AMIS49587C5871G ON Semiconductor, AMIS49587C5871G Datasheet - Page 24

• Manufacturer Part Number: AMIS49587C5871G
• Description: IC MODEM PLC 50/60MHZ 28PLCC
• Manufacturer: ON Semiconductor

Specifications of AMIS49587C5871G

• Baud Rates: Selectable
• Interface: SCI
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -

output level is fixed to the programmed level in the register
R_ALC_CTRL[2:0].
WriteConfigRequest.
analogue
AMIS- -49587 to external circuitry working with another
ground one must make sure to place a decoupling capacitor.
Table 25. FIXED TRANSMITTER OUTPUT
ATTENUATION
Remark: The analog part of AMIS- -49587 works with an
ALC_CTRL[2:0]
ground
000
001
010
011
100
101
110
111
FROM
ANALOG
TO
GAIN
Figure 20. Digital Path of the Receiver ADC and Quadrature Demodulation
Shaper
REF_OUT
Noise
REF_OUT.
RX_OUT
RX_IN
See
Receiver (Digital Path)
Decimator
Control
AGC
1
st
also
When
Attenuation
LOW NOISE
Figure 19. Analog Path of the Receiver
--12 dB
--15 dB
--18 dB
--21 dB
1.65 V
--3 dB
--6 dB
--9 dB
0 dB
OPAMP
Compen--
value
sator
accu
Abs
connecting
paragraph.
http://onsemi.com
Gain
24
FROM TRANSMITTER
f
f
MQ
f
f
SQ
6.3
6.3.1 Receiver Block Diagram
coupler, conditions it and demodulates it in a data- -stream to
the communication controller. The operation mode and the
baud rate are made according to the setting in R_CONF,
R_FS and R_FM. The receive signal is applied first to a high
pass filter. Therefore AMIS- -49587 has a low noise
operational amplifier at the input stage which can be used to
make a high pass active filter to attenuate the mains
frequency. This high pass filter output is followed by a gain
stage which is used in an automatic gain control loop. This
block also performs a single ended input to differential
output conversion. This gain stage is followed by a
continuous time low pass filter to limit the bandwidth. A 4
order sigma delta converter converts the analog signal to
digital samples. A quadrature demodulation for f
than performed by the ARM micro, as well the handling of
the bits and the frames.
MI
SI
The receiver takes in the analog signal from the line
LPF
RECEIVER PATH DESCRIPTION
f
MQ
f
SI
Decimator
Decimator
Decimator
Decimator
f
Receiver (Analog Path)
SQ
2
2
2
2
nd
nd
nd
nd
ΣΔ AD
Order
REF
4th
Q
Q
I
I
M
S
M
S
Quadrature Demodulator
Sliding
Sliding
Sliding
Sliding
Filter
Filter
Filter
Filter
FROM
DIGITAL
TO
DIGITAL
SOFTWARE
f
f
M
S
S
and f
M
is
th