TEA1083A datasheet(11/20 Pages) PHILIPS

No de pièce	TEA1083A

Description	Call progress monitor for line powered telephone sets

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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11 / 20 page

March 1994

11

Philips Semiconductors

Product speciﬁcation

Call progress monitor for line powered

telephone sets

TEA1083; TEA1083A

Notes to ﬁgure 10

1. ISUP =IIN − ITR

2.

3.

4. The pin numbers in parenthesis refer to the TEA1083A/AT

5. LSE has to be HIGH to measure the voltage gain

6. PD has to be HIGH to measure in PD conditions

7. The pins not shown in the TEA1060 are left open-circuit

8. An impedance in series with pin SUP (e.g. an ammeter) should

be avoided as it interferes with the values of ITR and ISUP.

LSE input

VIL

LOW level input voltage

0

−

0.3

V

VIH

HIGH level input voltage

1.5

−

VBB

V

II

Input current

LSE = HIGH

−

510

µA

∆G

Reduction of gain from LSI1/LSI2

to QLS

LSE = LOW

60

80

−

dB

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Fig.10 Test circuit.

handbook, full pagewidth

MGR054

TEA1060

VCC

VLSI

LN

VEE

SLPE

REG

STAB

MIC

+

GAS1

MIC

−

7

2

GAS2

3

QR

+

5

GAR

6

8

C3

4.7

µF

C21

220

µF

C20

470

µF

C1

100

µF

R5

3.6

k

Ω

RLS

50

Ω

R1

620

Ω

R20

150

Ω

R9

20

Ω

16

9

10

1

15

TEA1083

(TEA1083A)

VBB

SREF

VSS

LSE

QLS

7 (15)

(13) 6

PD

(12)

LSI1

(8) 4

LSI2

(9) 5

1 (1)

8 (16)

3 (4)

SUP

2 (2)

18

ITR

Iin

Iline

ICC

A

VSUP

VSUP − VSREF

ISUP

IBB

VO

VBB

G

v

20 log

V

o

V

LSI

-----------

=

I

TR

V

SUP

SREF

–

R20

-------------------------------

=

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