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參數資料
| 型號： | TS4994IST |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | LEAD FREE, MINI, SO-8 |
| 文件頁數： | 1/35頁 |
| 文件大小： | 483K |
| 代理商： | TS4994IST |
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December 2006
Rev 6
1/35
35
TS4994
1W differential input/output audio power amplifier
with selectable standby
Features
■ Differential inputs
■ Near-zero pop & click
■ 100dB PSRR @ 217Hz with grounded inputs
■ Operating range from VCC = 2.5V to 5.5V
■ 1W rail-to-rail output power @ VCC =5V,
THD = 1%, F = 1kHz, with 8
Ωload
■ 90dB CMRR @ 217Hz
■ Ultra-low consumption in standby mode (10nA)
■ Selectable standby mode (active low or active
high)
■ Ultra fast startup time: 15ms typ.
■ Available in DFN10 3x3 (0.5mm pitch) &
MiniSO-8
■ All lead-free packages
Description
The TS4994 is an audio power amplifier capable
of delivering 1W of continuous RMS output power
into an 8
Ωload @ 5V. Due to its differential inputs,
it exhibits outstanding noise immunity.
An external standby mode control reduces the
supply current to less than 10nA. An STBY
MODE pin allows the standby to be active HIGH
or LOW (except in the MiniSO-8 version). An
internal thermal shutdown protection is also
provided, making the device capable of sustaining
short-circuits.
The device is equipped with common mode
feedback circuitry allowing outputs to be always
biased at VCC/2 regardless of the input common
mode voltage.
The TS4994 is designed for high quality audio
applications such as mobile phones and requires
few external components.
Applications
■ Mobile phones (cellular / cordless)
■ Laptop / notebook computers
■ PDAs
■ Portable audio devices
Order codes
TS4994IQT - DFN10
Pin connections (top view)
1
2
3
4
5
10
9
8
7
6
V
IN -
V
O+
STBY
V
DD
V
IN +
STBY MODE
BYPASS
V
O-
GND
N/C
1
2
3
4
5
1
2
3
4
5
10
9
8
7
6
10
9
8
7
6
V
IN -
V
O+
STBY
V
DD
V
IN +
STBY MODE
BYPASS
V
O-
GND
N/C
4
3
2
1
V
IN+
V
IN-
V
O+
GND
Vcc
V
O-
BYPASS
5
6
7
8
STBY
4
3
2
1
V
IN+
V
IN-
V
O+
GND
Vcc
V
O-
BYPASS
5
6
7
8
STBY
TS4994IST - MiniSO-8
Part number
Temperature range
Package
Packing
Marking
TS4994IQT
-40°C to +85°C
DFN10
Tape & reel
K994
TS4994IST
MiniSO-8
K994
相關PDF資料 |
PDF描述 |
|---|---|
| TS4995EIJT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4998IQT | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| TS555CPT | PULSE; RECTANGULAR, 2 MHz, TIMER, PDSO8 |
| TS555IN | PULSE; RECTANGULAR, 2 MHz, TIMER, PDIP8 |
| TS555IDT | PULSE; RECTANGULAR, 2 MHz, TIMER, PDSO8 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TS4995 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W fully differential audio power amplifier with selectable standby and 6 dB fixed gain |
| TS4995EIJT | 功能描述:音頻放大器 1.2W input/output Diff Audio Pwr Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4997 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 1W differential input stereo audio amplifier with programmable 3D effects |
| TS4997IQT | 功能描述:音頻放大器 Stereo w/3D effects RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4998 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 1W differential input stereo audio amplifier |
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