AMIS-49250-XTD ON Semiconductor, AMIS-49250-XTD Datasheet - Page 6

• Manufacturer Part Number: AMIS-49250-XTD
• Description: IC TXRX FIELDBUS MAU 44-NQFP
• Manufacturer: ON Semiconductor
• Type: Transceiverr

Specifications of AMIS-49250-XTD

• Number Of Drivers/receivers: 1/1
• Protocol: MDS-MAU
• Voltage - Supply: 4.75 V ~ 6.2 V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Logic Type: Fieldbus Media Access Unit
• Logic Family: AMIS-492x0
• Number Of Channels Per Chip: 1
• Input Level: CMOS
• Output Level: CMOS
• Output Type: Open Drain
• High Level Output Current: 50 uA
• Low Level Output Current: 50 uA
• Supply Voltage (max): 6.2 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Polarity: Inverting/Non-Inverting
• Number Of Transmitters: 1
• Power Supply Requirement: Dual
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AMIS-49250-XTDOS

AMIS-492x0
Table 1: Pin Numbers and Signal Description
Signal Name
MDS_CTRL
N_PFAIL1
N_PFAIL2
SHSETIN
SRSETIN
FLTOUT
SHUNT
CCOUT
SHSET
SRSET
CCINM
CCINP
SGND
SRAO
SRTR
VDRV
SIGIN
VREF
VMID
VSS/
CCD
VSS
VSS
VSS
VDD
VCC
CRT
VSS
VSS
HPF
VSS
LPF
FLT
VO
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
1
2
3
4
5
6
7
8
9
I/O (Note 1)
Analog supply
Digital supply
Ground
Ground
Ground
Ground
Ground
Ground
Ground
AI/O
AI/O
AI/O
AO
AO
AO
AO
AO
AO
AO
AO
AO
AO
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
AI
Description
Connect to ground
Internal bandgap voltage (1.18V)
2V bias voltage for AC signals
Power fail alarm at VCC input. This pin is an open-drain output of negative logic.
Power fail alarm at VDD input. This pin is an open-drain output of negative logic.
Feedback (non-inverting) input for the shunt regulator
Divided voltage of VCC input. Feeding this voltage to SHSETIN pin results in 5V voltage at
VCC.
Control pin of the shunt regulator. Its sink current (25mA max) is controlled so that the voltage
at SHSETIN is equal to V
The current absorbed by SHUNT pin (25mA max) is fed to this pin, which must be connected to
the ground level
Ground
Ground
Feedback (inverting) input for the series regulator. The series regulator controls its output
(SRAO) to make this input voltage is equal to VREF (1.18V).
Divided voltage of VO output. Feeding this voltage into SRSETIN pin results in 3V at VO pin.
Output pin of an operational amplifier for the series regulator
Gate of a PMOS transistor for the series regulator
Output pin of the series regulator (20mA max)
Supply voltage input for digital block
Analog supply voltage
Current integration to limit output slew rate
Ground
Output of an operational amplifier for slew rate control. This signal can be fed to current driver.
Ground
Non-inverting input of an operational amplifier for transmission current driver
Inverting input of an operational amplifier for transmission current driver
Output of an operational amplifier for transmission current driver
For POL = VDD MDS_CTRL should = VSS
For POL = VSS MDS_CTRL can be tied to VDD or used as a not reset to control when transmit
communications will be enabled
Input pin of the band-pass filter. This pin is connected to VMID bias level with 270K resistor.
Feedback signal of high-pass filter. This pin is connected to the output of an op-amp for high
pass filter with 75K resistor.
Non-inverting input of an operational amplifier for the low-pass filter
Input pin of low-pass filter for feedback. This pin is connected to the output of the high-pass
filter through 20kΩ and the non-inverting input of the low-pass filter through 54kΩ resisters.
Output of the operational amplifier for the low-pass filter. This signal is internally connected to
non-inverting input to form a voltage-follower.
Current integration (for carrier detect circuit)
Ground
Rev. 6 | Page 6 of 22 | www.onsemi.com
REF
(1.18V).