MAX9877AERP 데이터 시트보기 (PDF) - Maxim Integrated
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MAX9877AERP
Maxim Integrated
MAX9877AERP Datasheet PDF : 31 Pages
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Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, volume controls = 0dB, OSC = 00, BYPASS = 0,
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 = 1µF. TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Preamp = 0dB
47
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz (differential
input mode)
Preamp = +9dB
49
dB
Preamp = +20dB
42
Input DC Voltage
IN_ inputs
1.22 1.3 1.38
V
Bias Voltage
VBIAS
SPEAKER AMPLIFIER (OUTMODE = 1)
1.13
1.2
1.27
V
TA = +25°C (volume at mute)
±0.5 ±4
Output Offset Voltage
VOS
TA = +25°C (Volume at 0dB,
OUTMODE = 1, ∆IN_ = 0)
mV
±1.5
Click-and-Pop Level
Peak voltage, TA =
Into shutdown
-70
+25°C, A-weighted, 32
KCP
samples per second,
dBV
volume at mute (Note 4) Out of shutdown
-70
PVDD = VDD =
2.7V to 5.5V
50
76
f = 217Hz,
Power-Supply Rejection Ratio
PSRR TA = +25°C, PVDD =
100mVP-P ripple
72
dB
(Note 4)
VDD
f = 1kHz,
100mVP-P ripple
68
f = 20kHz,
100mVP-P ripple
55
ZSPK = 8Ω +
68µH, VDD = 3.7V
725
ZSPK = 8Ω +
68µH, VDD = 3.3V
560
Output Power (Note 5)
POUT THD+N ≤ 1%
ZSPK = 8Ω +
68µH, VDD = 3.0V
465
mW
ZSPK = 4Ω +
33µH, VDD = 3.7V
825
ZSPK = 4Ω +
33µH, VDD = 3.0V
770
Total Harmonic Distortion Plus
Noise
THD+N
f = 1kHz, POUT = 350mW, TA = +25°C,
ZSPK = 8Ω + 68µH
0.05
%
Signal-to-Noise Ratio
A-weighted,
OUTMODE = 1, 3,
∆IN_ = 0
(single-ended)
92
4, 6
SNR
∆IN_ = 1 (differential)
94
dB
A-weighted,
∆IN_ = 0
(single-ended)
88
OUTMODE = 7, 9
∆IN_ = 1 (differential)
92
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