TEA1098AH Просмотр технического описания (PDF) - Philips Electronics

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TEA1098AH

Speech and handsfree IC

Philips Electronics 

Philips Semiconductors

Speech and handsfree IC

Preliminary specification

TEA1098A

8

handbook, full pagewidth

Voltages

(V)

6

4

2

MGL439

LN

SLPE

VBB

VDD

MICS

0

0.00

0.01

0.02

0.03

0.04

0.05

0.06

0.07

Line current (A)

Fig.5 Main DC voltages.

VDD SUPPLY FOR MICROCONTROLLER (PIN VDD)

The voltage on the VDD supply point follows the voltage on VBB with a difference typically equal to 250 mV and is internally

limited to 3.35 V. This voltage is temperature compensated. This supply point can provide a current up to 3 mA typically.

Its internal consumption stays low (a few 10 nA) as long as VDD does not exceed 1.5 V.

VDD can also be used as an input; in this case the voltage will be stabilised to 3.35 V up to 75 mA input current.

VBB and VDD can supply external circuits in the limit of currents provided from the line, taking into account the internal

current consumption.

2000 Mar 21

9

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