6

6-151

Model HT81 Series

SCHEMATICS

3

4

Chip

Line

8

6

210

8

7

Chip

Line

4

5

2

91

3

4

Chip

Line

8

6

7

29

Schematic 1

Schematic 2

Schematic 3

3

4

Chip

Line

9

6

7

210

Schematic 4

7

8

6

Chip

Line

4

5

2

91

Schematic 5

Notes: (1) Supports Level One SK70704 with DCR

≤3.2/2.0 Ω IDC @ 75mA. Assume pins 7-8 shorted externally.

(2) Supports Conexant (Rockwell) BT8921, BT8970 with DCR

≤2.2/2.2 Ω, IDC @ 70mA.

(3) Supports Conexant (Rockwell) BT8952 with DCR

≤2.2/4.4 Ω, IDC @ 160mA.

(4) Supports Level One SK70740, SK70741 and SK70742 HDSL chipset with DCR

≤2.2/2.2 Ω, IDC @ 70mA.

(5) OCL tested @ 100mV @ 10kHz with appropriate IDC.

(6) THD tested @ 5kHz, 6Vp-p with 135

Ω load.

(7) Supports Level One SK70720 and SK70721 with DCR

≤3.0/6.0 Ω, IDC @ 75mA.

(8) Longitudinal balance: freqency range specified with 135

Ω.

(9) Supports Conexant (Rockwell) BT8960 with DCR

≤3.0/3.0 Ω, IDC @ 70mA.