Rainbow Electronics DS2180A - Manual

E Copyright 1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
DS2180A
T1 Transceiver
DS2180A
041995 1/36
FEATURES
•
Single chip DS1 rate transceiver
•
Supports common framing standards
– 12 frames/superframe “193S”
– 24 frames/superframe “193E”
•
Three zero suppression modes
– B7 stuffing
– B8ZS
– Transparent
•
Simple serial interface used for configuration, control
and status monitoring in “processor” mode
•
“Hardware” mode requires no host processor; in-
tended for stand-alone applications
•
Selectable 0, 2, 4, 16 state robbed bit signaling modes
•
Allows mix of “clear” and “non-clear” DS0 channels on
same DS1 link
•
Alarm generation and detection
•
Receive error detection and counting for transmission
performance monitoring
•
5V supply, low-power CMOS technology
•
Surface mount package available, designated
DS2180AQ
•
Industrial temperature range of -40
°
C to +85
°
C avail-
able, designated DS2180AN or DS2180AQN
•
Compatible to DS2186 Transmit Line Interface,
DS2187 Receive Line Interface, DS2188 Jitter Atten-
uator, DS2175 T1/CEPT Elastic Store, DS2290 T1
Isolation Stik, and DS2291 T1 Long Loop Stik
DESCRIPTION
The DS2180A is a monolithic CMOS device designed to
implement primary rate (1.544 MHz) T-carrier transmis-
sion systems. The 193S framing mode is intended to
support existing Ft/Fs applications (12 frames/super-
frame). The 193E framing mode supports the extended
superframe format (24 frames/superframe). Clear
channel capability is provided by selection of appropri-
ate zero suppression and signaling modes.
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 21
22
23
24
40-Pin DIP (600 MIL)
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 TMSYNC
TFSYNC
TCLK
TCHCLK
TSER
TMO
TSIGSEL
TSIGFR
TABCD
TLINK
TLCLK
TPOS
TNEG
INT
SDI
SDO
CS
SCLK
SPS
VSS
VDD
RLOS
RFER
RBV
RCL
RNEG
RPOS
RST
TEST
RSIGSEL
RSIGFR
RABCD
RMSYNC
RFSYNC
RSER
RCHCLK
RCLK
RLCLK
RLINK
RYEL
INT
RST
44-PIN PLCC
NC TCHCLK TCLK NC TFSYNC TMSYNC VDD RLOS RFER RBV RCL
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
18 19 20 21 22 23 24 25 26 27 28
6 5 4 3 2 1 44 43 42 41 40
RNEG
RPOS
TEST
RSIGSEL
RSIGFR
RABCD
RMSYNC
RFSYNC
RSER
RCHCLK
TSER
TMO
TSIGSEL
TSIGFR
TABCD
TLINK
TLCLK
TPOS
TNEG
SDI
SDO
CS
SCLK
SPS VSS
R
YEL
RLINK
NC
RLCLK
RCLK
NC