MC33121 Просмотр технического описания (PDF) - Motorola => Freescale

Номер в каталоге

Компоненты Описание

производитель

MC33121

Low Voltage Subscriber / Loop Interface Circuit (SLIC)

Motorola => Freescale 

ELECTRICAL CHARACTERISTICS

(VEE = – 24 V, VDD = + 5.0 V, unless otherwise noted. VCC = VAG = VDG = 0 V, TA = 25°C, see Figure 1.)

Characteristic

Symbol

Min

Typ

LOGIC INTERFACE

ST1 Output Voltage

Low (IST1 = 1.0 mA, VDD = 5.5 V)

High (IST1 = – 100 µA, VDD = 4.5 V)

VOL

VDG

0.17

VOH

2.4

3.2

ST2 Output Voltage

Low (IST2 = 1.0 mA, VDD = 5.5 V)

High (IST2 = – 100 µA, VDD = 4.5 V)

Time Delay

Hookswitch Closure to ST1 Change

Hookswitch Opening to ST1 Change

VOL

VDG

0.17

VOH

2.4

4.3

tST11

—

10

tST12

—

200

Hookswitch Closure to 90% of Loop Current (CT = 0.1 µF)

PDI Taken High–to–Low to 10% of Loop Current

PDI Taken Low–to–High to 90% of Loop Current

tHS

—

19

tST21

—

18

tST22

—

10

PDI Input Current

VPDI = 3.0 V, RL = 367 Ω, VDD = 5.0 V

VPDI = 0 V, RL = 367 Ω, VDD = 5.5 V

PDI Input Voltage

Low

High

IIH

– 1250

– 800

—

– 800

VIL

VDG

—

VIH

2.0

—

MISCELLANEOUS

VQB Voltage (VQB – VEE)

@ IL = 20 mA

@ IL = 40 mA

TXO Offset Voltage (VTXO – VAG) @ RL = 600 Ω

TXO Output Current

RXI Offset Voltage (VRXI – VAG) @ RL = 600 Ω

VAG Input Current @ RL = 600 Ω

Idle Channel Noise (with C–message filter, RL = 600 Ω)

@ TXO (Pin 11)

@ Tip/Ring

Thermal Resistance — Junction to Ambient

(Either package, in still air, soldered to a PC board)

(@ TA = + 25°C)

(@ TA = + 85°C)

VQB

VTXO

ITXO

VRXOS

IVAG

NIC4

NIC2

θJA

—

—

– 400

± 275

—

—

—

—

—

—

0.82

0.95

+ 30

± 800

0.8

0.2

– 10

– 5.0

62

36

Max

Unit

Vdc

0.4

—

0.4

—

µs

—

—

—

ms

—

ms

—

µs

µA

– 300

—

Vdc

0.8

VDD

—

—

+ 400

—

—

—

—

—

—

—

Vdc

mVdc

µA pk

mVdc

µA

dBrnc

°C/W

MC33121

4

MOTOROLA

Share Link: