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参数资料
| 型号： | TS4990 |
| 厂商： | 意法半导体 |
| 英文描述： | 1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| 中文描述： | 1W的音频功率放大器，具有活性低待机模式 |
| 文件页数： | 4/6页 |
| 文件大小： | 143K |
| 代理商： | TS4990 |
TS4990
4/6
ELECTRICAL CHARACTERISTICS
V
CC
=
2.6V
, GND =
0V
, T
amb
= 25°C (unless otherwise specified)
REMARKS
1.
All measurements, except PSRR measurements, are made with a supply bypass capacitor Cs = 1μF.
2.
The standby response time is about 1μs.
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
4
6
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = G
ND
, RL = 8
1. Standby mode is actived when Vstdby is tied to Vcc
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc.
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
210
260
mW
THD + N
Total Harmonic Distortion + Noise
Po = 200mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
RL = 8
,
Gv = 2
,
Vripple = 200mVpp, Input Grounded
F = 217Hz
F = 1kHz
55
55
62
66
dB
T
WU
Wake-Up Time
130
TBD
ms
Components
Functional Description
Rin
Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also
form a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin))
Cin
Input coupling capacitor which blocks the DC voltage at the amplifier input terminal
Rfeed
Feed back resistor which sets the closed loop gain in conjunction with Rin
Cs
Supply Bypass capacitor which provides power supply filtering
Cb
Bypass pin capacitor which provides half supply filtering
Cfeed
Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off frequency
1 / (2 x Pi x Rfeed x Cfeed))
Gv
Closed loop gain in BTL configuration = 2 x (Rfeed / Rin)
相关PDF资料 |
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| TS4990JT | 1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| TS4990IJT | 1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| TS4994 | 1W Differential Input/Output Audio Power Amplifier with Selectable Standby |
| TS4994IQT | 1W Differential Input/Output Audio Power Amplifier with Selectable Standby |
| TS4994IST | 1W Differential Input/Output Audio Power Amplifier with Selectable Standby |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS4990_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.2 W audio power amplifier with active low standby mode |
| TS4990EIJT | 功能描述:音频放大器 1.2W audio Pwr 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 |
| TS4990EIKJT | 功能描述:音频放大器 1.2W audio Pwr 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 |
| TS4990EKIJT | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.2 W audio power amplifier with active low standby mode |
| TS4990ID | 功能描述:音频放大器 1.2W audio Pwr 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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