AK2504A Datasheet PDF - AKM

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AK2504A
AKM

Part Number AK2504A
Description DS3/STS-1/ES Transceiver
Page 30 Pages


AK2504A datasheet pdf
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ASAHI KASEI
[AK2504A]
AK2504A
DS3/STS-1/E3 Transceiver
GENERAL DESCRIPTION
The AK2504A is a DSP based line transceiver. It
provides the analog transmit/receive line interface
functions for DS3(44.736MHz) /STS-1(51.84MHz)
www.DataSohreeEt43U(3.c4o.m368MHz) interface.
Transmitter includes on-chip pulse shaper, B3ZS/
HDB3 Encoder. Pulse level adjustment function is
very useful to put a pulse into pulse mask for any
customer’s system.
Receiver includes root-f equalizer, automatic-gain
control, clock and data recovery, B3ZS/HDB3
Decoder, Loss-Of-Signal and Loss-Of-Lock alarm
function.
Local and Remote Loop-back function is included
for system level trouble shooting.
The device operates at a single +3.3 Volt supply
and is transparent to the framing format.
FEATURE
- “Robust” DSP based line transceiver
- Provides Complete Analog Line Transmitter
and Receiver function for DS3, STS-1 and E3
Applications
- Transmit Pulse Level Adjustment
- Provides Line Equalization, and Clock and
Data Recovery Functions
- Compliance with Bellcore GR-499-CORE and
GR-253-CORE, ANSI T1.102, T1.404,
- Compliance with ITU-T G.703 and G.823
- Local/Remote Loopback functions
- B3ZS/HDB3 Encoder/Decoder
- Low voltage supply : +3.3V
PACKAGE
- 64 pin LQFP
APPLICATIONS
- Interfacing network transmission equipment
such as SONET multiplexor and M13 to a
DSX-3 cross connect.
- Interfacing E3 network transmission
equipment.
- Interfacing customer premises equipment to a
line.
MS0143-E-01
-1-
2004/01



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ASAHI KASEI
[AK2504A]
BLOCK DIAGRAM
RESET E3
61 43
LBO TAOS
60 35
PLA
56
TPDATA 24
www.DataSheeTt4NUD.AcToAm 25
23
TCLK
B3ZS/HDB3
ENCODER
NRZ
TCKPOL
RCKPOL
RCLK
RPDATA
RNDATA
/LCV
3
6
41
20
21
22
TEST1
TEST2
TEST3
TEST4
TEST5
TEST6
TEST7
46
9
27
26
19
58
40
B3ZS/HDB3
DECODER
TEST
CIRCUIT
LOOP
BACK
MUX
PULSE
SHAPER
CLOCK
RECOVERY
DATA
RECOVERY
LOS
LOGIC
11 12
13
VSSS VDDD VSSD
8 10
RLOOP LLOOP
42 62
LOSTHR RLOS
OUTPUT
DRIVER
39 TTIP
37 TRING
14 RLOL
7 EXCLK
51 EQDIS
GAIN and LINE
EQUALIZATION
30 28 55
TCAP1 TCAP2 IREF
45 RTIP
44 RRING
36 VDDT
29 VSST
38 VSST
59 VDDA
52 VDDV
53 VSSV
4 VDDP
5 VSSP
54 VDDB
57 VSSB
MS0143-E-01
-2-
2004/01



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ASAHI KASEI
PIN LOCATION
www.DataSheet4U.com
NC
NC
EQDIS
VDDV
VSSV
VDDB
IREF
PLA
VSSB
TEST6
VDDA
LBO
RESET
RLOS
NC
NC
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
[AK2504A]
32 NC
31 NC
30 TCAP1
29 VSST
28 TCAP2
27 TEST3
26 TEST4/eTX
25 TNDATA
24 TPDATA
23 TCLK
22 RNDATA/LCV
21 RPDATA
20 RCLK
19 TEST5
18 NC
17 NC
NC: No Connection. Leave these pins open.
MS0143-E-01
-3-
2004/01



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ASAHI KASEI
[AK2504A]
PIN CONDITION
No. Pin Name I/O Pin Type
Maximum
AC load
Minimum
DC load
Status on
Reset
Remarks
3 NRZ
I CMOS
4 VDDP
-
5 VSSP
-
6 TCKPOL I CMOS
7 EXCLK
I CMOS
8 RLOOP
I CMOS
9 TEST2
www.DataSheet4U.com
10 LLOOP
I CMOS
I CMOS
11 VSSS
-
12 VDDD
-
13 VSSD
14 RLOL
-
O CMOS
15pF
“H”
19 TEST5
20 RCLK
21 RPDATA
22
RNDATA
/LCV
23 TCLK
I
O
O
O
I
CMOS
CMOS
CMOS
CMOS
CMOS
15pF
15pF
15pF
“H”
“L”
“L”
24 TPDATA I CMOS
25 TNDATA I CMOS
26 TEST4
O CMOS
27 TEST3
28 TCAP2
I CMOS
O Analog
Note 1
29 VSST
30 TCAP1
-
O Analog
Note 1
Note:
*) NC pin number : No. 1, 2, 15, 16, 17, 18, 31, 32 NC: No Connection. Leave these pins open.
1)External capacitor (0.1 uF) is connected to VSS.
MS0143-E-01
-4-
2004/01



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