SL3521ABM [ZARLINK]

Log Or Antilog Amplifier, 1 Func, 550MHz Band Width;


型号：	SL3521ABM
厂家：	ZARLINK SEMICONDUCTOR INC
描述：	Log Or Antilog Amplifier, 1 Func, 550MHz Band Width 放大器
文件：	总5页 (文件大小：214K)
中文：	中文翻译
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This product is obsolete.

This information is available for your

convenience only.

For more information on

Zarlink’s obsolete products and

replacement product lists, please visit

http://products.zarlink.com/obsolete_products/

SL3521

75dB RANGE LOGARITHMIC AMPLIFIER

The SL352l Is a successive detection logarithmic amplifier

capable of operating from l00MHz to 650MHz. It consists of

a monolithic chip mounted on a hybrid substrate Bypassing

capacitors and thick film resistols are also included An

attractive feature is its extremely small size less than

0.04c.u.ins (0 7x0 36x0 t6ins) The wide bandwidth low power

consurnption and high accuracy plus the inherent reliability of

monolithic integrated circuits make the SL352l an attractive

part for modern Radar and Electronic Warfare equiprnent

BM6

FEATURES

Function

RF INPUT

■

Small Size: 0.04 cu ins (less mounting tabs)

Low Power: 0.9W max

Frequency Range: 100 - 650MHz

High Accuracy: <0.75dB Error

High Output Voltage: 2V

Extremely High Stability with Temperature

High Reliability because of Low Component Count

-55 to 125°C Operating Temperature Range

OFFSET ADJUST

-5V V_EE

GROUND

+5V V_CC

VIDEO OUTPUT

APPLICATIONS

■

Ultra Wideband Log Receivers

Channelised Receivers

Monopulse Radar

Fig.1 Pin connections

ORDERING INFORMATION

SL3521 A BM

SL3521 AC BM

Fig.2 Test and application circuit (top view)

SL3521

ELECTRICAL CHARACTERISTICS

Test condltions (unless otherwise stated):

Temperature = +5V ± 10%, V_EE= -5V ± 10%, T _mountingbase = -55°C to +125°C

Value

Units

Notes

Characteristic

Min

Typ

Max

Frequency Range

Noise Bandwidth

Input Level

200

150

450

500

+15

MHz

Note 7

-3dB

dBm

Without Damage

Note 3

Noise Figure

Tangential Sensitivity

Video Output Range

Video Slope

-76

dBm

Volts DC

mV/dB

MHz

Note 1

Video Bandwidth

Critically Damped Trasient

Response

Rise Time

Linearity

Settled to within +/-0.7%

10% to 90% (60dB step)

-0.75

+0.75

Deviation from best fit straight

line Note 1

Video Output Impedance

Video Load Impedance

Input VSWR

Ω

190

Max Cap = 25pF

50Ω system

Positive Supply Current I_CC

Negative Supply Current I_EE

150

175

) at nominal

) Supply Voltage

Conducted Emissions on Supply

leads

-60

dBm

0dBm RF input

Video Offest Adjustment Range

Offset Adjust Output Impedance

Offset Adjust Voltage

-0.5

+0.5

Volts

kΩ

I/P = -70dBm Note 2

Note 4

1.4

-550

Note 5

Offset Adjust gain

V6/V2

Note6

Note 1. Measured between -65dBm and +5 over supply, temperature and frequency ranges

Note 2. Video offset is externally adjusted : after adjustment it is stable to ± 20mV

Note 3. Derived from tangential sensitivity measurement

Note 4. Nominal impedance between offset ADJ and GND

Note 5. Nominal bias on offset adjust

Note 6. Voltage gain between video output and offset adjust

Note 7. Frequency range over which log accuracy and dynamic range is guaranteed

SL3521

The SL3521 is a very easy device to use requiring only to be

attached to a suitable mounting face and supplies which may

be applied in any order. However a few points should be

noted:-

Devices may be supplied adjusted for a customer

specified DC output for a -70dBm RF input. Please

contact your local GPS Sales Office tor details.

Internal supply bypassing is incorporated giving some

40dB of rejection for frequencies above 100kHz. For

extra rejection of low frequency ripple extra flltering

should be provided.

The capacitive load of 25pF on the video output should

not be exceeded: to do so may restrict video

bandwidth.

The input pin must be at 0 Volts i.e. DC isolated.

The junction-to-case thermal resistance is

approximately 11 °C/W.

Offset adjustment may be made by applying a voltage

totheoffsetpin.ThisVoltagewillbeintherange-0.45V

to -0.55V and should not be such as to increase the

output oflset to more than ±0.5V: to do so may impair

the dynamic range. The impedance to ground is of the

order of 150012. Because of the gain between offset

input and output the offset supply must be well filtered.

ABSOLUTE MAXIMUM RATINGS

(Non-simultaneous)

Supplies:

+20% of Nominal

+150°C

-65°C to +150°C

±0.05V

Chip temperature:

Storage temperature

Input DC Voltage:

Input RF Power:

15dBm

Fig.3 S11 - SL3521 - 50Ω system

For more information about all Zarlink products

visit our Web Site at

www.zarlink.com

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use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from

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information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability,

performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee

that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any

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TECHNICAL DOCUMENTATION - NOT FOR RESALE

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