- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄298840 > ATA5744N-TKSY (ATMEL CORP) SPECIALTY TELECOM CIRCUIT, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | ATA5744N-TKSY |
| 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： | LEAD FREE, SSO-20 |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 316K |
| 代理商： | ATA5744N-TKSY |
8
4893A–RKE–11/05
ATA5744
Each BR_Range is defined by a minimum and a maximum edge-to-edge time (tee_sig). These
limits are defined in the electrical characteristics. They should not be exceeded to maintain full
sensitivity of the receiver.
4.5
Receiving Characteristics
The RF receiver ATA5744 can be operated with and without a SAW front-end filter. In a typical
automotive application, a SAW filter is used to achieve better selectivity. The selectivity with and
without a SAW front-end filter is illustrated in Figure 4-1 on page 7. Note that the mirror fre-
quency is reduced by 40 dB. The plots are printed relatively to the maximum sensitivity. If a
SAW filter is used, an insertion loss of about 4 dB must be considered.
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 ATA5744. Low-cost crystals are
specified to be within ±100 ppm. The XTO deviation of the ATA5744 is an additional deviation
due to the XTO circuit. This deviation is specified to be ±30 ppm. If a crystal of ±100 ppm is
used, the total deviation is ±130 ppm in that case. Note that the receiving bandwidth and the
IF-filter bandwidth are equivalent.
Figure 4-2.
Receiving Frequency Response
Table 4-1.
Definition of BR_Range by the Pins BR_0 and BR_1
BR_1
BR_0
BR_Range
00
0
01
1
10
2
11
2
-100.0
-80.0
-60.0
-40.0
-20.0
0.0
-6.0
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
df (MHz)
dP
(dB
)
without SAW
with SAW
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATA5756-6DPJ | SPECIALTY TELECOM CIRCUIT, PDSO10 |
| ATA6285N-PNPW | SPECIALTY TELECOM CIRCUIT, QCC32 |
| ATA6285N-PNQW | SPECIALTY TELECOM CIRCUIT, QCC32 |
| ATCB-B01-RM50 | INTERCONNECTION DEVICE |
| ATEP-161100-SMA-P-01 | INTERCONNECTION DEVICE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATA5744N-TKSY 19 | 功能描述:射頻接收器 RF DATA CONTROL RECEIVER 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 |
| ATA5745 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:UHF ASK/FSK Receiver |
| ATA5745_07 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:UHF ASK/FSK Receiver |
| ATA5745C-PXPW | 制造商:Atmel Corporation 功能描述:SWITCHABLE RX-IC FOR RKE/TPMS (433MHZ) - Tape and Reel 制造商:Atmel Corporation 功能描述:IC RX UHF ASK/FSK 433MHZ 24QFN |
| ATA5745CPXQW | 制造商:Atmel Corporation 功能描述:Switchable Rx-IC for RKE/TPMS (433MHz) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。