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Электронный компонент: AK2540

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ASAHI KASEI [AK2540]
MS0012-E-00 2000/1
1
AK2540
Quad T1 Transceiver
FEATURE
- 4ch short haul T1 transceiver with jitter attenuator
- Jitter Tolerance: Compliant with GR-499 Category I,II and TR 62411
- Transmitter Pulse Shape: Compliant with GR-499 and ANSI T1.102 (1993)
- Loss of Signal Detection
- Local/Remote Loopback Mode
- Driver Failure Monitor
- Current limiter in transmit drivers for short circuits protection
- Hardware/Host Control Mode
- Single 3.3V5% or 5.0V5% Operation
- Low Power Consumption
- Package: 144LQFP
BLOCK DIAGRAM
Quad T1 Transceiver Block Diagram
TRANSCEIVER 1
TRANSCEIVER 2-4
CLOCK
&DATA
RECOVERY
CLKGEN
MCLK
RTIP1
RRING1
RCLK1
RPOS1
RNEG1
LOS1
RCLK2-4
RPOS2-4
RNEG2-4
TCLK2-4
TPOS2-4
TNEG2-4
PULSE
SHAPER
TTIP1
TRING1
TNEG1
TPOS1
TCLK1
CONTROL
DFM2-4
TTIP2-4
TRING2-4
RTIP2-4
RRING2-4
LOS2-4
Local Loopback
Remote Loopback
LOS
JITTER
ATT
DFM
DFM1
TAOS
MCLKSEL
ASAHI KASEI [AK2540]
MS0012-E-00 2000/1
2
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
DFM1
AIS1
TPOS1
TNEG1
TCLK1
LOS1
RPOS1
RNEG1
NC
RCLK1
DFM2
AIS2
NC
NC
TAVDD2
TAVSS2
NC
DVSS
DVDD
DAVSS1
NC
TPOS2
TNEG2
TCLK2
NC
LOS2
RPOS2
RNEG2
RCLK2
NC
JASELT
JASELR
NC
RAVDD
RAVSS
NC
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
DFM3
AIS3
TPOS3
TNEG3
TCLK3
LOS3
RPOS3
RNEG3
NC
RCLK3
DFM4
AIS4
TAVDD1
NC
TAVSS1
TPOS4
TNEG4
TCLK4
LOS4
RPOS4
RNEG4
RCLK4
DAVSS2
NC
IOVDD
IOVSS
NC
NC
AD0_LENG21
AD1_LENG11
AD2_LENG01
AD3_LENG22
AD4_LENG12
AD5_LENG02
AD6_LENG23
AD7_LENG13
NC
NC
NC
LLOOP4
RLOOP4
TTIP4
TVSS4
TVDD4
TRING4
AVSS4
NC
LLOOP3
RLOOP3
TTIP3
TVSS3
TVDD3
TRING3
AVSS3
NC
LLOOP2
RLOOP2
TTIP2
TVSS2
TVDD2
TRING2
AVSS2
NC
NC
LLOOP1
RLOOP1
TTIP1
TVSS1
TVDD1
TRING1
AVSS1
NC
NC
R/
W
(
WR
)
_LENG03
AS
(
ALE
)
_LENG24
DS
(
RD
)
_LENG14
CS_LENG04
BTS_AIS1SEL
INT
_LOMC
HWMODE
RESET
SEL5V
CLKE
TEST8
RRING4
RTIP4
TEST7
TEST6
RRING3
RTIP3
TEST5
PVSS
NC
MCLK
MCLKSEL
PVDD
BVDD
BGREF
BVSS
TEST4
RRING2
RTIP2
TEST3
TEST2
RRING1
RTIP1
TEST1
NC
(TOP VIEW)
ASAHI KASEI [AK2540]
MS0012-E-00 2000/1
3
PIN CONDITION
Pin #
Pin Name
I/O
Pin Type
