AT-107-TB - Tyco Electronics - Datasheet.Directory

Digital Attenuator

31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz

AT-107-PIN

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

RoHS

Compliant

Features

• Attenuation: 0.5 dB steps to 31.5 dB

• Temperature Stability: ± 0.18 dB from –55°C to

+85°C Typical

• Low DC Power Consumption

• Hermetic Surface Mount Package

• Integral TTL Driver

• 50 Ohm Nominal Impedance

• Lead-Free CR-13 Package

• 260°C Reflow Compatible

Description

M/A-COM’s AT-107-PIN is a GaAs FET 6-bit digital

attenuator with a 0.5 dB minimum step size and 31.5

dB total attenuation. This attenuator and integral

TTL driver is in a hermetically sealed ceramic 24-

lead surface mount package. The AT-107-PIN is

ideally suited for use where accuracy, fast switching,

very low power consumption and low intermodula-

tion products are required. Typical applications in-

clude dynamic range setting in precision receiver

circuits and other gain/leveling control circuits. Envi-

ronmental screening is available. Contact the fac-

tory for information.

Ordering Information

Part Number Package

AT-107-PIN Bulk Packaging

AT-107-TB Sample Test Board

Note: Reference Application Note M513 for reel size

information.

Note: Die quantity varies.

Functional Schematic

Pin Configuration

Pin No. Function Pin No. Function

1 GND 13 RF2

2 GND 14 GND

3 GND 15 GND

4 C16 16 GND

5 C8 17 GND

6 Vee (-5V to -8V) 18 GND

7 Vcc (+5V) 19 GND

8 C4 20 GND

9 C2 21 GND

10 C1 22 GND

11 C0.5 23 GND

12 GND 24 RF1

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.

The metal bottom of the case must be connected to RF and DC

ground.

Digital Attenuator

31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz

AT-107-PIN

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

RoHS

Compliant

Electrical Specifications: T

= -55°C to +85°C

Parameter Frequency Units Min Typ Max

Reference Insertion Loss DC - 0.5 GHz

DC - 1.0 GHz

DC - 2.0 GHz

—

3.2

3.6

4.0

Attenuation Accuracy

DC - 1.0 GHz

DC - 2.0 GHz

DC - 1.0 GHz

DC - 2.0 GHz

VSWR DC - 2.0 GHz Ratio — — 1.8:1

Trise, Tfall — ns — 9 —

Ton, Toff — ns — 45 —

Transients — mV — 40 —

1 dB Compression 0.05 GHz

0.5 - 2.0 GHz

dBm

—

+21

+29

—

Input IP3 0.05 GHz

0.5 - 2.0 GHz

dBm

—

+35

+48

—

Input IP2 0.05 GHz

0.5 - 2.0 GHz

dBm

—

+75

+79

—

± (0.15 +3% of atten. setting in dB) dB

± (0.2 +3% of atten. setting in dB) dB

or ± 0.4 dB, whichever is greater

± (0.2 +3% of atten. setting in dB) dB

or ± 0.4 dB, whichever is greater

Test Conditions

—

Any Single Bit

Any Combination of Bits

—

10% to 90%

50% Control to 90/10% RF

In-Band (peak-peak)

Input Power

For two-tone Input Power

Up to +5 dBm

For two-tone Input Power

Up to +5 dBm

Vcc — — V 4.5 5.0 5.5

Vee — — V -8.0 — -5.0

Icc Vcc = 4.5 to 5.5V

Vctl = 0 to 0.8V, or Vcc –

2.1V to Vcc

— mA — — 6.0

Iee Vee = -5.0 to -8.0V — mA — — 1.0

Vctl

Logic 0 (TTL)

Logic 1 (TTL)

—

0.0

2.0

—

0.8

5.0

Input Leakage Current (Low) 0 to 0.8V — µA — — 1.0

Input Leakage Current (High) 2.0 to 5.0V — µA — — 1.0

1. All specifications apply when operated with bias voltages of +5V for Vcc and –5.0V for Vee.

2. This attenuator is guaranteed monotonic.

Digital Attenuator

31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz

AT-107-PIN

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

RoHS

Compliant

Recommended PCB Configuration

Absolute Maximum Ratings

3,4

Parameter Absolute Maximum

Max Input Power

0.05 GHz

0.5 - 2.0 GHz

+27 dBm

+34 dBm

Supply Voltages

Vcc

Vee

+5.5V

-8.5V

Control Voltage

-0.5V to Vcc +0.5V

Operating Temperature -55°C to +125°C

Storage Temperature -65°C to +150°C

3. Exceeding any one or combination of these limits may cause

permanent damage to this device.

4. M/A-COM does not recommend sustained operation near

these survivability limits.

5. Standard CMOS TTL interface, latch-up will occur if logic

signal is applied prior to power supply.

Handling Procedures

Please observe the following precautions to avoid

damage:

Static Sensitivity

Gallium Arsenide Integrated Circuits are sensitive

to electrostatic discharge (ESD) and can be

damaged by static electricity. Proper ESD control

techniques should be used when handling these

devices.

Truth Table (Digital Attenuator)

C6 C5 C4 C3 C2 C1 Attenuation

0 0 0 0 0 0 Reference

0 0 0 0 0 1 0.5 dB

0 0 0 0 1 0 1 dB

0 0 0 1 0 0 2 dB

0 0 1 0 0 0 4 dB

0 1 0 0 0 0 8 dB

1 0 0 0 0 0 16 dB

1 1 1 1 1 1 31.5 dB

Control Inputs

0 = TTL Low; 1 = TTL High

Attenuation Accuracy vs. Frequency

Typical Performance Curves

Insertion Loss vs. Frequency

0.0

1.0

2.0

3.0

4.0

5.0

0.0 0.5 1.0 1.5 2.0

Frequency (GHz)

Insertion Loss (dB)

+ 8 5 °C + 2 5

°C

- 5 5

°C

- 0.60

- 0.40

- 0.20

0.00

0.20

0.40

0.60

0.0 0.5 1.0 1.5 2.0

Frequency (GHz)

Deviation from Nominal Atten (dB)

1 dB 2 d B4 d B 0 . 5 d B

Digital Attenuator

31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz

AT-107-PIN

M/A-COM Inc. and its affiliates reserve the right to make changes to the

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

Visit www.macom.com for additional data sheets and product information.

RoHS

Compliant

RF1 VSWR vs. Frequency

RF2 VSWR vs. Frequency

Typical Performance Curves

Attenuation Accuracy vs. Frequency

- 0.80

- 0.40

0.00

0.40

0.80

0.0 0.5 1.0 1.5 2.0

Frequency (GHz)

Deviation from Nominal Atten (dB)

8 d B 16 d B 3 1.5 dB

1.2

1.4

1.6

1.8

0.0 0.5 1.0 1.5 2.0

Frequency (GHz)

VSWR

1 d B 4 d B 8 & 16 d B Re f Loss & 0 . 5 d B

1.2

1.4

1.6

1.8

0.0 0.5 1.0 1.5 2.0

Frequency (GHz)

VSW R

1 & 2 dB 4 d B 8 dB 16 dB Re f Loss & 0 . 5 dB

†

Reference Application Note M538 for lead-free solder reflow

recommendations.

Lead-Free, CR-13 Ceramic Package

†