TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 1 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
SOIC-8 Package
Applications
• Edge QAM Gain Stage
• MDU Output
• RF Distribution Amplifiers
• Low Noise Optical TIA
Product Features
• 75 Ω, 50 MHz to 1200 MHz Bandwidth
• RF Low Noise Figure: 3.2 dB to 1000 MHz
• Configurable as an Optical low noise TIA
− EIN typ 3.5 pA/√Hz
− Optical S21Typ 20dB Z/75 dB
• Adjustable Low Power Consumption
• pHEMT device technology
• SOIC-8 package
Functional Block Diagram
1
2
3
4
8
7
6
5
RF
OUT
/ V
DD
A
N/C
N/C
RF
OUT
/ V
DD
B
RF
IN
/ V
G
A
N/C
N/C
RF
IN
/ V
G
B
Backside Pad - RF/DC GND
Pin 1 Reference Mark
A
B
Pin Configuration
Pin No.
Label
1 RF
IN
/ V
G
A
2, 3, 6, 7
N/C
4
RFIN / VG B
5
RFOUT / VDD B
8
RFOUT / VDD A
Backside Pad
RF/DC GND
General Description
The TAT7469 is a 75 Ω RF Amplifier designed for CATV
use, but capable of operation up to 1200 MHz. The
TAT7469 contains two separate amplifiers for push pull
applications. It is fabricated using 6
-
inch GaAs pHEMT
technology to optimize performance and cost. Each
amplifier contains on
-
chip active biasing. The bias
current set point of each amplifier is
adjustable with a
single resistor from the input to ground.
Ordering Information
Part No.
Description
TAT7469
75Ω Dual pHEMT Amplifier
TAT7469-SC8-EB
50-1200 MHz Evaluation Board
Standard T/R size = 1000 pieces on a 7” reel.
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 2 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Recommended Operating Conditions
Parameter
Min
Typ
Max
Units
Device Voltage (VDD)
5.0
V
Device Voltage (IDD)
250
mA
Case Temperature
−40
+85
°C
Tj for >106 hours MTTF
+145
°C
Electrical specifications are measured at specified test
conditions. Specifications are not guaranteed over all
recommended operating conditions.
Absolute Maximum Ratings
Parameter
Rating
Storage Temperature
−55 to 150°C
Device Voltage (VDD)
+10 V
Device Current (IDD)
400 mA(†)
Operation of this device outside the parameter ranges given
above may cause permanent damage.
† Total current of both amplifiers, individual side cannot
exceed half this value as an independent amplifier
Electrical Specifications
Test conditions unless otherwise noted:
TAT7469-SC8-EB Evaluation board, VDD=+5 V, Heatsink Temp= +25°C, Zo = 75Ω , BIAS (J2) pin to GND
Parameter
Conditions
Min
Typ
Max
Units
Operational Frequency Range
50
1200
MHz
Gain 50 To 1200 MHz 17.0 17.5 dB
Gain Flatness(1)
50 To 1000 MHz
±0.75
dB
Input Return Loss
50 To 1000 MHz
18
dB
>1000 To 1200 MHz
17
Output Return Loss
50 To 1000 MHz
23
dB
>1000 To 1200 MHz
17
Output IP2(3) Pout = +10 dBm/tone
f1=225 MHz, f2=325 MHz
184 mA < IDD < 315 mA
+70 +77 dBm
Output IP3 +37 +38 dBm
Noise Figure
Freq.=1000 MHz
3.2
dB
Device Current (IDD)(2)
184
250
315
mA
Thermal Resistance, θjb
Junction to base
13
°C/W
Notes:
1. Flatness determined by deviation from a straight-line curve fit.
2. R3 and R4 are used to set the bias current, 10 kΩ.
3. Low side intermod at 200 MHz.
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 3 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
TAT7469-SC8-EB Evaluation Board Schematic
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 4 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
TAT7469-SC8-EB Evaluation Board
Bill of Material − TAT7469-SC8-EB
Reference Des.
Value
Description
Manuf.
