UPB1511TB データシートの表示（PDF） - NEC => Renesas Technology

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UPB1511TB

800 MHz INPUT DIVIDE BY 2, 4 PRESCALER IC FOR PORTABLE SYSTEMS

NEC => Renesas Technology 

µPB1511TB

PIN EXPLANATIONS

Pin No.

1

2

3

4

5

6

Symbol

OUT

GND

SW

IN

IN

VCC

Applied

Voltage

(V)



0

H/L

Functions and Explanation

Divided frequency output pin. This pin is designed as emitter follower output. This

pin can output 0.2 VP-P MIN. with 200 Ω load.

This pin should be coupled to load device with capacitor (example: 1 000 pF) for

DC cut.

Ground pin. Ground pattern on the board should be formed as widely as possible

to minimize ground impedance.

Divide ratio control pin. Divide ratio can be determined by following applied level

to these pins.

Divide ratio

SW

H

L

1/2

1/4





2.4 to 3.3

These pins must be each equipped with bypass capacitor to minimize their

impedance.

Signal input pin. This pin should be coupled to signal source with capacitor

(example: 1 000 pF) for DC cut.

Signal input bypass pin. This pin must be equipped with bypass capacitor

(example: 1 000 pF) to minimize ground impedance.

Power supply pin. This pin must be equipped with bypass capacitor (example:

1 000 pF) to minimize ground impedance.

4

Preliminary Data Sheet P14731EJ1V0DS00

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