AT90-0001 MACOM
Document overview
- Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 3
Technical content
Features
n Attenuation: 1.0 dB Steps to 31 dB n High Accuracy to 6 GHz n Small Footprint, JEDEC Package n Integral TTL driver n 50 ohm impedance n Test boards are available n Tape and Reel Packaging Available
Description
M/A-COM’s AT90 -0001 is a GaAs FET 5 -bit digital a t- tenuator with an integral TTL driver. Step size is 1.0 dB providing 31 dB total attenuation range. This device is in a 32 lead FQF P-N surface mount package. Due to superior grounding techniques this digital attenuator offers superior performance to 6 GHz. T he AT90-0001 is ideally suited for use where accuracy, fast speed, very low power consum p- tion and low costs are required. Electrical Specifications TA = +25°C Parameter Test Conditions Frequency Units Min Typical Max Insertion Loss — DC - 2.0 GHz DC - 4.0 GHz DC - 6.0 GHz dB dB dB 2.5 3.3 5.0 3.1 3.8 5.8 Attenuation Accuracy 1 to 24 dB Bits 25 to 31 dB Bits DC - 6.0 GHz DC - 6.0 GHz dB dB ±(0.3 +4% of atten.) ±(0.3 +5% of atten.) VSWR Full Range DC - 2.0 GHz DC - 6.0 GHz Ratio Ratio 1.4:1 1.7:1 1.7:1 2.4:1 1 dB Compression —
50 MHz
0.5 - 6.0 GHz dBm dBm +22 +28 Input IP2 Two tone inputs to +5 dBm 50 MHz 0.5 - 6.0 GHz dBm dBm +43 +60 Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-6.0 GHz dB dB +37 +48 Vcc -Vee V V 4.75 -8.0 5.0 -5.0 5.25 -4.75 Switching Speed 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% nS nS Logic "0" Logic "1" Sink Current is 20 µA Max. Source Current is 20 µA Max. V V 0.0 2.0 0.8 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, 31.0 dB, 5-Bit, TTL Driver, DC - 6.0 GHz AT90-0001 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 5.00 Absolute Maximum Ratings 1 Parameter Absolute Maximum Max. Input Power
0.05 GHz
0.5 - 6.0 GHz +27 dBm +34 dBm +Vcc +5.5V -Vee -8.5V Logic Voltages 2 -0.5 to Vcc + 0.5V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +125°C 1. Operation of this device above any one of these parameters may cause permanent damange. 2. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. Pin Configuration Pin # Function Pin # Function
1 NC 17 NC
2 C16 18 NC
3 C8 19 NC
4 C4 20 NC
5 C2 21 NC
6 C1 22 NC
7 GND 23 NC
8 NC 24 NC
9 NC 25 NC
10 NC 26 GND
11 GND 27 RF2
12 RF1 28 GND
13 GND 29 NC
14 NC 30 -Vee
15 NC 31 NC
16 NC 32 +Vcc
NC = No Connection Truth Table C16 C8 C4 C2 C1 Attenuation 0 0 0 0 0 Loss, Reference 0 0 0 0 1 1 dB 0 0 0 1 0 2 dB 0 0 1 0 0 4 dB 0 1 0 0 0 8 dB 1 0 0 0 0 16 dB 1 1 1 1 1 31 dB 0 = TTL Low; 1 = TTL High Recommended PCB Layout 3 3. Application Note C2083 is available on line at www.macom.com
Digital Attenuator, 31.0 dB, 5-Bit, TTL Driver, DC - 6.0 GHz AT90-0001 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 5.00 Typical Performance Curves VSWR vs. Frequency Insertion Loss vs. Frequency Accuracy (dB) vs. Frequency
Ordering Information
AT90-0001TR Tape and Reel (1K Reel) AT90-0001-TB Units Mounted on Test Board Accuracy (dB) vs. Frequency Frequency (GHz) Insertion Loss (dB) +85°C - 40°C+25°C 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 Frequency (GHz) VSWR RF1 - IL RF1 - 31 dBRF2 - 31 dB RF2 - ILRF1 - IL -0.50 -0.25 0.00 0.25 0.50 Frequency (GHz) Accuracy (dB) 1 dB 4 dB 1 dB 2 dB -1.50 -0.75 0.00 0.75 1.50 Frequency (GHz) Accuracy (dB) 16 dB 31 dB 8 dB