82V2081PPG8 IDT, Integrated Device Technology Inc, 82V2081PPG8 Datasheet - Page 50

• Manufacturer Part Number: 82V2081PPG8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2081PPG8

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

SINGLE CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
5
Table-53 Hardware Control Pin Summary
Pin No.
TQFP
17
16
23
21
20
33
32
31
30
29
28
27
26
HARDWARE CONTROL PIN SUMMARY
RXTXM1
RXTXM0
Symbol
MODE1
MODE0
PULS3
PULS2
PULS1
PULS0
PATT1
PATT0
TERM
RPD
EQ
MODE[1:0]: Operation mode of control interface select
00= Hardware interface
01= Serial interface
10= Parallel – multiplexed – Motorola Interface
11= Parallel – multiplexed – Intel Interface
TERM: Termination interface select
This pin selects internal or external impedance matching for both receiver and transmitter
0= ternary interface with external impedance matching network. External impedance matching is not supported in T1/J1 transmit
1= ternary interface with internal impedance matching network
RXTXM[1:0]: Receive and transmit path operation mode select
00= single rail with HDB3/B8ZS coding
01= single rail with AMI coding
10= dual rail interface with CDR enable
11= slicer mode
PULS[3:0]: These pins are used to select the following functions:
•
•
•
EQ: Receive equalizer on/off
When the chip is configured by hardware, this pin selects Short Haul or Long Haul operation mode
0= short haul (10 dB)
1= long haul (36 dB for T1/J1, 43 dB for E1)
RPD: Receiver power down control
0= Normal operation
1= receiver power down
PATT[1:0]: Transmit test pattern select
In hardware control mode, these pins select the transmit pattern
00 = normal
01= All Ones
10= PRBS
11= transmitter power down
line interface.
1100 - 1111
PULS[3:0]
T1/E1/J1 mode
Transmit pulse template
Internal termination impedance (75Ω/100Ω/110Ω/120Ω)
0000
0001
0010
0100
0101
1000
1001
1010
0011
0110
0111
1011
T1/E1/J1
DSX1
DSX1
DSX1
DSX1
DSX1
DS1
DS1
DS1
DS1
DS1
E1
E1
J1
50
2.048 MHz
2.048 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
1.544 MHz
TCLK
Description
Cable impedance
(internal matching
impedance)
120Ω
100Ω
100Ω
100Ω
100Ω
100Ω
110Ω
100Ω
100Ω
100Ω
100Ω
100Ω
75Ω
Cable range or
-15.0 dB LBO
-22.5 dB LBO
-7.5 dB LBO
133-266 ft
266-399 ft
399-533 ft
533-655 ft
0 dB LBO
0-133 ft
0-655 ft
LBO
TEMPERATURE RANGES
-
-
-
INDUSTRIAL
Cable loss
0.6-1.2 dB
1.2-1.8 dB
1.8-2.4 dB
2.4-3.0 dB
0-28.5 dB
0-13.5 dB
0-13.5 dB
0-0.6 dB
0-3.0 dB
0-43 dB
0-43 dB
0-36 dB
0-21 dB