IDT82V2048S Datasheet, PDF (2/62 Pages) Integrated Device Technology – OCTAL T1/E1 SHORT HAUL LINE INTERFACE UNIT WITH SINGLE ENDED OPTION

IDT82V2048S OCTAL T1/E1 SHORT HAUL LIU WITH SINGLE ENDED OPTION
INDUSTRIAL TEMPERATURE RANGES
DESCRIPTION
The IDT82V2048S is a single chip, 8-channel T1/E1 short haul PCM
transceiver with a reference clock of 1.544 MHz (T1) or 2.048 MHz (E1).
The IDT82V2048S contains 8 transmitters and 8 receivers.
All the receivers and transmitters can be programmed to work either
in Single Rail mode or Dual Rail mode. B8ZS/HDB3 or AMI encoder/
decoder is selectable in Single Rail mode. Pre-encoded transmit data in
NRZ format can be accepted when the device is configured in Dual Rail
mode. The receivers perform clock and data recovery by using inte-
grated digital phase-locked loop. As an option, the raw sliced data (no
retiming) can be output on the receive data pins. Transmit equalization is
implemented with low-impedance output drivers that provide shaped
waveforms to the transformer, guaranteeing template conformance.
A jitter attenuator is integrated in the IDT82V2048S and can be
switched into either the transmit path or the receive path for all channels.
The jitter attenuation performance meets ETSI CTR12/13, ITU G.736,
G.742, G.823, and AT&T Pub 62411 specifications.
The IDT82V2048S offers hardware control mode and software
control mode. Software control mode works with either serial host inter-
face or parallel host interface. The latter works via an Intel/Motorola
compatible 8-bit parallel interface for both multiplexed or non-multi-
plexed applications. Hardware control mode uses multiplexed pins to
select different operation modes when the host interface is not available
to the device.
The IDT82V2048S also provides loopback and JTAG boundary scan
testing functions. Using the integrated monitoring function, the
IDT82V2048S can be configured as a 7-channel transceiver with non-
intrusive protected monitoring points.
The IDT82V2048S can be used for SDH/SONET multiplexers,
central office or PBX, digital access cross connects, digital radio base
stations, remote wireless modules and microwave transmission
systems.
PIN CONFIGURATIONS
BPVI4/TDN4
109
RCLK4
110
RD4/RDP4
111
CV4/RDN4
112
LOS4
113
OE
114
CLKE
115
VDDT4
116
TTIP4
117
TRING4
118
GNDT4
119
RTIP4
120
RRING4
121
GNDT5
122
TRING5
123
TTIP5
124
VDDT5
125
RRING5
126
RTIP5
127
VDDT6
128
TTIP6
129
TRING6
130
GNDT6
131
RTIP6
132
RRING6
133
GNDT7
134
TRING7
135
TTIP7
136
VDDT7
137
RRING7
138
RTIP7
139
LOS7
140
CV7/RDN7
141
RD7/RDP7
142
RCLK7
143
BPVI7/TDN7
144
IDT82V2048S
(Top View)
72
BPVI3/TDN3
71
RCLK3
70
RD3/RDP3
69
CV3/RDN3
68
LOS3
67
RTIP3
66
RRING3
65
VDDT3
64
TTIP3
63
TRING3
62
GNDT3
61
RRING2
60
RTIP2
59
GNDT2
58
TRING2
57
TTIP2
56
VDDT2
55
RTIP1
54
RRING1
53
VDDT1
52
TTIP1
51
TRING1
50
GNDT1
49
RRING0
48
RTIP0
47
GNDT0
46
TRING0
45
TTIP0
44
VDDT0
43
MODE1
42
LOS0
41
CV0/RDN0
40
RD0/RDP0
39
RCLK0
38
BPVI0/TDN0
37
TD0/TDP0
Figure-2 TQFP144 Package Pin Assignment
2