AC Load
DC Load
Comments
1
DFM3
O
CMOS
15pF
2
AIS3
I
CMOS
Note2)
3
TPOS3
I
CMOS
4
TNEG3
I
CMOS
5
TCLK3
I
CMOS
6
LOS3
O
CMOS
15pF
7
RPOS3
O
CMOS
15pF
8
RNEG3
O
CMOS
15pF
9
NC
10
RCLK3
O
CMOS
15pF
11
DFM4
O
CMOS
15pF
12
AIS4
I
CMOS
Note2)
13
TAVDD1
I
Power
14
NC
15
TAVSS1
I
Power
16
TPOS4
I
CMOS
17
TNEG4
I
CMOS
18
TCLK4
I
CMOS
19
LOS4
O
CMOS
15pF
20
RPOS4
O
CMOS
15pF
21
RNEG4
O
CMOS
15pF
22
RCLK4
O
CMOS
15pF
23
DAVSS2
I
Power
24
NC
25
IOVDD
I
Power
26
IOVSS
I
Power
27
NC
28
NC
29
AD0_LENG21
I/O
CMOS
50pF
30
AD1_LENG11
I/O
CMOS
50pF
31
AD2_LENG01
I/O
CMOS
50pF
32
AD3_LENG22
I/O
CMOS
50pF
33
AD4_LENG12
I/O
CMOS
50pF
34
AD5_LENG02
I/O
CMOS
50pF
35
AD6_LENG23
I/O
CMOS
50pF
36
AD7_LENG13
I/O
CMOS
50pF
ASAHI KASEI [AK2540]
MS0012-E-00 2000/1
4
Pin #
Pin Name
I/O
Pin Type
AC Load
DC Load
Comments
37
NC
38
R/W(WR)_LENG03
I
CMOS
39
AS(ALE)_LENG24
I
CMOS
40
DS(RD)_LENG14
I
CMOS
41
CS_LENG04
I
CMOS
42
BTS_AIS1SEL
I
CMOS
43
INT_LOMC
O
Open drain
PMOS
Open drain
44
HWMODE
I
CMOS
45
RESET
I
CMOS
46
SEL5V
I
CMOS
47
CLKE
I
CMOS
48
TEST8
I
CMOS
Note1)
49
RRING4
I
Analog
50
RTIP4
I
Analog
51
TESE7
I
CMOS
Note1)
52
TEST6
I
CMOS
Note1)
53
RRING3
I
Analog
54
RTIP3
I
Analog
55
TEST5
I
CMOS
Note1)
56
PVSS
I
Power
57
NC
58
MCLK
I
CMOS
59
MCLKSEL
I
CMOS
60
PVDD
I
Power
61
BVDD
I
Power
62
BGREF
O
Analog
12k
1% accuracy
63
BVSS
I
Power
64
TEST4
I
CMOS
Note1)
65
RRING2
I
Analog
66
RTIP2
I
Analog
67
TEST3
I
CMOS
Note1)
68
TEST2
I
CMOS
Note1)
69
RRING1
I
Analog
70
RTIP1
I
Analog
71
TEST1
I
CMOS
Note1)
72
NC
ASAHI KASEI [AK2540]
MS0012-E-00 2000/1
5
Pin #
Pin Name
I/O
Pin Type
AC Load
DC Load
Comments
73
NC
74
RAVSS
I
Power
75
RAVDD
I
Power
76
NC
77
JASELR
I
CMOS
Note2)
78
JASELT
I
CMOS
Note2)
79
NC
80
RCLK2
O
CMOS
15pF
81
RNEG2
O
CMOS
15pF
82
RPOS2
O
CMOS
15pF
83
LOS2
I
CMOS
15pF
84
NC
85
TCLK2
I
CMOS
86
TNEG2
I
CMOS
87
TPOS2
I
CMOS
88
NC
89
DAVSS1
I
Power
90
DVDD
I
Power
91
DVSS
I
Power
92
NC
93
TAVSS2
I
Power
94
TAVDD2
I
Power
95
NC
96
NC
97
AIS2
I
CMOS
Note2)
98
DFM2
O
CMOS
15pF
99
RCLK1
O
CMOS
15pF
100
NC
101
RNEG1
O
CMOS
15pF
102
RPOS1
O
CMOS
15pF
103
LOS1
O
CMOS
15pF
104
TCLK1
I
CMOS
105
TNEG1
I
CMOS
106
TPOS1
I
CMOS
107
AIS1
I
CMOS
Note2)
108
DFM1
O
CMOS
15pF