SLIC Products

7

Balance Return Signal (4- to 4-Wire; See Test Circuit B)

Gain accuracy

0 dBm, 1 kHz,

0

°C to +70°C

0 dBm, 1 kHz, –40

°C to +85°C

0 dBm, 1 kHz,

0

°C to +70°C

–1*

0 dBm, 1 kHz, –40

°C to +85°C

–1

–6.00

–6.05

–5.95

–6.00

–5.85

–5.85

–5.85

–5.85

–5.75

–5.65

–5.75

–5.70

dB

3

3, 4

3

3, 4

Variation with frequency

300 Hz to 3400 Hz

Relative to 1 kHz

0

°C to +70°C

–40

°C to +85°C

–0.10

–0.15

+0.10

+0.15

—

—

3, 4

3, 4

Gain tracking

+7 dBm to –55 dBm, ref 0 dBm

0

°C to +70°C

–40

°C to +85°C

–0.10

–0.15

+0.10

+0.15

—

—

4

Group delay

f = 1 kHz

5.3

4, 15

Total Harmonic Distortion (2- to 4-Wire or 4- to 2-Wire, See Test Circuits A and B)

Total harmonic distortion

0 dBm, 300 Hz to 3.4 kHz

+9 dBm, 300 Hz to 3.4 kHz

–64

–55

–50

–40

dB

Total harmonic distortion with

metering

–35

4, 10

Idle Channel Noise

C-message weighted noise

2-wire,

0

°C to +70°C

2-wire,

0

°C to +70°C

–1*

2-wire,

–40

°C to +85°C

+7

+7

+7

+15

+12

+15

dBrnC

—

—

4

4-wire,

0

°C to +70°C

4-wire,

0

°C to +70°C

–1*

4-wire,

–40

°C to +85°C

+7

+7

+7

+15

+12

+15

—

—

4

Psophometric weighted noise

2-wire,

0

°C to +70°C

2-wire,

0

°C to +70°C

–1*

2-wire,

–40

°C to +85°C

–83

–83

–83

–75

–78

–75

dBmp

7

—

4, 7

4-wire,

0

°C to +70°C

4-wire,

0

°C to +70°C

–1*

4-wire,

–40

°C to +85°C

–83

–83

–83

–75

–78

–75

7

—

4, 7

Psophometric idle channel noise

with metering

2-wire

–46

4, 11

4-wire

–52

Signal 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

DC Feed Currents (See Figure 1a, 1b, 1c) Battery = –48 V

Active state loop-current accuracy

–7.5

+7.5

%

OHT state

18

20

22

Tip Open state

1.0

mA

Open Circuit state

1.0

A and B shorted to GND

130

mA

ELECTRICAL CHARACTERISTICS (continued)

Description

Test Conditions (See Note 1)

Min

Typ

Max

Unit

Note