参数资料
型号: MAX9879ERV+T
厂商: Maxim Integrated Products
文件页数: 23/32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
3
Maxim Integrated
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Preamp = 0
58
Preamp = 5.5dB
55
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz (differential
input mode)
Preamp = 20dB
43
dB
Input DC Voltage
IN__ inputs
1.22
1.3
1.38
V
Bias Voltage
VBIAS
1.13
1.2
1.272
V
SPEAKER AMPLIFIER
TA = +25°C (volume at mute)
±0.5
±4
mV
Output Offset Voltage
VOS
TA = +25°C (volume at 0dB, ENA = 1 and
ENB = 0 or ENB = 1 and ENA = 0,
ΔIN_ = 0)
±4.5
mV
Into shutdown
-70
Click-and-Pop Level
KCP
Peak voltage,
TA = +25°C
A-weighted, 32 samples
per second, volume at
mute (Note 5)
Out of shutdown
-70
dBV
PVDD_ = VDD
= 2.7V to 5.5V
50
76
f = 217Hz,
100mVP-P ripple
72
f = 1kHz,
100mVP-P ripple
68
Power-Supply Rejection Ratio
(Note 5)
PSRR
TA = +25°C
f = 20kHz,
100mVP-P ripple
55
dB
VDD = 3.7V
715
VDD = 3.3V
565
Output Power
POUT
THD+N
≤ 1%, RSPK =
8
Ω
VDD = 3.0V
470
mW
Total Harmonic Distortion + Noise
THD+N
f = 1kHz, POUT = 350mW, TA = +25°C,
RSPK = 8
Ω
0.04
0.2
%
ΔIN_ = 0
(single-ended)
92
A-weighted, ENA = 1
and ENB = 0 or ENB = 1
and ENA = 0
ΔIN_ = 1
(differential)
94
ΔIN_ = 0
(single-ended)
88
Signal-to-Noise Ratio
SNR
A-weighted ENA =
ENB = 1
ΔIN_ = 1
(differential)
92
dB
Output Frequency
700
±40
kHz
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)
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