U2891B Datasheet, PDF (3/6 Pages) TEMIC Semiconductors – 2.5 GHz Quadrature Up-Converter

TELEFUNKEN Semiconductors
U2891B
Electrical Characteristics: General Data
Parameters
Power supply
Supply voltage range
Supply current
Test Conditions / Pin
Symbol Min.
Typ.
Max.
Unit
Pin 8, 20 and 21
V_S, V_SRF
2.7
5.5
V
Pin 8, 20 and 21, V_S = 3 V I_S, I_SRF
25
mA
Electrical Characteristics: I/Q Modulator
Test conditions (unless otherwise specified): V_S = 3 V, T_amb = 25°C, referred to test circuit.
System impedance Zo = 50 W, f_LO1 = 100 MHz, P_LO1 = –10 dBm.
Parameters
Test Conditions / Pin
Symbol Min.
Typ.
IF output
Pin 7
Output level
LO1 suppression
R_LP = R
Voltage standing wave ratio
Sideband suppression
Baseband inputs Pins 2, 3, 22 and 23
P_IFo
–8
LO_RFo
40
VSWR_IFo
1.4
SBS_IFo
45
Input voltage range
(differential)
V_BBi
500
Input impedance
Input frequency
LO1 input
Pins 4 and 5
Z_BBi
150
f_BBi
Frequency range
Input level ¹⁾
Input impedance
Duty cycle range
Power-down mode
f_LOi
30
P_LOi
– 10
Z_iLO
tbd.
DCR_LO1
0.4
Supply current
V_PD v 0.5 V Pin 14
I_PD
<5
Settling time
C_SPD 100 pF,
t_S
10
C_LO = 100 pF, C_RFo = 1 nF
Power down voltage
Pin 14
“Power on”
“Power down”
Power down current
V_S = 3.5 to 5.5 V
V_S = 2.7 to 3.5 V
Power on
Power down
V_PON
V_S – 0.5
V_S
V_PDN
I_PON
0.15
I_PDN
<1
Note:
1_{) Required LO level is a function of the LO frequency}
Max.
Unit
dBm
dB
2
dB
900
mVpp
kW
200
MHz
500
MHz
–2
dBm
W
0.6
mA
ms
V_S +0.5
V
V_S +0.5
V
1
V
mA
mA
Rev. A2: 04.10.1995
Advanced Information
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