AMIS-49200 Datasheet, PDF (2/19 Pages) AMI SEMICONDUCTOR – Fieldbus MAU Chip

Block Diagram
AMIS−49200
Receive Block
RXS
35
Zero-cross
Detector
34 ^RXA
CCD
32
Carrier
Detector
Transmit Block
MDS_CTRL
26
38 ^POL
TXE
36
TXS
37
MDS
Interface
VSS
1
41 ^VSS
VSS
42
VSS
43
33
VSS
31
30
FLTOUT FLT
Bandpass Filter
HPF
28
SIGIN
27
LPF
29
Tri-level Modulator
&
Slew Control
Current
Driver
VDRV ₂₁
CRT
19
VSS ₂₀
VSS ₂₂
CCINP ₂₃
CCINM ₂₄
CCOUT ₂₅
39 ^VSS
VSS
40
VCC
44
VCC
18
VDD
17
Power Supply Block _VCC
VCC
Basic
Circuitry
VCC
Bandgap
Vmid
Reference
Vmid
3
Vmid
Vref
2
Vref
VCC
VO
16
SRSET
Series
Regulator
Low Voltage
Detectors
Shunt
Regulator
8
13
VSS
VSS
SRSETIN
11 15 14 12
54
6
7
9 10
Figure 1. AMIS−49200 Fieldbus MAU Block Diagram
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