TA8155FNG Просмотр технического описания (PDF) - Toshiba

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TA8155FNG

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic

Toshiba 

(4) Microphone amplifier

Current source of 5.5µA is operated except MIC−REC

mode, because bias is applied to the same output

voltage as output voltage of microphone amplifier

in operation (Fig.3).

(5) VCC (REC)

The VCC (REC) terminal (pin(1)) is applied bias to

VCC (REC) = VCC−0.7V, because the VCC (REC)

terminal (pin(1)) is connected with the VCC terminal

(pin(23)) by diode, as internal circuit of termial

explanation.

And supply current doesn't flow through VCC (REC)

terminal (pin(1)), in case that the terminal is

connectd with VCC line, even though this IC is

on−mode and except REC mode.

TA8155FG/FNG

Fig.2 Reducing a pop sound of

mode switchover (1).

Absolute Maximum Ratings (Ta = 25°C)

Fig.3 Reducing a pop sound of

mode switchover (2).

Characteristic

Symbol

Rating

Unit

Supply voltage

VCC

4.5

V

VCC (REC)

4.5

TA8155FG

400

Power dissipation

PD (Note)

mW

TA8155FNG

500

Operating Temperature

Storage temperature

Topr

−25~75

°C

Tstg

−55~150

°C

(Note) Derated above Ta = 25°C in the proportion of 3.2mW / °C for TA8155FG, and of 4mW / °C for

TA8155FNG.

6

2006-04-12

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