参数资料
型号: MAX9778ETI+
厂商: Maxim Integrated Products
文件页数: 3/27页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.6W AB 28TQFN
标准包装: 60
类型: AB 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: 2.6W x 2 @ 4 欧姆; 200mW x 2 @ 16 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,输入多路复用器,静音,关机,热保护,
安装类型: 表面贴装
供应商设备封装: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 管件
MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
_
__
_
11
Pin Description
PIN
MAX9777
MAX9778
NAME
FUNCTION
1
SDA
Serial Data I/O
2—
INT
Interrupt Output
3, 4
VDD
Power-Supply Input
5
INL1
Left-Channel Input 1
6
INL2
Left-Channel Input 2
7
GAINLA
Left-Channel Gain Set A
8
GAINLB
Left-Channel Gain Set B
9, 13, 23, 27
PGND
Power Ground. Connect to GND.
10
OUTL+
Left-Channel Bridged Amplifier Positive Output. OUTL+ also serves as the
left-channel headphone amplifier output.
11, 25
PVDD
Output Amplifier Power Supply
12
OUTL-
Left-Channel Bridged Amplifier Negative Output
14
SHDN
Active-Low Shutdown Input. Connect SHDN to VDD for normal operation.
15
ADD
Address Select. A logic-high sets the address LSB to 1, a logic-low sets the
address LSB to zero.
16
HPS
Headphone Sense Input. A logic-high configures the device as a single-
ended headphone amp. A logic-low configures the device as a BTL
speaker amp.
17
BIAS
DC Bias Bypass Terminal. See the BIAS Capacitor section for capacitor
selection. Connect CBIAS from BIAS to GND.
18
GND
Ground. Connect to PGND.
19
INR1
Right-Channel Input 1
20
INR2
Right-Channel Input 2
21
GAINRA
Right-Channel Gain Set A
22
GAINRB
Right-Channel Gain Set B
24
OUTR+
Right-Channel Bridged Amplifier Positive Output. OUTR+ also serves as the
right-channel headphone amplifier output.
26
OUTR-
Right-Channel Bridged Amplifier Negative Output
28
SCL
Serial Clock Line
1
MUTE
Active-High Mute Input
2
HPS_EN
Headphone Enable. A logic-high enables HPS. A logic-low disables HPS
and the device is always configured as a BTL speaker amplifier.
15
GAINA/B
Gain Select. A logic-low selects the gain set by GAIN_A. A logic-high
selects the gain set by GAIN_B.
—28
IN1/2
Input Select. A logic-low selects amplifier input 1. A logic-high selects
amplifier input 2.
EP
Exposed Paddle. Connect to GND.
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MAX9778ETI+ 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
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
MAX9779ETI+ 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
MAX9779ETI+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
MAX977EEE 功能描述:校验器 IC 3V/5V Dual-Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压(最大值):6 mV 电源电流(最大值):1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel