参数资料
型号: AMIS49587C5871RG
厂商: ON Semiconductor
文件页数: 54/55页
文件大小: 0K
描述: IC MODEM PLC 50/60MHZ 28PLCC
标准包装: 750
波特率: 可选
电源电压: 3 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 28-LCC(J 形引线)
供应商设备封装: 28-PLCC(11.51x11.51)
包装: 带卷 (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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