AT90-0413 MACOM | Alldatasheet

Document overview

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Technical content

Features

n Attenuation: 1 dB Steps to 15 dB n Low DC Power Consumption n Small Footprint, JEDEC Package n Integral TTL Driver n 50 Ohm Impedance n Test Boards Available n Tape and Reel Packaging Available

Description

M/A-COM’s AT90 -0413 is a GaAs FET 4 -Bit digital attenuator with integral driver. Step size is 1 dB providing a 15 dB attenuation range. This device is in an FQFP -N plastic surface mount package. The AT90 -0413 is suited for applications where accuracy, fast speed, low power consumption and low costs are required. Electrical Specifications: TA = 25°C Parameter Test Conditions Frequency Units Min. Typ. Max. Insertion Loss — DC-2.5 GHz DC-4.0 GHz dB dB 2.0 2.5 2.5 3.0 Attenuation Accuracy Individual Bits or Combination of Bits DC-2.5 GHz DC-4.0 GHz dB dB ±(0.3+4% of atten setting) ±(0.3+6% of atten setting) VSWR Full Attenuation Range DC-2.5 GHz DC-4.0 GHz Ratio Ratio 1.5:1 1.8:1 1.8:1 2.0:1 Switching Speed 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% nS nS 150 1 dB Compression — 50 MHz 0.5-4.0 GHz dB dB +21 +29 Input IP3 Two-tone Inputs up to +5 dBm 50 MHz 0.5-4.0 GHz dB dB +35 +48 +Vcc — — V 4.75 5.0 5.25 Logic “0” Sink Current is 20 µA max. — V 0.0 — 0.8 Logic “1” Sink Current is 20 µA max. — V 2.0 — 5.0 Icc Vcc min to max, Logic “0” or “1” — mA — 0.2 6 -Iee -Vee min to max, Logic “0” or “1” — mA — -0.2 -1

Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 3.00 Recommended PCB Layout 2 Pin Configuration Pin No. Function Pin No. Function

1 GND 17 N/C

2 C8 18 N/C

3 C4 19 N/C

4 C2 20 N/C

5 C1 21 N/C

6 GND 22 N/C

7 GND 23 N/C

8 N/C 24 N/C

9 N/C 25 N/C

10 N/C1 26 GND

11 GND 27 RF2

12 RF1 28 GND

13 GND 29 N/C1

14 N/C 30 -Vee

15 N/C 31 N/C

16 N/C 32 +Vcc

  1. Application Note C2083 is available on line at www.macom.com 1. Pins 10 & 29 must be isolated. Absolute Maximum Ratings 3 Parameter Absolute Maximum Max. Input Power

0.05 GHz

0.5 - 4.0 GHz +27 dBm +34 dBm +Vcc +5.5V -Vee -8.5V Logic Voltages 4 -0.5 to +Vcc + 0.5V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +125°C 3. Operation of this device above any one of these parameters may cause permanent damange. 4. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. Truth Table C8 C4 C2 C1 Attenuation 0 0 0 0 Loss, Reference 0 0 0 1 1.0 dB 0 0 1 0 2.0 dB 0 1 0 0 4.0 dB 1 0 0 0 8.0 dB 1 1 1 1 15.0 dB 0 = TTL Low; 1 = TTL High Typical Performance Curves VSWR @ Insertion Loss Insertion Loss 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out 1.00 1.50 2.00 2.50 3.00 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB)

Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 3.00 Typical Performance Curves Attenuation Error, 1 dB Bit Attenuation Error, 2 dB Bit Attenuation Error, 4 dB Bit Attenuation Error, 8 dB Bit VSWR, 1 dB Bit Attenuation Error, Max. Attenuation 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out -0.30 -0.20 -0.10 0.00 0.10 0.20 0.30 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB) -0.30 -0.20 -0.10 0.00 0.10 0.20 0.30 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB) -0.20 0.00 0.20 0.40 0.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB) -0.60 -0.40 -0.20 0.00 0.20 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB) -0.40 -0.20 0.00 0.20 0.40 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) Attenuation (dB)

Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 3.00 Typical Performance Curves VSWR, 2 dB Bit VSWR, 4 dB Bit VSWR, 8 dB Bit VSWR, Max. Attenuation 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out 1.00 1.20 1.40 1.60 0 500 1000 1500 2000 2500 3000 3500 4000 Frequency (MHz) VSWR RF In RF Out Insertion Loss vs. Temperature 1 dB Bit vs. Temperature 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 1000 2000 3000 4000 Frequency (MHz) Insertion Loss (dB) +25°C -40°C +85°C -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 0 1000 2000 3000 4000 Frequency (MHz) Attenuation Accuracy (dB) -40°C +25°C +85°C

Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 3.00 Typical Performance Curves 2 dB Bit vs. Temperature 4 dB Bit vs. Temperature 8 dB Bit vs. Temperature Max. Attenuation vs. Temperature

Ordering Information

AT90-0413TR Tape and Reel (1K Reel) AT90-0413-TB Units Mounted on Test Board -0.1 0.1 0.2 0.3 0.4 0.5 0 1000 2000 3000 4000 Frequency (MHz) Attenuation Accuracy (dB) -40°C +25°C +85°C 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 1000 2000 3000 4000 Frequency (MHz) Attenuation Accuracy (dB) -40°C +25°C +85°C -0.35 -0.30 -0.25 -0.20 -0.15 -0.10 -0.05 0.00 0.05 0 1000 2000 3000 4000 Frequency (MHz) Attenuation Accuracy (dB) -40°C +25°C +85°C -0.8 -0.6 -0.4 -0.2 0.2 0.4 0 1000 2000 3000 4000 Frequency (MHz) Attenuation Accuracy (dB) -40°C +25°C +85°C