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參數(shù)資料
| 型號： | TDA7494 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 10W AMPLIFIER WITH DC VOLUME CONTROL |
| 中文描述： | 10W的放大器，直流音量控制 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 238K |
| 代理商： | TDA7494 |
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of fig-
ure 1. Different values can be used; the following table can help the designer.
COMPONENT
SUGGESTION
VALUE
3.3K
3.3K
PURPOSE
LARGER THAN
SUGGESTION
Vpin #2 shifted downward Vpin #2 shifted upward
Vpin #2 shifted upward
SMALLER THAN
SUGGESTION
R1
R2
Input switch circuit
Input switch circuit
Input switch time
constant
Volume control time
constant
Mute time constant
Volume control circuit
Supply voltage bypass
Supply voltage bypass
Vpin #2 shifted downward
R3
100K
Larger Input Switch Time
Smaller input switch time
R4
100K
Larger Volume
Regulation Time
Larger mute on/off time
Smaller volume
regulation time
Smaller mute on/off time
R5
P1
C1
C2
10K
50K
1000
μ
F
100nF
Danger of oscillation
Danger of oscillation
Higher low frequency
cutoff
Higher low frequency
cutoff
Higher low frequency
cutoff
C3
470nF
Input DC decoupling
Lower low frequency
cutoff
Lower low frequency
cutoff
Lower low frequency
cutoff
C4
470nF
Input DC decoupling
C5
470nF
Input DC decoupling
C6
300nF
Input- switch time
constant
Volume control time
constant
Ripple Rejection
Mute time constant
Larger-Input- switch time
Smaller input- switch time
C7
300nF
Larger volume regulation
time
Better SVR
Larger mute on/off time
Lower low frequency
cutoff
Smaller volume regulation
time
Worse SVR
Smaller mute on/off time
Higher low frequency
cutoff
C8
C9
470
μ
F
1
μ
F
C10
470
μ
F
Output DC decoupling
TYPICAL CHARACTERISTICS:
Refer to the Application Circuit of Fig.1 V
S
= 21V; R
L
= 8
; f = 1KHz;
R
S
= 8
; Tamb = 25°C; R
S
= 50
; unless otherwise specified
5
10
15
20
25
30
Vs(V)
D96AU517
0
2
4
6
8
10
12
14
P
OUT
(W)
d=10%
d=1%
Figure 3:
Output Power vs Supply Voltage
0
2
4
6
8 P
OUT
(W)
0.01
0.1
1
d
(%)
V
S
=28V
R
L
=8
f=15KHz
f=1KHz
D96AU518
Figure 4:
Distortion vs Output Power
TDA7494
5/12
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| TDA7495S | 11W+11W AMPLIFIER |
| TDA7495 | 11W+11W AMPLIFIER WITH DC VOLUME CONTROL |
| TDA7496L | 2W+2W AMPLIFIER WITH DC VOLUME CONTROL |
| TDA7496SA | 5W 5W AMPLIFIER WITH DC VOLUME CONTROL |
| TDA7496SSA | 5W+5W AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7494S | 功能描述:音頻放大器 Video switch chip 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7494SA | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5W+5W AMPLIFIER WITH DC VOLUME CONTROL |
| TDA7495 | 功能描述:音頻放大器 11W DC Amp w/Vol Cnt 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7495S | 功能描述:音頻放大器 11W/11W AMPLIFIER 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7495S_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:11W +11W AMPLIFIER |
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