6-bit Digital Step Attenuator F1953 400 to 4000 MHz Datasheet FEATURES GENERAL DESCRIPTION TM Glitch-Free , < 0.6 dB transient overshoot This document describes the specification for the Spurious Free Design IDTF1953 Digital Step Attenuator. The F1953 is part of a TM 2.7 to 3.6 V supply family of Glitch-Free DSAs optimized for the demanding Attenuation Error < 0.5 dB 2 GHz requirements of communications Infrastructure. These Low Insertion Loss < 1.4 dB 2 GHz devices are offered in a compact 4x4 QFN package with Excellent Linearity >+60 dBm IP3I 50 impedances for ease of integration. Fast settling time, < 400 ns Serial or Parallel Interface 31.5 dB Range COMPETITIVE ADVANTAGE Stable Integral Non-Linearity over temperature Digital step attenuators are used in Receivers and Low Power Consumption < 200 uA Transmitters to provide gain control. The IDTF1953 is a Integrated DC blocking capacitors 6-bit step attenuator optimized for these demanding Drop-In replacement applications. The silicon design has very low insertion 4x4 mm Thin QFN 20 pin package loss and low distortion (> +60 dBm IP3I.) The device has pinpoint accuracy and settles to final attenuation DEVICE BLOCK DIAGRAM value within 400 ns. Most importantly, the F1953 TM includes IDTs Glitch-Free technology which results in less than 0.5 dB of overshoot ringing during MSB transitions. This is in stark contrast to competing DSAs that glitch as much as 10 dB (see p. 10.) Lowest insertion loss for best SNR RF RF 1 2 TM Glitch-Free when transitioning wont damage PA or ADC TMTM Glitch-Free Glitch-Free Extremely accurate with low distortion APPLICATIONS Bias DEC SPI Base Station 2G, 3G, 4G, TDD radio-cards Repeaters and E911 systems 6 Digital Pre-Distortion V V D 5:0 CLK DATA LE Point to Point Infrastructure MODE DD Public Safety Infrastructure WIMAX Receivers and Transmitters ORDERING INFORMATION Military Systems, JTRS radios RFID handheld and portable readers Omit IDT Tape & 0.8 mm height Cable Infrastructure prefix Reel package PART MATRIX IDTF1953NCGI8 Part Freq range Resolution Control IL Pinout Green / Range RF product Line Industrial PE43702 Temp range Parallel & F1950 150 - 4000 0.25 / 31.75 -1.3 Serial PE43701 F1951 100 - 4000 0.50 / 31.5 Serial Only -1.2 HMC305 F1952 100 4000 0.50 / 15.5 Serial Only -0.9 HMC305 PE4302 Parallel & F1953 400 - 4000 0.50 / 31.5 -1.3 Serial DAT-31R5 2018 Integrated Device Technology, Inc. 1 September 5, 2018 F1953 Datasheet ABSOLUTE MAXIMUM RATINGS VDD to GND -0.3 V to +4.0 V D 5:0 , DATA, CLK,LE,VMODE -0.3 V to 3.6 V RF Input Power (RF1, RF2) calibration and testing +29 dBm RF Input Power (RF1, RF2) continuous RF operation +23 dBm (Junction Ambient) +50 C/W JA (Junction Case) The Case is defined as the exposed paddle +3 C/W JC Operating Temperature Range (Case Temperature) T = -40 C to +100 C C Maximum Junction Temperature 140 C Storage Temperature Range -65 C to +150 C Lead Temperature (soldering, 10s) +260 C Stresses above those listed above may cause permanent damage to the device. Functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD Caution This product features proprietary protection circuitry. However, it may be damaged if subjected to high energy ESD. Please use proper ESD precautions when handling to avoid damage or loss of performance. IDTF1953 RECOMMENDED OPERATING CONDITIONS Parameter Comment Sym Min Typ Max Units Supply Voltage Main Supply VDD 2.7 3.0 3.6 V Temperature Range Operating Range (Case) T -40 +100 C C Frequency Range Operating Range FRF 400 4000 MHz RF1 Impedance Single Ended 50 ZRF1 RF2 Impedance Single Ended Z 50 RF2 2018 Integrated Device Technology, Inc. 2 September 5, 2018