SI3225-G-GQ Silicon Laboratories Inc, SI3225-G-GQ Datasheet - Page 97

• Manufacturer Part Number: SI3225-G-GQ
• Description: IC PROSLIC/CODEC DUAL 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3225-G-GQ

• 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: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.32.3. Signal Generation Tools
Function
DC Current Generation
DC Voltage Generation
Audio Tone Generation
Ringing Signal Generation
8-Bit dc/Low-Frequency
Monitor A/D Converter
Programmable Timer
AC Low-Pass Filter
16-Bit Audio A/D Converter
Transmit Path Notch Filter
Transmit Path Bandpass Filter
TIP/RING dc signal generation. The Dual ProSLIC
line feed D/A converter can program a constant
current linefeed from 18–45 mA in 0.87 mA steps
with a ±10% total accuracy. In addition, the open-
circuit TIP/RING voltage can be programmed from 0
to 63 V in 1 V steps. The linefeed circuitry can also
generate a controlled polarity reversal.
Tone generation. The Dual ProSLIC devices can
generate single or dual tones over the entire audio
band and can direct them into either the transmit or
receive path depending on the diagnostic
requirements. Ringing signals from 4–100 Hz can
also be generated.
Table 52. Summary of Signal Generation and Measurement Tools
Low Range: 0 to 64.07 V
200 to 3400 Hz
0 to 101.09 mA
300 to 3400 Hz
300 to 3400 Hz
0 to 160.173 V
0 to 50.54 mA
16 to 100 Hz
High Range:
18 to 45 mA
3 to 400 Hz
0 to 63.3 V
0 to 8.19 s
4 to 15 Hz
Signal Generation Tools
0 to 2.5 V
Range
Measurement Tools
Rev. 1.3
Diagnostics mode ringing generation. The Dual
ProSLIC devices can generate an internal low-level
ringing signal to test for the presence of REN without
causing the terminal equipment to ring audibly. This
ringing signal can be either balanced or unbalanced
depending on the state of the RINGUNB bit of the
RINGCON register. This feature is also available
with the Si3225 provided that sufficient battery
voltage is present.
Accuracy/Resolution
Si3220/25 Si3200/02
0.875 mA
396.4 µA
198.2 µA
1.005 V
628 mV
251 mV
125 µs
38 µV
±5%
±1%
—
—
—
—
post-processing blocks
Single or dual notch,
ac
800 Hz update rate
≥90 dB attenuation
rms
Comments
, ac
PK
, and dc
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