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U2891B Datasheet(PDF) 3 Page - TEMIC Semiconductors

Part No. U2891B
Description  2.5 GHz Quadrature Up-Converter
Download  6 Pages
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Maker  TEMIC [TEMIC Semiconductors]
Homepage  http://www.temic.de
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U2891B Datasheet(HTML) 3 Page - TEMIC Semiconductors

   
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TELEFUNKEN Semiconductors
U2891B
Advanced Information
Rev. A2: 04.10.1995
3 (6)
Electrical Characteristics: General Data
Parameters
Test Conditions / Pin
Symbol
Min.
Typ.
Max.
Unit
Power supply
Supply voltage range
Pin 8, 20 and 21
VS, VSRF
2.7
5.5
V
Supply current
Pin 8, 20 and 21, VS = 3 V
IS, ISRF
25
mA
Electrical Characteristics: I/Q Modulator
Test conditions (unless otherwise specified): VS = 3 V, Tamb = 25
°C, referred to test circuit.
System impedance Zo = 50
W, fLO1 = 100 MHz, PLO1 = –10 dBm.
Parameters
Test Conditions / Pin
Symbol
Min.
Typ.
Max.
Unit
IF output
Pin 7
Output level
RLP =
R
PIFo
– 8
dBm
LO1 suppression
LORFo
40
dB
Voltage standing wave ratio
VSWRIFo
1.4
2
Sideband suppression
SBSIFo
45
dB
Baseband inputs
Pins 2, 3, 22 and 23
Input voltage range
(differential)
VBBi
500
900
mVpp
Input impedance
ZBBi
150
k
W
Input frequency
fBBi
200
MHz
LO1 input
Pins 4 and 5
Frequency range
fLOi
30
500
MHz
Input level 1)
PLOi
–10
–2
dBm
Input impedance
ZiLO
tbd.
W
Duty cycle range
DCRLO1
0.4
0.6
Power-down mode
Supply current
VPD
v 0.5 V Pin 14
IPD
<5
mA
Settling time
CSPD 100 pF,
CLO = 100 pF, CRFo = 1 nF
tS
10
ms
Power down voltage
Pin 14
“Power on”
VS = 3.5 to 5.5 V
VS = 2.7 to 3.5 V
VPON
VS – 0.5
VS
VS +0.5
VS +0.5
V
V
“Power down”
VPDN
1
V
Power down current
Power on
Power down
IPON
IPDN
0.15
< 1
mA
mA
Note:
1)
Required LO level is a function of the LO frequency


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