RF2485 データシートの表示（PDF） - RF Micro Devices
部品番号
コンポーネント説明
メーカー
RF2485 Datasheet PDF : 8 Pages
| |||
RF2485
Preliminary
Absolute Maximum Ratings
Parameter
Supply Voltage
Input LO and RF Levels
Operating Ambient Temperature
Storage Temperature
Rating
-0.5 to +7.5
+10
-40 to +85
-40 to +150
Unit
VDC
dBm
°C
°C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Parameter
Specification
Unit
Min.
Typ.
Max.
Condition
LO Input
Frequency Range
Power Level
Input VSWR
5
Modulation Input
T=25°C, VDD=5VDC, I&Q inputs=2VPP
200
600
MHz
-3
+6
dBm
1.2:1
With external 50Ω termination; see applica-
tion schematic, note A.
Frequency Range
Reference Voltage (VREF)
Modulation (I&Q)
Modulation (I&Q)
Maximum Modulation (I&Q)
Input Resistance
DC Offset
Amplitude Error (I/Q)
Quadrature Phase Error
RF Output
Output Power
Output Impedance
Output VSWR
Broadband Noise Floor
Sideband Suppression
Carrier Suppression
IM3
TETRA Modulation
DC
100
MHz
2.0
3.0
V
VREF ± 0.7
VREF ± 1.5
VREF ± 2.5
3000
50
150
0.2
±1
±3
-1.5
-0.5
50
1.5:1
V
V
V
Ω
mV
dB
°
dBm
Ω
I & Q signals for -0.5dBm output power.
I & Q signals for +5dBm output power.
In-phase and quadrature signals.
ISIG-IREF and QSIG-QREF; to achieve maxi-
mum carrier suppression.
From 350MHz to 450MHz.
VDD=5V, LO Power=0dBm, LO
Freq=400MHz, SSB, I&Q input=0.7VP
-149
-147
dBm/Hz At 5MHz offset
30
43
dB
Unadjusted
20
26
dB
Modulation DC offset can be externally
adjusted for optimum suppression. Suppres-
sion is typically better than 25dB without
adjustment.
-40
-52
dBc
Channel Power
Adjacent Channel Power
Rejection
25 kHz
50 kHz
Power Supply
-3.0
-47.0
-67.0
-2.5
-48.0
-68.5
-2.0
-49.0
-70.0
dBm
dBc
dBc
dBc
1.7VP-P TETRA Modulation
LO, 450MHz@ -5.0dBm, VREF 2.5V
VCC = 5.0 V
Voltage
Current
5
V
Specifications
4.5
5.5
V
Operating Limits
28
39
mA
Operating
5-56
Rev A3 010820
Share Link: 