参数资料
型号: MAX9776ETJ+T
厂商: Maxim Integrated Products
文件页数: 34/38页
文件大小: 0K
描述: IC AMP AUDIO PWR 1.5W D 32TQFN
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: 1-通道(单声道),带立体声耳机
在某负载时最大输出功率 x 通道数量: 1.5W x 1 @ 4 欧姆; 60mW 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: 32-TQFN-EP(5x5)
封装/外壳: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
配用: MAX9776EVKIT+-ND - EVALUATION KIT FOR MAX9776
MAX9775/MAX9776
2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = CPVDD = 3.3V, VGND = VPGND = VCPGND = 0V, SHDN = VDD, I2C settings (INA gain = +20dB, INB gain = INC gain =
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (RLSP) are terminated between
OUT_+ and OUT_-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1F. TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RL = 16
Ω
60
Output Power
POUT
TA = +25°C,
THD+N = 1%
RL = 32
Ω
50
mW
Current Limit
170
mA
Gain
AV
+3
dB
Channel-to-Channel Gain
Tracking
TA = +25°C
±1
%
RL = 16
Ω (VOUT = 800mVRMS, f = 1kHz)
0.03
Total Harmonic Distortion Plus
Noise
THD+N
RL = 32
Ω (VOUT = 800mVRMS, f = 1kHz)
0.024
%
BW = 20Hz to
20kHz
92
Signal-to-Noise Ratio
SNR
RL = 16
Ω,
VOUT = 800mVRMS
A-weighted
93
dB
Slew Rate
SR
0.3
V/s
Capacitive Drive
CL
300
pF
Crosstalk
L to R, R to L, f = 10kHz, RL = 16
Ω,
VOUT = 160mVRMS
75
dB
VOLUME CONTROL
HP gain (max)
3
SP gain (max)
12
HP gain (min)
-72
IN+6dB = 0
(minimum gain
setting)
SP gain (min)
-63
HP gain (max)
9
SP gain (max)
18
HP gain (min)
-61
Volume Control
IN+6dB = 1
(maximum gain
setting)
SP gain (min)
-57
dB
Mono+6dB = 0
0
Mono Gain
All outputs
Mono+6dB = 1
6
dB
INA+20dB = 0 (minimum gain setting)
Set by IN+6dB
Input Pair A Control
INA+20dB = 1 (maximum gain setting)
20
dB
Mute Attenuation
(Minimum Volume)
VIN = 1VRMS
80
dB
DIGITAL INPUTS (
SHDN, SDA, SCL)
Input-Voltage High
VIH
1.4
V
Input-Voltage Low
VIL
0.4
V
Input Hysteresis (SDA, SCL)
VHYS
200
mV
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MAX9778ETI+T 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel