AK2540 Datasheet, PDF (2/33 Pages) Asahi Kasei Microsystems – Quad T1 Transceiver

ASAHI KASEI
[AK2540]
GENERAL DESCRIPTIONS
The AK2540 is the quad short haul T1 transceiver for asynchronous applications, such as M13
MUX, etc. It includes Transmitter, Clock and Data Recovery, Jitter Attenuator, LOS Detector,
Driver Failure Monitor, Control Circuits, etc. in one LQFP-144 package. Internally generated
transmit pulse provides the appropriate pulse shape for line length ranging from 0 to 655 feet from
a DSX-1 cross connect.
PIN ASSIGNMENTS
DFM3 1
AIS3 2
TPOS3 3
TNEG3 4
TCLK3 5
LOS3 6
RPOS3 7
RNEG3 8
NC 9
RCLK3 10
DFM4 11
AIS4 12
TAVDD1 13
NC 14
TAVSS1 15
TPOS4 16
TNEG4 17
TCLK4 18
LOS4 19
RPOS4 20
RNEG4 21
RCLK4 22
DAVSS2 23
NC 24
IOVDD 25
IOVSS 26
NC 27
NC 28
AD0_LENG21 29
AD1_LENG11 30
AD2_LENG01 31
AD3_LENG22 32
AD4_LENG12 33
AD5_LENG02 34
AD6_LENG23 35
AD7_LENG13 36
(TOP VIEW)
108 DFM1
107 AIS1
106 TPOS1
105 TNEG1
104 TCLK1
103 LOS1
102 RPOS1
101 RNEG1
100 NC
99 RCLK1
98 DFM2
97 AIS2
96 NC
95 NC
94 TAVDD2
93 TAVSS2
92 NC
91 DVSS
90 DVDD
89 DAVSS1
88 NC
87 TPOS2
86 TNEG2
85 TCLK2
84 NC
83 LOS2
82 RPOS2
81 RNEG2
80 RCLK2
79 NC
78 JASELT
77 JASELR
76 NC
75 RAVDD
74 RAVSS
73 NC
MS0012-E-00
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