DS1123LE-25 Maxim Integrated Products, DS1123LE-25 Datasheet

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DS1123LE-25

Manufacturer Part Number
DS1123LE-25
Description
Delay Lines / Timing Elements 3.3V, 8-Bit, Program mable Timing Element
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1123LE-25

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number
Manufacturer
Quantity
Price
Part Number:
DS1123LE-25+
Manufacturer:
Maxim Integrated Products
Quantity:
135
The DS1123L is an 8-bit programmable timing element
similar in function to the DS1023, but operating at 3.3V.
Like the DS1023, the DS1123L can delay signals up to
a full period or more when used as a delay line, and an
on-chip reference delay can be used to offset the inher-
ent “step-zero” delay. This allows the DS1123L to shift a
clock signal over the full 0 to 360° phase range. In
addition to functioning as a delay line, it can be config-
ured as a free-running oscillator or an externally trig-
gered monostable vibrator.
Rev 2; 8/07
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PROCESSOR
SYSTEM
MICRO-
CLOCK
INTERFACE
3-WIRE
Telecommunications
Digital Test Equipment
Digital Video Projection
Signal Generators and Analyzers
4
3.3V, 8-Bit, Programmable Timing Element
(OPTIONAL)
Typical Operating Circuit
CLK/P1
GND
Q/P0
D/P2
LE
IN
P3
P4
General Description
DS1123L
Applications
V
OUT/OUT
P/S
P7
P6
MS
P5
REF/PWM
CC
_____________________________________________ Maxim Integrated Products
3.3V
VARIABLE
DELAY/PHASE
OUTPUT
REFERENCE
OUTPUT
♦ Step Sizes of 0.25ns, 0.5ns, 1ns, 2ns
♦ On-Chip Reference Delay
♦ Configurable as a Delay Line, Monostable
♦ Can Delay Signals by a Full Period or More
♦ Guaranteed Monotonicity
♦ Parallel and 3-Wire Serial Programming Interface
♦ Single 3.3V Power Supply
♦ 16-pin TSSOP
DS1123LE-25
DS1123LE-50
DS1123LE-100
DS1123LE-200
Vibrator, or Free-Running Oscillator
TOP VIEW
PART
P1/CLK
P0/Q
P2/D
GND
0°C to +70°C 16 TSSOP
0°C to +70°C 16 TSSOP
0°C to +70°C 16 TSSOP
0°C to +70°C 16 TSSOP
P3
P4
LE
IN
RANGE
TEMP
1
2
3
4
5
6
7
8
Ordering Information
DS1123L
Pin Configuration
PIN-
PACKAGE
(150-mil)
16
15
14
13
12
11
10
9
V
OUT/OUT
P/S
P7
P6
MS
P5
REF/PWM
CC
Features
STEP SIZE/
NO. OF STEPS
0.25/256
0.5/256
1/256
2/256
1

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DS1123LE-25 Summary of contents

Page 1

... Configurable as a Delay Line, Monostable Vibrator, or Free-Running Oscillator ♦ Can Delay Signals by a Full Period or More ♦ Guaranteed Monotonicity ♦ Parallel and 3-Wire Serial Programming Interface ♦ Single 3.3V Power Supply ♦ 16-pin TSSOP PART DS1123LE-25 DS1123LE-50 DS1123LE-100 DS1123LE-200 TOP VIEW 3. ...

Page 2

Programmable Timing Element ABSOLUTE MAXIMUM RATINGS Voltage Range on V Pin Relative to Ground .....-0.5V to +6.0V CC *Voltage Range on IN, LE, Q/P0, CLK/P1, D/P2, P3, P4, P5, MS, P6, P7, and P/S Relative to Ground ..........-0.5V ...

Page 3

Programmable Timing Element AC ELECTRICAL CHARACTERISTICS (ALL SPEED OPTIONS +3.0V to 3.6V 0°C to +70°C PARAMETER SYMBOL Serial Clock Frequency Input Pulse Width (LE, CLK) Data Setup to Clock Data Hold from ...

Page 4

Programmable Timing Element AC ELECTRICAL CHARACTERISTICS (DS1123L-25 +3.0V to 3.6V 0°C to +70°C PARAMETER SYMBOL Reference Delay Delay Step Size Step-Zero Delay with Respect to IN Step-Zero Delay with Respect to REF ...

Page 5

Programmable Timing Element AC ELECTRICAL CHARACTERISTICS (DS1123L-50 +3.0V to 3.6V 0°C to +70°C PARAMETER SYMBOL Reference Delay Delay Step Size Step-Zero Delay with Respect to IN Step-Zero Delay with Respect t to ...

Page 6

Programmable Timing Element AC ELECTRICAL CHARACTERISTICS (DS1123L-100 +3.0V to 3.6V 0°C to +70°C PARAMETER SYMBOL Reference Delay Delay Step Size Step-Zero Delay with Respect to IN Step-Zero Delay with Respect t D0REF ...

Page 7

Programmable Timing Element AC ELECTRICAL CHARACTERISTICS (DS1123L-200 +3.0V to 3.6V 0°C to +70°C PARAMETER SYMBOL Reference Delay Delay Step Size Step-Zero Delay with Respect to IN Step-Zero Delay with Respect t to ...

Page 8

Programmable Timing Element Pin Description PIN NAME FUNCTION Input Signal to be Delayed, PWM 1 IN Trigger 2 LE Input-Latch Enable Input P0 (Parallel Mode)/ 3 P0/Q Serial Data Output (Serial Mode) Input P1 (Parallel Mode)/ 4 P1/CLK ...

Page 9

Programmable Timing Element LE MICROPROCESSOR P0-P7 8 ADDITIONAL PERIPHERAL ADDITIONAL PERIPHERAL A) SHARING THE PARALLEL INTERFACE WITH ADDITIONAL PERIPHERALS MICROPROCESSOR P0- PARALLEL INTERFACE DEDICATED TO A DS1123L Figure 2. Parallel Interface Options ...

Page 10

Programmable Timing Element MICROPROCESSOR OUTPUT LE OUTPUT CLK I/O PIN D A) USING A FEEDBACK RESISTOR WITH AN I/O PIN FOR READING THE DS1123L MICROPROCESSOR OUTPUT OUTPUT I/O PIN LE CLK D C) CASCADING MULTIPLE DS1123L ...

Page 11

... Table 1 lists some of the delay char- acteristics of the different speed options available for the DS1123L device. Using the Reference Delay All delay lines have an inherent step-zero delay between IN and OUT (t ) due to the propagation D0 delay through the input and output buffers. To simplify ...

Page 12

Programmable Timing Element IN REF OUT DS1123L Figure 7. Reference Delay Timing DELAY t DMAX t REF t REF0 Figure 8. Delay Parameters IN do not benefit from the REF output’s tendency ...

Page 13

Programmable Timing Element Table 1. DS1123L Delay Line/PWM Ranges and Tolerances MAX DELAY TIME AND STEP SIZE PART MAX PULSE WIDTH* (ns) DS1123L-25 0.25 DS1123L-50 0.5 DS1123L-100 1.0 DS1123L-200 2.0 * This is the maximum delay in normal ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products ...

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