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DATA  SHEET

Product specification

Supersedes data of April 1992

File under Discrete Semiconductors, SC01

1996 May 03

DISCRETE SEMICONDUCTORS

BB809

VHF variable capacitance diode

alfpage

M3D050

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1996 May 03

2

Philips Semiconductors

Product specification

VHF variable capacitance diode

BB809

FEATURES

High linearity

Matched to 3%

Hermetically sealed leaded glass

SOD68 (DO-34) package

C28: 4.7 pF; ratio: 9

Low series resistance.

APPLICATIONS

Electronic tuning in VHF television

tuners, band A up to 160 MHz

VCO.

DESCRIPTION

The BB809 is a variable capacitance

diode, fabricated in planar

technology, and encapsulated in the

hermetically sealed leaded glass

SOD68 (DO-34) package.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

V

R

continuous reverse voltage

30

V

I

F

continuous forward current

20

mA

T

stg

storage temperature

55

+150

°

C

T

j

operating junction temperature

55

+100

°

C

Fig.1  Simplified outline (SOD68; DO-34) and symbol.

handbook, halfpage

MAM159

k

a

Cathode side indicated by a yellow band on a black body.

ELECTRICAL CHARACTERISTICS

T

j

= 25

°

C; unless otherwise specified.

Note

1. V

R

 is the value at which C

d

= 25 pF.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

I

R

reverse current

V

R

= 28 V; see Fig.3

10

nA

V

R

= 28 V; T

j

= 85

°

C; see Fig.3

200

nA

r

s

diode series resistance

f = 200 MHz; note 1

0.6

C

d

diode capacitance

V

R

= 1 V; f = 1 MHz; see Figs 2 and 4

39

46

pF

V

R

= 28 V; f = 1 MHz; see Figs 2 and 4

4

5

pF

capacitance ratio

f = 1 MHz

8

10

capacitance matching

V

R

= 0.5 to 28 V

3

%

C

d 1V

(

)

C

d 28V

(

)

--------------------

C

d

C

d

----------

background image

1996 May 03

3

Philips Semiconductors

Product specification

VHF variable capacitance diode

BB809

GRAPHICAL DATA

Fig.2  Diode capacitance as a function of reverse voltage; typical values.

f = 1 MHz; T

j

= 25

°

C

.

handbook, full pagewidth

0

50

MBE610 - 1

10

2

10

1

10

1

10

20

30

40

Cd

(pF)

V

R

 (V)

Fig.3

Reverse current as a function of junction

temperature; maximum values.

handbook, halfpage

100

0

10

MLC816

10

2

10

3

50

IR

(nA)

T   (  C)

j

o

Fig.4

Temperature coefficient of diode

capacitance as a function of

reverse voltage; typical values.

T

j

 = 0 to 85

°

C.

handbook, halfpage

MLC815

1

10

10

2

10

3

10

4

10

5

10

1

(K

1

)

V   (V)

R

d

TC

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1996 May 03

4

Philips Semiconductors

Product specification

VHF variable capacitance diode

BB809

PACKAGE OUTLINE

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

Data sheet status

Objective specification

This data sheet contains target or goal specifications for product development.

Preliminary specification

This data sheet contains preliminary data; supplementary data may be published later.

Product specification

This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of the specification

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

Dimensions in mm.

Fig.5  SOD68 (DO-34).

handbook, full pagewidth

1.6

max

25.4 min

25.4 min

3.04

max

0.55

max

MSA212 - 1