U4090B-FN datasheet(19/34 Pages) TEMIC

Part #	U4090B-FN

Description	Monolithic Integrated Feature Phone Circuit

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Manufacturer	TEMIC [TEMIC Semiconductors]

Direct Link	http://www.temic.de

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19 / 34 page

U4090B

Preliminary Information

TELEFUNKEN Semiconductors

Rev. C1, 28-Oct-96

19 (34)

Parameters

Test Conditions / Pin

Symbol

Min

Typ

Max

Unit

Figure

MUTR Input

MUTR input current

VMUTR = GND

IL > 14 mA

VMUTR = VMP

IMUTE

–20

+10

–30

mA

32

MUTR input voltage

Mute low; IL >

14 mA

VMUTE

0.3

V

32

MUTR input voltage

Mute high;

IL > 14 mA

VMUTE

VMP-0.3

V

32

PD Input

PD input current

PD active, IL >

14 mA VPD = VMP

Ipd

9

uA

32

Input voltage

PD = active

PD = inactive

Vpd

2

0.3

V

32

Voltage drop at VL

IL = 14 mA,

PD = active

IL = 100 mA,

PD = active

VL

1.5

1.9

V

32

Input characteristics of IMPSEL

Input current

IL

w 14 mA

VIMPSEL = VMP

VIMPSEL = GND

IIMPSEL

18

–18

mA

32

Input voltage

Input high

VIMPSEL

VMP-0.3

V

32

Input voltage

Input low

VIMPSEL

0.3

V

32

MUTX input

Input current

VMUTX = VMP

VMUTX = GND

IMUTX

20

–20

30

–30

mA

32

Input voltage

Input high

VMUTX

VMP-0.3

V

32

Input voltage

Input low

VMUTX

0.3

V

32

Line detection

Line current for LIDET

active

PD = inactive

ILON

12.6

mA

26

Line current for LIDET

inactive

PD = inactive

ILOFF

11.0

mA

26

Current threshold during

power down

VB = 5 V, PD = ac-

tive

ILONPD

0.8

1.6

2.4

mA

26

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