SI3019-F-FT Silicon Laboratories Inc, SI3019-F-FT Datasheet - Page 82

• Manufacturer Part Number: SI3019-F-FT
• Description: IC VOICE DAA GCI/PCM/SPI 16TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of SI3019-F-FT

• Package / Case: 16-TSSOP
• Function: Data Access Arrangement (DAA)
• Interface: GCI, PCM, SPI
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 8.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Includes: Line Voltage Monitor, Loop Current Monitor, Overload Detection, Parallel Handset Detection, Polarity Reversal Detection, TIP and
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 8.5 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Si3050
Register 31. DAA Control 5
Reset settings = 0010_0000
82
6:5
Bit
7
4
3
2
1
0
Name
Type
Bit
Reserved Always write these bits to zero.
Reserved Always write these bits to zero.
FOH[1:0] Fast Off-Hook Selection.
Name
OHS2
FULL
LVFD
FILT
FULL
R/W
Full Scale Transmit and Receive Mode.
0 = Default.
1 = Transmit/receive full scale.
This bit changes the full scale of the ADC and DAC from 0 dBm min to +3.2 dBm into a 600 Ω
load (or 1 dBV into all reference impedances). When this bit is set, the DCV[1:0] bits
(Register 26) should be set to all 1s. The MINI[1:0] bits also should be set to all 0s. This ensures
correct operation of the full scale mode.
These bits determine the length of the off-hook counter. The default setting is 128 ms.
00 = 512 ms
01 = 128 ms
10 = 64 ms
11 = 8 ms
On-Hook Speed 2.
Filter Pole Selection.
0 = The receive path has a low –3 dBFS corner at 5 Hz.
1 = The receive path has a low –3 dBFS corner at 200 Hz.
Line Voltage Force Disable (Si3019 line-side only).
0 = Normal operation.
1 = The circuitry that forces the LVS register (Register 29) to all 0s at 3 V or less is disabled. The
LVS register may display unpredictable values at voltages between 0 to 2 V. All 0s are displayed
if the line voltage is 0 V.
This bit, in combination with the OHS bit (Register 16) and the SQ[1:0] bits on-hook speeds
specified are measured from the time the OH bit is cleared until loop current equals zero.
OHS
D7
0
0
1
OHS2
D6
0
1
X
FOH[1:0]
RW
SQ[1:0]
D5
00
00
11
Rev. 1.2
D4
0
26 ms ±10% (meets Australia spark quenching spec)
Mean On-Hook Speed
Less than 0.5 ms
3 ms ±10% (meets ETSI standard)
Function
OHS2
R/W
D3
D2
0
FILT
R/W
D1
LVFD
R/W
D0