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參數資料
| 型號： | 1245-TYPE |
| 英文描述： | Uncooled Laser Transmitter |
| 中文描述： | 非致冷激光發射器 |
| 文件頁數： | 12/12頁 |
| 文件大小： | 199K |
| 代理商： | 1245-TYPE |
Data Sheet
W3011
September 1999
1 GHz Quadrature Modulator
Lucent Technologies Inc.
9
Characteristic Curves
Conditions unless otherwise noted: VCC = 2.7; TA = 25
°C ± 3 °C; LOH = 755 MHz @ –12.5 dBm, LOL = 185
MHz @ –12.5 dBm; I/Q= 0.8 Vp-p
π/4 – DQPSK; α = 0.5 (random data); I/Q Vcm = 1.22 Vdc; LC filter = 10
nH//2.2 pF; RFOUT = 940 MHz.
APC VOLTAGE (V)
RFOUT
(dBm)
VCC = 2.7
VCC = 3.0
VCC = 3.3
–70
–60
–50
–40
–30
–20
–10
0
10
0.5
1.0
1.5
2.0
2.5
3.0
Figure 7. Output Power vs. APC and Supply
Voltage
–80
–70
–60
–50
–40
–30
–20
–10
0
10
0.5
1.0
1.5
2.0
2.5
3.0
APC VOLTAGE (V)
RFOUT
(dBm)
25 °C
–20 °C
85 °C
Figure 8. Output Power vs. APC Voltage and
Temperature
30
35
40
45
50
55
60
–70
–60 –50 –40
–30
–20
–10
0
10
RF OUTPUT (dBm)
SUPPLY
CURRENT
(mA)
VCC = 2.7
VCC = 3.0
VCC = 3.3
Figure 9. Supply Current vs. Output Power
0
5
10
15
20
25
30
35
40
45
50
–60
–50
–40
–30
–20
–10
0
10
OUTPUT POWER (dBm)
CARRIER
SUPPRESSION
(dB)
LO = –15 dBm
LO = –10 dBm
LO = –5 dBm
Figure 10. Carrier Suppression vs. Output
Power and LO Level
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