參數(shù)資料
型號: PMB2201
廠商: SIEMENS A G
元件分類: 衰減器
英文描述: Mixer DC - 2.5GHz and Vector Modulator 0.8 - 1.5GHz
中文描述: 800 MHz - 1500 MHz RF/MICROWAVE VECTOR MODULATOR
封裝: PLASTIC, TSSOP-24
文件頁數(shù): 18/31頁
文件大小: 339K
代理商: PMB2201
PMB 2201
Semiconductor Group
18
08.97
AC/DC Characteristics
AC/DC characteristics involve the spread of values guaranteed within the specified
supply voltage and ambient temperature range. Typical characteristics are the median
of the production.
Supply voltage
V
VCC
= 2.7V...4.5V, Ambient temperature
T
amb
= +25°C
* Application hint
** The carrier suppression can be optimized for a particular application using offset voltages at the baseband
inputs A/AX and B/BX. The optimum values can be found iteratively by adjusting the A/AX and B/BX offsets
alternately until the carrier disappears into the noise floor. If the actual offset voltages differ from their optimum
values by
V
OSA
and
V
OSB
, the carrier suppression in dB is given by
where
V
m
is the peak value of the signal voltage at A/AX and B/BX.
*** Phase adjust pin ADJ not used.
****
a
IM3
can be increased by reducing the amplitude of the modulator inputs V
A-AX
and V
B-BX
.
#
Parameter
Sym-
bol
Limit Values
typ.
Unit
Test
Condition
Test
Circuit
min.
max.
Phase adjust input ADJ
19
Open circuit voltage
V
ADJ
880
mV
1
20
Input impedance
R
ADJ
20
k
Modulator output E/EX:
f
A,B
=10MHz;
V
A,B
=1V
PP
; 90° phase shift;
P
LO
=-10dBm
21
Output power
P
E/EX
-6
-2
2
dBm
1
22
Output power for
power matching *
P
E/EX
3
dBm
f
LO
= 1429MHz
Appl.
circuit
23
Carrier suppression **
a
C
32
30
47
40
dB
dB
f
LO
= 800MHz
f
LO
= 1500MHz
1
24
Single sideband
suppression ***
a
ssb
35
44
dB
1
25
Suppression of third
order distortion prod-
ucts ****
a
IM3
28
35
32
43
dB
dB
f
LO
= 800 MHz
f
LO
= 1500 MHz
1
26
Output noise floor *
P
N
-140
dBc
/Hz
f
LO
=
915MHz-
f
meas
=
935MHz
a
c
20 log
10
V
)
2
V
OSA
(
V
OSB
(
)
2
+
-------------------------------------------------------------
=
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