Nordtek
 

HPT Series-HDSL Transformer

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Features

  • complies with ANSI and ETSI requirements
  • matched to all leading chip sets
  • very lowTHD permits maximum loop lengths
  • 1,500V minimum isolation
  • excellent quality at competitive price due to high volume production
  • manufactured in ISO-9001 approved facility
   HPT Series - HDSL Transformer


Transformer Selection Guide

  

Typical Performance Data
Manufacturer IC Type Application Transformer
Rockwell
(Brooktree)		 BT8921/BT8970
BT8921/BT8970		 784Kbps
1.168Kbps		 HPT-100A
HPT-110A
BT8952
BT8952		 784Kbps
1.168Kbps
 HPT-120A
HPT-130A
BT8960
BT8960
BT8960
 416Kbps
288Kbps
160Kbps		 HPT-140A
HPT-150A
HPT-160A
Level One SK70704/SK70706
SK70704/SK70721
 784Kbps
1.168Kbps		 HPT-170B
HPT-180C
 
THD -70dB max.
100kHz, 5Vpp
Longitudinal
Balance		 50dB min
40-300kHz
Return Loss 16.5dB min
40-300kHz
Matched to 135 Ohm Line Impedance


Electrical Specifications @ 25°C
Operating Temperature: -40°C to +85°C
Part Number Turns Ratio
±2%
IC : Line		 OCL
(mH)		 LL
(µH) Max.		 DCR
(Ohms)
IC / Line		 IDC
(mA)		 Isolation
Voltage
(Vrms Min.)		 Schematic
 HPT-100A
 HPT-110A		 1ct:1:1
1ct:1:1		 3,0±6%
2,0±6%		 20
20		 2,3 / 2,3
2,3 / 2,3		 70
70		 1.500
1.500		 A
A
 HPT-120A
 HPT-130A		 2ct:1 :1
2ct:1 :1		 3,0±6%
2,0±6%		 20
20		 4,6 / 2,3
4,6 / 2,3		 160
160		 1.500
1.500		 A
A
 HPT-140A
 HPT-150A
 HPT-160A		 1ct:1:1
1ct:1:1
1ct:1:1		 3,5±10%
5,0±10%
8,0±10%		 40
40
40		 2,3 / 2,3
2,6 / 2,6
2,6 / 2,6		 70
70
70		 1.500
1.500
1.500		 A
A
A
 HPT-170B
 HPT-180C		 1ct:1,8ct
1ct:0,9:0,9		 2,75±6%
2,03±6%		 20
20		 3,2 / 3,0
2,0 / 2,0		 75
75		 2.000
2.500		 B
C


Dimensions & Schematic - Pins