
(Note 6)
tF
VCCIO =1.8V (Note 6)
tF
VCCIO = 3.6V (Note 6)
1.7
DC
1.3
0.6
0.6
1.3
0.6
100
0
20 +
0.1 x CB
20 +
0.1 x CB
20 +
0.1 x CB
20 +
0.05 x CB
250
ns
3.6
V
400
kHz
µs
µs
µs
µs
µs
ns
900
ns
300
ns
300
ns
250
ns
250
6 _______________________________________________________________________________________
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