AMIS49587C5871RG ON Semiconductor, AMIS49587C5871RG Datasheet - Page 16

• Manufacturer Part Number: AMIS49587C5871RG
• Description: IC MODEM PLC 50/60MHZ 28PLCC
• Manufacturer: ON Semiconductor

Specifications of AMIS49587C5871RG

• Baud Rates: Selectable
• Interface: SCI
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Number Of Transmitters: 1
• Power Supply Requirement: Single
• Package Type: PLCC
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 28
• Operating Temperature (max): 70C
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Lead Free Status / Rohs Status: Compliant

noise input op−amp. Together with the output RX_OUT an
active high pass filter is realized. This filter removes the
main frequency (50 Hz or 60 Hz) from the received signal.
The filter characteristics are determined by external
capacitors and resistors. Typical values are given in
Table 23. For these values and after this filter, a typical
voltage reference used by the A/D converter. This pin must
be decoupled from the analog ground by a 1 mF ceramic
capacitance (C
powered down by setting the bit R_RX_MOD[7] to 1. In this
mode the pin RX_OUT must be used as input of the AGC.
RX_IN is the positive analog input pin of the receiver low
REF_OUT is the analog output pin which provides the
The low noise operational amplifier can be bypassed and
Received
Signal
DREF
). It is not allowed to load this pin.
Figure 10. External Component Connection for 50/60 Hz Suppression Filter
C
2
Figure 11. Transfer Function of 50 Hz Suppression Circuit
C
V
DREF
SSA
R
C
2
1
R
1
REF_OUT
RX_OUT
RX_IN
2
4
3
http://onsemi.com
LOW NOISE
16
OPAMP
1, 65 V
attenuation of 80 dB at 50 Hz is obtained. Figure 9
represents external components connection. In a typical
application the coupling transformer in combination with a
parallel capacitance forms a high pass filter with a typical
attenuation of 60 dB. The combined effect of the two filters
decreases the voltage level of 230 Vrms at the mains
frequency well below the sensitivity of the AMIS−49587.
ground of REF_OUT
Table 23. VALUE OF THE RESISTORS AND
CAPACITORS
The analog part of AMIS−49587 works with an analog
REF
Component
TO AGC
Receiver (S− FSK Demodulator)
C
DREF
C
C
R
R
1
2
1
2
Value
1.5
1.5
22
11
1
Unit
kW
kW
nF
nF
mF