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PDF S5N8944B Data sheet ( Hoja de datos )
| Número de pieza | S5N8944B | |
| Descripción | G.Lite ADSL Transceiver for CO and CPE | |
| Fabricantes | Samsung semiconductor | |
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S5N8944B
G.Lite
ADSL Transceiver for CO and CPE
Preliminary Information
(Revision 2.1)
June 2000
SAMSUNG ELECTRONICS CONFIDENTIAL PROPRIETARY
Copyright © 2000 Samsung Electronics, Inc. All Rights Reserved
1 page  
S5N8944B
G.Lite ADSL Transceiver for CO and CPE
1. Features
• Full Compliance with ITU-T G.Lite and G.hs
• FDM based DMT Line Coding
• Data Rate: Up to 3.5 Mbps for Downstream and 600 kbps for Upstream.
• Reach: 5.4 km (18 kft) on 24 AWG and 4 km (13.5kft) on 26 AWG
• Rate Adaptive Modem (steps of 32kbps)
• Reed-Solomon Forward Error Correction with Interleaver
• Frequency and Time Domain Equalizer
• Support Fast Retraining Function
• Support Network Management Function
• Support Power Management Function
• Host Interface (Intel/Motorola) and ATM(UTOPIA-2)/non-ATM Interface
• 0.25µm, 2.5V CMOS Technology
• Operating Temperature: -40 °C to 85 °C
• Package Type: 160-QFP
2. General Description
The S5N8944B is a complete ATM-based rate adaptive G.Lite ADSL modem solution with
associated F/W and an Analog Front-End (S5N8943). The S5N8944B provides all the digital
functions such as ATM TC, FEC codec with interleaver/de-interleaver, adaptive QAM codec,
FFT/IFFT, equalizers, digital filters and so on.
There are four interfaces for external communications; UTOPIA-2 interface for direct connection
to ATM systems, serial interface for non-ATM applications, 16-bit ADC/DAC interface, and host
interface for general CPUs like Intel or Motorola.
The same chipset can be used at both sides of the link, Central Office and Customer Premises
Equipment. The S5N8944B uses 17.664MHz Xtal oscillator as a master clock for CO side and
17.664MHz VCXO for CPE.
ATM
or
Non-ATM
S5N8944
Digital
Interface
DMT
Processor
S5N8943
Analog
Front-
End
Hybrid
Line
Driver
Phone
Line
Host
DSP
ROM
ROM
Figure 1: General Block Diagram
CONFIDENTIAL
5 Preliminary Information (Rev.2.1 )
5 Page 
156 TL_BMODE_0
5 VDD1
26 VDD3
48 VDD5
60 VDD6
85 VDD8
103 VDD10
118 VDD11
142 VDD13
149 AVDD15
153 AVDD16
16 VDD2
36 VDD4
72 VDD7
96 VDD9
129 VDD12
148 VDD14
6 GND1
15 GND2
25 GND3
35 GND4
47 GND5
59 GND6
71 GND7
86 GND8
95 GND9
102 GND10
117 GND11
128 GND12
141 GND13
145 GND14
150 AGND15
151 AGND16
154 AGND17
S5N8944B
G.Lite ADSL Transceiver for CO and CPE
P1 2.5V Supply Voltage
P1 2.5V Analog Supply Voltage
P1 3.3V Supply Voltage
P0 Digital Ground
P0 Analog Ground
I = Input
O = Output
OZ = Tri-state Output
B = Bi-direction
P1 = Power
P0 = Ground
6. Functional Description
The G.Lite ADSL modem consists of two main chips; ADSL Transceiver chip (S5N8944) and
Analog Front-End chip (S5N8943). The Analog Front-End provides an analog interface with line
CONFIDENTIAL
11 Preliminary Information (Rev.2.1 )
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet S5N8944B.PDF ] | |
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