82V2048DA IDT, Integrated Device Technology Inc, 82V2048DA Datasheet - Page 20

• Manufacturer Part Number: 82V2048DA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V2048DA

• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

Table-13 Transformer Specifications
1.
Table-11 Output Jitter Specification
IDT82V2048 OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT
2.7
TRINGn connections provide a matched interface to the cable.
14
for one transmit/receive channel.
values based on the specific application.
Table-12 External Components Values
2.8
are driven through a pair of 9.5
STD Temp.
Pulse T1124 transformer is recommended to be used in Standard (STD) operating temperature range (0°C to 70°C), while Pulse T1114 transformer is recommended to be used in
Extended (EXT) operating temperature range is -40°C to +85°C.
shows the appropriate external components to connect with the cable
The transmit and receive interface RTIPn/RRINGn and TTIPn/
All transmit driver power supplies must be 5.0 V or 3.3 V.
In E1 mode, despite the power supply voltage, the 75
T1124
LINE INTERFACE CIRCUITRY
TRANSMIT DRIVER POWER SUPPLY
AT&T Pub 62411
TR-TSY-000009
Part No.
GR-253-CODE
Component
D1 - D4
EXT Temp.
T1
R
R
Cp
T1114
R
T
NOTE:
1. Pulse T1124 transformer is recommended to be used in Standard (STD) operating temperature range (0°C to 70°C), while Pulse T1114
transformer is recommended to be used in Extended (EXT) operating temperature range is -40°C to +85°C. See Transformer Specifications Table
for details.
2. Typical value. Adjust for actual board parasitics to obtain optimum return loss.
3. Common decoupling capacitor for all VDDT and GNDT pins. One per chip.
Turns Ratio (Pri: sec ± 2%)
Transmit
1:2CT
Ω
R
X
T
series resistors and a 1:2 transformer.
Table-12
Line
X
B
Line
A
(1)
Figure-14 External Transmit/Receive Line Circuitry
•
•
2:1
summarizes the component
2:1
9.31 Ω ± 1%
Receive
9.5 Ω ± 1%
ETSI CTR 12/13
75 Ω Coax
1
1CT:2
1
•
•
Nihon Inter Electronics - EP05Q03L, 11EQS03L, EC10QS04, EC10QS03L; Motorola - MBR0540T1
ITU-T G.736
ITU-T G.783
ITU-T G.742
0.22 µF
E1
Cp
2
•
•
•
1 kΩ
1 kΩ
R
R
R
Ω
OCL @ 25°C (mH MIN)
R
R
R
Transmit
T
T
Electrical Specification @ 25°C
/120
1.2
VDDT
D6
D5
VDDT
2200 pF
Figure-
Ω
D8
D7
VDDT
VDDT
D2
D1
E1
D4
lines
D3
Receive
20
RTIPn
RRINGn
TTIPn
TRINGn
One of Eight Identical Channels
1.2
120 Ω Twisted Pair
a pair of 9.1
the transmit return loss performance and protect the device from surges
coupling into the device.
In T1 mode, only 5.0 V can be selected, 100 lines are driven through
In harsh cable environment, series resistors are required to improve
9.5 Ω ± 1%
15 Ω ± 1%
Transmit
.6
L
L
Ω
(µH MAX)
series resistors and a 1:2 transformer.
VDDDn
GNDTn
Receive
.6
0.1 µF
VDDT
INDUSTRIAL TEMPERATURE RANGES
•
•
Transmit
C
35
W/W
100 Ω Twisted Pair, VDDT = 5.0 V
68 µF
(pF MAX)
3
Receive
35
12.4 Ω ± 1%
9.1 Ω ± 1%
1000 pF
T1
Package/Schematic
TOU/3