12

Agere Communications Inc.

Data Sheet

September 2001

L7585F Full-Feature, Low-Power SLIC and Switch

Table 7. Analog Signal Pins

1. This parameter is not tested in production; it is guaranteed by design and device characterization.

2. VTX offset is measured with respect to pin VRTX.

tance or tip/ring voltage.

Parameter

Min

Typ

Max

Unit

Output Offset (no loop current)

Output Drive Current

Output Voltage Swing (+0.25 mA/–3 mA load):

Maximum

Minimum

Output Short-circuit Current

Output Load Resistance

—

0.25

–10

—

5

—

—

—

—

—

—

—

—

±200

–3.0

0.5

±20

—

50

mV

mA

V

V

mA

k

Ω

pF

VITR and VTX:

Output Drive Current

Output Voltage Swing (±1 mA load):

Maximum

Minimum (VITR)

Minimum (VTX)

Output Short-circuit Current

Output Load Resistance

—

±1

–10

±3.5

–3.5

—

4

—

—

—

—

—

—

—

—

—

±100

—

—

±20

—

50

mV

mA

V

V

V

mA

k

Ω

pF

VRTX:

Output Voltage

Output Drive Current

Output Short-circuit Current

2.2

±500

—

—

2.4

—

—

—

2.6

—

±15

50

V

µA

mA

pF

RSW:

Impedance to Ground

3

—

—

M

Ω

DCR:

Input Bias Current

Input Impedance

–8

—

500

—

—

—

0

±1

—

V

µA

k

Ω

TXI:

Input Impedance

Input Voltage Compliance

Input Clamp Voltage

75

±0.4

±0.4

—

—

—

—

—

±0.8

k

Ω

V

V

RCVP and RCVN:

Input Voltage Range

Input Bias Current

Input Impedance

–2.5

—

10

—

—

—

±1.5

—

V

µA

M

Ω

PT and PR:

Overvoltage (from external source; continuous)

—

—

±265

V

FB1 and FB2:

ac Output Impedance

Output Short-circuit Current

—

±27

—

—

10

±34

k

Ω

µA

CF1 and CF2:

180

—

375

k

Ω