Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

DC AND AC TERMINATION (see Figure 3)

Line Voltage

4.1

10.5

V

V

ZLOSS

Return Loss

f = 200 to 4000Hz

24

dB

dB

Grx

Receive Gain

-0.5

0

0.5

dB

Grf

Receive Frequency Response

f = 200 to 3400Hz

f = 50 to 200Hz

-0.1

-0.5

+0.1

+0.5

dB

dB

Rxhd

Receive 2nd/3th/4th Harmonic Distortion

f = 150Hz

f = 1000Hz

-79

-82

dBV

dBV

Thl

Trans-Hybrid Loss

Fmod = 1.5MHz

30

35

dB

Rn

Receive Noise Floor

f = 200-3400Hz, 100Hz BW

-93

dBV

Gtx

Transmit Gain

-0.5

0

0.5

dB

Gtf

Transmit Frequency Response

-0.2

+0.2

dB

Txhd

Transmit 2nd/3th/4th Harmonic Distortion

-82

dBV

Txmax

Max Line Drive Voltage

3

Tn

Transmit Noise Floor

f = 200-3400Hz, 100Hz BW

-93

dBv

POWER AND DC LOGIC INPUT (see Figure 5)

Line Current

ST952 Line Pin + Ic(Q5)

10

120

mA

Hook Switch Input

D5 and D6 Input

Active (Off-hook)

Inactive (On-hook)

2.7

5.25

0.8

V

V

CLID Input

D5 Input

Active (CLID On)

Inactive (On-hook)

2.7

5.25

0.8

V

V

CALLER ID RECEIVE PATH (see Figure 6)

CLID Receive Gain

-1

0

+1

dB

CLID Line Current

1mA

RING INDICATOR (see Figure 7)

D3 & D4 Ring indicator

D3 = D4 = 0

D3 = D4 = 3VPP

18

8V

V

Note : D3 and D4 are complementary outputs.

ABSOLUTE MAXIMUM RATING (AGND = DGND = 0V, all voltages with respect to 0V)

Symbol

Parameter

Value

Unit

Positive Line Voltage Continuous

14

V

Operating Temperature

0, +70

°C

Tstg

Storage Temperature

-55, +150

°C

THERMAL DATA

Symbol

Parameter

Value

Unit

Junction-ambient Thermal Resistance

Max.

80

ST952

5/12