1999 May 19

8

Philips Semiconductors

Product specification

Inverter

74AHC1GU04

function of the supply voltage at

handbook, halfpage

0246

40

30

10

0

20

MNA400

VCC (V)

gfs

(mA/V)

APPLICATION INFORMATION

Some applications for the HC1GU04 are:

• Linear amplifier (see Fig.12)

• In crystal oscillator design (see Fig.13).

Note to the application information.

All values given are typical unless otherwise specified.

handbook, halfpage

U04

R1

R2

VCC

ZL

MNA052

1

µF

GND

Fig.12 Used as a linear amplifier.

;

R1

≥ 3kΩ,R2 ≤ 1MΩ.

Typical unity gain bandwidth product is 5 MHz.

C1 see Fig.13.

A

u

A

OL

1

R1

R2

-------- 1A

+

(

+

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

–

=

V

0 max (p-p)

V

CC

1.5 V centered at

1

2

--- V

CC

–

≈

Fig.13 Crystal oscillator configuration.

C1 = 47 pF (typical).

C2 = 22 pF (typical).

R1 = 1 to 10 M

Ω (typical).

R2 optimum value depends on the frequency and required stability

handbook, halfpage

MNA053

U04

out

R2

R1

C1

C2