SI3232-BQ Silicon Laboratories Inc, SI3232-BQ Datasheet - Page 34

• Manufacturer Part Number: SI3232-BQ
• Description: IC SLIC PROG DUAL-CH 64TQFP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3232-BQ

• Package / Case: *
• Function: Subscriber Line Interface Concept (SLIC)
• Interface: ISDN
• Number Of Circuits: 2
• Voltage - Supply: 3.13 V ~ 3.47 V
• Current - Supply: 28mA
• Power (watts): 280mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Product: SLIC
• Supply Voltage (min): 3.13 V
• Supply Current: 28 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Ground Key Interrupt Pending
Ground Key Interrupt Enable
Linefeed Shadow
Ground Key Detect Status
Ground Key Detect Debounce Interval
Longitudinal Current Sense
Ground Key Threshold (high)
Ground Key Threshold (low)
Ground Key Filter Coefficient
*Note: The usable range for LONGHITH and LONGLOTH is limited to 16 mA. Setting a value >16 mA will disable threshold
Si3232
34
ILONG
detection
Parameter
Processor
Table 20. Register and RAM Locations used for Ground Key Detection
Signal
Input
LFS
Figure 15. Ground Key Detection Circuitry
LONGLPF
Register/RAM
Digital
LONGLOTH
LPF
LONGHITH
Mnemonic
LINEFEED
LONGLPF
IRQVEC2
LONGDBI
LCRRTP
IRQEN2
ILONG
LONGHITH
Loop Closure
Preliminary Rev. 0.95
Threshold
LONGLOTH
LONGLOTH[15:0]
LONGHITH[15:0]
LONGLPF[15:3]
–
LONGDBI[15:0]
+
Register/RAM
ILONG[15:0]
LFS[2:0]
LONGHI
LONGS
LONGE
Bits
Debounce
LONGDBI
Filter
0 to 101.09 mA
0 to 101.09 mA
Programmable
Monitor only
Monitor only
Monitor only
0 to 40.96 s
0 to 4000h
Yes/No
Yes/No
Range
LONGHI
*
*
Interrupt
LONGE
Logic
3.097 µA
3.097 µA
1.25 ms
LSB
Size
N/A
N/A
N/A
N/A
N/A
Resolution
396.4 µA
396.4 µA
Table 14
1.25 ms
LONGS
See
N/A
N/A
N/A
N/A
N/A