DS2151QNB Maxim Integrated Products, DS2151QNB Datasheet - Page 38
DS2151QNB
Manufacturer Part Number
DS2151QNB
Description
IC TXRX T1 1-CH 5V LP IND 44PLCC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2151QB.pdf
(60 pages)
Specifications of DS2151QNB
Function
Single-Chip Transceiver
Interface
T1
Number Of Circuits
1
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
65mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-LCC, 44-PLCC
Includes
Alarm Detector and Generator, CSU Loop Codes Generator and Detector, DSX-1 and CSU Line Build-Outs Generator
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power (watts)
-
12 RECEIVE MARK REGISTERS
The DS2151Q can replace the incoming data on a channel-by-channel basis with either an idle code (7F
hex) or the digital milliwatt code, which is an 8-byte repeating pattern that represents a 1kHz sine wave
(1E/0B/0B/1E/9E/8B/8B/9E). The RCR2.7 bit will determine which code is used. Each bit in the RMRs,
represents a particular channel. If a bit is set to a 1, then the receive data in that channel will be replaced
with one of the two codes. If a bit is set to 0, no replacement occurs.
RMR1/RMR2/RMR3: RECEIVE MARK REGISTERS (Address=2D to 2F Hex)
(MSB)
CH16
CH24
CH8
SYMBOL
CH24
CH1
CH15
CH23
CH7
CH14
CH22
CH6
POSITION
RMR3.7
RMR1.0
CH13
CH21
CH5
NAME AND DESCRIPTION
Receive Channel Blocking Registers.
0 = do not affect the receive data associated with this
channel
with either the idle code or the digital milliwatt code
(depends on the RCR2.7 bit)
1 = replace the receive data associated with this channel
CH12
CH20
38 of 60
CH4
CH11
CH19
CH3
CH10
CH18
CH2
(LSB)
CH17
CH1
CH9
RMR1 (2D)
RMR2 (2E)
RMR3 (2F)