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参数资料
| 型号： | MAX9788ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.4W G 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | G 类 |
| 输出类型： | 1-通道（单声道） |
| 在某负载时最大输出功率 x 通道数量： | 2.4W x 1 @ 8 欧姆 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，关闭 |
| 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) |
MAX9788
14VP-P, Class G Ceramic Speaker Driver
_______________________________________________________________________________________
3
Note 2:
All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 3:
Testing performed with resistive and capacitive loads to simulate an actual ceramic/piezoelectric speaker load,
ZL = 1F + 10Ω.
Note 4:
Input DC bias voltage determines the maximum voltage swing of the input signal. Inputing a signal with a peak voltage
of greater than the input DC bias voltage results in clipping.
Note 5:
1.8V logic compatible.
Note 6:
Amplifier/inputs AC-coupled to GND.
Note 7:
Testing performed at room temperature with 10
Ω resistive load in series with 1F capacitive load connected across the BTL
output for speaker amplifier. Mode transitions are controlled by SHDN. VCP is the peak output transient expressed in dBV.
Note 8:
Voltage gain is defined as: [VOUT+ - VOUT-] / [VIN+ - VIN-].
Note 9:
PVSS is forced to -3.6V to simulate boosted rail.
Note 10:
Dynamic range is calculated by measuring the RMS voltage difference between a -60dBFS output signal and the noise
floor, then adding 60dB. Full scale is defined as the output signal needed to achieve 1% THD+N.
RIN_ and RFB_ have 0.5% tolerance. The Class G output stage has 12dB of gain. Any gain or attenuation at the input
stage will add to or subtract from the gain of the Class G output.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC = 5V
6.5
VCC = 4.2V
5.4
VCC = 3.6V
4.7
Output Voltage
VOUT
f = 10kHz, 1% THD+N,
ZL = 1F + 10
Ω, no load
VCC = 3.0V
3.3
VRMS
VCC = 5V
2.4
VCC = 4.2V
1.67
VCC = 3.6V
1.25
Continuous Output Power
POUT
1% THD+N, f = 1kHz,
RL = 8
VCC = 3.0V
0.8
W
VCC = 2.7V to 5.5V
63
77
f = 217Hz, 200mVP-P ripple
77
f = 1kHz, 200mVP-P ripple
77
Power-Supply Rejection Ratio
(Note 4)
PSRR
f = 20kHz, 200mVP-P ripple
58
dB
ZL = 1F + 10
Ω, VOUT = 1kHz / 1.9VRMS
0.002
Total Harmonic Distortion Plus
Noise
THD+N
ZL = 1F + 10
Ω, VOUT = 1kHz / 4.0VRMS
0.08
%
Signal-to-Noise Ratio
SNR
VOUT = 5.1VRMS, A-weighted
108
dB
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz (Note 9)
68
dB
VCC = 5V
106
Dynamic Range
DR
A-weighted (Note 10)
VCC = 3.6V
105
dB
ELECTRICAL CHARACTERISTICS (continued)
(VCC = VCPVDD = VSHDN = 3.6V, VGND = VCPGND = 0V, RIN+ = RIN- = 10k
Ω, RFB+ = RFB- = 10kΩ, RFS = 100kΩ, C1 = 4.7F, C2 =
10F; load connected between OUT+ and OUT-, ZLOAD = 10
Ω + 1F, unless otherwise stated; TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Notes 2, 3)
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| MAX9789AETJ+T | 功能描述:音频放大器 Windows Vista Class AB Speaker Amp 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 |
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