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Q01B005M Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. Q01B005M
Description  Intermediate Frequency Digital Variable Gain Amplifier
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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Intermediate Frequency Digital Variable Gain Amplifier
IDTF1200
RevO
Page 1 of 13
April, 2011
DATASHEET
GENERAL DESCRIPTION
The IDTF1200 is a Digitally Controlled Intermediate
Frequency Differential Variable Gain Amplifier for
BaseStation and other commercial applications with a
low IF frequency. The device offers extremely low
Noise Figure over the entire gain control range. The
device is packaged in compact 5x5 Thin QFNs with 200
ohm differential input and output impedances for ease
of integration into the receiver lineup. Versions
covering IF frequencies up to 300 MHz with low
distortion are available.
COMPETITIVE ADVANTAGE
The F1200 acts to enhance system SNR when VGA gain
is reduced. The F1200 noise figure (NF) degrades only
slightly (NF slope ~ -0.16 dB/dB) over a 13 dB control
range while holding the Output IP3 approximately
constant. The resultant improvement in noise can
enhance the system SNR up to 2 decibels at low gain
settings relative to a standard VGA.
The device has excellent DNL and INL simplifying digital
compensation. The device also offers the extremely low
Harmonic, IM2, and IM3 distortion necessary to drive an
ADC directly in an IF sub-sampling application.
APPLICATIONS
BaseStation Diversity Receivers
Digital Pre-Distortion
Wave Point-to-Point Radios
Public Safety Receivers
PART# MATRIX
Part#
Gain
Range
IP3O
IF freq
range
NF
F1200
22 to -1
48
50 - 160
2.6
F1206*
20 to -11
47
150 - 250
3.6
F1207*
20 to -11
46
230 - 300
3.7
*Future Product
FEATURES
Ideal for high SNR systems
22 dB typ Maximum Gain
23 dB gain control range
7 bit parallel control
0.25 dB Gain Steps
Excellent N
No
oiisse
e FFiig
gu
urre
e <
< 3
3..0
0 d
dB
B
5mm x 5mm 28 pin package
200 Ω Differential Input
200 Ω Differential Output
N
NFF d
de
eg
grra
ad
de
ess <
< 2
2d
dB
B @
@ 1
12
2d
dB
B rre
ed
du
ucce
ed
d g
ga
aiin
n
50 MHz – 160 MHz frequency range
Ultra-Linear: IIP
P3
3OO +
+4
48
8 d
dB
Bm
m ttyyp
piicca
all
External current setting resistor
Fast Gain Step Settling < 20 nsec
DEVICE BLOCK DIAGRAM
`
`
Decode
Logic
VCC
ATTN
In
AMP
out
Bias
Control
Gain
Control
VCC
ATTN
Out
AMP
In
ISET
VMODE
7
STBY
ORDERING INFORMATION
IDTF1200NBGI8
0.75 mm height
package
Green Industrial
Temp range
Tape &
Reel
Omit IDT
prefix
RF product Line




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