4

FN4831.14

December 18, 2006

Thermal Information

Maximum Supply Voltages

Uncommitted Switch Voltage . . . . . . . . . . . . . . . . . . . . . . . . -110V

Maximum Tip/Ring Negative Voltage Pulse (Note 8) . . . . . . VBH -15V

Maximum Tip/Ring Positive Voltage Pulse (Note 8) . . . . . . . . . . . .+8V

ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V

Operating Conditions

Temperature Range

Commercial (C suffix) . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +85°C

Industrial (I suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Uncommitted Switch (loop back or relay driver) . . . . . +5V to -100V

Thermal Resistance (Typical)

PLCC (Note 1) . . . . . . . . . . . . . . . . . . .

53

N/A

QFN (Note 2) . . . . . . . . . . . . . . . . . . . .

27

1

Maximum Junction Temperature Plastic . . . . . . . . . . . . . . . +150°C

Maximum Storage Temperature Range . . . . . . . . . -65°C to +150°C

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C

(PLCC - Lead Tips Only)

For Recommended soldering conditions see Tech Brief TB389

Die Characteristics

Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bipolar-DI

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

1.

TB379 for details.

2.

θ

features including conductive thermal vias.

See Tech Brief 379 and AN9922 for additional information and board layout considerations.

Electrical Specifications

All AC parameters are specified at 600

Ω 2-wire terminating impedance over the frequency band of 300Hz to

3.4kHz. Protection resistors = 0

Ω.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

RINGING PARAMETERS

VRS Input Impedance (Note 3)

450

-

-

k

Ω

Differential Ringing Gain (Note 4)

78

80

82

V/V

40

V/V

Centering Voltage Accuracy

-

± 2.5

-

V

-

± 2.5

-

V

Open Circuit Ringing Voltage

-67-

33.5

Ringing Voltage Total Distortion

-

-

4.0

%

4-Wire to 2-Wire Ringing Off Isolation

Active Mode, Referenced to VRS Input

-

90

-

dB

2-Wire to 4-Wire Transmit Isolation

Ringing Mode Referenced to the Differential

Ringing Amplitude

-80-

dB

AC TRANSMISSION PARAMETERS

Receive Input Impedance (Note 3)

160

-

-

k

Ω

Transmit Output Impedance (Note 3)

--

1

Ω

4-Wire Port Overload Level (Note 3)

THD = 1%

3.1

3.5

-

2-Wire Port Overload Level (Note 3)

THD = 1%

3.1

3.5

-

2-Wire Return Loss

300Hz

-

24

-

dB

1kHz

-

40

-

dB

3.4kHz

-

21

-

dB

HC55185