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參數(shù)資料
| 型號(hào)： | RF2938 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | 2.4GHZ SPREAD-SPECTRUM TRANSCEIVER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封裝： | TQFP-48 |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大?。?/td> | 528K |
| 代理商： | RF2938 |
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2-3
RF2938
Rev A8 010418
11
T
Parameter
Specification
Typ.
Unit
Condition
Min.
Max.
Data Amplifiers
Bandwidth
Gain (Limiting mode)
Rise and Fall Time
Logic High Output
Logic Low Output
Hysteresis
Transmit Modulator and
LPF
Filter Gain
Baseband Filter 3dB Bandwidth
Passband Ripple
Group Delay
40
MHz
dB
ns
V
V
mV
60
2
V
CC
Open Loop.
5pF load.
Source Current 1mA
Sink Current 1mA.
5
V
CC
-0.3V
0.3
30
0
dB
MHz
dB
ns
Any setting
5th order Bessel LPF, Set by BW CTRL
1
35
0.1
15
At 35MHz, increasing as bandwidth
decreases.
At 2MHz.
Group Delay
Ultimate Rejection
Input Impedance
Input AC Voltage
Input DC Offset Requirement
IF Frequency Range
Output Impedance
I/Q Phase Balance
I/Q Gain Balance
Conversion Voltage Gain
400
>80
ns
dB
k
3
Single ended
Linear, Single ended.
For correct operation.
200
1.8
500
mV
p-p
V
MHz
k
1.6
45
1.7
2
Open Collector when TX on, hi-Z when off
±2
±5
1.0
0.5±0.25
1.1
dB
V/V
With Current Combination into 50
single-
ended load
With Current Combination into 50
single-
ended load
Without external offset adjustments.
280MHz
Output P1dB
-6
dBm
Carrier Output
-30
dBm
Harmonic Outputs
Transmit VGA and
Upconverter
VGA Gain Range
VGA Input Voltage Range
VGA Gain Sensitivity
VGA Input Impedance
-30
dBc
17
dB
V
dB/V
dB
dBm
1.0 to 2.0
17
230-j400
75-j350
50
+10 to +27
-9
Positive Slope
280MHz
374MHz
With matching elements.
With 50
match on the output.
1dB compression - Single Side Band,
TX GC=1.0V
1dB compression - Single Side Band,
TX GC=2.0V
RF Mixer Output Impedance
VGA/Mixer Conversion Gain
VGA/Mixer Output Power
VGA/Mixer Output Power
-4
dBm
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相關(guān)代理商/技術(shù)參數(shù) |
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