參數(shù)資料
型號(hào)： ATA5728P6-TKQY
廠商： ATMEL CORP
元件分類： 通信及網(wǎng)絡(luò)
英文描述： SPECIALTY TELECOM CIRCUIT, PDSO20
封裝： SSOP-20
文件頁(yè)數(shù)： 46/46頁(yè)
文件大小： 776K
代理商： ATA5728P6-TKQY
9
9106E–RKE–07/08
ATA5723/ATA5724/ATA5728
5.
Receiving Characteristics
The RF receiver ATA5723/ATA5724/ATA5728 can be operated with and without a SAW
front-end filter. In a typical automotive application, a SAW filter is used to achieve better selectiv-
ity and large signal capability. The receiving frequency response without a SAW front-end filter is
illustrated in Figure 5-1 “Narrow Band Receiving Frequency Response ATA5724”. This example
relates to ASK mode. FSK mode exhibits a similar behavior. The plots are printed relatively to
the maximum sensitivity. If a SAW filter is used, an insertion loss of about 3 dB must be consid-
ered, but the overall selectivity is much better.
When designing the system in terms of receiving bandwidth, the LO deviation must be consid-
ered as it also determines the IF center frequency. The total LO deviation is calculated, to be the
sum of the deviation of the crystal and the XTO deviation of the ATA5723/ATA5724/ATA5728.
Low-cost crystals are specified to be within ±90 ppm over tolerance, temperature, and aging.
The XTO deviation of the ATA5723/ATA5724/ATA5728 is an additional deviation due to the
XTO circuit. This deviation is specified to be ±10 ppm worst case for a crystal with CM = 7 fF. If
a crystal of ±90 ppm is used, the total deviation is ±100 ppm in that case. Note that the receiving
bandwidth and the IF-filter bandwidth are equivalent in ASK mode but not in FSK mode.
Figure 5-1.
Narrow Band Receiving Frequency Response ATA5724
10
0
-10
-20
-30
-40
-50
-60
-70
(dB)
5.5V -40
C
4.5V -40
C
5V 25
C
5.5V 25
C
4.5V 105
C
5.5V 105
C
5V 105
C
4.5V 25
C
5V -40
C
430
431
432
433
(MHz)
Image Rejection versus RF Frequency
434
435
436
437
438
相關(guān)PDF資料
PDF描述
ATC-1 Automotive Fuse; Current Rating:1A; Voltage Rating:32V; Fuse Type:Fast Acting; Body Material:Plastic; Fuse Terminals:Blade; Length:12.54mm; Series:ATC; Voltage Rating:32V; Fuse Size/Group:12.54 x 19.14 x 5.12mm RoHS Compliant: Yes
ATC-4 Automotive Fuse; Current Rating:4A; Voltage Rating:32V; Fuse Type:Fast Acting; Body Material:Plastic; Color:Pink; Fuse Terminals:Blade; Length:12.54mm; Series:ATC; Voltage Rating:32V; Fuse Size/Group:12.54 x 19.14 x 5.12mm RoHS Compliant: Yes
ATC-40 Automotive Fuse; Current Rating:40A; Voltage Rating:32V; Fuse Type:Fast Acting; Body Material:Plastic; Color:Orange; Fuse Terminals:Blade; Length:12.54mm; Series:ATC; Voltage Rating:32V; Fuse Size/Group:12.54 x 19.14 x 5.12mm RoHS Compliant: Yes
ATEP-04-0150-SMA-P-01 INTERCONNECTION DEVICE
ATEP-16-0200-SMA-P-01 INTERCONNECTION DEVICE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATA5743 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:UHF ASK/FSK Receiver
ATA5743P3-TGQY 功能描述:射頻接收器 ASK/FSK Rec.(imp.FSK sensitiv IF=300kH) 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
ATA5743P3-TGQY 19 制造商:Atmel Corporation 功能描述:ASK/FSK Rec.(impr.FSK sensitiv,IF=300kH)
ATA5743P3-TGQY 19 功能描述:射頻接收器 ASK/FSK Rec(impr.FSK SensitivIF=300kH) 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
ATA5743P3-TGSY 功能描述:射頻接收器 ASK/FSK Rec.(imp.FSK sensitiv IF=300kH) 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
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