Datasheet > PPG323F-20

PPG323F-20

更新时间： 2024-11-24 00:55:47

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描述
23-BIT CRYSTAL-STABILIZED PULSE GENERATOR (SERIES PPG323F)

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PPG323F-20 数据手册

PPG323F

23-BIT CRYSTAL-STABILIZED

PULSE GENERATOR

(SERIES PPG323F)

FEATURES

PINOUT



Digitally programmable in 8,388,608 steps

Monotonic pulse-width-vs-address variation

Rising edge triggered

A11

A10

OUT

GND

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

RES

VCC

Precise and stable pulse width

Low jitter over entire programmable range

Input & outputs fully TTL interfaced & buffered

10 T²L fan-out capability

FUNCTIONAL DESCRIPTION

PIN DESCRIPTIONS

The PPG323F-series device is a 23-bit digitally programmable pulse

generator. The width, PW_A, depends on the address code (A22-A0)

according to the following formula:

TRIG

OUT

Trigger Input

Pulse Output

A0-A22 Address Bits

VCC

GND

+5 Volts

Ground

PW_A= PW₀+ T_INC* A

where A is the address code, T_INCis the incremental pulse width of the

device, and PW₀is the inherent pulse width of the device. The incremental

width is specified by the dash number of the device and can range from 20ns through 5us, inclusively. RES

is held LOW during normal operation. When it is brought HIGH, OUT is forced into a LOW state, and the

unit is ready for the next trigger input. The address is not latched and must remain asserted while the output

pulse is active. The PPG323F is crystal-stabilized, providing low jitter (350ps RMS) over the entire address

range.

DASH NUMBER SPECIFICATIONS

SERIES SPECIFICATIONS

Part

Number

Incremental

Width

Per Step (ns)

Total Width

Change (sec)



Pulse width tolerance: 0.05% or 100ps,

whichever is greater



Inherent width (PW₀): 100ns typical

Inherent delay (T_TO): 10ns typical

Operating temperature: -40 to 85 C

Supply voltage V_CC: 5VDC  5%

Supply current: I_CC= 200ma typical

PPG323F-20

PPG323F-50

0.16777

0.41943

0.83886

1.6777

4.1943

8.3886

16.777

41.943

100

200

500

1000

2000

5000

PPG323F-100

PPG323F-200

PPG323F-500

PPG323F-1000

PPG323F-2000

PPG323F-5000

NOTE: Any dash number between 20 and 5000

not shown is also available.

2014 Data Delay Devices

Doc #14016

6/9/2014

DATA DELAY DEVICES, INC.

3 Mt. Prospect Ave. Clifton, NJ 07013

12 3 4 5

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