ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

AC OPERATION (continued)

Grl

Receiving Gain Linearity

fr = 1020Hz, Vriref = – 10dBm

Vri = + 4 /– 40dBm

– 0.1

+ 0.1

dB

Np4W

Psophometric Noise at 4W-Tx

Terminals

– 75

– 70

dBmp

Np2W

Psophometric Noise at Line Terminals

– 75

– 70

dBmp

SVRR

Supply Voltage Rejection Ratio

Relative to VB–

f = 3400Hz

– 30

dB

SVRR

f = 3400Hz

Vs = 100mVrms

– 30

– 26

dB

SVRR

– 32

– 30

dB

Ltc

Longitudinal to Transversal Conversion

f = 300 to 3400Hz

Iline = 30mA, ZML = 600

Ω

49 (1)

60

dB

Tlc

Transversal to Longitudinal Conversion

48

51

dB

Td

Propagation Time

Both Direction

40

µs

Tdd

Propag. Time Distortion

25

µs

Vttx

Line Voltage of Teletaxe Signal

Note 2

Note 3

1.7

4.5

2.3

5.5

V

V

THD

Teletaxe Signal Harmonic

Dist. ttx Filt = 0

Ω @ 16kHz

Note 4

5%

Zitt

Teletaxe Amplif. Input Impedance

Pin 33 of L3030

100

k

Ω

AC OPERATION BOOST BATTERY

Gs

Sending Gain

Vso = 0dBm f = 1020Hz

Norm. Polarity

– 0.66 – 0.16 + 0.34

dB

Gr

Receiving Gain

Vri = 0dBm f = 1020Hz

Norm. Polarity

– 0.27 + 0.08 + 0.43

dB

Np4W

Psophometric Noise at 4W-Tx

Terminals

– 73

– 68

dBmp

Np2W

Psophometric Noise at line Terminals

– 73

– 68

dB

SVRR

Relative to Vdd

f = 3400Hz

Vs = 100mVrms

–23

dB

SVRR

Relative to Vss

–23

dB

RINGING PHASE

Vlr

Superimposed DC Voltage

Rloop > 100k

Ω

Rloop = 1k

Ω

19

17

23

21

27

25

V

V

Vacr

Ringing Signal at Line Termin.

Rloop = 1k

Ω/1µF

56

Vrms

If

DC Off-hook Det. Threshold

1.5

3.5

mA

Ilim

Current Limit.

85

130

mA

Vrs

Ringing Simmetry

2

Vrms

THDr

Ringing Signal Distortion

5%

No tes : 1. Up to 52dB using selected L3000S.

2. The configurat io n of data sent t o devi ce change, every 100mS, from - 1100X010 - to - 1000X010 -

3. The configurat io n of data sent t o devi ce change, every 100mS, from - 1101X010 - to - 1001X010 -

4. Error generated by t tx fil t

≠ 0 ohm, on the output teletax amplitude is err% = 100 x (1 + A) x B/C where A = 10

Kohm/R GTT X[ Kohm], B = TT XF ILT[Kohm], C = ( TTXF ILT[Kohm] + 1 Kohm), for example 10 ohm means err% = 2 %.

L3000S - L3030

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