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參數資料
| 型號： | TDA7490L |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | FLEXIWATT-25 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 242K |
| 代理商： | TDA7490L |
1/11
TDA7490L
December 2005
1FEATURES
■ 20W + 20W OUTPUT POWER:
@RL = 8
/4; THD = 10%
■ HIGH EFFICIENCY
■ WIDE SUPPLY VOLTAGE RANGE (FROM ±10
TO ±25V)
■ SPLIT SUPPLY, SINGLE SUPPLY
OPERATION
■ TURN OFF/ON POP FREE
■ ST-BY AND MUTE FEATURES
■ SHORT CIRCUIT PROTECTION ACROSS
THE LOAD
■ THERMAL OVERLOAD PROTECTION
■ EXTERNALLY SINCHRONIZABLE
■ BRIDGE CONFIGURATION
2DESCRIPTION
The TDA7490L is a dual audio class D amplifier
assembled in Flexiwatt 25 package; it is specially
designed for high efficiency application mainly for
TV and Home Stereo sets.
20W + 20W STEREO CLASS-D AMPLIFIER
40W MONO IN BTL
Figure 2. Test and Application Circuit. (Stereo Configuration)
PWM-stage1
G=2.5
PREAMPLIFIER1
INTEGRATOR1
R21 4.7K
C26 470pF C25 470pF
R20
68K
R17 52.3K
C23
2200
F
C22
100nF
C21
2200
F
R4
130K
L1 30
INPUT1
OSC
C19
560pF
C20
33nF
C18 330pF
C17
24pF
C16 330pF
R15
100
-VCC
R14 22K
R12 22K
C10
220nF
OUT1
PWM-stage2
L2 30
OUT2
C29
220nF
R13
10K
C15
560pF
R11
100
-VCC
EXT_CK
G=2.5
PREAMPLIFIER2
C8 470pF
C9 470pF
R6
68K
R5 4.7K
C14
33nF
R9 52.3K
+VCC
-VCC
+VCC
-VCC
C28
2200
F
C12
2200
F
C11
100nF
C1 330nF
C2
1nF
STBY
MUTE
R2
30K
C27
2.2
F
R1 10K
C3
100nF
C4
100nF
INPUT2
C5 330nF
C6
1nF
-VCC
D98AU978A
79
14
2
4
6
10
12
13
16
1
25
18
19
17
20
24
22
21
23
15
8
11
3
5
INTEGRATOR2
R3
10K
C7 100nF
R1 10K
R 6.8
Rev. 2
Figure 1. Package
Table 1. Order Codes
Part Number
Package
TDA7490L
Flexiwatt 25
Flexiwatt 25
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7490SA | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PZIP19 |
| TDA7491HV | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7491HV13TR | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7491LP13TR | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7491LP | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA7490L_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:20W + 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL |
| TDA7490LSA | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:15W +15W Stereo Class-D Amplifier |
| TDA7490SA | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:10W +10W Stereo Class-D Amplifier |
| TDA7491HV | 功能描述:音頻放大器 20W Dual BTL Class D 18V VCC Audio 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 |
| TDA7491HV13TR | 功能描述:音頻放大器 20W Dual BTL Class D 18V VCC Audio 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 |
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