參數(shù)資料
型號(hào)： AMIS49587C5872RG
廠商： ON Semiconductor
文件頁(yè)數(shù)： 54/55頁(yè)
文件大?。?/td> 0K
描述： IC MODEM PLC 50/60MHZ 52QFN
標(biāo)準(zhǔn)包裝： 2,500
波特率： 可選
電源電壓： 3 V ~ 3.6 V
安裝類型： 表面貼裝
封裝/外殼： 52-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 52-QFN（8x8）
包裝： 帶卷 (TR)
AMIS49587
http://onsemi.com
8
Figure 4. Recommended Layout of the Placement of Decoupling Capacitors for PLCC28
8
9
10
7
6
5
12 13 14
17 18
22
21
20
19
23
24
25
3 2
27 26
VSSA
VDDA
28
1
16
15
4
REF_OUT
C
CDA
CDD
GROUND
3,3V SUPPLY
VDD
VSS
11
DREF
RX_OUT
RX_OUT is the output analog pin of the receiver low noise input opamp. This opamp is in a negative feedback configuration.
RX_IN
RX_IN is the positive analog input pin of the receiver low noise input opamp. Together with RX_OUT and REF_OUT, an
active high pass filter is realized. This filter removes the main frequency (50 or 60 Hz) from the received signal. The filter
characteristics are determined by external capacitors and resistors. A typical application schematic can be found in paragraph
50/60 Hz suppression filter.
M50Hz_IN
M50HZ_IN is the mains frequency analog input pin. The signal is used to detect the zero crossing of the 50 or 60 Hz sine wave.
This information is used, after filtering with the internal PLL, to synchronize frames with the mains frequency. In case of direct
connection to the mains it is advised to use a series resistor of 1 M
W in combination with two external clamp diodes in order
to limit the current flowing through the internal protection diodes.
RX_DATA
RX_DATA is a 5 V compliant open drain output. An external pullup resistor defines the logic high level as illustrated in
Figure 5. A typical value for the pullup resistance “R” is 10 k
W. The signal on this output depends on the status of the data
reception. If AMIS49587 waits for configuration RX_DATA outputs a pulse train with a 10 Hz frequency. After
Synchronization Confirm Time out RX_DATA = 0. If AMIS49587 is searching for synchronization RX_DATA = 1.
VSSD
+5V
Output
R
Figure 5. Representation of 5V Safe Output
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