Part Number
U1
n/a
75 Ω Dual pHEMT Amplifier
TriQuint
TAT7469
L1
3.6 nH
Chip Coil, 0402, 5%
CoilCraft
0402CS-3N6XJLW
L2
2.2 nH
Chip Coil, 0402, 5%
CoilCraft
0402CS-2N2XJLW
L5, L6
560 nH
Chip Coil, 0402, 5%
CoilCraft
0402AF-561XJLW
L7
0.9 uH
Chip Coil, 1008, 10%
various
TX1, TX2(1)
1:1
1:1 Balun, 5 – 3000 MHz
MiniCircuits
TC1-33-75G2+
C1, C2, C3, C4, C7, C8,
C11, C12, C13, C14 0.01 uF Ceramic Cap, 0402, 16 V, NPO, 10% various
C5, C6
470 pF
Ceramic Cap, 0402, 50 V, NPO, 10%
various
C15, C16
1.0 pF
Ceramic Cap, 0402, 50 V, ±0.10 pF
AVX
04025A010BAT9A
C17, C18
0.5 pF
Ceramic Cap, 0402, 50 V, ±0.10 pF
AVX
04025A005BAT9A
C9, C10
0.1 uF
Ceramic Cap, 0603, 16 V, NPO, 10%
various
R1, R2
820 Ω
Thick Film Res, 0402, 1%
various
R3, R4
10 kΩ
Thick Film Res, 0402, 1%
various
R5, R6
30 Ω
Thick Film Res, 0402, 1%
various
R10
100 Ω
Thick Film Res, 0402, 1%
various
R11
0 Ω
Thick Film Res, 0402
various
C19, C20
N/L
Do Not Load
J3, J4
n/a
75 Ω Female connector
Amphenol
531-40039
Notes:
1. 1:1 balun may also be constructed using a binocular core (Fair Rite 2843002302; Type 43 material) with 1.5 turns of bifilar
wire (MWS T2341222-10).
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 5 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Performance Plots − TAT7469-SC8-EB
Test conditions unless otherwise noted: VDD=+5 V, IDD=250 mA (typ.), Temp=+25°C
15
16
17
18
19
20
21
0200 400 600 800 1000 1200
|S21| (dB)
Frequency (MHz)
Gain vs. Frequency
+85°C
+25°C
−40°C
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0200 400 600 800 1000 1200
|S22| (dB)
Frequency (MHz)
Output Return Loss vs. Frequency
+85°C
+25°C
−40°C
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0200 400 600 800 1000 1200
|S11| (dB)
Frequency (MHz)
Input Return Loss vs. Frequency
+85°C
+25°C
−40°C
0
1
2
3
4
5
6
0200 400 600 800 1000 1200
NF(dB)
Frequency (MHz)
Noise Figure vs. Frequency
+85°C
+25°C
−40°C
-90
-85
-80
-75
-70
-65
-60
-55
-50
0100 200 300 400 500 600
CSO (dBc)
Frequency (MHz)
CSO vs. Frequency
+85°C
+25°C
−40°C
Pout=39 dBmV/ch
80 Channels NTSC Flat
-90
-85
-80
-75
-70
-65
-60
-55
-50
0100 200 300 400 500 600
CTB (dBc)
Frequency (MHz)
CTB vs. Frequency
+85°C
+25°C
−40°C
Pout=39 dBmV/ch
80 Channels NTSC Flat
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 6 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Optical Application Reference Design Schematic
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 7 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Bill of Material − TAT7469-EVB
Reference Des.
Value
Description
Manuf.
Part Number
U1
TAT7469 Amplifier, SOIC-8
TriQuint
TAT7469
C1, C2
470 pF
CAP, 0402, 10%, 50V, X7R
TDK
ECJ-0EB1H471K
C3, C4, C5, C6, C7, C8,
C11, C12, C13, C14, C17
0.01 uF CAP, 0402, 10%, 16V, X7R various
C9, C10
0.1 uF
CAP, 0603, 10%, 16V, X7R
various
C22
0.1 uF
CAP, 0603, 10%, 50V, X7R
various
R1, R2
2k
RES, 0402, 5%. 1/16W. CHIP
various
R3, R4
5.6 k Ω
RES, 0402, 5%. 1/16W. CHIP
various
R8
22Ω
RES, 0402, 5%. 1/16W. CHIP
various
R10
100 Ω
RES, 0402, 1%. 1/16W. CHIP
various
R11
0 Ω
Thick Film Res, 0402
various
L1
27uH
IND, 0805, 5%, 120mA, 11MHz
COILCRAFT
0805LS-273XJLB
L2, L9
880 nH
IND, 0805, ±5%, Gowanda
GOWANDA
CC0805-880J-2
L4, L8
12 nH
IND, 0402, 5%
COILCRAFT
0402CS-12NXJL
L5, L6
560 nH
IND, 0402, 5%
COILCRAFT
0402AF-561XJL
L7
900 nH
IND, 1008, 10% Ferrite Ind
COILCRAFT
1008AF-901XKL
J1
N/A
F-SIDE_GND Conn Precision edge launch
LIGHTHORSE
LTI-FSF55MGT-P-10-A-X7
C15, C16, C18, C19,
C20, C21, R5, R6, R7 no load 0402, DNP
T1
1:1 75Ω
SMT balun CD542
MINICIRCUITS
TC1-33-75G2+
PD
EPM705
Photo Diode
JDSU
X07051650-004R
PCB
Rev 1
TAT7469 Optical EVB
TRIQUINT
1098793
J2-3, J4-5, J6-7
n/a
Conn, 1x2, 0.1 inch RA
