SI3203-B-FM Silicon Laboratories Inc, SI3203-B-FM Datasheet - Page 28

• Manufacturer Part Number: SI3203-B-FM
• Description: IC PROSLIC LINE FEED 100V 40QFN
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3203-B-FM

• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: No
• Longitudinal Balanced: 60
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: TQFP
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Function: Subscriber Line Interface Concept (SLIC)
• Interface: GCI, PCM, SPI
• Number Of Circuits: 4
• Voltage - Supply: 3.3V
• Current - Supply: *
• Power (watts): *
• Operating Temperature: *
• Mounting Type: Surface Mount
• Package / Case: 40-VFQFN Exposed Pad
• Includes: *
• Lead Free Status / RoHS Status: Compliant

Si3208/9
4.17. SPI Control Interface
The controller interface to the Dual ProSLIC is a 4-wire
interface modeled after microcontroller and serial
peripheral devices. The interface consists of a clock
(SCLK), chip select (CS), serial data input (SDI), and
serial data output (SDO). In addition, the Dual ProSLIC
devices feature a serial data through output (SDITHRU)
to support operation of up to eight devices (up to 16
channels) using a single chip select line. The device
operates with both 8-bit and 16-bit SPI controllers.
4.18. PCM Interface and Companding
The Dual ProSLIC contains a flexible, programmable
interface for the transmission and reception of digital
PCM samples. PCM data transfer is controlled by the
PCM clock (PCLK) and frame sync (FSYNC) inputs as
well as the PCM Mode Select, PCM Transmit Start, and
PCM Receive Start settings.
The interface can be configured to support from four to
128
corresponding to a PCM clock (PCLK) frequency range
of 256 kHz to 8.192 MHz. 1.544 MHz is also supported.
The Dual ProSLIC supports both µ-255 Law (µ-Law)
and A-law companding formats in addition to 16-bit
linear data mode with no companding.
4.19. General Circuit Interface
The
communication interface to the SPI and PCM control
and data interface. The General Circuit Interface (GCI)
is used for transmission and reception of both control
and data information onto a GCI bus. The PCM and GCI
interfaces are both 4-wire interfaces and share the
same pins. In GCI mode, the four-wire SPI control
interface is used as hard-wired channel selector pins.
The selection between PCM and GCI modes is
performed when coming out of reset using the
SDITHRU pin.
28
8-bit
Dual
time
ProSLIC
slots
supports
in
each
an
125 µs
alternative
Preliminary Rev. 0.33
frame,
4.20. Metallic Loop Testing
The Dual ProSLIC includes the ability to detect multiple
fault conditions within the line card as well as on the T/R
pair.
1. Hazardous Potential Test—This test checks for ac
2. Foreign ElectroMotive Force Test—Checks T-G or
3. Resistive Faults Test—Checks for dc resistance from
4. Receiver-Off-Hook Test—Distinguishes between a
5. Ringers Test—Checks for the presence of REN
6. AC Line Impedance (line length)—T-R, T-G, and
7. Line Capacitance—T-R, T-G, R-G. Generate a linear
8. Ringer Capacitance—This test uses the same
9. Ringing Voltage Verification—Uses current voltage
10.Test-In Diagnostics—The Dual ProSLIC can switch
voltage >50 V
G. If a hazardous voltage is encountered, test access
MUST release within two seconds of the time when it
was initiated using a preset threshold.
R-G for ac voltage >10 V
same threshold as for hazardous voltage test.
T-R, T-G or R-G. Any measurement <150 kΩ is
considered a resistive fault.
T-R resistive fault and an off-hook condition.
across T-R. Result are >0.175REN and <5REN for a
valid load.
R-G. Generate a tone at several specific frequencies
(audio band) and measure the reflected signal
amplitude (complex spectrum) that comes back (with
transhybrid balance filter disabled). The reflected
signal is then used to calculate the line impedance
based on certain assumptions of wire gauge, etc.
ramp function with polarity reversal, and measure
the time constant.
procedure as the ringer test above but also
measures the V/I phase relationship of the received
signal (dc path) and then subtracts the delay to
calculate the ringer capacitance.
sensing capability.
in a preset load impedance to test the SLIC/codec
functionality using a known set of conditions.
rms
or dc voltage >135 V on T-G or R-
rms
, dc voltage >6 V. Uses