PRELIMINARY
•
PERFORMANCE (3.5 GHz)
(802.16-2004 WiMAX Modulation)
♦
30 dBm Typical Output Power, < 2.5% EVM
♦
14 dB Typical Small-Signal Gain
♦
Class B Efficiency 14% (8V / 720 mA I
DQ
)
♦
> 48 dBm 3
rd
Order Intercept Point
♦
Low total components count
FRD3500X230
3.5 GH
Z
W
I
MAX R
EFERENCE
D
ESIGN
(1 W)
•
DESCRIPTION AND APPLICATIONS
DEMO BOARD SIZE: 1 x 2 in. (2.54 x 5.08 cm.)
CONNECTORIZED VERSION SHOWN
The FRD3500X230 is a 2-stage, connectorized Reference Design that delivers a typical linear power
of 30 dBm with the 802.16-2004 modulation, while maintaining less than 2.5% EVM. The design
features a FPD4000AS driver stage, followed by a FPD10000AF power output stage. Both stages
are dual-biased to allow a range of bias conditions on each stage, allowing operation from Class B to
Class A. Board layout and components list are included.
•
ELECTRICAL SPECIFICATIONS AT 22°C
Parameter
Operating Bandwidth
Small Signal Gain
Gain Flatness
Center Frequency (adjustable)
Power at 1dB Gain Compression
Class A - CW Single Tone
Power Gain at dB Gain Compression
Class A - CW Single Tone
Channel Power with 802.16-2004
2.5% max. EVM
Channel Power with 802.16-2004
2.5% max. EVM
Power-Added Efficiency
802.16-2004 modulation
Operating Current at 30 dBm P
CH
Nominal Drain Supply
Nominal Gate Voltages
For Class B Operation
Total DC Power (operating)
P
TOT
I
OP
V
DD
V
GG
P
CH
P
CH
Eff
Class AB Mode
V
DS
= 10 V; I
DQ
= 1.25 A
Class B Mode
V
DS
= 8 V; I
DQ
= 730 mA typ.
Class AB Mode
Class B Mode
V
DD
= 8.0 V; V
GG
= -1.20 / -0.89 V
All operating conditions
V
GG
1 (1
st
Stage)
V
GG
2 (2
nd
Stage)
Class B at P
CH
= 30 dBm
10
14
0.9
8
-1.2
-0.89
7.0
A
V
V
V
W
%
29
30
dBm
31.0
31.5
dBm
G
1dB
V
DS
= 10V; I
DQ
= 1.6 A
13
dB
Symbol
BW
SSG
∆G
f
CEN
P
1dB
Test Conditions
Class A / AB / B
Class A: V
DS
= 10V; I
DQ
= 1.6 A
Class A: V
DS
= 10V; I
DQ
= 1.6 A
Nominal bias conditions
V
DS
= 10V; I
DQ
= 1.6 A
3.4
Min
Typ
200
14
±
1.5
3.5
37.5
3.6
dBm
Max
Units
MHz
dB
dB
Phone:
+1 408 850-5790
Fax:
+1 408 850-5766
http://
www.filtronic.co.uk/semis
Revised:
8/10/05
Email:
sales@filcsi.com
PRELIMINARY
FRD3500X230
3.5 GH
Z
W
I
MAX R
EFERENCE
D
ESIGN
(1 W)
•
RECOMMENDED OPERATING BIAS CONDITIONS
Drain-Source Voltage:
From 8V to 10V
Quiescent Current:
From 700mA (Class B) to 1.6A (Class A)
ABSOLUTE MAXIMUM RATINGS
1
Parameter
Drain Supply Voltage
Gate Supply Voltage
Operating Current
Gate Current
RF Input Power
2
Channel Operating Temperature
Storage Temperature
Total Power Dissipation
Gain Compression
Simultaneous Combination of Limits
3
Symbol
V
DD
V
GG
I
OP
I
G
P
IN
T
CH
T
STG
P
TOT
Comp.
2
•
Test Conditions
-3V < V
GS
< +0V
0V < V
DD
< +8V
For V
DS
> 2V
Forward or reverse current
Under any acceptable bias state
Under any acceptable bias state
Non-Operating Storage
Ambient temperature to 85ºC
Under any bias conditions
2 or more Max. Limits
Min
Max
12
-3
1.8
+60/-15
500
175
Units
V
V
A
mA
mW
ºC
ºC
W
dB
%
-40
150
12
5
80
1
3
Users should avoid exceeding 80% of 2 or more Limits simultaneously
T
Ambient
= 22°C unless otherwise noted
Max. RF Input Limit must be further limited if input VSWR > 2.5:1
Notes:
•
Operating conditions that exceed the Absolute Maximum Ratings could result in permanent damage to the devices.
•
HANDLING PRECAUTIONS
To avoid damage to the devices care should be exercised during handling. Proper Electrostatic
Discharge (ESD) precautions should be observed at all stages of storage, handling, assembly, and
testing. This product has be tested to Class 1A (> 250V but < 500V) using JESD22 A114, Human
Body Model, and to Class A, (< 200V) using JESD22 A115, Machine Model..
APPLICATIONS NOTES & DESIGN DATA
Recommendations on matching circuits is available from your local Filtronic Sales Representative or
directly from the factory.
User must ensure that proper bias sequencing is observed: Gate bias
must be applied before Drain bias, and during power-down the Drain bias must be removed
first.
•
Phone:
+1 408 850-5790
Fax:
+1 408 850-5766
http://
www.filtronic.co.uk/semis
Revised:
8/10/05
Email:
sales@filcsi.com
PRELIMINARY
•
TYPICAL SMALL-SIGNAL PERFORMANCE:
FRD3500X230
3.5 GH
Z
W
I
MAX R
EFERENCE
D
ESIGN
(1 W)
•
TYPICAL CLASS AB / B CW PERFORMANCE:
Table 2 Linearity under Class AB bias condition
Phone:
+1 408 850-5790
Fax:
+1 408 850-5766
http://
www.filtronic.co.uk/semis
Revised:
8/10/05
Email:
sales@filcsi.com
PRELIMINARY
FRD3500X230
3.5 GH
Z
W
I
MAX R
EFERENCE
D
ESIGN
(1 W)
TYPICAL CLASS A CW PERFORMANCE:
Table 1 Power Sweep under Class A bias condition
Phone:
+1 408 850-5790
Fax:
+1 408 850-5766
http://
www.filtronic.co.uk/semis
Revised:
8/10/05
Email:
sales@filcsi.com
PRELIMINARY
FRD3500X230
3.5 GH
Z
W
I
MAX R
EFERENCE
D
ESIGN
(1 W)
All information and specifications are subject to change without notice.
Phone:
+1 408 850-5790
Fax:
+1 408 850-5766
http://
www.filtronic.co.uk/semis
Revised:
8/10/05
Email:
sales@filcsi.com
stm32/stm8
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
