SI3220-KQ Silicon Laboratories Inc, SI3220-KQ Datasheet - Page 49

• Manufacturer Part Number: SI3220-KQ
• Description: IC SLIC/CODEC DUAL-CH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3220-KQ

• Package / Case: *
• Function: Subscriber Line Interface Concept (SLIC), CODEC
• Interface: GCI, PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 65mA
• Power (watts): 941mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Product: Telecom
• Supply Voltage (min): 3.13 V
• Supply Current: 22 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-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 Coefficient
*Note: The usable range for LONGHITH and LONGLOTH is limited to 16 mA. Setting a value >16 mA will disable threshold
detection.
Table 28. Register and RAM Locations Used for Ground Key Detection
Mnemonics
LONGLOTH
LONGHITH
LINEFEED
LONGLPF
LONGDBI
IRQVEC2
Register/
LCRRTP
IRQEN2
ILONG
RAM
LONGLPF[15:3]
LONGDBI[15:0]
Register/RAM
GLOTH[15:0]
ILONG[15:0]
HITH[15:0]
Rev. 1.3
LONGHI
LFS[2:0]
LONGS
LONGE
LONG-
LON-
Bits
Si3220/25 Si3200/02
Programmable
Monitor only
Monitor only
Monitor only
0 to 40.96 s
101.09 mA*
101.09 mA*
0 to 4000h
Yes/No
Yes/No
Range
0 to
0 to
3.097 µA
3.097 µA
1.25 ms
LSB
Size
N/A
N/A
N/A
N/A
N/A
See Table 21
Resolution
396.4 µA
396.4 µA
1.25 ms
N/A
N/A
N/A
N/A
N/A
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