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參數(shù)資料
| 型號： | AD246JN |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 0K |
| 描述： | IC CLK BUFF DVR 1:1 25KHZ 24-DIP |
| 標準包裝： | 1 |
| 類型： | 緩沖器/驅(qū)動器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:1 |
| 差分 - 輸入:輸出： | 無/無 |
| 輸入： | 時鐘 |
| 輸出： | 時鐘 |
| 頻率 - 最大： | 25kHz |
| 電源電壓： | 14.25 V ~ 15.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 24-DIP（0.500"，12.70mm），4 引線 |
| 供應(yīng)商設(shè)備封裝： | 24-DIP |
| 包裝： | 管件 |
a
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Analog Devices, Inc., 2002
AD246
Clock Driver
AD246 SPECIFICATIONS
(Typical @ 25
∞C and VS = 15 V, unless otherwise noted.)
Model
AD246JY
AD246JN
OUTPUT
*
Frequency
25 kHz Nominal
Voltage
15 V p-p Nominal 15 V p-p Nominal
Fan Out
32 max
POWER SUPPLY
REQUIREMENTS
Input Voltage
15 V
± 5%
15 V
± 5%
Supply Current
Unloaded
35 mA
Each AD204
2.2 mA
Adds 1 mA
Load on AD204
+VISO or
–VISO Adds
0.7 mA
*The high current drive will not support a short to ground.
Specifications are subject to change without notice.
AD246 Pin Designations
Pin (Y)
Pin (N)
Function
112
15 V Power In
21
Clock Output
12
14
Common
13
24
Common
GENERAL DESCRIPTION
The AD246 is a compact, inexpensive clock driver that can be
used to obtain the required clock from a single 15 V supply. The
circuit shown in Figure 1 (essentially an AD246) can operate at
least 32 AD204s at the rated minimum supply voltage of 14.25 V
and one additional isolator can be operated for each 40 mV
increase in supply voltage up to 15 V.
A supply bypass capacitor is included in the AD246, but if many
AD204s are operated from a single AD246, an external bypass
connector should be used with a value of at least 1
mF for every
five isolators used. Place the capacitor as close as possible to the
clock driver.
CD
4947B
C
RC
R
Q
+ 1 F
35V
TELEDYNE
TSC426
CLKOUT
CLK AND
PWR COM
15V
IN914
7
5
3
6
2
4
10
5
6
4
7
8
9
12
14
180pF
49.9k
1
2
3
Figure 1. Clock Driver
OUTLINE DIMENSIONS
AD246JY Package
Dimensions shown in inches and (millimeters)
8.40 (0.330) MAX
2.50 (0.100)
NOM
15.90
(0.625)
MAX
2.90 (0.115)
SIDE
VIEW
0.38 (0.015)
0.25 (0.010)
1
2
13
12
2.50
(0.100)
2.90
(0.115)
CL
BOTTOM
VIEW
1.30 (0.050)
NOM
2.50
(0.100)
MIN
25.30 (0.995) MAX
AD246JY
FRONT VIEW
14.00 (0.550)
5.00 (0.197)
0.38 (0.015)
0.25 (0.010)
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
AD246JN Package
Dimensions shown in inches and (millimeters)
FRONT VIEW
AD246JN
36.70 (1.445) MAX
2.50 (0.100)
MIN
8.90 (0.350)
MAX
0.51 (0.020)
0.25 (0.010)
3.70 (0.145)
0.51 (0.020)
0.38 (0.015)
1
12
14
24
BOTTOM VIEW
27.90 (1.100)
25.40 (1.000)
12.70
(0. 500)
17.80
(0.700)
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
REV. 0
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