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參數(shù)資料
| 型號： | AD8345AREZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 調(diào)制器/解調(diào)器 |
| 英文描述： | 140 MHz - 1000 MHz RF/MICROWAVE QUADRAPHASE MODULATOR |
| 封裝： | MO-153ABT, TSSOP-16 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 1013K |
| 代理商： | AD8345AREZ-REEL7 |
AD8345
Rev. B | Page 3 of 20
SPECIFICATIONS
VS = 5 V; LO = 2 dBm @ 800 MHz; 50 Ω source and load impedances; I and Q inputs 0.7 V ±0.3 V on each side for a 1.2 V p-p
differential input, I and Q inputs driven in quadrature @ 1 MHz baseband frequency. TA = 25°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RF OUTPUT
Operating Frequency1
140
1000
MHz
Output Power
0.5
dBm
140 MHz
0.5
dBm
220 MHz
3
1
+2
dBm
800 MHz
Output P1dB
2.5
dBm
Noise Floor
155
dBm/Hz
20 MHz offset from LO, all BB inputs at 0.7 V
Quadrature Error
0.5
Degree rms
CDMA IS95 setup (see Figure 38)
I/Q Amplitude Balance
0.2
dB
CDMA IS95 setup (see Figure 38)
LO Leakage
41
dBm
140 MHz
40
dBm
220 MHz
42
33
dBm
800 MHz
Sideband Rejection
33
dBc
140 MHz
48
40
dBc
220 MHz
42
34
dBc
800 MHz
Third Order Distortion
52
dBc
Second Order Distortion
60
dBc
Equivalent Output IP3
25
dBm
Equivalent Output IP2
59
dBm
Output Return Loss (S22)
20
dB
RESPONSE TO CDMA IS95
See Figure 38
BASEBAND SIGNALS
ACPR
72
dBc
EVM
1.3
%
Rho
0.9995
LO INPUT
LO Drive level
10
2
0
dBm
LOIP Input Return Loss (S11)2
5
dB
No termination on LOIP, LOIN at ac ground
9
dB
50 Ω terminating resistor, differential drive via balun
BASEBAND INPUTS
Input Bias Current
10
μA
Input Capacitance
2
pF
DC Common Level
0.6
0.7
0.8
V
Bandwidth (3 dB)
80
MHz
Full power (0.7 V ±0.3 V on each input, see Figure 4)
ENABLE
Turn-On
2.5
μs
Enable high to output within 0.5 dB of final value
Turn-Off
1.5
μs
Enable low to supply current dropping below 2 mA
ENBL High Threshold (Logic 1)
+VS/2
V
ENBL Low Threshold (Logic 0)
+VS/2
V
POWER SUPPLIES
Voltage
2.7
5.5
V
Current Active
50
65
78
mA
Current Standby
70
μA
1 For information on operation below 140 MHz, see Figure 29.
2 See the LO Interface section for more details on input matching.
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