HEF4521B datasheet(10/11 Pages) PHILIPS

Part #	HEF4521B

Description	24-stage frequency divider and oscillator

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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10 / 11 page

January 1995

10

Philips Semiconductors

Product speciﬁcation

24-stage frequency divider and oscillator

HEF4521B

MSI

Fig.9

Test set-up for measuring forward transconductance gfs =dio/dvi at vo is constant (see also graph Fig.10).

Fig.10 Typical forward transconductance gfs as a function of the supply voltage at Tamb =25 °C.

A: average,

B: average + 2 s,

C: average

− 2 s, in which: ‘s’ is the observed standard deviation.

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