GB3221 Datasheet, PDF (6/8 Pages) ON Semiconductor – Preconfigured DSP System

PARAGON GB3221
TYPICAL APPLICATIONS (continued)
MS2
MS
22
47m
VC
200k(log)
12
5
4
11 13
205n
13n
7
REGULATOR
VC
A/D
INTERFACE EEPROM
V_B
14
GB3221
9
70n
70n
6
10
60n
A/D
FRONTWAVE
A/D
8
CHANNEL 1
CHANNEL 2
S
CHANNEL 3
CHANNEL 4
D/A
HBRIDGE
15
1
Knowles or
Sonion
zero−bias
receiver
3
2
All resistors in ohms, all capacitors in farads unless otherwise stated.
Knowles or Sonion microphones
Figure 3. Sample Application Circuit
T−coil
MS2
MS
switch
switch (N.O.)
Front
Mic
+
Rear
Mic
+
VC
Zero Biased
Receiver
CS44
Figure 4. Assembly Diagram
http://onsemi.com
6