DS3172 Maxim Integrated, DS3172 Datasheet - Page 3

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

1 BLOCK DIAGRAMS
Figure 1-1
the functional block diagram of one channel DS3/E3 LIU.
Figure 1-1. LIU External Connections for a DS3/E3 Port of a DS317x Device
Figure 1-2. DS317x Functional Block Diagram
RNEGn/ RLCVn
TPOSn/TDATn
shows the external components required at each LIU interface for proper operation.
Transmit
Receive
RLCLKn
TLCLKn
TNEGn
RDATn
RXPn
RXNn
TXPn
TXNn
Clock Rate
Receive
Transmit
DS3/E3
DS3/E3
Adapter
LIU
LIU
1:2ct
1:2ct
Decoder
Encoder
B3ZS/
B3ZS/
HDB3
HDB3
Microprocessor
Interface
330Ω
(1%)
330Ω
(1%)
Each DS3/E3 LIU Interface
TUA1
TAIS
TXP
TXN
RXP
RXN
FEAC
3
DS3 / E3
Framer
DS3 / E3
Transmit
Receive
Formatter
Buffer
Trace
Trail
VDD
VDD
VDD
VSS
VSS
VSS
HDLC
GEN
UA1
0.01uF
0.01uF
0.01uF
DS317x
IEEE P1149.1
0.1uF
0.1uF
0.1uF
Access Port
JTAG Test
RX BERT
TX BERT
1uF
1uF
1uF
Ground
Plane
3.3V
Power
Plane
TCLKIn
TSERn
TSOFIn
RCLKOn/RGCLKn
RSERn
RSOFOn/RDENn
n = port # (1-4)
Figure 1-2
shows