SA3286 Datasheet, PDF (5/16 Pages) ON Semiconductor – Pre-configured DSP System

INSPIRIA SA3286
TYPICAL APPLICATIONS
V_B
1
Voltage
Regulator
15
A/D
3k9
14
3k9
1k
M
A/D
2
U
X
3
1k
16
MIC/
TCOIL
Comp
Programming
12
Interface
Clock
Generator
5
4
6
Memory
Select
Acoustic
Indicators
Post
Σ
Biquad
Filters
Cross
Fader
POR
Circuitry
Peak
Clipper
D/A
HBridge
Adaptive
Directional
Microphone
or
FrontWave
*
Feedback
Canceller
**
AGCO
Noise Generator
and Shaper
Σ
Volume
Control
Wide−
band
Gain
Control
A/D
Pre
Biquad
Filters
Environmental
Classification
Post
Biquad
Filters
7
OUT
8
LP
9
Filter
10
200 k
13
Frequency
Band
Analysis
128 bands
Frequency
Band
Synthesis
Data
Logging
WDRC (1,2,4,6 or 8 channels)
Noise Reduction (128 bands)
Graphic EQ (16 bands)
EEPROM
11
* If Input Mode = 1 mic omni, mic + telecoil, mic + DAI
** If Input Mode = 2 mic omni, rear only, directional
Figure 2. Test Circuit
V_B
1
Voltage
Regulator
15
A/D
14
M
2
U
3
X
A/D
MIC/
TCOIL
Comp
16
12
Programming
Interface
Clock
Generator
5
4
6
Memory
Select
Adaptive
*
Directional
Microphone
**
or
FrontWave
Post
Biquad
Filters
Feedback
Canceller
AGCO
Acoustic
Indicators
S
Cross
Fader
POR
Circuitry
Peak
Clipper
D/A
HBridge
Noise Generator
and Shaper
S
Volume
Control
Wide−
band
Gain
Control
A/D
Pre
Biquad
Filters
Environmental
Classification
Post
Biquad
Filters
Knowles or
Microtronic
7 ^{zero−bias}
receiver
8
9
10
13
Frequency
Band
Analysis
128 bands
Frequency
Band
Synthesis
Data
Logging
WDRC (1,2,4,6 or 8 channels)
Noise Reduction (128 bands)
Graphic EQ (16 bands)
EEPROM
11
* If Input Mode = 1 mic omni, mic + telecoil, mic + DAI
** If Input Mode = 2 mic omni, rear only, directional
Figure 3. Typical Application Circuit
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