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MAX7033_11

更新时间： 2024-09-16 11:15:03
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美信 - MAXIM /
页数 文件大小 规格书
15页 210K
描述
315MHz/433MHz ASK Superheterodyne Receiver with AGC Lock

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19-3273; Rev 2; 1/11  
315MHz/433MHz ASK Superheterodyne  
Receiver with AGC Lock  
MAX703  
General Description  
Features  
o Optimized for 315MHz or 433MHz Band  
The MAX7033 fully integrated low-power CMOS super-  
heterodyne receiver is ideal for receiving amplitude-  
shift-keyed (ASK) data in the 300MHz to 450MHz  
frequency range. The receiver has an RF input signal  
range of -114dBm to 0dBm. With few external compo-  
nents and a low-current power-down mode, it is ideal  
for cost-sensitive and power-sensitive applications typi-  
cal in the automotive and consumer markets. The  
MAX7033 consists of a low-noise amplifier (LNA), a fully  
differential image-rejection mixer, an on-chip phase-  
locked loop (PLL) with integrated voltage-controlled  
oscillator (VCO), a 10.7MHz IF limiting amplifier stage  
with received-signal-strength indicator (RSSI), and ana-  
log baseband data-recovery circuitry. The MAX7033  
also has a discrete one-step automatic gain control  
(AGC) that reduces the LNA gain by 35dB when the RF  
input signal exceeds -62dBm. The AGC circuitry offers  
an externally controlled hold feature.  
o Operates from Single +3.3V or +5.0V Supplies  
o High Dynamic Range with On-Chip AGC  
o AGC Hold Circuit  
o 1ms AGC Release Time  
o Selectable Image-Rejection Center Frequency  
o Selectable x64 or x32 fLO/fXTAL Ratio  
o Low 5.2mA Operating Supply Current  
o < 3.5µA Low-Current Power-Down Mode for  
Efficient Power Cycling  
o 250µs Startup Time  
o Built-In 44dB RF Image Rejection  
o Better than -114dBm Receive Sensitivity  
o -40°C to +105°C Operation  
The MAX7033 is available in 28-pin TSSOP and  
32-pin TQFN packages and is specified over the  
extended (-40°C to +105°C) temperature range.  
Applications  
Ordering Information  
Automotive Remote  
Keyless Entry  
Home Automation  
Remote Controls  
Local Telemetry  
Wireless Sensors  
PART  
TEMP RANGE  
-40°C to +105°C  
-40°C to +105°C  
PIN-PACKAGE  
28 TSSOP  
MAX7033EUI+  
MAX7033ETJ+  
Security Systems  
32 TQFN-EP*  
Garage Door Openers  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
Typical Application Circuit appears at end of data sheet.  
Pin Configurations  
TOP VIEW  
+
XTAL1  
AVDD  
1
2
3
4
5
6
7
8
9
28 XTAL2  
27 SHDN  
LNAIN  
26 PDOUT  
25 DATAOUT  
LNASRC  
AGND  
+
N.C.  
AGND  
1
2
3
4
5
6
7
8
24 DATAOUT  
23  
24  
V
DD5  
V
DD5  
MAX7033  
LNAOUT  
AVDD  
23 DSP  
22 DFFB  
21 OPP  
20 DSN  
19 DFO  
18 IFIN2  
17 IFIN1  
16 XTALSEL  
15 AC  
LNAOUT  
AVDD  
22 DSP  
21 N.C.  
20 DFFB  
19 OPP  
18 DSN  
17 DFO  
MAX7033  
MIXIN1  
MIXIN2  
MIXIN1  
MIXIN2  
AGND  
AGND 10  
IRSEL 11  
IRSEL  
MIXOUT 12  
DGND 13  
DVDD 14  
TSSOP  
TQFN  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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