82V1671JG8 IDT, Integrated Device Technology Inc, 82V1671JG8 Datasheet - Page 42
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82V1671JG8
Manufacturer Part Number
82V1671JG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82V1671JG8.pdf
(107 pages)
Specifications of 82V1671JG8
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
PLCC
Operating Temperature Classification
Industrial
Pin Count
28
Mounting
Surface Mount
Operating Current
95mA
Operating Supply Voltage (max)
3.465V
Operating Supply Voltage (min)
3.135V
Lead Free Status / RoHS Status
Compliant
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3.9.4.3
over a preset period. The accumulation period (count number) is
programmable from 0 to 255.875 ms in steps of 0.125 ms, by the bits
LM_CN[10:0] in registers GREG15 and GREG16. The integrator can be
configured to run once or continuously by the LM_ONCE bit in GREG16:
(LM_EN = 1). Once the integration is finished, the LM_OK bit will be set
to 1 and will not be reset until the LM_EN bit is set to 0. To start a new
RSLIC & CODEC CHIPSET
An integrator is used to accumulate and sum up the signal values
LM_ONCE = 0: integrator runs continuously;
LM_ONCE = 1: integrator runs once.
In continuous mode, the integrator starts to accumulate the samples
In single mode, the integrator works only once after each initiation
Level Meter Integrator
GREG16: LM_EN
LREG21: LM_OK
GREG16: LM_ONCE = 0
Figure - 23 Single Measurement Sequence (AC & DC Level Meter)
LREG21: LM_OK
GREG16: LM_EN
GREG16: LM_ONCE = 1
Figure - 22 Continuous Measurement Sequence (AC & DC Level Meter)
Int. Period
Int. Period
GREG17 & GREG18
(GREG17 & GREG18)
Read Result
Read Result
125µs
Int. Period
42
after the LM_EN bit in register GREG16 is set to 1. When the count
number is reached, which means that once integration is finished, the
LM_OK bit in LREG21 will be set to 1 and an interrupt will be generated.
The next integration starts right after the previous integration is finished,
and the LM_OK bit will be automatically reset after 125 µs. The
integrator runs continuously in this way and will not stop unless the
LM_EN bit is set to 0.
sequence.
integration, the LM_EN bit must be changed from 0 to 1. The single
measurement sequence is illustrated in
GREG17 & GREG18
125µs
Read Result
Start New Measurement
Int. Period
Figure - 22
GREG17 & GREG18
Int. Period
IDT82V1671/IDT82V1671A, IDT82V1074
125µs
Int. Period
Read Result
shows the continuous measurement
Figure -
23.
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