Pro-Wave Electronics Corp.
Tel: 886-2-22465101
Fax: 886-2-22465105
E-mail: sales@pro-wave.com.tw
URL: http://www.prowave.com.tw
Block Diagram
Vref
20
Vcc
Vreg
18
GND
17
CLK
16
ORC3
15
ORC2
14
ORC1
13
Ftrace
12
Driver_O
11
19
System
Clock
Sensor
Driver
4V Regulator
Ultrasonic R/C Oscillator
Auto Frequency
Tracking
Timer
High-Speed
Comparator
Control
Center
32 Steps
TCG Amp
Fixed Gain
Amp
Band-pass Filter
1st Pre-Amp
1
2
3
4
5
6
7
8
9
10
I_O
HP_O
HP_I
LP_O
LP_I
TCG_O
TCG_I
GR_O
GR_I
ECHO
Pin Assignment
1
2
3
4
20
19
18
17
16
15
14
13
12
11
I_O
HP_O
HP_I
Vref
Vcc
Vreg
GND
CLK
LP_O
LP_I
TCG_O
TCG_I
GR_O
GR_I
5
6
7
8
9
ORC3
ORC2
ORC1
Ftrace
Driver_O
10
ECHO
2
ETC [ ETC ]
