SA3229 Datasheet, PDF (6/16 Pages) ON Semiconductor – Preconfigured DSP System

RHYTHM SA3229
TYPICAL APPLICATIONS
V_B
1
REGULATOR
3k9
18
A/D
17
A/D
16
1k
15
2
SA3229
9
10
MIC / TELECOIL
COMPENSATION
12
11
PROGRAMMING
INTERFACE
FEEDBACK
CANCELLER
+
PRE BIQUAD FILTERS POST BIQUAD FILTERS
1−4
3&4
1, 2 or 4 CHANNEL
WDRC
AGC−O
POST BIQUAD FILTERS
1&2
VC GAIN
WIDEBAND GAIN
TONE
GENERATOR
CROSS
FADER
EVOKE
TRIMMER/VC INTERFACE
13
14 22 21 20 19
NOISE GENERATOR BIQUAD 1−4
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
Figure 2. Test Circuit
8
7
PEAK
CLIPPING
5
D/A
HBRIDGE
6
OUT
LP FILTER
4
3
Reed Switch
For Autotcoil
MS
1
REGULATOR
18
A/D
17
A/D
16
15
2
SA3229
9
10
MIC / TELECOIL
COMPENSATION
12
11
PROGRAMMING
INTERFACE
FEEDBACK
CANCELLER
TONE
GENERATOR
+
PRE BIQUAD FILTERS POST BIQUAD FILTERS
1−4
3&4
1, 2 or 4 CHANNEL
WDRC
AGC−O
POST BIQUAD FILTERS
1&2
VC GAIN
WIDEBAND GAIN
CROSS
FADER
EVOKE
TRIMMER/VC INTERFACE
NOISE GENERATOR
BIQUAD 1−4
13
14
22
21
20
19
VC TR1 TR2 TR3 TR4
V_B
22
47μ
8
7
PEAK
CLIPPING
D/A
5
HBRIDGE
6
4
3
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
Figure 3. Typical Trimmer Application Circuit
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