MACOM AT-213PIN Datasheet

Digital Attenuator, 15 dB, 4-Bit,
TTL Driver, DC - 3 GHz

AT-213

CR-11

V 3.00

Features

n Attenuation: 1 dB steps to 15 dB
n Temperature Stability: ± 0.18 dB from –55°C to +85°C

Typical

n Low DC Power Consumption
n Hermetic Surface Mount Package
n Integral TTL Driver
n 50 Ohms Nominal Impedance

Description

M/A-COM’s AT-213 is a 4-bit, 1 dB step digital attenuator
in a hermetically sealed ceramic 16-lead surface mount
package. The AT-213 is ideally suited for use where high
accuracy, fast switching, very low power consumption and
low intermodulation products are required. Typical
applications include dynamic range setting in a precision
receiver circuits and other gain/leveling control circuits.
Environmental screening is available. Contact the factory
for information.

Electrical Specifications: TA = -55°C to +85°C 1

Parameter Test Conditions Frequency Units Min Typ Max

Reference Insertion Loss — DC - 0.5 GHz

DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz

dB
dB
dB
dB

—
—
—
—

—
—
—
—

1.7

1.9

2.2

2.5

Attenuation Accuracy 2 Any Single Bit

Any Combination of Bits

DC - 2.0 GHz
DC - 3.0 GHz

DC - 2.0 GHz
DC - 3.0 GHz

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

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

Or ± 0.4 dB, whichever is greater
± (0.2 dB +3% of atten setting in dB) dB
± (0.2 dB +3% of atten setting in dB) dB

Or ± 0.4 dB, whichever is greater

VSWR — — Ratio — — 1.6:1

Trise, Tfall 10% to 90% — ns — 9 —

Ton, Toff 50% Control to 90/10% RF — ns — 40 —

Transients In-Band (peak-peak) — mV — 30 —

1 dB Compression Input Power

Input Power

0.05 GHz

0.5 - 3.0 GHz

dBm
dBm

—
—

+22
+28

—
—

Input IP3 For two-tone Input Power

Up to +5 dBm

0.05 GHz

0.5 - 3.0 GHz

dBm
dBm

—
—

+40
+50

—
—

Input IP2 For two-tone Input Power

Up to +5 dBm

0.05 GHz

0.5 - 3.0 GHz

dBm
dBm

—
—

+45
+68

—

—
Vcc — — V 4.5 5.0 5.5
Vee — — V -8.0 — -5.0

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, 15 dB, 4-Bit, TTL Driver, DC - 2 GHz

AT-213

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

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

V 3.00

2

Parameter Test Conditions Frequency Units Min Typ Max

Icc Vcc = 4.5 to 5.5V

Vctl = 0 to 0.8V, or Vcc –2.1V to Vcc

— mA — — 4.0

Iee Vee = -5.0 to -8.0V — mA — — 1.0

Vctl
Vctl

Logic 0 (TTL)
Logic 1 (TTL)

—
—

V
V

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

Electrical Specifications: TA = -55°C to +85°C

Absolute Maximum Ratings 3

3. Operation of this device above any one of these parameters
may cause permanent damage.

4. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.

Parameter

Absolute Maximum

Max Input Power

0.5 GHz

0.5 - 3.0 GHz

+27 dBm
+34 dBm

Supply Voltages

Vcc
Vee

+5.5V

-8.5V

Control Voltage 4 -0.5V to Vcc +0.5V

Operating Temperature -55°C to +125°C

Storage Temperature -65°C to +150°C

Functional Schematic (Top View)

Truth Table

0 = TTL Low 1 = TTL High

C4 C3 C2 C1 Attenuation

0 0 0 0 Reference
0 0 0 1 1 dB
0 0 1 0 2 dB
0 1 0 0 4 dB
1 0 0 0 8 dB
1 1 1 1 15 dB

Control Inputs

RF2

GND

GND

GND

Vee

Vcc

C4

RF1

GND

GND

GND

GND

C1

GND Orientation Mark

C2 PIN 1

8 dB

4 dB

2 dB

1 dB