SI3230-KT Silicon Laboratories Inc, SI3230-KT Datasheet - Page 33

• Manufacturer Part Number: SI3230-KT
• Description: IC SLIC PROG 1-CH 38TSSOP
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3230-KT

• Package / Case: *
• Function: Subscriber Line Interface Concept (SLIC)
• Interface: SPI
• Number Of Circuits: 1
• Voltage - Supply: 3.13 V ~ 5.25 V
• Current - Supply: 88mA
• Power (watts): 700mW
• Mounting Type: Surface Mount
• Includes: DTMF Generation and Decoding, FSK Generation
• Product: SLIC
• Supply Voltage (min): 3.13 V
• Supply Current: 88 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 1
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

2.5. Pulse Metering Generation
There is an additional tone generator suitable for
generating tones above the audio frequency. This
oscillator is provided for the generation of billing tones
which are typically 12 kHz or 16 kHz. The generator
follows the same algorithm as described in "2.3. Tone
Generation" on page 26 with the exception that the
sample rate for computation is 64 kHz instead of 8 kHz.
The equations are as follows:
Pulse Metering Amplitude Coefficient
Note: The ProSLIC uses registers that are both directly and indirectly mapped. A “direct” register is one that is mapped
Pulse Metering Attack/Decay Ramp
Frequency
Pulse Metering Frequency Coeffi-
Ringing
Pulse Metering Inactive Timer
16.667
Pulse Metering Active Timer
Hz
20
30
40
50
60
directly. An “indirect” register is one that is accessed using the indirect access registers (direct registers 28
through 31).
Pulse Metering Control
Parameter
PLSCO
coeff
cient
Rate
decimal
=
100
128
213
256
=
Table 29. Associated Pulse Metering Generator Registers
112
64
cos
Table 28. Recommended Ring Trip Values for Ringing
coeff
⎛
⎝
------------------------- -
64000 Hz
NRTP
×
2 π f
(
2
15
–
⎞
⎠
1
06A8
0200
0320
0380
0400
0800
hex
)
Status and control registers
0 to PLSX (full amplitude)
Sets oscillator frequency
Sets oscillator amplitude
Description / Range
Preliminary Rev. 0.96
0 to 8 seconds
0 to 8 seconds
decimal
34 mA
34 mA
34 mA
34 mA
34 mA
34 mA
where full scale V
The initial phase of the pulse metering signal is set to 0
internally so there is no register to serve this purpose.
The pulse metering generator timers and associated
pulse metering timer registers are similar to that of the
tone generators. These timers count 8 kHz sample
periods like the other tones even though the sinusoid is
generated at 64 kHz.
PLSX
RPTP
=
PSTAT, PMAE,
3600
3600
3600
3600
3600
3600
1
-- - 1 coeff
4
Register Bits
hex
PLSCO[15:0]
PMIE, PMOE
PLSX[15:0]
PLSD[15:0]
PAT[15:0]
----------------------- -
1
PIT[15:0]
+
–
rms
coeff
= 0.85 V
×
(
2
8.96 ms
decimal
15.4 ms
12.3 ms
7.5 ms
4.8 ms
15
5 ms
rms
–
Direct Registers 44 & 45
Direct Register 46 & 47
1
Indirect Register 25
Indirect Register 24
Indirect Register 23
)
for a matched load.
Direct Register 35
×
------------------------------------------- -
Full Scale V
RTDI
Desired V
Location
Si3230
hex
0F
0B
09
07
05
05
rms
rms
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