Rainbow-electronics DS1843 Instrukcja Użytkownika

Przeglądaj online lub pobierz Instrukcja Użytkownika dla Komunikacja Rainbow-electronics DS1843. Rainbow Electronics DS1843 User Manual Instrukcja obsługi

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General Description
The DS1843 is a sample-and-hold circuit useful for cap-
turing fast signals where board space is constrained. It
includes a differential, high-speed switched capacitor
input sample stage, offset nulling circuitry, and an out-
put buffer. The DS1843 is optimized for use in optical
line transmission (OLT) systems for burst-mode RSSI
measurement in conjunction with an external sense
resistor.
Applications
Gigabit Passive Optical Network (GPON) OLT
Gigabit Ethernet Passive Optical Network (GEPON) OLT
GPON Optical Network Unit
Sample and Hold
Features
Fast Sample Time < 300ns
Hold Time > 100µs
Low Input Offset
Buffered Output
Small, 8-Pin µDFN (2mm x 2mm) Pb-Free Package
DS1843
Fast Sample-and-Hold Circuit
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
V
OUTN
MAIN MEMORY
EEPROM/SRAM
A/D CONFIG/RESULTS,
SYSTEM STATUS BITS,
ALARMS/WARNINGS,
LOOKUP TABLES,
USER MEMORY
CONTROLLER
V
INP
V
CC
V
INN
SEN
GND
V
OUTP
V
CC
DEN
SDA
SCL
MON1
BIAS
DAC
12-BIT
ADC
MOD
DAC
BMD
SEN
STROBE
STROBE
MON4
MON3P
MON3N
ANALOG MUX
3.3V
3.3V
TEMP
SENSOR
I
2
C
INTERFACE
DS1843
DS1842/
MAX4007
R
IN
C
S
C
S
C
IN
C
IN
CONTROL
LOGIC
Typical Operating Circuit
19-4539; Rev 0; 5/09
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
TRL = Tape and reel.
PART TEMP RANGE PIN-PACKAGE
DS1843D+ -40°C to +8C 8 μDFN
DS1843D+TRL -40°C to +8C 8 μDFN
Pin Configuration appears at end of data sheet.
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Podsumowanie treści

Strona 1 - Fast Sample-and-Hold Circuit

General DescriptionThe DS1843 is a sample-and-hold circuit useful for cap-turing fast signals where board space is constrained. Itincludes a different

Strona 2

DS1843Fast Sample-and-Hold Circuit2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSREC

Strona 3

DS1843Fast Sample-and-Hold Circuit_______________________________________________________________________________________ 3Note 1: All voltages are re

Strona 4

DS1843Fast Sample-and-Hold Circuit4 _______________________________________________________________________________________ICC vs. VCCDS1843 toc01VCC

Strona 5

DS1843Fast Sample-and-Hold Circuit_______________________________________________________________________________________5DIFFERENTIAL OUTPUT, TRANSIE

Strona 6

DS1843Fast Sample-and-Hold Circuit6 _______________________________________________________________________________________Detailed DescriptionThe DS1

Strona 7

DS1843Fast Sample-and-Hold Circuit_______________________________________________________________________________________ 7Applications Information Po

Strona 8 - Package Information

2) Accuracy of internal circuitry between tS- tIST:where t2= (tS- tIST) and (RSWx CS) ~ = 12ns.3) Total accuracy of input at sampling time, tS:where n

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