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參數(shù)資料
| 型號： | 3D7220G-700 |
| 廠商： | DATA DELAY DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
| 中文描述： | ACTIVE DELAY LINE, TRUE OUTPUT, PDSO14 |
| 封裝： | ROHS COMPLIANT, GULL-WING, DIP-14 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 135K |
| 代理商： | 3D7220G-700 |
3D7220
APPLICATION NOTES
OPERATIONAL DESCRIPTION
The 3D7220 ten-tap delay line architecture is
shown in Figure 1. The delay line is composed of
a number of delay cells connected in series.
Each delay cell produces at its output a replica of
the signal present at its input, shifted in time. The
delay cells are matched and share the same
compensation signals, which minimizes tap-to-
tap delay deviations over temperature and supply
voltage variations.
INPUT SIGNAL CHARACTERISTICS
The Frequency and/or Pulse Width (high or low)
of operation may adversely impact the specified
delay accuracy of the particular device. The
reasons for the dependency of the output delay
accuracy on the input signal characteristics are
varied and complex. Therefore a
Maximum and
an Absolute Maximum
operating input frequency
and a Minimum and an Absolute Minimum
operating pulse width have been specified.
OPERATING FREQUENCY
The Absolute Maximum Operating Frequency
specification, tabulated in Table 1, determines
the highest frequency of the delay line input
signal that can be reproduced, shifted in time at
the device output, with acceptable duty cycle
distortion.
The Maximum Operating Frequency specification
determines the highest frequency of the delay
line input signal for which the output delay
accuracy is guaranteed.
To guarantee the Table 1 delay accuracy for
input frequencies higher than the
Maximum
Operating Frequency, the 3D7220 must be
tested at the user operating frequency.
Therefore, to facilitate production and device
identification, the part number will include a
custom reference designator identifying the
intended frequency of operation. The
programmed delay accuracy of the device is
guaranteed, therefore, only at the user specified
input frequency. Small input frequency variation
about the selected frequency will only marginally
impact the programmed delay accuracy, if at all.
Nevertheless, it is strongly recommended that
the engineering staff at DATA DELAY DEVICES
be consulted.
OPERATING PULSE WIDTH
The Absolute Minimum Operating Pulse Width
(high or low) specification, tabulated in Table 1,
determines the smallest Pulse Width of the delay
line input signal that can be reproduced, shifted
in time at the device output, with acceptable
pulse width distortion.
The
Minimum Operating Pulse Width (high or
low) specification determines the smallest Pulse
Width of the delay line input signal for which the
output delay accuracy tabulated in Table 1 is
guaranteed.
To guarantee the Table 1
delay accuracy for
input pulse width smaller than the Minimum
Operating Pulse Width, the 3D7220 must be
tested at the user operating pulse width.
Therefore, to facilitate production and device
identification, the part number will include a
VDD
O1
IN
O2
O3
O4
Temp & VDD
Compensation
GND
Figure 1: 3D7220 Functional Diagram
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
O5
O6
O7
O8
O9
O10
Doc #03004
4/15/05
DATA DELAY DEVICES, INC.
2
Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 3D7220S-.75 | 制造商:DATADELAY 制造商全稱:Data Delay Devices, Inc. 功能描述:MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
| 3D7220S-1 | 制造商:DATADELAY 制造商全稱:Data Delay Devices, Inc. 功能描述:MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
| 3D7220S-1.5 | 制造商:DATADELAY 制造商全稱:Data Delay Devices, Inc. 功能描述:MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
| 3D7220S-10 | 制造商:DATADELAY 制造商全稱:Data Delay Devices, Inc. 功能描述:MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
| 3D7220S-100 | 制造商:DATADELAY 制造商全稱:Data Delay Devices, Inc. 功能描述:MONOLITHIC 10-TAP FIXED DELAY LINE (SERIES 3D7220) |
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