NEC UPC2792TB-E3, UPC2792TB, UPC2791TB-E3, UPC2791TB Datasheet

DATA SHEET

BIPOLAR ANALOG INTEGRATED CI RCUITS

µµµµ

PC2791TB,

µµµµ

PC2792TB

5 V, SUPER MINIMOLD SILICON MMIC

VHF-UHF WIDEBAND AMPLIFIER

DESCRIPTION

The µPC2791TB and µPC2792TB are silicon monolithic integrated circuits designed as 2nd IF buffer amplifier for
DBS tuners. These ICs are packaged in super minimold package which is smaller than conventional minimold. So,
in the case of reducing your system size, µPC2791TB and µPC2792TB are suitable. Among the 6-pin mini/super­minimold amplifiers, µPC2791TB and µPC2792TB have unique pin locations taken over from conventional 4-pin
minimold µPC1675G, µPC1676G and µPC1688G.

These ICs are manufactured using NEC’s 10GHz fT NESAT™ II AL silicon bipolar process. This process uses
silicon nitride passivation film. The material can protect chip surface from external pollution and prevent
corrosion/migration. Thus, these IC have excellent performance, uniformity and reliability.

FEATURES

• High-density surface mounting : 6-pin super minimold package (2.0 × 1.25 × 0.9 mm)

• Supply voltage : VCC = 4.5 to 5.5 V

• Wideband response :µPC2791TB; fu = 1.9 GHz TYP. @3 dB bandwidth

PC2792TB; fu = 1.2 GHz TYP. @3 dB bandwidth

µ

• Power gain :µPC2791TB; GP = 12 dB TYP. @f = 500 MHz

PC2792TB; GP = 22 dB TYP. @f = 500 MHz

µ

APPLICATION

• 400 MHz band 2nd IF buffer amplifiers in DBS tuners (2nd frequecy converter block), etc.

ORDERING INFORMATION

Part Number Package Marking Supplying Form

µ

PC2791TB-E3 C2S

µ

PC2792TB-E3

Remark

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

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.

6-pin super minimold

PC2791TB, µPC2792TB)

µ

Caution Electro-static sensitive devices

C2T

Embossed tape 8 mm wide.
1, 2, 3 pins face to perforat i on side of the tape.
Qty 3kpcs/reel.

Document No. P11863EJ2V0DS00 (2nd edition)
Date Published February 2000 N CP(K)
Printed in Japan

The mark shows major revised points.

©

1996, 2000

,

PIN CONNECTIONS

µµµµ

PC2791TB

µµµµ

PC2792TB

Caution

(Top View)

3

2

1

4

5

6

C2S

Marking is an example of µPC2791TB

PC2791TB,

µµµµ

PC2792TB pin locations are different from the other 6-pin mini/super-minimold

µµµµ

(Bottom View)

4

5

6

Pin No. Pin Name

3

2

1

1GND
2GND
3OUTPUT
4V
5GND
6 INPUT

amplifiers.

PRODUCT LINE-UP (TA = +25

u

Part Number

PC1675G 1.9 +4.0 12 5.5 17 4-pin minimold C1A

µ

PC2791TB 6-pin super minimold C2S

µ

PC1688G 1.1 +4.0 21 4.0 19 4-pin minimold C1C

µ

PC1676G 1.2 +5.0 22 4.5 19 4-pin minimold C1B

µ

PC2792TB 20 3.5 6-pin super minimold C2T

µ

f

(GHz)

C, VCC = 5.0 V, ZS = ZL = 50

°°°°

o(sat)

P

(dBm)

G

(dB)

P

NF

(dB)

ΩΩΩΩ

)

CC

I

(mA)

Package Marking

CC

Remarks
Caution This document is to specified for

Typical performance. Please refer to ELECTRICAL CHARACTERISTICS in detail.

PC2791TB and

µµµµ

mentioned in this document, the data sheet of each part number should be referred.

SYSTEM APPLICATION EXAMPLE

Example of DBS tuners (2nd frequecy converter block)

1st IF input
from DBS converter

PC2712TB

µ

BPF SAW

PC2711TB

µ

OSC

MIX

PC2791TB

µ

PC2792TB

µ

PC2711TB

µ

LPF

PC2792TB. For the other part numbers

µµµµ

Baseband output

Prescaler

AGC Amp.

PLL Synth.

FM Demo.

2

Data Sheet P11863EJ2V0DS00

,

PIN EXPLANATION

µµµµ

PC2791TB

µµµµ

PC2792TB

Pin
No.

Pin
Name

1

2

5

3OUTPUT

4VCC4.5 to 5.5

6 INPUT

GND 0

Applied
Voltage
(V)





Pin
Voltage

Note

(V)



3.92

3.96



1.11

0.92

Function and Applications Internal Equivalent Circ ui t

PC2791TB

Ground pin. This pin should be
connected to system ground with
minimum inductance. Ground pattern
on the board should be formed as wide
as possible.
All the ground pins must be c onnected
together with wide ground pattern to
decrease impedance differenc e.

Signal output pin. A internal matching
circuit, configured with resistors, enables
50 Ω connection over a wide band.
This pin must be coupled to next stage
with capacitor for DC cut.

