NEC UPB1510GV-E1, UPB1510GV Datasheet

DATA SHEET

BIPOLAR DIGITAL INTEGRATED CIRCUIT

µµµµ

PB1510GV

3 GHz INPUT DIVIDE BY 4 PRESCALER IC

FOR DBS TUNERS

The µPB1510GV is a 3.0 GHz input divide by 4 prescaler IC for DBS tuner applications. The µPB1510GV is

suitable for use of frequency divider for PLL synthesizer block. The µPB1510GV is a shrink package version of the

PB585G so that this small package contributes to reduce the mounting space.

µ

The µPB1510GV is manufactured using NEC’s high fT NESAT™ IV 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 toggle frequency : fin = 0.5 GHz to 3.0 GHz

• High-density surface mounting : 8-pin plastic SSOP (175 mil)

• Low current consumption : 5 V, 14 mA TYP.

• Fixed division :÷4

APPLICATION

• Prescaler between local oscillator and PLL frequency synthesizer included modulus prescaler

• DBS tuners with kit use of VHF/UHF band PLL frequency synthesizer

ORDERING INFORMATION

Part Number Package Marking Supplying Form

µ

PB1510GV-E1 8-pin plastic SSOP

(175 mil)

Remark

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

µ

PB1510GV)

1510 Embossed tape 8 mm wide.

Pin 1 is in tape pull-out direc tion.
1000 p/reel

Document No. P12752EJ2V0DS00 (2nd edition)
Date Published October 1998 N CP(K)
Printed in Japan

Caution Electro-static sensitive devices

The information in this document is subject to change without notice.

The mark shows major revised points.

1997©

µµµµ

PIN CONNECTION (Top View)

1

2

3

4

PRODUCT LINE-UP

PB1510GV

Pin No. Pin name

8

7

6

5

1V
2IN
3IN
4GND
5GND
6NC
7OUT
8NC

CC

Features

(Division, Frequency)

4, 2.5 GHz input

÷

4, 3.0 GHz input

÷

Remark

This table shows the TYP values of main parameters. Please refer to ELECTRICAL CHARACTER-

Part number I

PB585G 18 0.5 to 2.5 4.5 to 5.5 8-pin SOP (225 m i l ) NEC Original

µ

PB1510GV 14 0.5 to 3.0 4.5 to 5.5 8-pin SS OP (175 mil)

µ

ISTICS.

PB585G is discontinued.

µ

INTERNAL BLOCK DIAGRAM

IN

IN CLK

D
CLK

SYSTEM APPLICATION EXAMPLE
RF unit block of DBS tuners

1st IF input
from DBS converter

BPF

CC

(mA) fin (GHz) VCC (V) Package Pin Connection

D

Q
Q

MIX

CLK

Q
Q

AMP

SAW AGC amp. FM demo.

OUT

Baseband output

PB1510GV

OSC

µ

÷ 4
Prescaler

LPF

PLL synth.
for VHF/UHF
band

2

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PIN EXPLANATION

PB1510GV

Pin No. Symbol

1VCC4.5 to 5.5

2IN

3IN

4, 5 GND 0

6, 8 NC

7OUT

Applied Voltage

(Unit: V)

Pin Voltage

(Unit: V)










1.7 to 4.95 Signal input pin. This pi n should be coupled to signal

1.7 to 4.95 Signal input bypass pi n. This pin must be equipped with



1.0 to 4.7 Divided frequency output pin. Thi s pin is designed as

Supply voltage pin. This pi n m ust be equipped with
bypass capacitor (e.g. 1 000 pF) to minimize ground
impedance.

source with capacitor (e. g. 1 000 pF) for DC cut.

bypass capacitor (e.g. 1 000 pF) to minimize ground
impedance.

Ground pin. Ground pattern on the board should be
formed as wide as possible to minimize ground
impedance.

Non connection pins. These pins should be opened.

emitter follower output. Thi s pin can be connected to
input of prescaler withi n P LL synthesizer through DC cu t
capacitor.

Functions and Explanation

3

µµµµ

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Conditions Ratings Unit

PB1510GV

Supply voltage V
Total power dissipation P

Operating ambient temperature T
Storage temperature T

CC

D

A

stg

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol MIN. TYP. MAX. Unit Notice
Supply voltage V
Operating ambient temperature T

ELECTRICAL CHARACTERISTICS (TA =

Parameter Symbol Test Conditi ons MIN. TYP. MAX. Unit
Circuit current I
Upper limit operating frequency 1 f
Upper limit operating frequency 2 f
Lower limit operating frequency f
Input power 1 P
Input power 2 P
Output power P

CC

A

CC

in(U)1

in(U)2

in(L)

in1

in2

out

40 to +85

−−−−

TA = +25 °C6.0V
Mounted on double sided copper clad

50 × 50 × 1.6 mm epoxy glass P WB (T

A

= +85 °C)

250 mW

40 to +85

−

55 to +150

−

C

°

C

°

4.5 5.0 5.5 V
40 +25 +85

−

C, VCC = 4.5 to 5.5 V, ZS = ZL = 50

°°°°

C

°

)

ΩΩΩΩ

No signals 10.5 14 17 mA
Pin = −10 to +6 dBm 3.0
Pin = −15 to +6 dBm 2.7
Pin = −15 to +6 dBm
fin = 2.7 to 3.0 GHz
fin = 0.5 to 2.7 GHz
Pin = 0 dBm, fin = 2.0 GHz



−

−

−

10
15
12




0.5 GHz




−

7

+6 dBm
+6 dBm



GHz
GHz

dBm

4