n681622 Winbond Electronics Corp America, n681622 Datasheet
n681622
Manufacturer Part Number
n681622
Description
Dual Programmable Extended Codec/slcc And Slfc
Manufacturer
Winbond Electronics Corp America
Datasheet
1.N681622.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
n681622YG
Manufacturer:
NUVOTON
Quantity:
5 000
T
telephone line interface optimized for short loop applications. The
N682387 integrates dual SLCC (Subscriber Line Control Circuit)
functionality with a dual channel programmable CODEC and a
dual DC-to-DC controller. The N681622 integrates the SLFC
(Subscriber Line Feed Circuit) to provide the high voltage analog
front end for each line. The chipset supports internal ringing up
to 90V
(CPE). The CODEC can be configured for μ-law/ A-law or 16-bit
linear PCM encoding and supports a comprehensive set of
signaling capabilities required to supervise and control both
telephone lines. These include tone generation (including ring
tones), DTMF generation and detection as well as FSK
generation. An on-chip dual pulse width modulation (PWM) driver
allows the control of DC-to-DC conversion for each line.
Programmable impedance and transhybrid balancing allow for
worldwide deployment.
APPLICATIONS
Analog Telephone Adapter (ATA)
Voice-enabled DSL Modems
Voice-enabled Cable Modems
Residential VoIP Gateways / Routers
Integrated Access Devices (IAD)
Fiber to the Premise/Home (FTTP/H)
Optical Network Terminals (ONT) for EPON, GPON, GEPON
Set Top Boxes
Wireless Local Loop
he N682387/N681622 implements a dual channel FXS
PK
(5REN at 4kft), ideal for customer premise equipment
Dual Programmable Extended CODEC/SLCC and SLFC
DC / DC
Control
Sigma/delta
Sigma/delta
Line Monitor
Nuvoton N682387/N681622
Line Feed
ADC
DAC
ADC
DACs
Loop Closure
Conditioning
Gain Adjust
PCM Filters
Ring Trip
Detection
Detection
Algorithm
DC feed
Subscriber Loop
Control Circuit
Supervision
DC-to-DC
Supervision
Generation
Generation
Generation
Diagnostic
Ringing
Loop
Tone
FSK
Line
FEATURES
Performs complete BORSCHT functions for two channels on a
single device
Internal balanced ringing up to 90V
Integrated Power Management
▫
▫
Programmable linefeed characteristics
▫
▫
▫
▫
▫
▫
Programmable signal generation
▫
▫
▫
▫
Loop test and diagnostics support
▫
▫
▫
PCM and SPI bus digital interfaces
▫
On-chip PLL for flexible clocking options including 2MHz
Sampling Rate: 16 kHz / 8 kHz
Small Footprint Packages: TQFP-64, QFN-64, QFN-20 (SLFC)
Integrated DC-DC controller regulates battery voltage to
minimize power dissipation in all operating modes
Battery voltage switched between up to three external
sources
Ringing frequency, amplitude, cadence
Trapezoidal and Sinusoidal waveforms
Two-wire AC impedance, transhybrid balance
Constant Current feed (20 to 41mA)
Ring trip and loop closure detects
Low power Idle state
DTMF generation and detection
Enhanced Caller ID (FSK) generation (Type I and Type II)
Tone generation (up to four simultaneous)
Enhanced G.711 μ-Law/A-Law / 16-bit linear PCM audio
Integrated loopback modes
On-chip temperature sensor
Enhanced GR-909 Support
PCM Master and Slave modes supported
Signaling
Supervision
Generation
Loopback
Detection
Thermal
Control
Control
DTMF
DTMF
Mode
PCM
PLL
SPI
PK
(5REN up to 4kft)
Single
N682387/N681622
Dual
Revision 1.4 - 4/2010
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n681622 Summary of contents
Page 1
... N682387 integrates dual SLCC (Subscriber Line Control Circuit) functionality with a dual channel programmable CODEC and a dual DC-to-DC controller. The N681622 integrates the SLFC (Subscriber Line Feed Circuit) to provide the high voltage analog front end for each line. The chipset supports internal ringing up ...
Page 2
... VDD3 36 VREF1 35 DCL1 34 DCH1 33 RESETb N682387/N681622 ORDERING INFORMATION Part Number N682387MG N682387YG N681622YG Ethernet VoIP Processor 1 15 VBAT N681622 3 Single Channel 13 NC SLFC SDR N681622 QFN 20-Pin Package Notes TQFP-64 Green/RoHS QFN-64 Green/RoHS QFN-20 Green/RoHS N682387/N681622 Revision 1.4 - 4/2010 ...