IDT82V1671AJ IDT, Integrated Device Technology Inc, IDT82V1671AJ Datasheet - Page 42

• Manufacturer Part Number: IDT82V1671AJ
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82V1671AJ

• 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

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.