TDA8421 datasheet(11/26 Pages) PHILIPS

11 / 26 page

May 1988

Philips Semiconductors

Product speciﬁcation

Hi-ﬁ stereo audio processor; I2C bus

TDA8421

DC CHARACTERISTICS

VCC = 12 V; Tamb =25 °C; unless otherwise speciﬁed

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage (pin 4)

VCC

7,5

Supply current

at VCC = 12 V

ICC

−

Internal input voltage

IN1 L,R (pins 26,28) IN2 L,R (pins

1,3) DC voltage internally generated;

capacitive coupling recommended

5,4

6,0

6,6

MAD (pin 16)

input voltage HIGH

VIH

3,0

−

VCC

input voltage LOW

VIL

−

1,5

input current HIGH

IIH

−−

1,0

µA

input current LOW

IIL

−

110

µA

SDA; SCL (pins 13 and 14)

input voltage HIGH

VIH

3,0

−

VCC

input voltage LOW

VIL

−0,3

−

1,5

input current HIGH

IIH

−−

1,0

µA

input current LOW

IIL

−

110

µA

Output voltage at

CH1 (pins 11 and 18);

CH2 (pins 7 and 22)

5,4

⁄2 VCC

6,6

pins with external capacitors

pins 6 to 10; 19 to 21; 23 to 25

Vcap.n

−

⁄2 VCC

−

pin 2

Vcap.2

−

VCC−0,1

−

External switch (pin 15)

at IEXSN = 1 mA

Output voltage HIGH

VEXSNH

−−

Output voltage LOW

VEXSNL

−−

0,3

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