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MAX2370 PDF预览

MAX2370

更新时间: 2024-11-19 05:00:23
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19页 372K
描述
Complete 450MHz Quadrature Transmitter

MAX2370 数据手册

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19-0222; Rev 0; 5/05  
Complete 450MHz Quadrature Transmitter  
General Description  
Features  
The MAX2370 integrated quadrature transmitter is  
designed for 450MHz applications. The device takes a  
differential I/Q baseband input and converts it up to  
intermediate frequency (IF) through a quadrature modu-  
lator and IF variable-gain amplifier (VGA). The signal is  
then routed to an external IF filter and upconverted to RF  
through an image-reject mixer and RF VGA. The signal  
is further amplified with an on-chip power amplifier (PA)  
driver. An IF synthesizer, an RF synthesizer, a local  
oscillator buffer, and an SPI™/QSPI™/MICROWIRE™-  
compatible, 3-wire programmable bus complete the  
basic functional blocks of this IC.  
450MHz Operating Frequency  
+8dBm Output Power  
-64dBc Typical ACPR at ±885ꢀHz Oꢁꢁfet  
-66dBc Typical ACPR at ±±1±ꢂ5MHz Oꢁꢁfet  
±00dB Power-Control Range  
Dual Synthefizer ꢁor RF and IF Local Ofcillatorf  
SPI/QSPI/MICROWIRE-Compatible 3-Wire  
Interꢁace Buf  
Single-Sideband Upconverter  
The MAX2370 is available in a 48-pin TQFN package  
with exposed paddle and is specified for the extended  
temperature range (-40°C to +85°C).  
Directly Drivef External Power Ampliꢁier  
Applications  
Ordering Information  
450MHz CDMA/WCDMA Phones  
PKG  
CODE  
PART  
TEMP RANGE PIN-PACKAGE  
OFDM, cdma2000®, WCDMA, NMT  
Wireless Data Links  
48 Thin QFN-EP*  
-40°C to +85°C  
MAX2370ETM  
T4877-3  
(7mm x 7mm)  
48 Thin QFN-EP*  
(7mm x 7mm)  
MAX2370ETM+ -40°C to +85°C  
T4877+3  
*EP = Exposed paddle.  
+Denotes lead-free package.  
Pin Configuration/  
Functional Diagram  
SPI and QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corp.  
cdma2000 is a registered trademark of Telecommunications  
Industry Association.  
TOP VIEW  
36  
1
2
RFOUT  
N.C.  
REF  
RF PLL  
IF PLL  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
N.C.  
3
LOCK  
N.C.  
Σ
4
V
N.C.  
CCDRV  
IDLE  
0°  
90°  
MAX2370  
5
N.C.  
V
6
TANK+  
TANK-  
IFLO  
CC  
EP  
+45  
-45  
7
TXGATE  
IFIN+  
IFIN-  
N.C.  
8
9
V
CC  
10  
11  
12  
SHDN  
I-  
0°  
Σ
/2  
SPI  
INTERFACE  
N.C.  
90°  
I+  
RBIAS  
________________________________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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