5. DCS Electrical Characteristics
Conditions unless otherwise stated: T
A
=25°C, Z
S
=Z
L
=50Ω; V
BATT
=3.5V; BS=high; TX_EN=high; P
IN
=5dBm,
Duty Cycle = 25%, Pulse Width = 1154µs, V
RAMP
= V
RAMP_MAX
Item
#
1
2
3
Parameter
Frequency range
Input power
Input impedance
Input VSWR
4
5
Load impedance
Load mismatch stability
All angles
All spurious < -36 dBm,
RBW=3MHz
6
Load mismatch ruggedness
All angles
No damage or permanent
degradation
7
8
Forward isolation
Harmonics
2nd harmonic
3rd harmonic
4th ... 8th harmonic
9
Maximum output power
P
OUT
MAX
Specifications
Symbol
f
MIN
...f
MA
P
IN
Min
1710
2
5
50
1.5:1
50
2.5:1
Ω
Set V
RAMP
where Pout
≤
32 dBm
VSWR
8:1
into 50 Ohm load
Typ
Max
1785
8
Unit
MHz
dBm
Ω
TX_EN = low or high
0.2V
≤
V
RAMP
≤
V
RAMP
MAX
remarks
Set V
RAMP
where Pout
≤
32 dBm
VSWR
10:1
into 50 Ohm load
-35
-30
dBm TX_EN = low, P
IN
= 8dBm
dBm
dBm P
OUT
≤
32dBm
dBm
dBm Nominal conditions
dBm VBATT = 3.0V, T
A
= 85°C
-20
-25
-10
-15
-5
32
30.5
33
10
Minimum output power
P
OUT
MIN
-5
dBm TX_EN=High, V
RAMP
=0.2V,
P
IN
= 8dBm
11
12
13
Power added efficiency
Power supply current
Output noise power, BW=100kHz
1805 MHz ... 1880 MHz
PAE
I
BAT
43
0.8
50
1.3
1.5
%
A
P
OUT
= P
OUT
MAX
MAX
DC current at P
OUT
= P
OUT
P
OUT
= P
OUT
MAX
-83
-77
290
dBm f
0
= 1785MHz
dB/V P
OUT
>-5dBm
14
Slope P
OUT
/V
RAMP
Copyright © 2004 TriQuint Semiconductor Inc., All rights reserved (Rev 3.6 2004-08-13)
All specifications subject to change without notice
6
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