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3D7438x-50

更新时间： 2024-09-17 00:53:59
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DATADELAY /
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MONOLITHIC 8-BIT PROGRAMMABLE DELAY LINE (SERIES 3D7438)

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3D7438x-50 数据手册

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3D7438  
MONOLITHIC 8-BIT  
PROGRAMMABLE DELAY LINE  
Super-Fine Resolution  
(SERIES 3D7438)  
FEATURES  
PACKAGES  
IN  
SO  
AE  
1
2
3
4
8
VDD  
OUT  
SC  
7
6
5
All-silicon, low-power CMOS technology  
TTL/CMOS compatible inputs and outputs  
Vapor phase, IR and wave solderable  
Leading- and trailing-edge accuracy  
Programmable via serial or parallel interface  
Increment range: 50ps through 250ps  
Delay tolerance: 0.5% (See Table 1)  
Supply current: 3mA typical  
GND  
SI  
IN  
AE  
SO/P0  
P1  
P2  
P3  
P4  
GND  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
VDD  
OUT  
MD  
P7  
P6  
SC  
P5  
3D7438Z-xx SOIC8  
IN  
AE  
P0  
P1  
P2  
P3  
GND  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
VDD  
OUT  
P7  
P6  
P5  
P4  
GND  
SI  
8
3D7438S-xx SOW16  
Temperature stability: 1.5% max (-40C to 85C)  
Vdd stability: 0.5% max (4.75V to 5.25V)  
3D7438D-xx SOIC14  
For mechanical dimensions, click here.  
For package marking details, click here.  
FUNCTIONAL DESCRIPTION  
PIN DESCRIPTIONS  
The 3D7438 device is a versatile 8-bit programmable monolithic delay  
line. The input (IN) is reproduced at the output (OUT) without inversion,  
shifted in time as per the user selection. Delay values, programmed  
either via the serial or parallel interface, can be varied over 255 equal  
steps according to the formula:  
IN  
Signal Input  
OUT Signal Output  
MD  
AE  
Mode Select  
Address Enable  
P0-P7 Parallel Data Input  
SC  
SI  
SO  
Serial Clock  
Serial Data Input  
Serial Data Output  
Ti,nom = Tinh + i * Tinc  
where i is the programmed address, Tinc is the delay increment (equal  
to the device dash number), and Tinh is the inherent (address zero)  
delay. The device features both rising- and falling-edge accuracy.  
VDD +5 Volts  
GND Ground  
The all-CMOS 3D7438 integrated circuit has been designed as a reliable, economic alternative to hybrid  
TTL programmable delay lines. It is offered in a standard surface mount 16-pin SOL. An 8-pin SOIC  
package is available for applications where the parallel interface is not needed. Similarly, a 14-pin SOIC is  
offered for applications where the serial interface is not needed.  
TABLE 1: PART NUMBER SPECIFICATIONS  
PART  
DELAYS AND TOLERANCES  
INPUT RESTRICTIONS  
Inherent  
Delay (ns) Range (ns)  
Delay  
Delay  
Step (ps)  
Max Freq  
(Addr=0)  
150 MHz  
Max Freq  
(Addr=255)  
98 MHz  
Min P.Width  
(Addr=0)  
3.3 ns  
Min P.Width  
(Addr=255)  
5.1 ns  
NUMBER  
3D7438x-50  
3D7438x-60  
3D7438x-75  
3D7438x-80  
3D7438x-100  
3D7438x-125  
3D7438x-150  
3D7438x-200  
3D7438x-250  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
7.0 0.5  
12.750 .05  
15.300 .06  
19.125 .08  
20.400 .08  
25.500 .10  
31.875 .13  
38.250 .15  
51.000 .20  
63.750 .25  
50 25  
60 30  
75 38  
150 MHz  
150 MHz  
150 MHz  
150 MHz  
150 MHz  
150 MHz  
150 MHz  
150 MHz  
82 MHz  
65 MHz  
61 MHz  
49 MHz  
39 MHz  
32 MHz  
24 MHz  
19 MHz  
3.3 ns  
3.3 ns  
3.3 ns  
3.3 ns  
3.3 ns  
3.3 ns  
3.3 ns  
3.3 ns  
6.1 ns  
7.6 ns  
8.1 ns  
10.0 ns  
12.7 ns  
15.3 ns  
20.4 ns  
25.5 ns  
80 40  
100 50  
125 63  
150 75  
200 100  
250 125  
NOTES: Replace the ‘x’ in the part number with D, S or Z, depending on choice of package.  
Any dash number between 50 and 250 not shown is also available as standard.  
See application notes section for more details  
2010 Data Delay Devices  
Doc #10004  
7/8/2010  
DATA DELAY DEVICES, INC.  
3 Mt. Prospect Ave. Clifton, NJ 07013  
1
123456

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