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参数资料
| 型号： | MAX9777ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/27页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.6W AB 28TQFN |
| 标准包装： | 2,500 |
| 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，I²C，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： | 带卷 (TR) |
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MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
2
_
__
_
A
AB
BS
SO
OL
LU
UT
TE
E M
MA
AX
XIIM
MU
UM
M R
RA
AT
TIIN
NG
GS
S
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD to GND ...........................................................................+6V
PVDD to VDD .......................................................................±0.3V
PGND to GND.....................................................................±0.3V
All Other Pins to GND.................................-0.3V to (VDD + 0.3V)
Continuous Input Current (into any pin except power-supply
and output pins) ...............................................................±20mA
OUT__ Short Circuit to GND, VDD ..........................................10s
Short Circuit Between OUT_+ and OUT_- .................Continuous
Continuous Power Dissipation (TA = +70°C)
28-Pin TQFN, Multilayer Board
(derate 34.5mW/°C above +70°C) ..........................2758.6mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = PVDD = 5.0V, GND = PGND = 0V, VSHDN = 5V, CBIAS = 1F, RIN = RF = 15k, RL = ∞. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VDD/PVDD Inferred from PSRR test
4.5
5.5
V
BTL mode, HPS = 0V, MAX9777/MAX9778
13
32
Quiescent Supply Current
(IVDD + IPVDD)
IDD
Single-ended mode, HPS = VDD
718
mA
Shutdown Current
ISHDN
SHDN = GND
10
50
A
Switching Time
tSW
Gain or input switching
10
s
CBIAS = 1F
300
Turn-On Time
tON
CBIAS = 0.1F
30
ms
Thermal Shutdown Threshold
+160
oC
Thermal Shutdown Hysteresis
15
oC
OUTPUT AMPLIFIERS (SPEAKER MODE, HPS = GND)
Output Offset Voltage
VOS
OUT_+ - OUT_-, AV = 1V/V
±4
±32
mV
VDD = 4.5V to 5.5V
75
100
f = 1kHz, VRIPPLE = 200mVP-P
82
Power-Supply Rejection Ratio
(Note 2)
PSRR
f = 20kHz, VRIPPLE = 200mVP-P
70
dB
RL = 8
1.4
RL = 4
2.6
Output Power
POUT
fIN = 1kHz,
THD+N < 1%,
TA = +25°C
RL = 3
3
W
POUT = 1W, RL = 8
0.005
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz, BW =
22Hz to 22kHz
POUT = 2W, RL = 4
0.01
%
Signal-to-Noise Ratio
SNR
RL = 8
, POUT = 1W, BW = 22Hz to 22kHz
95
dB
Slew Rate
SR
1.6
V/s
Maximum Capacitive Load Drive
CL
No sustained oscillations
1
nF
Crosstalk
fIN = 10kHz
73
dB
Into shutdown
-50
Click/Pop Level
KCP
Peak voltage, A-weighted,
32 samples per second
(Notes 2, 6)
Out of shutdown
-65
dBV
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
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