DS1123LE-50+ Maxim Integrated Products, DS1123LE-50+ Datasheet

IC TIMING ELEMENT PROG 16-TSSOP

DS1123LE-50+

Manufacturer Part Number
DS1123LE-50+
Description
IC TIMING ELEMENT PROG 16-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1123LE-50+

Number Of Taps/steps
256
Function
Programmable
Delay To 1st Tap
16.5nS
Tap Increment
0.5nS
Available Total Delays
127.5ns
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Independent Delays
-
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

Related parts for DS1123LE-50+

DS1123LE-50+ Summary of contents

Page 1

... 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. OUT/OUT P/S VARIABLE DELAY/PHASE P7 OUTPUT ...

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

Programmable Timing Element ENABLE (LE) t CLOCK (CLK) t DSC SERIAL INPUT (D) t EGV SERIAL INPUT (Q) DELAY TIME Figure 6. Serial Interface Timing Diagram to be shifted to U2, U2’s data would be shifted to U3, ...

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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