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Renesas Electronics Components Datasheet

IDTF1912 Datasheet

Digital Step Attenuator

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6 Bit Digital Step Attenuator
GENERAL DESCRIPTION
This document describes the specification for the IDT
F1912 Digital Step Attenuator. The F1912 is part of a
family of Glitch-FreeTM DSAs optimized for the
demanding requirements of Base Station (BTS) radio
cards and numerous other non-BTS applications.
These devices are offered in a compact 4mm x 4mm
20 pin QFN package with 50Ω impedances for ease of
integration.
COMPETITIVE ADVANTAGE
Digital step attenuators are used in receivers and
transmitters to provide gain control. The F1912 is a 6-
bit step attenuator optimized for these demanding
applications. The silicon design has very low insertion
loss and low distortion (> +60 dBm IIP3). The device
has pinpoint accuracy. Most importantly, the F1912
includes IDT’s Glitch-FreeTM technology, which results
in low overshoot and ringing during MSB transitions.
Glitch-FreeTM technology so PA or ADC will not
be damaged during when transitions.
Extremely accurate with low distortion.
Lowest insertion loss for best SNR
APPLICATIONS
Base Station 2G, 3G, 4G, TDD radio cards
Repeaters and E911 systems
Digital Pre-Distortion
Point to Point Infrastructure
Public Safety Infrastructure
WIMAX Receivers and Transmitters
Military Systems, JTRS radios
RFID Handheld and Portable Readers
Cable Infrastructure
ORDERING INFORMATION
Omit IDT
prefix
0.8 mm height
package
Tape &
Reel
IDTF1912NCGI8
RF product Line
Green
IDTF1912NCGI
Datasheet
FEATURES
1 MHz to 4000 MHz
Serial and 6 bit Parallel Interface
31.5 dB Control Range
0.5 dB step
Glitch-FreeTM, low transient overshoot
3.0 V to 5.25 V supply
1.8 V or 3.3 V control logic
Attenuation Error < 0.20 dB @ 2 GHz
Low Insertion Loss < 1.4 dB @ 2 GHz
Ultra Linear IIP3 > +60 dBm
IIP2 = +110 dBm typical
Stable Integral Non-Linearity over temperature
Low Current Consumption 550 µA typical
-40 °C to +105 °C operating temperature
4mm x 4mm Thin QFN 20 pin package
FUNCTIONAL BLOCK DIAGRAM
RF1
Glitch-FreeTTMM
RF2
Bias
Decoder
SPI
VMODE
D[5:0]
CLK DATA LE
Part# Details
Part#
F1950
F1951
F1952
F1953
F1956
F1912
Freq Range
(MHz)
150 - 4000
100 - 4000
100 4000
400 4000
1 - 4000
1 4000
Resolution /
Range (dB)
Control
IL
(dB)
0.25 / 31.75
Parallel &
Serial
1.3
0.50 / 31.5 Serial Only 1.2
0.50 / 15.5 Serial Only 0.9
0.50 / 31.5
Parallel &
Serial
1.3
0.25 / 31.75
Parallel &
Serial
1.4
0.50 / 31.5
Parallel &
Serial
1.4
Pinout
PE43702
PE43701
HMC305
HMC305
PE4302
DAT-31R5
PE43705,
RFSA3715
PE4312
PE4302
Glitch-FreeTM, Digital Step Attenuator
1
Rev 2, July 2017


Renesas Electronics Components Datasheet

IDTF1912 Datasheet

Digital Step Attenuator

No Preview Available !

IDTF1912NCGI
Datasheet
6 Bit Digital Step Attenuator
ABSOLUTE MAXIMUM RATINGS
1 MHz to 4000 MHz
Parameter
VDD to GND
DATA, LE, CLK, D[5:0]
RF1, RF2
Maximum Input Power applied
to RF1 or RF2 (>100 MHz)
Operating Case Temperature
Maximum Junction Temperature
Junction Temperature
Continuous Power Dissipation
Storage Temperature Range
Lead Temperature (soldering, 10s)
Electrostatic Discharge HBM
(JEDEC/ESDA JS-001-2012)
ESD Voltage CDM (Per JESD22-C101F)
Symbol
VDD
VLogic
VRF
PRF
TJmax
Tjmax
Tst
VESDHBM
VESDCDM
Min
-0.3
-0.3
-0.3
-65
Max Units
+5.5
V
Lower of
(VDD+0.3, 3.9)
V
+0.3
V
+34
dBm
+105
+140
140
1.5
150
260
2000
(Class 2)
500
(Class C2)
°C
°C
°C
W
°C
°C
Volts
Volts
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.
PACKAGE THERMAL AND MOISTURE CHARACTERISTICS
θJA (Junction Ambient)
θJC (Junction Case) [The Case is defined as the exposed paddle]
Moisture Sensitivity Rating (Per J-STD-020)
50 °C/W
3 °C/W
MSL1
Glitch-FreeTM, Digital Step Attenuator
2
Rev 2, July 2017


Part Number IDTF1912
Description Digital Step Attenuator
Maker Renesas
PDF Download

IDTF1912 Datasheet PDF






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