DS21348 Dallas Semiconducotr, DS21348 Datasheet - Page 2

no-image

DS21348

Manufacturer Part Number
DS21348
Description
3.3V E1/T1/J1 Line Interface
Manufacturer
Dallas Semiconducotr
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS21348G
Manufacturer:
DS
Quantity:
837
Part Number:
DS21348G
Manufacturer:
Maxim Integrated
Quantity:
10 000
Part Number:
DS21348G
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
DS21348G+
Manufacturer:
Maxim Integrated
Quantity:
10 000
Part Number:
DS21348G+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS21348GN
Manufacturer:
Maxim Integrated
Quantity:
10 000
Company:
Part Number:
DS21348GN
Quantity:
80
Part Number:
DS21348GN+
Manufacturer:
Maxim Integrated
Quantity:
10 000
Part Number:
DS21348GN-C01
Manufacturer:
Maxim Integrated
Quantity:
10 000
Part Number:
DS21348T
Manufacturer:
DALLAS
Quantity:
188
Part Number:
DS21348T
Manufacturer:
DALLAS
Quantity:
13
Part Number:
DS21348T
Manufacturer:
DALLAS
Quantity:
20 000
Part Number:
DS21348T
Quantity:
63
Part Number:
DS21348T+
Manufacturer:
MAXIM
Quantity:
612
Part Number:
DS21348T+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS21348TN
Manufacturer:
DALLAS
Quantity:
5 530
DS21348/Q348
DESCRIPTION
The DS21348 is a complete selectable E1 or T1 LIU for short-haul and long-haul applications.
Throughout the data sheet, J1 is represented wherever T1 exists. Receive sensitivity adjusts automatically
to the incoming signal and can be programmed for 0dB to 12 dB or 0dB to 43dB for E1 applications and
0dB to 30dB or 0dB to 36dB for T1 applications. The device can generate the necessary G.703 E1
waveshapes in 75Ω or 120Ω applications and DSX-1 line build outs or CSU line build outs of 0dB,
-7.5dB, -15dB, and -22.5dB for T1 applications. The crystal-less onboard jitter attenuator requires only a
2.048MHz MCLK for both E1 and T1 applications (with the option of using a 1.544MHz MCLK in T1
applications). The jitter attenuator FIFO is selectable to either 32 bits or 128 bits in depth and can be
placed in either the transmit or receive data paths. An X 2.048MHz output clock synthesized to RCLK is
available for use as a backplane system clock (where n = 1, 2, 4, or 8). The DS21348 has diagnostic
capabilities such as loopbacks and PRBS pattern generation/detection. 16-bit loop-up and loop-down
codes can be generated and detected. The device can be controlled via an 8-bit parallel muxed or
nonmuxed port, serial port, or used in hardware mode. The device fully meets all of the latest E1 and T1
specifications including ANSI T1.403-1999, ANSI T1.408, AT&T TR 62411, ITU G.703, G.704, G.706,
G.736, G.775, G.823, I.431, O.151, O.161, ETSI ETS 300 166, JTG.703, JTI.431, JJ-20.1, TBR12,
TBR13, and CTR4.
2 of 73

Related parts for DS21348