RHYTHM R3920
www.onsemi.com
8
TYPICAL APPLICATIONS
Figure 3. Test Circuit
* If Input Mode = 1 mic omni, mic + telecoil, mic + DAI
** If Input Mode = 2 mic omni, rear only, directional
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
LP FILTER
OUT
200k
3
PROGRAMMING
INTERFACE
EEPROM
M
U
X
D/A
HBRIDGE
PEAK
CLIPPER
CONTROL
A/D
A/D
A/D
CLOCK
GENERATOR
POR
CIRCUITRY
CROSS
FADER
MIC/TCOIL
COMP
AGCO
FEEDBACK
CANCELLER
FREQUENCY
BAND
ANALYSIS
FREQUENCY
BA N D
SYNTHESIS
WIDEBAND
128 bands
VOLTAGE
REGULATOR
VOLUME
CONTROL
PRE
BI Q UA D
FILTERS
ADAPTIVE
DIRECTIONAL
MICROPHONE
or
FRONTWAVE
*
**
DATA
LOGGING
ACOUSTIC
INDICATORS
Σ
AND SHAPER
NOISE GENERATOR
POST
BIQUAD
FILTERS
1 & 2
GAIN
Σ
ENVIRONMENTAL
CLASSIFICATION
CONTROL
(MS/DIGVC)
POST
BIQUAD
FILTERS
3 & 4
3k75
3k75
3k75
3k75
V
B
2322212019
8
7
5
6
4
10
9
14
13
2
15
16
17
18
1
12
11
R3920
Impulse Noise Reduction (INR)
Graphic EQ (16 bands)
Noise Reduction
WDRC (16 channels)
Figure 4. Typical Application Circuit
* If Input Mode = 1 mic omni, mic + telecoil, mic + DAI
** If Input Mode = 2 mic omni, rear only, directional
Note: All resistors in ohms and all capacitors in farads, unless otherwise stated.
B
PROGRAMMING
INTERFACE
EEPROM
M
U
X
D/A
HBRIDGE
PEAK
CLIPPER
CONTROL
A/D
A/D
A/D
CLOCK
GENERATOR
POR
CIRCUITRY
CROSS
FADER
MIC/TCOIL
COMP
AGCO
FEEDBACK
CANCELLER
Graphic EQ (16 bands)
FREQUENCY
BAND
ANALYSIS
FREQUENCY
BA N D
SYNTHESIS
WIDEBAND
128 bands
VOLTAGE
REGULATOR
VOLUME
CONTROL
PRE
BI Q UA D
FILTERS
ADAPTIVE
DIRECTIONAL
MICROPHONE
or
FRONTWAVE
*
**
DATA
LOGGING
ACOUSTIC
INDICATORS
Σ
AND SHAPER
NOISE GENERATOR
POST
BIQUAD
FILTERS
1 & 2
GAIN
Σ
ENVIRONMENTAL
CLASSIFICATION
CONTROL
(MS/DIGVC)
POST
BIQUAD
FILTERS
3 & 4
Zero Biased Receiv
2
15
16
17
18
1
10
9
12
14
8
7
5
6
4
3
11
13
2322212019
Noise Reduction
WDRC (16 channels)
Impulse Noise Reduction (INR)
R3920
