参数资料
型号: TDA7263M
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 12 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM11
封装: MULTIWATT-11
文件页数: 5/7页
文件大小: 1087K
代理商: TDA7263M
Obsolete
Product(s)
- Obsolete
Product(s)
BUILT-IN PROTECTION SYSTEMS
THERMAL SHUT-DOWN
The presence of a thermal limiting circuit offers
the following advantages:
1-an overload on the output (even if it is perma-
nent), or an excessive ambient temperature
can be easily withstood.
2-the heatsink can have a smaller factor of
safety compared with that of a conventional
circuit. There is no device damage in the case
of excessive junction temperature; all that
happens is that PO (and therefore Ptot) and IO
are reduced.
SHORT CIRCUIT (AC CONDITIONS)
The TDA7263M can withstand accidental short
circuits across the speaker made by a wrong con-
nection during normal play operation.
APPLICATION SUGGESTION
The recommended values of the components are those shown on application circuit of figure 1. Different
values can be used; the following table can help the designer.
Component
Recomm.
Value
Purpose
Larger Than
Smaller Than
R1 and R3
1.5K
Close loop gain setting (*)
Increase of gain
Decrease of gain
R2 and R4
47
Close loop gain setting (*)
Decrease of gain
Increase of gain
R5 and R6
4.7
Frequency stability
Danger of oscillations
C1 and C2
100nF
Input DC decoupling
Higher SVR
Higher low frequency cutoff
C3
47
F
- Ripple Rejection
- Mute time constant
Increase of the Switch-on
time
- Degradation of SVR
- Worse turn-off pop by muting
C4
100nF
Supply Voltage Bypass
Danger of oscillations
C5
1000
F
Supply Voltage Bypass
C6 and C7
47
F
Feedback input DC
decoupling
Increase of the Switch-on
time
Decrease of the Switch-on
time
C8 and C9
0.1
F
Frequency stability
Danger of oscillations
C10 and C11
1000
F
Output DC decoupling
Higher low-frequency cut-off
(*) Closed loop gain must be higher than 26dB
Figure 8: P. C. Board and Component Layout of the Application Circuit (1:1 scale).
TDA7263M
5/7
相关PDF资料
PDF描述
TDA7263SA 12 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15
TDA7266B 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15
TDA7266D13TR 7 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15
TDA7266L 7 W, 1 CHANNEL, AUDIO AMPLIFIER, PSFM10
TDA7266M 7 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15
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