参数资料
型号: TLV320AIC3111IRHBT
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: AUDIO AMPLIFIER, PQCC32
封装: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数: 78/156页
文件大小: 1701K
代理商: TLV320AIC3111IRHBT
W0002-01
Decay Time
Target
Level
Input
Signal
Output
Signal
AGC
Gain
Attack
Time
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
www.ti.com
Table 5-15. AGC Settings(1)
CONTROL REGISTER
BIT
FUNCTION
36
D5 (read-only)
AGC saturation flag
39
D3 (read-only)
ADC saturation flag
45
D6 (read-only)
Signal to level setting of noise threshold
86
D7
AGC enable
86
D6–D4
Target level
87
D7–D6
Hysteresis
87
D5–D1
Noise threshold
88
D6–D0
Maximum PGA applicable
89
D7–D0
Time constants (attack time)
90
D7–D0
Time constants (decay time)
91
D4–D0
Debounce time (noise)
92
D3–D0
Debounce time (signal)
93
D7–D0 (read-only)
Gain applied by AGC
(1)
All registers shown in this table are located on page 0.
Figure 5-2. AGC Characteristics
The AGC settings should be set based on user and system conditions, such as microphone selection and
sensitivity, acoustics (plastics) around the microphone which affect the microphone pattern, expected
distance and direction between microphone and sound source, acoustic background noise, etc.
28
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3111
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