82V1074PFG IDT, Integrated Device Technology Inc, 82V1074PFG Datasheet - Page 87

• Manufacturer Part Number: 82V1074PFG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82V1074PFG

• Number Of Channels: 4
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TQFP
• Operating Temperature Classification: Industrial
• Pin Count: 100
• Mounting: Surface Mount
• Operating Current: 95mA
• Operating Supply Voltage (max): 3.465V
• Operating Supply Voltage (min): 3.135V
• Lead Free Status / RoHS Status: Compliant

6
6.1
parameter. For large and remotely fed systems, this parameter is more
critical and must be limited to a given value to meet cooling
requirements and save power.
high-voltage part. The most effective power-saving method is to limit
SLIC functionality and reduce supply voltage in line according to
different requirements. The RSLIC-CODEC chipset achieves this goal
by providing different operating modes according to different loop states
or testing requirements. See the following descriptions for details.
RSLIC & CODEC CHIPSET
In many applications, the system power consumption is an important
Generally, the system power dissipation is determined mainly by the
OPERATIONAL DESCRIPTION
OPERATING MODES
RSLIC 2
RSLIC 3
RSLIC 4
RSLIC 1
M1~M3
M1~M3
M1~M3
M1~M3
#
#
#
#
CS
CS
CS
CS
CS
Figure - 38 RSLIC Mode Control Signaling
87
6.1.1
and four individual chip selection pins CS1 to CS4 for the four RSLICs to
control their operating modes. See
illustrated in the following:
determined by the active CSn as described above.
the RSLIC control timing diagram.
The CODEC provides three common mode selection pins M1 to M3
The CS1 to CS4 pins of the CODEC are ternary logic pins as
CSn = 0:
CSn = 1:
CSn = 1.5 V: The CODEC will not send or receive data to/from the
Note that the M3 pin of the CODEC is bidirectional. Its direction is
RSLIC CONTROL SIGNALING
The CODEC will send mode control data to the RSLICn
through the M1 to M3 pins.
The CODEC will receive the temperature information of
the RSLICn through the M3 pin.
RSLICn through the M1 to M3 pins.
CS1
CS2
CS3
CS4
M1~M3
IDT82V1671/IDT82V1671A, IDT82V1074
CODEC
Figure - 38
for details.
Figure - 39
shows