- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384658 > MAX2720EUP (MAXIM INTEGRATED PRODUCTS INC) 1.7GHz to 2.5GHz, Direct I/Q Modulator with VGA and PA Driver PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX2720EUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 衰減器 |
| 英文描述： | 1.7GHz to 2.5GHz, Direct I/Q Modulator with VGA and PA Driver |
| 中文描述： | 1700 MHz - 2100 MHz RF/MICROWAVE UP CONVERTER, -6 dBm OUTPUT POWER-MAX |
| 封裝： | TSSOP-20 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大?。?/td> | 319K |
| 代理商： | MAX2720EUP |
M
1.7GHz to 2.5GHz, Direct I/Q Modulator with
VGA and PA Driver
______________________________________________________________________________________
17
Detailed Description
The MAX2720/MAX2721 upconvert in-phase (I) and
quadrature (Q) baseband signals directly to RF
frequencies of 1700MHz to 2100MHz (MAX2720) or
2100MHz to 2500MHz (MAX2721). They are designed
for wideband-CDMA and WLL systems where direct I/Q
modulation of the RF carrier reduces system cost, com-
ponent count, and board space compared to
dual-conversion architectures.
Internally, the MAX2720/MAX2721 include an I/Q mod-
ulator, a variable gain amplifier (VGA), and a PA driver.
Separate modulator output and PA driver input ports
allow insertion of a bandpass filter between the modulator
and PA driver for increased noise rejection. Disable the
stand-alone PA driver to reduce current consumption.
A low-power shutdown mode further reduces current
consumption to less than 0.1μA. Additionally, a logic-
level control disables or enables an internal frequency
doubler that allows the external LO to run at full or half
frequency.
NAME
FUNCTION
1, 5, 10, 19, EP
GND
Ground. Connect to ground plane with lowest inductance path. Solder exposed paddle
evenly to the board ground plane.
2
DROUT
PA Driver Open-Collector Output Port. Requires an external matching network and a pull-
up inductor to V
CC
for proper biasing. See
Typical Application Circuit
for recommended
component values.
PIN
3
SHDN
Shutdown Control Input. Drive with a logic-level high to enable the device. Drive with a logic-
level low to disable the device. Bypass with a 1000pF capacitor to ground, as close to the
pin as possible to minimize the amount of external noise coupled onto the control line.
4, 6, 9, 12, 15
V
CC
Supply Voltage Input. Bypass to ground with the specified capacitor as close to the pin as
possible. (See
Typical Application Circuit
.)
16
ENX2
Logic-Level Enable Input for LO Doubler. Drive with a logic-level low to enable the doubler,
allowing the external LO to run at half-frequency, f
LO
= f
OUT
/ 2. Drive with a logic-level
high to disable the doubler, and allow the external LO to run at full-frequency, f
LO
= f
OUT
.
Bypass with a 1000pF capacitor to ground as close to the pin as possible to minimize
noise coupled into the control line.
13, 14
Q+, Q-
Quadrature Differential Input Ports. Requires DC-blocking capacitors. See
Typical Application
Circuit
for recommended component values.
11
LO
Local Oscillator input. Internally matched to 50
over the operating frequency band.
Requires a DC-blocking capacitor. See
Typical Application Circuit
for recommended com-
ponent values.
7, 8
I-, I+
In-Phase Differential Input Ports. Requires DC-blocking capacitors. See
Typical Application
Circuit
for recommended component values.
20
DRIN
PA Driver Amplifier Input Port. Requires an external matching network and a DC-blocking
capacitor that can be part of the matching network. See
Typical Application Circuit
for rec-
ommended component values. Connect to ground to disable the PA Driver and reduce
supply current.
18
PC
Modulator Power Control Input. Apply a voltage between 0.5V to 2.5V to vary the output
power of the I/Q modulator over a 30dB range. Bypass with a 1000pF capacitor to ground
as close to the pin as possible to minimize noise on the control line.
17
MODOUT
Modulator Open-Collector Output Port. Requires an external matching network and a pull-
up inductor to V
CC
for proper biasing. See
Typical Application Circuit
for recommended
component values.
Pin Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2720 | 1.7GHz to 2.5GHz, Direct I/Q Modulator with VGA and PA Driver |
| MAX2720-MAX2721 | 1.7GHz to 2.5GHz, Direct I/Q Modulator with VGA and PA Driver |
| MAX281BEPA | Zero-Error, Bessel Lowpass Filter |
| MAX281AEPA | Zero-Error, Bessel Lowpass Filter |
| MAX281AEWE | Circular Connector; No. of Contacts:8; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:13-8 RoHS Compliant: No |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2720EUP+ | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2720EUP+T | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2720EUP-T | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2720EVKIT | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2721EUP | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。