UPC2757TB Просмотр технического описания (PDF) - NEC => Renesas Technology

Номер в каталоге

Компоненты Описание

производитель

UPC2757TB

SILICON MMIC 1st FREQUENCY DOWN-CONVERTER FOR CELLULAR/CORDLESS TELEPHONE

NEC => Renesas Technology 

µPC2757TB, µPC2758TB

PIN EXPLANATION (Both µPC2757TB, 2758TB)

Pin Pin

No. Name

1

RFinput

Applied

Voltage (V)

−

Pin Voltage

(V)Note

1.2

Function and Application

Internal Equivalent Circuit

This pin is RF input for mixer

designed as double balance type.

This circuit contributes to suppress

spurious signal with minimum LO

and bias power consumption.

Also this symmetrical circuit can

keep specified performance insensi-

tive to process-condition

distribution.

From

LO

VCC

To IF

Amp.

1

2

GND

GND

3

LOinput

–

–

This pin is ground of IC.

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.)

1.3

This pin is LO input for local buffer

designed as differential amplifier.

Recommendable input level is –15

to 0 dBm. Also this symmetrical

3

circuit can keep specified

performance insensitive to process-

condition distribution.

−

VCC

Mixer

4

PS

VCC or GND

5

VCC

2.7 to 3.3

6

IFoutput

–

–

This pin is for power-save function.

This pin can control ON/OFF

operation with bias as follows;

Bias: V Operation

VPS

≥ 2.5

ON

0 to 0.5

OFF

Rise time/fall time using this pin are

approximately 10 µs.

–

Supply voltage 3.0 ±0.3 V for

operation. Must be connected

bypass capacitor. (example: 1 000

pF) to minimize ground impedance.

1.7

This pin is output from IF buffer

amplifier designed as single-ended

push-pull type. This pin is assigned

for emitter follower output with low-

impedance. In the case of

connecting to high-impedance

stage, please attach external

matching circuit.

Note Each pin voltage is measured with VCC = 3.0 V

4

Data Sheet P12771EJ2V0DS00

VCC

4

−

VCC

6

Share Link: