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PDF TAT7457 Data sheet ( Hoja de datos )

Número de pieza TAT7457
Descripción CATV 75 Ohm pHEMT Adjustable Gain RF Amplifier
Fabricantes TriQuint Semiconductor 
Logotipo TriQuint Semiconductor Logotipo



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TAT7457
CATV 75 pHEMT Adjustable Gain RF Amplifier
Applications
Single-ended and Push-pull Optical Receivers
Low-noise Drop Amplifiers
Distribution Amplifiers
Multi-Dwelling Units
Single-ended Gain Block
SOT-89 package
Product Features
Functional Block Diagram
Gain, return loss and bias externally adjustable
On-chip active bias for consistent bias current and
repeatable performance
DC – 2000 MHz bandwidth
Low noise: typical NF < 2 dB to 1000MHz
Flexible 5 V to 8 V biasing
IDD(5V) = 120 mA typical in application circuit
19 dB typical gain in application circuit
+40 dBm typical OIP3
+61 dBm typical OIP2
+21 dBm typical P1dB
Low distortion: CSO -66 dBc, CTB -78 dBc
(10 dBmV/ch at input, 80 ch NTSC flat)
pHEMT device technology
SOT-89 package
www.DataSheet.net/
RF IN
GND
RFOUT
External feedback resistor
allowing gain and return
loss adjustment
General Description
Pin Configuration
The TAT7457 is a low cost RF amplifier designed for
applications from DC to 2000 MHz. The balance of low
noise and distortion provides an ideal solution for a wide
range of broadband amplifiers used in cable television
applications such as optical receivers and low noise front
ends.
The TAT7457 has features allowing a great deal of design-
in flexibility. Gain and return loss are adjustable with an
external feedback resistor. An internal bias circuit
mitigates the effect of temperature and process variation
and an external resistor may be used to adjust the bias
current to optimize distortion or noise performance. There
are no on-chip capacitors limiting the low freq response
which extends down to DC.
The TAT7457 is fabricated using 6-inch GaAs pHEMT
technology to optimize performance and cost. It provides
excellent gain and return loss consistency inherent to the
pHEMT process.
Pin #
1
2
3
4
Symbol
RF IN
GND
RF OUT
GND PADDLE
Ordering Information
Part No.
Description
TAT7457
TAT7457-EB
75 High linearity pHEMT amplifier
(lead-free/RoHS compliant SOT-89 Pkg)
Amplifier evaluation board
Standard T/R size = 1000 pieces on a 7” reel.
Preliminary Data Sheet: Rev D 09/14/11
© 2011 TriQuint Semiconductor, Inc.
- 1 of 11 -
Disclaimer: Subject to change without notice
Connecting the Digital World to the Global Network®
Datasheet pdf - http://www.DataSheet4U.co.kr/

1 page




TAT7457 pdf
TAT7457
CATV 75 pHEMT Adjustable Gain RF Amplifier
Application Board Typical Performance For DC - 1200 MHz, 8 V Application
Case temperature noted on graphs. Reference design used. Vsupply = 8 V; Idd = 140 mA at 25 oC. Idd adjusted with an
external supply, similar to adjusting R3 and R5. Contact [email protected] for more information.
25
24
23
22
21
20
19
18
17
16
15
0
50
55
60
65
70
75
80
85
90
95
100
0
+850 C
+250 C
-400 C
Gain
325 650
Freq (MHz)
975
CSO & CTB
80 ch NTSC @ +10 dBmV/ch FLAT Input
CSO +850 C
CSO +250 C
CSO -400 C
CTB +850 C
CTB +250 C
CTB -400 C
100 200 300 400 500
Freq (MHz)
1300
600
0
5
10
15
20
25
30
35
40
0
0
5
10
15
20
www.DataSheet.net/
25
30
35
40
0
Input Return Loss
+250 C
+850 C
-400 C
325 650
Freq (MHz)
975
Output Return Loss
-400 C
+250 C
+850 C
325 650
Freq (MHz)
975
1300
1300
6
+850 C
5 +250 C
-400 C
4
Noise Figure
3
2
1
0
0 325 650 975
Freq (MHz)
1300
Preliminary Data Sheet: Rev D 09/14/11
© 2011 TriQuint Semiconductor, Inc.
- 5 of 11 -
Disclaimer: Subject to change without notice
Connecting the Digital World to the Global Network®
Datasheet pdf - http://www.DataSheet4U.co.kr/

5 Page





TAT7457 arduino
TAT7457
CATV 75 pHEMT Adjustable Gain RF Amplifier
Product Compliance Information
ESD Information
ESD Rating:
Value:
Test:
Standard:
ESD Rating:
Value:
Test:
Standard:
Class TBD
Passes TBD V min.
Human Body Model (HBM)
JEDEC Standard JESD22-A114
Class TBD
Passes TBD V min.
Charged Device Model (CDM)
JEDEC Standard JESD22-C101
Solderability
Compatible with the latest version of J-STD-020, Lead
free solder, 260 °C.
This part is compliant with EU 2002/95/EC RoHS
directive (Restrictions on the Use of Certain Hazardous
Substances in Electrical and Electronic Equipment).
MSL Rating
Level 3 at +260 °C convection reflow
The part is rated Moisture Sensitivity Level x at TBD°C per
JEDEC standard IPC/JEDEC J-STD-020.
Contact Information
For the latest specifications, additional product information, worldwidewww.DataSheet.net/ sales and distribution locations, and information about
TriQuint:
Web: www.triquint.com
Tel: +1.707.526.4498
Fax: +1.503.526.1485
For technical questions and application information:
Important Notice
The information contained herein is believed to be reliable. TriQuint makes no warranties regarding the information contained
herein. TriQuint assumes no responsibility or liability whatsoever for any of the information contained herein. TriQuint
assumes no responsibility or liability whatsoever for the use of the information contained herein. The information contained
herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with
the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest
relevant information before placing orders for TriQuint products. The information contained herein or any use of such
information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual property
rights, whether with regard to such information itself or anything described by such information.
TriQuint products are not warranted or authorized for use as critical components in medical, life-saving, or life-sustaining
applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death.
Preliminary Data Sheet: Rev D 09/14/11
© 2011 TriQuint Semiconductor, Inc.
- 11 of 11 -
Disclaimer: Subject to change without notice
Connecting the Digital World to the Global Network®
Datasheet pdf - http://www.DataSheet4U.co.kr/

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