參數(shù)資料
型號: PMB2240
廠商: SIEMENS A G
元件分類: 無繩電話/電話
英文描述: GSM-Transmitter
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48
封裝: PLASTIC, TQFP-48
文件頁數(shù): 17/31頁
文件大小: 1663K
代理商: PMB2240
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Siemens AG
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37 Output impedance
(open collector diff.
output)
38 Output power
39 Carrier suppression
f
LO
= 900 MHz; f
I-IX
= f
Q-QX
=10MHz;
see S-parameter 9.5
P
E_b
-12
-6
26
32
35
-9
-3
32
38
-6
0
dBm
dBm
dB
dB
dB
cond1 **
cond2 ***
cond1 **
cond2 ***
1
1
1
1
1
a
Cmod
40 Single sideband
suppression
a
SSB
with 90° phase shift
between I and Q;
ROFF1,ROFF2 tuned
to maximum SSB
suppression ( appl.
hint: fig.1,sec. 8.3)
cond1 **
41 Suppression of
third order
distortion products
a
IM3
62
dB
1
50
-139
dB
cond2 ***
cond1 **
1
1
42 Signal to noise
ratio *
S/N
dBc/Hz
P
LO
= -8 dBm foffset
= 20MHz
cond2 ***
P
LO
= -8 dBm foffset
= 20MHz
-142
dBc/Hz
1
* Design hint
** cond1 means V
I-IX
= V
Q-QX
= 500 mVpp
*** cond2 means V
I-IX
= V
Q-QX
= 1 Vpp
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