Power supply pin. This pin s houl d be
externally equipped with bypas s
capacity to minim i ze ground
impedance.

Signal input pin. A internal matching
circuit, configured with resistors, enables
50 Ω connection over a wide band.
A multi-feedback circuit is designed to
cancel the deviations of h
resistance.
This pin must be coupled to front stage
with capacitor for DC cut.

FE

and

µµµµ

6

IN

2

GND

PC2792TB

µµµµ

6

IN

2

GND

5

5

4

V

CC

3

OUT

GND

1

4

V

CC

3

OUT

1

GND

Pin voltage is measured at V

Note

CC

= 5.0 V. Above: µPC2791TB, Below: µPC2792TB

Data Sheet P11863EJ2V0DS00

3

,

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Conditions Ratings Unit

µµµµ

PC2791TB

µµµµ

PC2792TB

Supply Voltage V
Power Dissipation P

Operating Ambient Temperature T
Storage Temperature T
Input Power P

CC

stg

TA = +25°C6V

D

Mounted on doublesided copper clad
50 × 50 × 1.6 mm epoxy glass P WB (T

A

in

TA = +25°C +10 dBm

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol MIN. TYP. MAX. Unit
Supply Voltage V
Operating Ambient Temperature T

ELECTRICAL CHARACTERISTICS (TA = +25

Parameter Symbol Test Conditions

Circuit Current I
Power Gain G
Noise Figure NF f = 500 MHz
Upper Limit Operating Frequency f

Isolation ISL f = 500 MHz 20 24
Input Return Loss RL
Output Return Loss RL
Saturated Output Power P

CC

A

CC

P

u

out

O(sat)

4.5 5.0 5.5 V
40 +25 +85

−

C, VCC = 5.0 V, ZS = ZL = 50

°°°°

PC2791TB

µ

MIN. TYP. MAX. MIN. TYP. MAX.
No signal 12 17 22 14 19 24 mA
f = 500 MHz 10 12 14 17 20 22 dB



3 dB down from
flat gain

in

f = 500 MHz 9 12
f = 500 MHz 8 11
f = 500 MHz,

in

P

= 0 dBm

1.6 1.9

+2.0 +4.0

A

= +85°C)

ΩΩΩΩ

5.5 7.0








)



1.0 1.2

24 28
12 15

912

+3.0 +5.0

200 mW

40 to +85

−

55 to +150

−

PC2792TB

µ

3.5 6.0 dB








C

°

C

°

C

°

Unit

GHz

dB
dB
dB

dBm

4

Data Sheet P11863EJ2V0DS00

,

TEST CIRCUIT

50

IN OUT

C1 C2

Ω 50 Ω

1 000 pF 1 000 pF

EXAMPLE OF APPLICATION CIRCUIT

V

CC

1 000 pF

3

C

µµµµ

PC2791TB

CC

V

4

36

1, 2, 5

µµµµ

PC2792TB

1 000 pF

C

3

4

C

50 Ω 50 Ω

IN OUT

1

6

1 000 pF 1 000 pF 1 000 pF

3

1, 2, 5

C

4




C

5

6

R

1

50 to 200 Ω

To stabilize operation,
please connect R

1

, C

1 000 pF

C

6

4

3

1, 2, 5



5



2

C

1 000 pF

The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.

CAPACITORS FOR THE VCC, INPUT AND OUTPUT PINS

1 000 pF capacitors are recommendable as bypass capacitor for VCC pin and coupling capacitors for input/output

pins.

Bypass capacitor for VCC pin is intended to minimize VCC pin’s ground impedance. Therefore, stable bias can be

supplied against VCC fluctuation.

Coupling capacitors for input/output pins are intended to minimize RF serial impedance and cut DC.

To get flat gain from 100 MHz up, 1 000 pF capacitors are assembled on the test circuit. [Actually, 1 000 pF
capacitors give flat gain at least 10 MHz. In the case of under 10 MHz operation, increase the value of coupling
capacitor such as 2 200 pF. Because the coupling capacitors are determined by the equation of C = 1/(2 π fZs).]

Data Sheet P11863EJ2V0DS00

5

µµµµ

,

PC2791TB

ILLUSTRATION OF THE TEST CIRCUIT ASSEMBLED ON EVALUATION BOARD

AMP-3

Top View

1

2

3

C2S

6

5

4

Mounting direction
(Marking is an example
for PC2791TB)

µ

IN

C

V

CC

C

C

OUT

µµµµ

PC2792TB

COMPONENT LIST

Value

C 1 000 pF

For more information on the use of this IC, refer to the following application note: USAGE AND APPLICATIONS
OF 6-PIN MINI-MOLD, 6-PIN SUPER MINI-MOLD SILICON HIGH-FREQUENCY WIDEBAND AMPLIFIER MMIC
(P11976E).

Notes

1. 30 × 30 × 0.4 mm double sided copper clad polyimide board.

2. Back side : GND pattern

3. Solder plated on pattern

4.

: Through holes

6

Data Sheet P11863EJ2V0DS00