AT-213

Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 3 GHz V 3.00 AT-213 Features n Attenuation: 1 dB steps to 15 dB n Temperature Stability: ± 0.18 dB from –55°C to +85°C n n n n CR-11 Typical Low DC Power Consumption Hermetic Surface Mount Package Integral TTL Driver 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 Reference Insertion Loss Test Conditions — Frequency DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz DC - 2.0 GHz DC - 3.0 GHz DC - 2.0 GHz DC - 3.0 GHz — — — — 0.05 GHz 0.5 - 3.0 GHz 0.05 GHz 0.5 - 3.0 GHz 0.05 GHz 0.5 - 3.0 GHz — — Units dB dB dB dB Min — — — — Typ — — — — Max 1.7 1.9 2.2 2.5 Attenuation Accuracy 2 Any Single Bit Any Combination of Bits ± (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 Ratio ns ns mV dBm dBm dBm dBm dBm dBm V V — — — — — — — — — — 4.5 -8.0 — 9 40 30 +22 +28 +40 +50 +45 +68 5.0 — 1.6:1 — — — — — — — — — 5.5 -5.0 VSWR Trise, Tfall Ton, Toff Transients 1 dB Compression Input IP3 Input IP2 Vcc Vee — 10% to 90% 50% Control to 90/10% RF In-Band (peak-peak) Input Power Input Power For two-tone Input Power Up to +5 dBm For two-tone Input Power Up to +5 dBm — — 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 V 3.00 Electrical Specifications: TA = -55°C to +85°C Parameter Icc Iee Vctl Vctl Input Leakage Current (Low) Input Leakage Current (High) Test Conditions Vcc = 4.5 to 5.5V Vctl = 0 to 0.8V, or Vcc –2.1V to Vcc Vee = -5.0 to -8.0V Logic 0 (TTL) Logic 1 (TTL) 0 to 0.8V 2.0 to 5.0V Frequency — — — — — — Units mA mA V V µA µA Min — — 0.0 2.0 — — Typ — — — — — — Max 4.0 1.0 0.8 5.0 1.0 1.0 Absolute Maximum Ratings 3 Parameter Max Input Power 0.5 GHz 0.5 - 3.0 GHz Supply Voltages Vcc Vee Control Voltage 4 Truth Table Control Inputs C4 C3 0 0 0 1 0 1 C2 0 0 1 0 0 1 1 = TTL High C1 0 1 0 0 0 1 Attenuation Reference 1 dB 2 dB 4 dB 8 dB 15 dB Absolute Maximum +27 dBm +34 dBm +5.5V -8.5V -0.5V to Vcc +0.5V -55°C to +125°C -65°C to +150°C 0 0 0 0 1 1 0 = TTL Low Operating Temperature Storage Temperature 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. Functional Schematic (Top View) RF2 8 dB RF1 GND GND 4 dB GND GND GND Vee Vcc C4 1 dB 2 dB GND GND C1 GND Orientation Mark C2 PIN 1 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. 2 Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 2 GHz Typical Performance Curves AT-213 V 3.00 Ref. Insertion Loss vs. Frequency +85°C 2.5 +25°C -55°C Attenuation Accuracy vs. Frequency 1 dB 2 dB 4 dB 8 dB Full Attenuation Deviation from Nominal Atten (dB) 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Insertion Loss (dB) 2 1.5 1 0.5 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) RF1 VSWR vs. Frequency 1 dB 1.6 1.5 1.4 2 dB 4 dB 8 dB Reference Loss State 1.6 1.5 1.4 RF2 VSWR vs. Frequency 1 dB 2 dB 4 dB 8 dB Reference Loss State VSWR 1.3 1.2 1.1 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 VSWR 1.3 1.2 1.1 1 0.0 0.5 1.0 1.5 2.0 2.5 3 Frequency (GHz) Frequency (GHz) Ordering Information Part Number AT-213 PIN Package CR-11 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. 3