NEC UPC2708TB-E3, UPC2708TB, UPC2708T-E3, UPC2708T Datasheet

DATA SHEET

BIPOLAR ANALOG INTEGRATED CI RCUIT

µµµµ

PC2708TB

5 V, SUPER MINIMOLD SILICON MMIC

MEDIUM OUTPUT POWER AMPLIFIER

DESCRIPTION

The µPC2708TB is a silicon monolithic integrated circuit designed as buffer amplifier for BS/CS tuners. This IC is

packaged in super minimold package which is smaller than conventional minimold.

The µPC2708TB has compatible pin connections and performance to µPC2708T of conventional minimold

version. So, in the case of reducing your system size, µPC2708TB is suitable to replace from µPC2708T.

This IC is manufactured using NEC’s 20 GHz fT NESATTM lll silicon bipolar process. This process uses silicon
nitride passivation film and gold electrodes. These materials can protect chip surface from external pollution and
prevent corrosion/migration. Thus, this IC has excellent performance, uniformity and reliability.

FEATURES

• High-density surface mounting : 6-pin super minimold package

• Wideband response : f

• Medium output power : P

• Supply voltage : V

• Power gain : G

• Port impedance : input/output 50

u

= 2.9 GHz TYP. @ 3 dB bandwidth

O(sat)

= +10 dBm TYP. @ f = 1 GHz with external inductor

CC

= 4.5 to 5.5 V

P

= 15 dB TYP. @ f = 1 GHz

Ω

APPLICATION

• 1st IF amplifiers in BS/CS converters, etc.

• 1st IF stage buffer in BS/CS tuners, etc.

ORDERING INFORMATION

Part Number Package Marking Supplying Form

µ

PC2708TB-E3 6-pin super minimold C1D Embossed tape 8 mm wide.

1, 2, 3 pins face to perforat i on side of the tape.
Qty 3 kp/reel.

Remark

To order evaluation samples, please contact your local NEC sales office. (Part number for sample order:

PC2708TB)

µ

The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.

Document No. P13442EJ2V0DS00 (2nd edition)
Date Published May 1999 N CP(K)
Printed in Japan

Caution Electro-static sensitive devices

The mark shows major revised points.

1998, 1999©

PIN CONNECTIONS

(Top View) (Bottom View)

3

µµµµ

PC2708TB

Pin No. Pin Name

1 INPUT

4

4

3

2GND

2

1

PRODUCT LINE-UP (TA = +25°C, VCC = V

Part No.

PC2708T 6-pin minimold

µ

PC2708TB

µ

Remark

Notice

Typical performance. Please refer to

The package size distinguishes between minimold and super minimold.

f

(GHz)

2.9 +10.0 15 6.5 26

C1D

u

5

6

O(sat)

P

(dBm)

5

6

out

= 5.0 V, ZL = ZS = 50

P

G

(dB)

2

1

ΩΩΩΩ

NF

(dB)

ELECTRICAL CHARACTERISTICS

)

CC

I

(mA)

6-pin super minimold

in detail.

3GND
4OUTPUT
5GND
6V

Package Marking

CC

C1D

2

Data Sheet P13442EJ2V0DS00

SYSTEM APPLICATION EXAMPLE

EXAMPLE OF DBS CONVERTERS

µµµµ

PC2708TB

BS Antenna
(DBS ODU)

Parabola

Antenna

EXAMPLE OF 2.4 GHz BAND RECIEVER

RX

SW

Oscillator

PLL

PC2711TB

µ
µ

PC2712TB

IF Amp.RF Amp. Mixer

PC2708T/TB

µ

PLL

DEMO

To IDU

I

Q

Driver

TX

PA

PC2708T/TB

µ

To know the associated products, please refer to each latest data sheet.

I

0°

φ

90°

Q

Data Sheet P13442EJ2V0DS00

3

PIN EXPLANATION

µµµµ

PC2708TB

Pin
No.

Pin Name

Applied
Voltage (V)

Pin
Voltage

Note

(V)

Function and Applications Internal Equivalent Circ ui t

1 INPUT – 1.16 Signal input pin. A i nternal

matching circuit, configured with
resistors, enables 50

Ω

connection over a wide band.
A multi-feedback ci rcuit is
designed to cancel the

FE

deviations of h

and resistance.
This pin must be coupled to
signal source with capac i t or for
DC cut.

4 OUTPUT Voltage

as same

CC

as V
through
external

– Signal output pin. The induct or

must be attached between V
and output pins to supply
current to the internal output
transistors.

inductor

6VCC4.5 to 5.5 – Power supply pin, whi ch biases

the internal input transis tor.
This pin should be externally
equipped with bypass capaci t or
to minimize its i m pedance.

2
3
5

GND 0 – Ground pin. This pin should be

connected to system ground
with minimum inductanc e.
Ground pattern on the board
should be formed as wide as
possible.
All the ground pins must be
connected together with wide
ground pattern to decrease
impedance difference.

6

V

CC

4

CC

1

IN

23 5

GNDGND

OUT

Pin voltage is measured at V

Note

4

CC

= 5.0 V

Data Sheet P13442EJ2V0DS00

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Conditions Ratings Unit

µµµµ

PC2708TB

Supply Voltage V
Total Circuit Current I
Power Dissipation P

Operating Ambient Temperature T
Storage Temperature T
Input Power P

CC

CC

stg

TA = +25 °C, Pin 4 and 6 6 V
TA = +25 °C 60 mA

D

Mounted on doublesided copper clad

A

50 × 50 × 1.6 mm epoxy glass PWB (T

A

in

TA = +25 °C +10 dBm

= +85 °C)

200 mW

40 to +85 °C

−

55 to +150 °C

−

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol MIN. TYP. MAX. Unit Remark

O(sat)

∆

CC

A

CC

P

u

in

out

P

G

4.5 5.0 5.5 V The same v ol tage should be applied
to pin 4 and 6.

40 +25 +85 °C

−

C, VCC = V

°°°°

out

= 5.0 V, ZS = ZL = 50

)

ΩΩΩΩ

No Signal 20 26 33 mA
f = 1 GHz 13.0 15. 0 18.5 dB
f = 1 GHz, Pin = 0 dBm +7.5 +10.0 – dBm

3 dB down below flat gain at

2.7 2.9 – GHz

f = 0.1 GHz

f = 1 GHz 8 11 – dB
f = 1 GHz 16 20 – dB
f = 0.1 to 2.6 GHz – ±0.8 – dB

Supply Voltage V

Operating Ambient Temperature T

ELECTRICAL CHARACTERISTICS (TA = +25

Parameter Symbol Test Conditions MIN. TYP. MAX . Unit
Circuit Current I
Power Gain G
Maximum Output Level P
Noise Figure NF f = 1 GHz – 6.5 8.0 dB
Upper Limit Operating Frequency f

Isolation ISL f = 1 GHz 18 23 – dB
Input Return Loss RL
Output Return Loss RL
Gain Flatness

Data Sheet P13442EJ2V0DS00

5