ST952 데이터 시트보기 (PDF) - STMicroelectronics

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ST952

D.A.A. LINE INTERFACE

STMicroelectronics 

ST952

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

Symbol

Parameter

Value

Unit

VMLINE

Toper

Tstg

Positive Line Voltage Continuous

Operating Temperature

Storage Temperature

14

V

0, +70

°C

-55, +150

°C

THERMAL DATA

Symbol

Rth (j-a)

Parameter

Junction-ambient Thermal Resistance

Max.

Value

80

Unit

oC/W

ELECTRICAL CHARACTERISTICS (Tamb = 25oC, unless otherwise specified)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

DC AND AC TERMINATION (see Figure 3)

VLINE Line Voltage

ZLOSS Return Loss

IL = 20mA

IL = 120mA

IL = 20mA, VLAC = -6dBV

f = 200 to 4000Hz

4.1

V

10.5

V

dB

24

dB

RECEIVE PATH (IL = 20mA, f = 1kHz, see Figure 4)

Grx

Grf

Rxhd

Receive Gain

Receive Frequency Response

Receive 2nd/3th/4th Harmonic Distortion

VLAC = 0dBV, VTAC = 0

VLAC = 0dBV, VTAC = 0

f = 200 to 3400Hz

f = 50 to 200Hz

VLAC = 0dBV, VTAC = 0

f = 150Hz

f = 1000Hz

-0.5 0 0.5 dB

-0.1

+0.1 dB

-0.5

+0.5 dB

-79

dBV

-82

dBV

Thl Trans-Hybrid Loss

Rn Receive Noise Floor

VLAC = 0, VTAC = -6dBV,

Fmod = 1.5MHz

VLAC = VTAC = 0,

f = 200-3400Hz, 100Hz BW

30 35

dB

-93

dBV

TRANSMIT PATH (IL = 20mA, f = 1kHz, VLAC = 0, see Figure 4)

Gtx

Gtf

Txhd

Txmax

Tn

Transmit Gain

Transmit Frequency Response

Transmit 2nd/3th/4th Harmonic Distortion

Max Line Drive Voltage

Transmit Noise Floor

VTAC = -6dBV

VTAC = -6dBV, f = 200 to 4000Hz

VTAC = -6dBV, Fmod = 1.5MHz

VTAC = 0,

f = 200-3400Hz, 100Hz BW

-0.5 0 0.5 dB

-0.2

+0.2 dB

-82

dBV

3

VPP

-93

dBv

POWER AND DC LOGIC INPUT (see Figure 5)

ILINE

VOFH

Line Current

Hook Switch Input

VCLID CLID Input

ST952 Line Pin + Ic(Q5)

D5 and D6 Input

Active (Off-hook)

Inactive (On-hook)

D5 Input

Active (CLID On)

Inactive (On-hook)

10

120 mA

2.7

5.25 V

0.8 V

2.7

5.25 V

0.8 V

CALLER ID RECEIVE PATH (see Figure 6)

GRID

ILID

CLID Receive Gain

CLID Line Current

VTAC = -15dBV

-1 0 +1 dB

1 mA

RING INDICATOR (see Figure 7)

VRIOF

VRION

D3 & D4 Ring indicator

D3 = D4 = 0

D3 = D4 = 3VPP

8V

18

V

Note : D3 and D4 are complementary outputs.

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