Rainbow Electronics DS3150 User Manual
Ds3150, 3v t3/e3/sts-1 line interface unit, Features
1 of 22
020602
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FEATURES
Integrated transmit and receive for T3, E3,
and STS-1 line interfaces
Performs clock/data recovery and wave
shaping
Requires no special external components
other than 1:2 transformers
Interfaces to 75
Ω
coaxial cable at lengths up
to 380m (T3), 440m (E3), or 360m (STS-1)
Adaptive receive equalizer handles from 0dB
to 15dB of cable loss
Interfaces directly to a DSX monitor signal
(20dB flat loss)
On-chip jitter attenuator can be placed either
in the receive path or the transmit path
Built-in B3ZS and HDB3 coder/decoder
Bipolar and NRZ interfaces
Analog and digital loopbacks
Onboard 2
15
- 1 and 2
23
- 1 Pseudo Random
Bit Sequence (PRBS) generator and detector
Transmit line-driver monitor checks for a
faulty transmitter or a shorted output
Complete T3 AIS generator (ANSI T1.107)
Unframed all ones generator (E3 AIS)
Digital clock inversion capability
Three-state line driver for low-power mode
Loss-of-signal detector (ANSI T1.231-1999
and ITU G.775)
Pin compatible with the TDK 78P7200 and
78P7200L
Drop-in replacement for TDK 78P2241/B
(Refer to Application Note 362)
Low-power 3.3V operation (5V tolerant I/O)
Industrial temperature range: -40
°
C to +85
°
C
Small packaging: 28-pin PLCC and
48-pin TQFP
FUNCTIONAL DIAGRAM
ORDERING INFORMATION
DS3150QN 28-Pin
PLCC -40
°
C to +85
°
C
DS3150Q 28-Pin
PLCC
0
°
C to +70
°
C
DS3150TN
48-Pin TQFP -40
°
C to +85
°
C
DS3150T 48-Pin
TQFP
0
°
C to +70
°
C
PRELIMINARY
PRELIMINARY
Rx+
Rx-
Tx+
Tx-
RCLK
RPOS
RNE
TCLK
TPOS
TNEG
Line In
T3, E3,
STS-1
Line Out
T3, E3,
STS-1
Receive
Clock and
Data
Transmit
Clock and
Data
DS3150 LIU
DS3150
3.3V T3/E3/STS-1 Line Interface Unit
www.maxim-ic.com