SLIC Products

7

ELECTRICAL CHARACTERISTICS (continued)

Description

Test Condition (See Note 1)

Min

Typ

Max

Unit

Note

Total Harmonic Distortion (2- to 4-Wire or 4- to 2-Wire) without Metering (See Test Circuits A and B)

0 dBm

+9 dBm

300 Hz to 3.4 kHz

–64

–55

–50

–40

dB

Total Harmonic Distortion

with metering

–35

4, 11

Idle Channel Noise without Metering

Psophometric weighted noise

2-wire

4-wire

–75

–80

dBmp

7

Psophometric idle channel noise

with metering

2-wire

4-wire

–46

–52

4, 7, 12

4, 7, 12

Single Frequency Out-of-Band Noise (See Test Circuit E)

Metallic

4 kHz to 9 kHz

9 kHz to 1 MHz

256 kHz and harmonics

–76

–76

–57

dBm

4, 5, 9

4, 5, 9

4, 5

Longitudinal

1 kHz to 15 kHz

Above 15 kHz

256 kHz and harmonics

–70

–85

–57

4, 5, 9

4, 5, 9

4, 5

Apparent battery voltage

Active state

47

50

53

V

Loop current accuracy

Active state

–7.5

+7.5

%

Loop current, Tip Open state

Open Circuit state

1.0

mA

Loop current limit accuracy

OHT state

–15

+15

%

10

Loop current—Active state

14.33

Loop current—Active state

Battery = –48.0 V

17.5

41

50

mA

Loop current—OHT

Battery = –47.0 V

9.35

15.5

B shorted to GND in OHT state

56

80

A and B shorted to GND in

Active state

110

Battery Current in Fault Condition

OHT state

A and B to GND

40

mA

Active state

A and B to GND

55

Power Dissipation

On hook, Open Circuit state

On hook, OHT state

On hook, Active state

Off hook, OHT state

40

140

190

350

80

200

300

500

mW

Off hook, Active state

(See Figure 2)

750

900

900

1100