参数资料
型号: TAS5508PAGR
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封装: GREEN, PLASTIC, TQFP-64
文件页数: 42/105页
文件大小: 1286K
代理商: TAS5508PAGR
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10
0
10
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30
80
70
60
50
40
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20
10
0
10
20
30
Desired Gain dB
Digital
and
Power-Supply
Gain
dB
Digital Gain
Power-Supply Gain
G002
G003
Desired Gain Linear
Digital
and
Power-Supply
Gain
dB
Digital Gain
Power-Supply Gain
0.00001
0.1
100
0.0001
0.01
10
100
1
0.001
0.1
1
10
0.0001
0.001
0.01
2.12.4 AM Interference Avoidance
TAS5508
8-Channel Digital Audio PWM Processor
www.ti.com
SLES091D – FEBRUARY 2004 – REVISED JULY 2009
Figure 2-20. Power-Supply and Digital Gains (Log Space)
Figure 2-21. Power-Supply and Digital Gains (Linear Space)
Digital amplifiers can degrade AM reception as a result of their RF emissions. Texas Instruments' patented
AM interference-avoidance circuit provides a flexible system solution for a wide variety of digital audio
architectures. During AM reception, the TAS5508 adjusts the radiated emissions to provide an
emission-clear zone for the tuned AM frequency. The inputs to the TAS5508 for this operation are the
tuned AM frequency, the IF frequency, and the sample rate. The sample rate is automatically detected.
Description
41
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