SI3232PPT0-EVB Silicon Laboratories Inc, SI3232PPT0-EVB Datasheet - Page 33
SI3232PPT0-EVB
Manufacturer Part Number
SI3232PPT0-EVB
Description
BOARD EVAL W/SI3200 INTERFACE
Manufacturer
Silicon Laboratories Inc
Series
ProSLIC®r
Datasheet
1.SI3232-FQ.pdf
(128 pages)
Specifications of SI3232PPT0-EVB
Main Purpose
Interface, Analog Front End (AFE)
Utilized Ic / Part
Si3232
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Loop Closure Interrupt Pending
Loop Closure Interrupt Enable
Linefeed Shadow
Loop Closure Detect Status
Loop Closure Detect Debounce
Interval
Loop Current Sense
Loop Closure Threshold (on-hook to
off-hook)
Loop Closure Threshold (off-hook to
on-hook)
Loop Closure Filter Coefficient
Loop Closure Mask Interval
Notes:
I
I
I
I
Q2
Q5
Q6
Q1
1. I
2. The usable range for LCRONHK and LCROFFHK is limited to 61 mA. Entering a value >61 mA disables threshold
500 µA.
detection.
LOOP
Parameter
is a calculated value based on measured I
CMH
Processor
Table 19. Register and RAM Locations used for Loop Closure Detection
Signal
Input
LFS
I
LOOP
Figure 14. Loop Closure Detection Circuitry
LCRLPF
Digital
LPF
Mnemonic
LCROFFHK
LCROFFHK
LINEFEED
LCRONHK
Register/
LCRMASK
IRQVEC2
LCRRTP
LCRLPF
IRQEN2
LCRDBI
ILOOP
RAM
Loop Closure
Threshold
Preliminary Rev. 0.96
LCRONHK
–
+
Q1
LCROFFHK[15:0]
Register/RAM
LCRONHK[15:0]
LCRMASK[15:0]
–I
LCRLPF[15:3]
LCRDBI[15:0]
ILOOP[15:0]
Q4
LFS[2:0]
LOOPS
LOOPE
currents. The resulting effective resolution is approximately
Bits
LCR
LCRMASK
Closure
Mask
Loop
Programmable
0 to 101.09 mA
0 to 101.09 mA
0 to 101.09 mA
Debounce
Monitor only
Monitor only
0 to 40.96 s
0 to 40.96 s
0 to 4000h
LCRDBI
Filter
Range
Yes/No
Yes/No
2
2
3.097 µA
3.097 µA
3.097 µA
1.25 ms
1.25 ms
LCR
Interrupt
LOOPE
LSB
Size
Logic
N/A
N/A
N/A
N/A
N/A
Si3232
Resolution
396.4 µA
396.4 µA
500 µA
1.25 ms
1.25 ms
N/A
N/A
N/A
N/A
N/A
LOOPS
1
33
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