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Uzp buffer, Ata6264 [preliminary – Atmel ATA6264 User Manual

Page 65

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65

4929B–AUTO–01/07

ATA6264 [Preliminary]

20. UZP Buffer

The pin UZP is an analog output pin of the ATA6264. The UZP buffer is realized as a tristate out-
put with the ability to drive to VPERI as well as to GNDA. The selected measurement result is
given to the pin UZP as long as no new measurement is selected or the tristate command has
been sent. Driver capability is typically 4 mA.

Figure 20-1. Functional Principle of the UZP Buffer

Necessary for operation:
V

PERI

> Reset threshold, V

CP

= 10V to 50V, V

VINT

= 3.7V to 5.47V

Operating conditions of all other supply pins:
V

K30

, V

EVZ

, V

VSAT

and V

VCORE

are within functional range limits, T

J

= –40°C to +150°C

Other pins:
As defined in

Section 4. ”Functional Range” on page 8

.

Driver

circuitry

Tristate / normal

operating

Voltage selected

voltage from

AMUX

Driver

circuitry

GNDA

470 to 2000

1 to 47 nF

UZP

2 to 8 mA

2 to 8 mA

V

VPERI