參數(shù)資料
型號: TL851N
廠商: Texas Instruments, Inc.
英文描述: SONAR RANGING CONTROL
中文描述: 聲納測距控制
文件頁數(shù): 2/6頁
文件大小: 82K
代理商: TL851N
TL851
SONAR RANGING CONTROL
SLSS004 – SEPTEMBER 1983 – REVISED MARCH 1988
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
GAIN CONTROL OUTPUT TABLE
STEP
NUMBER
GCD
GCC
GCB
GCA
TIME (ms)
FROM INITIATE
2.38 ms
5.12 ms
7.87 ms
10.61 ms
13.35 ms
16.09 ms
18.84 ms
21.58 ms
27.07 ms
32.55 ms
38.04 ms
INIT
0
1
2
3
4
5
6
7
8
9
10
11
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
H
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
This is the time to the end of the indicated step and assumes a nominal
420-kHz ceramic resonator.
functional block diagram
Transmit Enable
CT
16
CT
>
16
CLR
+
Gain Step
Counter
+ 8.5
+ 4.5
CLR
Frequency
Divider
G
420-kHz
Oscillator
S
R
S
R
Blanking
Latch
1.2 V
Echo
Latch
ECHO
1
GCA
GCB
GCC
GCD
5
6
7
4
10
2
OSC
XMIT
VCC
FILT
13
XTAL1
XTAL2
INIT
BINH
BLNK
REC
GND
11
12
14
15
16
8
3
9
Internal
Blanking
Filtered Supply
CT
208
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