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F1951NBGI

Description
VFQFPN-24, Tray
CategoryWireless rf/communication    Telecom circuit   
File Size3MB,23 Pages
ManufacturerIDT (Integrated Device Technology)
Environmental Compliance
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F1951NBGI Overview

VFQFPN-24, Tray

F1951NBGI Parametric

Parameter NameAttribute value
Brand NameIntegrated Device Technology
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerIDT (Integrated Device Technology)
Parts packaging codeVFQFPN
package instruction4 X 4 MM, 0.75 MM HEIGHT, 0.50 MM PITCH, GREEN, QFN-24
Contacts24
Manufacturer packaging codeNBG24P2
Reach Compliance Codecompli
ECCN codeEAR99
JESD-30 codeS-XQCC-N24
JESD-609 codee3
length4 mm
Humidity sensitivity level1
Number of functions1
Number of terminals24
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Maximum seat height0.8 mm
Nominal supply voltage3.3 V
surface mountYES
Telecom integrated circuit typesPCM JITTER ATTENUATOR
Terminal surfaceMATTE TIN
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
Base Number Matches1
D
ESCRIPTION
This document describes the specification for the F1951
Digital Step Attenuator. The F1951 is part of a family of
Glitch-Free
TM
DSAs optimized for the demanding
requirements of communications Infrastructure. These
devices are offered in a compact 4x4 QFN package with
50
Ω
impedances for ease of integration into the radio
system.
F
EATURES
Glitch-Free
TM
, < 0.6 dB transient overshoot
C
OMPETITIVE
A
DVANTAGE
Digital step attenuators are used in Receivers and
Transmitters to provide gain control. The F1951 is a 6-
bit step attenuator optimized for these demanding
applications. The silicon design has very low insertion
loss and low distortion (+65 dBm IP3
I
.). The device has
pinpoint accuracy and settles to final attenuation value
within 400 nsec. Most importantly, the F1951 includes
Renesas’
Glitch-Free
TM
technology which results in less
than 0.6 dB of overshoot ringing during MSB transitions.
This is in stark contrast to competing DSAs that
glitch as
much as 10 dB
during MSB transitions (see p.10).
Lowest insertion loss for best SNR
Glitch-Free when transitioning –
won’t damage PA or ADC
Extremely accurate with low distortion
TM
Glitch-Free
TM
TM
Spurious Free Design
3 V to 5.25 V supply
Attenuation Error < 0.2 dB @ 2 GHz
Low Insertion Loss < 1.2 dB @ 2 GHz
Excellent Linearity +65 dBm IP3
I
Fast settling time, < 450 ns
Class 2 JEDEC ESD (> 2kV HBM)
Serial Interface 31.5 dB Range
Stable Integral Non-Linearity over temperature
4x4 mm Thin QFN 24 pin package
D
EVICE
B
LOCK
D
IAGRAM
RF
1
RF
2
A
PPLICATIONS
Base Station 2G, 3G, 4G, TDD radiocards
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
Bias
DEC
SPI
RSTb
V
DD
CLK
SDI
SDO
CSb
O
RDERING
I
NFORMATION
0.8 mm height
package
Tape &
Reel
P
ART
# M
ATRIX
Part#
F1951
F1950
F1952
Freq range
(MHz)
100 - 5000
150 - 5000
100 – 4000
Resolution /
Range (dB)
0.50 / 31.5
0.25 / 31.5
0.50 / 15.5
Control
Serial Only
Serial Only
Serial Only
IL
(dB)
-1.2
-1.3
-0.9
Pinout
HITT
PE
HITT
F1951NBGI8
Green
Industrial
Temp range
© 2020 Renesas Electronics Corporation
1
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