DS3174 Maxim Integrated Products, DS3174 Datasheet - Page 41
DS3174
Manufacturer Part Number
DS3174
Description
IC QUAD DS3/E3 TXRX 400-PBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3171N.pdf
(234 pages)
Specifications of DS3174
Function
Single-Chip Transceiver
Interface
DS3, E3
Number Of Circuits
4
Voltage - Supply
3.135 V ~ 3.465 V
Current - Supply
725mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
400-BGA
Includes
DS3 Framers, E3 Framers, HDLC Controller, On-Chip BERTs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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Figure 8-13. DS3 SCT Mode Transmit Serial Interface Pin Timing
Figure 8-14. E3 G.751 SCT Mode Transmit Serial Interface Pin Timing
Figure 8-15. E3 G.832 SCT Mode Transmit Serial Interface Pin Timing
8.3.3.2
The RSERn signal has the DS3 or E3 payload as well as the DS3 or E3 overhead bits. The RDENn signal is used
to enable external logic for payload processing and will be high during the DS3 or E3 payload bits and low during
the DS3 or E3 overhead bits. The RGCLKn signal can also be used to clock only the DS3 or E3 payload bits into
external logic since the clock is stopped during the DS3 or E3 overhead bits. The RSOFOn signal marks the first
overhead bit of the DS3 or E3 frame.
Figure 8-16
DS3 TGCLK
E3 TGCLK
E3 TGCLK
TCLKO or
TCLKO or
TCLKO or
DS3 TSER
DS3 TDEN
E3 TSER
E3 TDEN
E3 TSER
E3 TDEN
TSOFO
TSOFO
TSOFO
TCLKI
TCLKI
TCLKI
TSOFI
TSOFI
TSOFI
DS3/E3 SCT Mode Receive Serial Interface Pin Functional Timing
to
Figure 8-18
1
1
1
2
2
2
3
3
3
show the relationship between the SCT receive port pins.
4
4
4
TSER DATA IS OVERWRITTEN WITH OH
5
5
5
TSER DATA IS OVERWRITTEN WITH OH
6
6
6
TSER DATA IS OVERWRITTEN WITH OH
7
7
7
8
8
8
9
9
9
10
10
10
11
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