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參數(shù)資料
| 型號： | LT5503 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 1.2GHz to 2.7GHz Direct IQ Modulator and Mixer |
| 中文描述： | 1.2GHz至2.7GHz的直接IQ調(diào)制器和調(diào)音臺 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 210K |
| 代理商： | LT5503 |
LT5503
1
MODOUT
VGA
0
°
90
°
÷
2
÷
1
CONTROL
LOGIC
GC1
GC2
GND
MX
–
MX
+
LO2
2.45GHz
BPF
V
CC1
2V
V
CC2
2.45GHz
MODULATED
RFOUT
BI
+
BI
–
BQ
+
BQ
–
V
CC
MOD
V
CC
RF
V
CC
LO1
V
CC
LO2
MIXEN
MODIN
V
CC
VGA
LO1
LO1IN (2075MHz)
LO2IN
(750MHz)
DMODE
MODEN
MIXER
ENABLE
MODULATOR
ENABLE
5503 F01
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Final Electrical Specifications
I
IEEE 802.11 DSSS and FHSS
I
High Speed Wireless LAN (WLAN)
I
Wireless Local Loop (WLL)
I
PCS Wireless Data
I
MMDS
, LTC and LT are registered trademarks of Linear Technology Corporation.
*Patent Pending
I
Single 1.8V to 5.25V Supply
I
Direct IQ Modulator with Integrated 90
°
Phase
Shifter*
I
Four Step RF Power Control
I
120MHz Modulation Bandwidth
I
Independent Double-Balanced Mixer
I
Modulation Accuracy Insensitive to Carrier Input
Power
I
Modulator I/Q Inputs Internally Biased
APPLICATIOU
FEATURES
TYPICAL APPLICATIO
U
1.2GHz to 2.7GHz Direct
IQ Modulator and Mixer
October 2001
The LT
5503 is a front-end transmitter IC designed for low
voltage operation, and is compatible with the LTC family of
WLAN products. The IC contains a high frequency quadra-
ture modulator with a variable gain amplifier (VGA) and a
balanced mixer. The modulator includes a precision 90
°
phase shifter which allows direct modulation of an RF
signal by the baseband I and Q signals.
In a superheterodyne system, the mixer can be used to
generate the high-frequency RF input for the modulator by
mixing the system’s 1st and 2nd local oscillators.
The LT5503 modulator output delivers –3dBm at 2.5GHz.
The VGA allows output power reduction in three steps up
to 13dB with digital control. The baseband inputs are
internally biased for maximum input voltage swing at low
supply voltage. If needed, they can be driven with external
bias voltages.
DESCRIPTIO
U
Figure 1. 2.45GHz Transmitter Application, Carrier for Modulator Generated by Upmixer
SUPPLY VOLTAGE (V)
1.8
O
–2
–3
–4
–5
–6
2.4
3.0
3.6
4.2
5503 TA01b
4.8
5.4
P
LO1
= –12dBm
P
= –18dBm
BASEBAND = 1V
P-P
T
A
= 27
°
C
2.45GHz Modulated Output
Power vs Supply Voltage
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT5503_09 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.2GHz to 2.7GHz Direct IQ Modulator and Mixer |
| LT5503EFE | 功能描述:IC DIRECT IQ MOD/MIXER 20-TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| LT5503EFE#PBF | 功能描述:IC DIRECT IQ MOD/MIXER 20-TSSOP RoHS:是 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| LT5503EFE#TR | 功能描述:IC DIRECT IQ MOD/MIXER 20-TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
| LT5503EFE#TRPBF | 功能描述:IC DIRECT IQ MOD/MIXER 20-TSSOP RoHS:是 類別:RF/IF 和 RFID >> RF 調(diào)制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:調(diào)制器 LO 頻率:700MHz ~ 2.3GHz RF 頻率:700MHz ~ 2.3GHz P1dB:1dBm 底噪:-148dBm/Hz 輸出功率:-1dBm 電流 - 電源:46mA 電源電壓:2.7 V ~ 3.6 V 測試頻率:1.75GHz 封裝/外殼:28-WFQFN 裸露焊盤 包裝:帶卷 (TR) |
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