SE2525L
RangeCharger™ 2.4GHz Power Amplifier with Power Detector
Preliminary Information
External Coupled Power Detector
External Coupled Positive Slope
Conditions:
V
CC
= V
EN
= 3.3 V, f = 2.45 GHz, V
B
connected to V
REG
, T
A
= 25 °C, SLOPE
SEL
= Open Circuit, V
DET
IN/DET
SEL
= open circuit, as measured on SiGe Semiconductor’s SE2525L-EV1 evaluation board,
unless otherwise noted.
Parameter
Input power detect range
Detector voltage
(1)
Detector voltage
(1)
Detector voltage
(1)
Input Impedance
Output Impedance
DC load impedance
Conditions
-
P
OUT
= 23 dBm
P
OUT
= 19 dBm
P
OUT
= NO RF
-
-
-
Min.
-10
-
-
-
-
250
10
Typ.
-
1.18
0.8
0.35
275//1.1
-
-
Max.
10
-
-
-
-
700
-
Unit
dBm
V
V
V
Ω//pF
Ω
kΩ
Symbol
PDET
VDET
VDET
VDET
ZDET
PDZ
OUT
PDZ
LOAD
(1) P
OUT
measured at the input to the 17dB microstrip coupler on SiGe Semiconductor’s SE2525L-EV1 evaluation
board
External Coupled Negative Slope
Conditions:
V
CC
= V
EN
= 3.3 V, f = 2.45 GHz, V
B
connected to V
REG
, T
A
= 25 °C, V
DET
OUT load = 2.4 kΩ to ground,
SLOPE
SEL
= GND, V
DET
IN/DET
SEL
= open circuit, as measured on SiGe Semiconductor’s SE2525L-
EV1 evaluation board, unless otherwise noted.
Parameter
Input power detect range
Detector voltage
(1)
Detector voltage
(1)
Detector voltage
(1)
Conditions
-
P
OUT
= 23 dBm
P
OUT
= 19 dBm
P
OUT
= NO RF
Min.
-10
-
-
-
Typ.
-
0.3
0.56
0.90
Max.
10
-
-
-
Unit
dBm
V
V
V
Symbol
PDET
VDET
VDET
VDET
(1) P
OUT
measured at the input to the 17 dB microstrip coupler on SiGe Semiconductor’s SE2525L-EV1 evaluation
board
SE2525L External Coupled Power Detector
(Positive)
2.2
2
1.8
1.6
SE2525L External Coupled Power Detector
(Negative)
1
0.9
0.8
0.7
VDET (V)
6
8
10
12
14
16
18
20
22
24
26
28
VDET (V)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.6
0.5
0.4
0.3
0.2
0.1
0
7
9
11
13
15
17
19
21
23
25
Output Power (dBm)
Output Power (dBm)
Figure 4: SE2525L External Coupled Power Detector Characteristic
28-DST-01
Rev 2.1
Apr-25-2006
Confidential
QA042506
7 of 12
SIGE [ SIGE SEMICONDUCTOR, INC. ]
