参数资料
型号: MAX9879ERV+T
厂商: Maxim Integrated Products
文件页数: 27/32页
文件大小: 0K
描述: IC AUDIO SUBSYSTEM 30-UCSP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: DirectDrive®
类型: D 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 715mW x 2 @ 8 欧姆; 58mW x 2 @ 16 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,I²C,静音,短路和热保护,关机,音量控制
安装类型: 表面贴装
供应商设备封装: 30-UCSP(5x6)
封装/外壳: 30-WFBGA,CSPBGA
包装: 带卷 (TR)
MAX9879
Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
4
Maxim Integrated
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 = 1F. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Current Limit
1.5
A
Efficiency
η
POUT = 600mW, f = 1kHz
88
%
Speaker Gain
AV
17.4
18
18.4
dB
Output Noise
A-weighted, (ENA = 1 and ENB = 0
or ENA = 0 and ENB = 1),
ΔIN_ = 0
63
VRMS
Crosstalk
OUTL to OUTR, OUTR to OUTL,
f = 20Hz to 20kHz
75
dB
HEADPHONE AMPLIFIERS
TA = +25°C (volume at mute)
±0.22
±0.85
mV
Output Offset Voltage
VOS
TA = +25°C (Volume at 0dB, ENA = 1 and
ENB = 0 or ENA = 0 and ENB = 1,
ΔIN_ = 0)
±1.5
mV
Into shutdown
-75
Click-and-Pop Level
KCP
Peak voltage, TA = 25°C
A-weighted, 32 samples
per second, volume at
mute (Note 5)
Out of shutdown
-75
dBV
PVDD_ = VDD
= 2.7V to 5.5V
70
85
f = 217Hz,
VRIPPLE
= 100mVP-P
84
f = 1kHz,
VRIPPLE
= 100mVP-P
80
Power-Supply Rejection Ratio
(Note 5)
PSRR
TA = +25°C
f = 20kHz,
VRIPPLE
= 100mVP-P
62
dB
RHP = 16
Ω
58
Output Power
POUT
THD+N = 1%
RHP = 32
Ω
54
mW
Headphone Gain
AV
2.6
3
3.4
dB
Channel-to-Channel Gain
Tracking
TA = +25°C, HPL to HPR, volume at 0dB,
ENA=1 and ENB = 0 or ENA = 1 and ENB
= 0,
ΔIN_ = 0
±0.3
±2.5
%
RHP = 32
Ω
(POUT = 10mW, f = 1kHz)
0.018
Total Harmonic Distortion + Noise
THD+N
RHP = 16
Ω
(POUT = 10mW, f = 1kHz)
0.037
0.08
%
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