SLIC Products

7

ELECTRICAL CHARACTERISTICS

Description

Test Conditions (See Note 1)

Min

Typ

Max

Unit

Note

Transmission Performance

2-wire return loss

200 Hz to 3.4 kHz (Test Circuit D)

26

dB

1, 4, 6

3

20

Ω

4

–50

+50

mV

1

20

Ω

4

Overload level, 2-wire and 4-wire, off hook

Active state

2.5

Vpk

2a

Overload level, 2-wire

0.88

Vrms

2b

THD (Total Harmonic Distortion)

+3 dBm, BAT2 = –24 V

–64

–50

dB

5

THD, on hook, OHT state

BAT1 = –67 V

–40

Longitudinal Performance (See Test Circuit C)

Longitudinal to metallic L-T, L-4 balance

200 Hz to 3.4 kHz

40

dB

Longitudinal signal generation 4-L

200 Hz to 800 Hz, Normal polarity

40

Longitudinal current per pin (A or B)

Active or OHT state

12

28

mArms

4

Longitudinal impedance at A or B

25

Ω/pin

Idle Channel Noise

C-message weighted noise

+7

+14

dBrnC

Psophometric weighted noise

–83

–76

dBmp

4

Insertion Loss and Four- to Four-Wire Balance Return Signal (See Test Circuits A and B)

Gain accuracy

4- to 2-wire

0 dBm, 1 kHz

–0.20

0

+0.20

dB

3

Gain accuracy

2- to 4-wire and

4- to 4-wire

0 dBm, 1 kHz

–6.22

–6.02

–5.82

Gain accuracy

4- to 2-wire

OHT state, on hook

–0.35

0

+0.35

Gain accuracy

2- to 4-wire and

4- to 4-wire

OHT state, on hook

–6.37

–6.02

–5.77

Gain accuracy over frequency

300 to 3400 Hz

relative to 1 kHz

–0.10

+0.10

Gain tracking

+3 dBm to –55 dBm

relative to 0 dBm

–0.10

+0.10

3, 4

Gain tracking

OHT state, on hook

0 dBm to –37 dBm

+3 dBm to 0 dBm

–0.10

–0.35

+0.10

+0.35

3, 4

3

Group delay

0 dBm, 1 kHz

3

µs

1, 4, 6