SI3200-FS Silicon Laboratories Inc, SI3200-FS Datasheet - Page 45

• Manufacturer Part Number: SI3200-FS
• Description: IC LINEFEED INTRFC 100V 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3200-FS

• Package / Case: 16-SOIC (3.9mm Width)
• Function: Subscriber Line Interface Concept (SLIC), CODEC
• Interface: GCI, PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 110µA
• Power (watts): 941mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Product: SLIC
• Supply Voltage (min): 3.13 V
• Supply Current: 0.11 mA, 8.8 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Parameter
Ground Key Interrupt
Pending
Ground Key Interrupt
Enable
Ground Key Linefeed
Shadow
Ground Key Detect Status
Ground Key Detect
Debounce Interval
Longitudinal Current Sense
Ground Key Threshold
(enabled)
Ground Key Threshold
(released)
Ground Key Filter Coeffi-
cient
*Note: The usable range for LONGHITH and LONGLOTH is limited to 16 mA. Setting a value > 16 mA will disable
I
I
I
I
Q2
Q5
Q6
Q1
threshold detection.
Table 27. Register and RAM Locations Used for Ground Key Detection
Processor
Signal
Input
LFS
I
LONG
Mnemonics
LONGLOTH
Figure 22. Ground Key Detection Circuitry
LONGHITH
LINEFEED
LONGLPF
LONGDBI
IRQVEC2
Register/
LCRRTP
IRQEN2
ILONG
RAM
LONGLPF
Digital
LPF
LONGHITH
Ground Key
LONGLPF[15:3]
LONGDBI[15:0]
Threshold
Register/RAM
GLOTH[15:0]
ILONG[15:0]
HITH[15:0]
LFS[2:0]
LONGHI
LONGS
LONGE
LONG-
LON-
Rev. 1.0
Bits
LONGLOTH
–
+
Programmable
Monitor only
Monitor only
Monitor only
0 to 40.96 s
101.09 mA*
101.09 mA*
0 to 4000h
Debounce
LONGDBI
Yes/No
Yes/No
Range
Filter
0 to
0 to
Si3220/Si3225
3.097 µ A
3.097 µ A
1.25 ms
LSB
Size
N/A
N/A
N/A
N/A
N/A
LONGHI
Interrupt
LONGE
Logic
See Table 20
Resolution
396.4 µ A
396.4 µ A
1.25 ms
N/A
N/A
N/A
N/A
N/A
LONGS
45