MGCT04
Preliminary Information
Value
Characteristics
Min.
Variable gain amplifiers
IF amp. operating frequency range
RF amp. operating frequency
range
Overall gain control range
Control voltage for minimum gain
Control voltage for maximum gain
AGC control voltage slope
SSB mixer and UHF oscillator
inputs
Cellular band LO input level
PCS band LO input level
Cellular band local oscillator input
frequency. (LO 1GHz)
PCS band local oscillator input
frequency (LO 2GHz)
900MHz RF output stage
-15
-15
850
1500
-10
-10
-5
-5
1100
2150
33
50
750
84
0.1
2.6
60
90
200
2000
Typ.
Max.
Units
Conditions
MHz
MHz
dB
V
V
dB/V
Voltage gain
dBm
dBm
MHz
MHz
From external UHF osc. via
matching network
From external UHF osc. via
matching network
Specifications assume 50 ohm
load driven via a matching network
(Fig. 6)
824
+8
-66
-45
-90
849
+19
-52
-30
-60
+14
-128
-123
121
+19
MHz
dBm
dBc
dBc
dBc
dBm
dBm/
Hz
dBm/
Hz
Note 1
Pout = +3dBm Vcc = 3V
Pout = +8dBm, Offset = 30kHz
Vcc = 3V
Pout = +8dBm, Offset = 60kHz
Vcc = 3V
Note 2
At duplex frequency, offset 45MHz
Pout = +3dBm
ftx = 849 MHz Pout = +8dBm
RF amplifier operating frequency
range
Output power
ACPR (CDMA)
ACPR (TDMA)
Output power AMPS
Receive band noise
Receive band noise
(869 - 894MHz)
Spurious Outputs
LO Leakage
Image Rejection
Other Spurii
+10
-30
-30
-20
-20
-20
dBc
dBc
dBm
Pout = +8dBm
Pout = +8dBm
Note 3
Table 3 - AC Characteristics (continued)
4
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