参数资料
型号: TAS5518PAGRG4
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: 39/105页
文件大小: 1514K
代理商: TAS5518PAGRG4
Introduction
31
SLES115 — August 2004
TAS5518
Power Supply Volume Control
60
50
40
30
20
10
0
10
20
30
80
70
60
50
40
30
20
10
0
10
20
30
Desired Gain dB
Digital
&
Power
Supply
Gain
dB
Digital Gain
Power Supply Gain
Figure 123. Power Supply and Digital Gains (Log Space)
Power Supply Volume Control
0.0001
0.001
0.01
0.1
1
10
100
0.00001
0.0001
0.001
0.01
0.1
1
10
100
Desired Gain (Linear)
Digital
&
Power
Supply
Gain
Digital Gain
Power Supply Gain
Figure 124. Power Supply and Digital Gains (Linear Space)
1.13.4
AM Interference Avoidance
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 TAS5518 adjusts the radiated emissions to provide an emission clear
zone for the tuned AM frequency. The inputs to the TAS5518 for this operation are the tuned AM frequency,
the IF frequency, and the sample rate. The sample rate is automatically detected.
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