SI2438FT18-EVB Silicon Laboratories Inc, SI2438FT18-EVB Datasheet - Page 21
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SI2438FT18-EVB
Manufacturer Part Number
SI2438FT18-EVB
Description
BOARD EVAL SI2438+SI3018 24PIN
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI3050-E-FM.pdf
(128 pages)
Specifications of SI2438FT18-EVB
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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5. Functional Description
The Si3050 is an integrated direct access arrangement
(DAA) providing a programmable line interface that
meets global telephone line requirements. The Si3050
implements Silicon Laboratories’ patented isolation
capacitor technology, which offers the highest level of
integration by replacing an analog front end (AFE), an
isolation transformer, relays, opto-isolators, and a 2- to
4-wire hybrid with two highly-integrated ICs.
The Si3050 DAA is fully software programmable to meet
global requirements and is compliant with FCC, TBR21,
JATE, and other country-specific PTT specifications as
shown in Table 13. In addition, the Si3050 meets the
most stringent global requirements for out-of-band
energy, emissions, immunity, high-voltage surges, and
safety, including FCC Parts 15 and 68, EN55022,
EN55024, and many other standards.
5.1. Line-Side Device Support
Three different line-side devices are available for use
with the Si3050 system-side device. The Si3011
line-side device has been optimized for TBR21 and
FCC-compliant countries. The Si3018 and Si3019
line-side devices are globally compliant, have a
selectable 5 Hz or 200 Hz RX high-pass filter pole, and
offer a –16.5 to 13.5 dB digital gain/attenuation
adjustment in 0.1dB increments for the transmit and
receive paths.
AOUT/INT
SDI THRU
FSYNC
RESET
RGDT
TGDE
SCLK
PCLK
TGD
SDO
DRX
DTX
SDI
RG
CS
Figure 20. Si3050 + Si3011/18/19 Functional Block Diagram
Interface
Interface
Control
Control
Logic
Data
Data
Line
Si3050
Interface
Isolation
Rev. 1.4
5.1.1. Si3011
5.1.2. Si3018
5.1.3. Si3019
TBR-21 and FCC-compliant line-side device.
and trans-hybrid loss performance.
Globally-compliant line-side device—targets global
DAA requirements for voice applications. This
line-side device supports both FCC-compliant
countries and non-FCC-compliant countries.
and trans-hybrid loss performance.
Globally-compliant, enhanced features line-side
device—targets global DAA requirements for voice
applications.
Selectable dc terminations.
Two selectable ac terminations to increase return loss
+6 dBm TX/RX level mode (600 )
Selectable dc terminations.
Four selectable ac terminations to increase return loss
+6 dBm TX/RX level mode (600 )
Selectable dc terminations
Sixteen selectable ac terminations to further increase
return loss and trans-hybrid loss performance.
Line voltage monitoring in on- and off-hook modes to
enable line in-use/parallel handset detection.
Programmable line current / voltage threshold interrupt.
Polarity reversal interrupt.
+3.2 dBm TX/RX level mode (600 )
+6 dBm TX/RX level mode (600 )
Higher resolution (1.1 mA/bit) loop current
measurement.
Si3050 + Si3011/18/19
Interface
Isolation
Si3018/19
Terminations
Ring Detect
Hybrid, AC
and DC
Off-Hook
DCT
VREG2
RX
IB
SC
VREG
DCT2
DCT3
RNG1
RNG2
QB
QE
QE2
21
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