UPC8100 datasheet(4/16 Pages) NEC

4 / 16 page

µPC8100GR

Data Sheet P10817EJ3V0DS00

Mixer output from upconverter.

10 and 11 pins should be externally

equipped with tank circuit of inductor (eg

4.7 nH) and capacitor (eg 3.5 pF).

Ground for oscillator buffer amplifier and

mixer of upconverter.

Must be connected to the system ground

with minimum inductance. Ground

pattern on the board should be formed

as wide as possible.

(Track length should be kept as short as

possible.)

Bypass of IF input for upconverter.

This pin is IF input for upconverter

designed as double balanced mixer.

This high-impedance input should be

externally equipped with matching circuit

of inductor (eg 220 nH) and capacitor

(eg 1.5 pF).

Local oscillator input for upconverter. Re-

quired for matching with register 51

Ω.

Bypass of local oscillator input for

upconverter.

Bypass of local oscillator input for

downconverter.

Local oscillator input for down-

converter. Required for matching with

Ω.

Supply voltage for downconverter.

It must be connected bypass capacitor

(e.g 1 000 pF) to minimize ground

impedance.

IF output from downconverter.

PIN EXPLANATION

ASSIGNMENT

PIN VOLTAGE

FUNCTION AND APPLICATION

EQUIVALENT CIRCUIT

NO.

(V)

REG.

VCC

MIX OUT 1

2.3

MIX OUT 2

2.3

GND

IF bypass

1.03

IF input

1.03

OSC input

1.8

(for upconverter)

OSC bypass

1.8

(for upconverter)

OSC bypass

1.85

(for down-

converter)

OSC input

1.85

(for down-

converter)

VCC supply for

2.7 to 4.5*

for down-

converter

IF output

1.45

15 ,

16 ,

VCC

* Externally supply voltage

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