MOLEX
022-28-8021
TAT7469-EVB Evaluation Board
J1
R3
C1
C18
C21
C2
L8
L4
R4
C5
C19
C20
C6
R7
R11
R5
C13C14
R6
C4
R2
C8
C17
C16
L6
R1
C3
C15
L5
C11
C12
R10
R8
C9
C10
L7
L9 L2
C7
T1
C
A
S
S
U1
C22
L1
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 8 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Typical Optical S21 & RF S22
Test conditions unless otherwise noted: V
DD
=+5 V, I
DD
=220 mA (typ.), V
PD
=+12 V Temp=+25°C
Typical Optical Receiver Distortion
Test conditions unless otherwise noted: V
DD
=+5 V, I
DD
=220 mA (typ.), V
PD
=+12 V Temp=+25°C
3.5% OMI, 79 channels NTSC, Flat Loading
Optical Power
(dBm)
IPD (mA)
Frequency
(MHz)
Noise Floor
(dBm)
Fund (dBmV/ch) CSO (dBc) CTB1 (dBc)
+1 1.2
55.25
-96.9
29.4
-66.7
-65.6
301.25
-95.3
28.8
-66.7
-64.7
547.25
-97.7
28.3
-73.8
-66.8
-6 0.24
55.25
-101.1
14.2
-64.5
-64.3
301.25
-100.8
14.8
-66.0
-63.8
547.25
-101.5
14.2
-67.2
-63.0
Notes:
1. CTB was limited by the optical transmitter in the test set-up, actual receiver results are better than shown.
Typical EIN Performance
Test conditions unless otherwise noted:
VDD=+5 V, IDD=220 mA (typ.), VPD=+12 V Temp=+25°C
3.5% OMI, 79 channels NTSC, Flat Loading
Freq (MHz)
EIN (pA/rtHz)
55 4.0
547
3.8
1000
3.5
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 9 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Package Marking and Dimensions
Marking: Part Number – TAT7469
Lot code – AaXXXX
Year/Week –YYWW
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 10 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
PCB Mounting Pattern
Notes:
1. All dimensions are in millimeters. Angles are in degrees.
2. Use 1 oz. copper minimum for top and bottom layer metal.
3. Vias are required under the backside paddle of this device for proper RF/DC grounding and thermal dissipation. We
recommend a 0.35mm (#80/.0135") diameter bit for drilling via holes and a final plated thru diameter of 0.25mm (0.010”).
4. Ensure good package backside paddle solder attach for reliable operation and best electrical performance.
TAT7469
CATV 75 Ω pHEMT Dual RF Amplifier
Datasheet: Rev I 6-11-14
- 11 of 11-
Disclaimer: Subject to change without notice
© 2013 TriQuint
www.triquint.com
Product Compliance Information
ESD Sensitivity Ratings
Caution! ESD-Sensitive Device
ESD Rating:
Class 1B
Value:
Passes ≥ 500 V to <1000 V
Test:
Human Body Model (HBM)
Standard:
JEDEC Standard JESD22-A114
ESD Rating:
Class IV
Value:
Passes ≥ 2000 V
Test:
Charged Device Model (CDM)
Standard:
JEDEC Standard JESD22-C101
Solderability
Comp
atible with both lead-free (260°C maximum
reflow
temperature) and tin/lead (245
°C maximum
reflow
temperat
ure) soldering processes.
Contact plating:
Ni, Pd, & Au
RoHs Compliance
This part
is
compliant with EU 2002/95/EC RoHS
directive (Restrictions on the Use of Certain Hazardous
Substances in Electrical and Electronic Equipment).
This product also has th
e following attributes:
• Lead Free
• Halogen Free (Chlorine, Bromine)
• Antimony Free
• TBBP-A (C15H12Br402) Free
• PFOS Free
• SVHC Free
MSL Rating
MSL Rating:
Level 3
Test:
260°C convection reflow
Standard:
JEDEC Standard IPC/JEDEC J-STD-020
Contact Information
For the latest specifications, additional product information, worldwide sales and distribution locations, and information
about TriQuint:
Web: www.triquint.com Tel: +1.707.526.4498
Email: info-sales@triquint.com Fax: +1.707.526.1485
For technical questions and application information:
Email: sjcapplications.engineering@triquint.com
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
her
ein. 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 e
ntirely 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.
