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參數資料
| 型號： | TPA0252PWP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數： | 23/34頁 |
| 文件大小： | 851K |
| 代理商： | TPA0252PWP |
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ABSOLUTE MAXIMUM RATINGS
TPA0252
SLOS288B – JUNE 2000 – REVISED SEPTEMBER 2004
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
BYPASS
7
Tap to voltage divider for internal mid-supply bias generator
If a 47-nF capacitor is attached, the TPA0252 generates an internal clock. An external clock can override
CLK
6
I
the internal clock input to this terminal.
A momentary pulse on this terminal decreases the volume level by 2 dB. Holding the terminal low for a
DOWN
5
I
period of time steps the amplifier through the volume levels at a rate determined by the capacitor on the
CLK terminal.
GND
12, 24
I
Ground connection for circuitry. Connected to thermal pad
Input MUX control. When terminal is high, the LHPIN and RHPIN inputs are selected. When terminal is
HP/LINE
14
I
low, LLINEIN and RLINEIN inputs are selected.
LHPIN
19
I
Left-channel headphone input, selected when HP/LINE is held high
LIN
21
I
Common left input for fully differential input. AC ground for single-ended inputs
LLINEIN
20
I
Left-channel line negative input, selected when HP/LINE is held low
LOUT+
23
O
Left-channel positive output in BTL mode and positive in SE mode
LOUT–
1
O
Left-channel negative output in BTL mode and high impedance in SE mode
The input for PC beep mode. PC-BEEP is enabled when a > 1.5-V (peak-to-peak) square wave is input to
PC-BEEP
10
I
PC-BEEP.
PVDD
3, 8
I
Power supply for output stage
RHPIN
17
I
Right channel headphone input, selected when HP/LINE is held high
RIN
15
I
Common right input for fully differential input. AC ground for single-ended inputs
RLINEIN
16
I
Right-channel line input, selected when HP/LINE is held low
ROUT+
13
O
Right-channel positive output in BTL mode and positive in SE mode
ROUT–
11
O
Right-channel negative output in BTL mode and high impedance in SE mode
Input and output MUX control. When this terminal is held high SE outputs are selected. When this
SE/BTL
22
I
terminal is held low BTL outputs are selected.
When held low, this terminal places the entire device, except PC-BEEP detect circuitry, in shutdown
SHUTDOWN
2
I
mode.
A momentary pulse on this terminal increases the volume level by 2 dB. Holding the terminal low for a
UP
4
I
period of time steps the amplifier through the volume levels at a rate determined by the capacitor on the
CLK terminal.
Volume control memory supply. Connect to system auxiliary that stays active when device is powered
VAUX
9
I
down.
VDD
18
I
Analog VDD input supply. This terminal needs to be isolated from PVDD to achieve highest performance.
Thermal Pad
Connect to ground. Must be soldered down in all applications to properly secure device on PC board.
over operating free-air temperature range (unless otherwise noted)(1)
Supply voltage, VDD
6 V
Input voltage, VI
-0.3 V to VDD +0.3 V
Continuous total power dissipation
internally limited (see Dissipation Rating Table)
Operating free-air temperature range, TA
-40
°C to 85°C
Operating junction temperature range, TJ
-40
°C to 150°C
Storage temperature range, Tstg
-65
°C to 85°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
(1)
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 under "recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
3
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相關代理商/技術參數 |
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| TPA0252PWPG4 | 功能描述:音頻放大器 St Class-AB Aud Amp with Dig Vol Control 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 |
| TPA0252PWPR | 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive 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 |
| TPA0252PWPRG4 | 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive 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 |
| TPA0253 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
| TPA0253_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
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