GLOBAL SERIAL INTERFACE DIRECT ACCESS ARRANGEMENT - Silicon Laboratories
Description
Si3056 Si3018/19/10
GLOBAL SERIAL INTERFACE DIRECT ACCESS ARRANGEMENT
Features
Complete DAA includes the following:
Programmable line interface
AC termination
DC termination
Ring detect threshold Ringer impedance
80 dB dynamic range TX/RX paths
Integrated codec and 2- to 4-wire
hybrid
Integrated ring detector
Type I and II caller ID support
Line voltage monitor
Loop current monitor
Polarity reversal detection
Programmable digital gain
Clock generation
Pulse dialing support Overload detection 3.
3 V power supply Direct interface to DSPs Serial interface control for up to eight devices >5000 V isolation Proprietary isolation technology Parallel handset detection +3.
2 dBm TX/RX level mode Programmable digital hybrid for nearend echo reduction Low-profile SOIC packages Lead-free/RoHS-compliant packages available
Applications
V.
92 modems
Set-top boxes
Voice mail systems Fax machines
Multi-function printers
Internet appliances Personal digital
assistants
Description
The Si3056 is an integrated direct access arrangement (DAA) with a programmable line interface to meet global telephone line requirements.
Available in two 16-pin small outline packages, it eliminates the need for an analog front end (AFE), isolation transformer, relays, opto-isolators, and a 2- to 4-wire hybrid.
The Si3056 dramatically reduces the number of discrete components and cost required to achieve compliance with global regulatory requirements.
The Si3056 interfaces directly to standard modem DSPs.
Functional Block Diagram
MCLK SCLK FSYNC
SDI SDO FC/RGDT
RGDT/FSD/M1 OFHK M0
RESET
AOUT/INT
Si3056
Digital Interface
Control Interface
Isolation Interface
Si3018/19/10
Isolation Interface
Hybrid and dc
Termination
Ring Detect Off-Hook
RX
IB SC
DCT VREG VREG2 DCT2 DCT3
RNG1 RNG2 QB QE QE2
Ordering Information See page 87.
Pin Assignments Si3056
MCLK FSYNC
SCLK VD
SDO SDI
FC/RGDT RESET
1 2 3 4 5 6 7 8...
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