MAX98400A 데이터 시트보기 (PDF) - Maxim Integrated
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MAX98400A Datasheet PDF : 26 Pages
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Stereo, High-Power, Class D Amplifiers
Electrical Characteristics (continued)
(VPVDD = 18V, CIN = 1FF, VSHDN = 5V, LIM_TH = VS, TEMPLOCK = unconnected; G1 = GND, G2 = open (gain = 20.1dB), CREL
= 1FF, C1 = C2 = 1FF, RL = J, AC measurement bandwidth 20Hz to 20kHz, differential input signal, TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25NC.) (Notes 2, 3)
PARAMETER
VGA Distortion
SYMBOL
CONDITIONS
Compression = 0 to -12dB
MIN TYP MAX UNITS
3.5
%
LIM_TH Input-Voltage Low
(PVDD Tracking)
0.15
V
LIM_TH Input-Voltage High
(Limiter Off)
VS
-1
V
Channel-to-Channel Attenuation
Tracking
Q1
dB
THERMAL FOLDBACK
Internal Templock Resistor
Trigger Temperature
Hard Thermal Protection
LOGIC INPUT (G1, G2)
Sink Current
Source Current
Input High Threshold
TA = +25NC, VG1, VG2 = 0V
TA = +25NC, VG1, VG2 = VS
120 205 310
kI
+130
NC
+165
NC
+2.5 +5
+8
FA
-8
-5
-2.5
FA
0.8 x
VS
V
Input Low Threshold
0.3 x
VS
V
Input Three-State Window
LOGIC INPUT (SHDN, MONO (MAX98400A Only))
Input Leakage Current
IIN
TA = +25NC
Input High Threshold
VINH
Input Low Threshold
VINL
Input-Voltage Hysteresis
0.45 x 0.5 x 0.55 x
VS
VS
VS
V
Q10
FA
2
V
0.4
V
100
mV
Note 2: 100% production tested at TA = +25NC. Specifications over temperature limits are guaranteed by design.
Note 3: The MAX98400A stereo mode is specified with an 8I resistive load in series with a 68FH inductive load connected across
BTL outputs. The MAX98400A mono mode is specified with a 4I resistive load in series with 33FH inductive load. The
MAX98400B is specified with an 8I resistive load in series with a 68FH inductive load connected across BTL outputs.
Note 4: Amplifier inputs AC-coupled to GND.
Note 5: Mode transitions controlled by SHDN.
Note 6: Relative to equivalent full-scale undistorted output. Full scale (FS) = VPVDD x 0.95.
Note 7: Relative to equivalent full-scale undistorted output. Full scale (FS) = VPVDD.
6
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