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參數(shù)資料
| 型號： | TS4990 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| 中文描述： | 1W的音頻功率放大器，具有活性低待機(jī)模式 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 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)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS4990_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W audio power amplifier with active low standby mode |
| TS4990EIJT | 功能描述:音頻放大器 1.2W audio Pwr amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4990EIKJT | 功能描述:音頻放大器 1.2W audio Pwr amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4990EKIJT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W audio power amplifier with active low standby mode |
| TS4990ID | 功能描述:音頻放大器 1.2W audio Pwr amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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