6

Am79514 Data Sheet

ELECTRICAL CHARACTERISTICS

Description

Test Conditions (See Note 1)

Min

Typ

Max

Unit

Note

3

20

W

0

°C to +70°C

–40

°C to +85°C

–35

–40

+35

+40

mV

—

4

Analog (RSN) input impedance

300 Hz to 3.4 kHz

1

20

W

Longitudinal impedance

at A or B

35

Overload level

4-wire

2-wire

–3.1

–3.1

+3.1

+3.1

Vpk

2

—

Transmission Performance, 2-Wire Impedance

2-wire return loss

(See Test Circuit D)

300 Hz to 500 Hz

500 Hz to 2500 Hz

2500 Hz to 3400 Hz

26

26

20

dB

4

—

—

Longitudinal Balance (2-Wire and 4-Wire, See Test Circuit C)

Longitudinal to

metallic L-T, L-4

200 Hz to 1 kHz:

–1*

normal polarity

0

°C to +70°C

–2

normal polarity

–40

°C to+85°C

–2

reverse polarity

–2

50

63

58

58

dB

5

1 kHz to 3.4 kHz:

–1*

normal polarity

0

°C to +70°C

–2

normal polarity

–40

°C to +85°C

–2

reverse polarity

–2

52

58

54

54

Longitudinal sum (L-T) + (T-L)

300 to 3400 Hz

95

Longitudinal signal generation

4-L or T-L

300 to 800 Hz

800 to 3400 Hz

40

35

Longitudinal current capability

per wire

Active state

OHT state

17

8

mArms

Insertion Loss (2- to 4-Wire and 4- to 2-Wire, See Test Circuits A and 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

–0.15

–0.20

–0.1

–0.15

+0.15

+0.20

+0.1

+0.15

dB

4

4

Variation with frequency

300 Hz to 3400 Hz

Relative to 1 kHz

0

°C to +70°C

–40

°C to +85°C

–0.1

–0.15

+0.1

+0.15

4

Gain tracking

+7 dBm to –55 dBm

0

°C to +70°C

–40

°C to +85°C

–0.1

–0.15

+0.1

+0.15

Note:

* P.G. = Performance Grade