Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifi cations subject to change without notice. 05.20.03
Page 1
33.02
29.7
2.54
48.26
51.26
12
33
5.4
1
9
10
18
Rx Filter
Tx Filter
2 to 4 wire
conversion
Transformer
Line Interface
Common
Mode
Choke
Line
Protection
Circuitary
TNV
Side
SELV
Side
3
4
5
10
11
12
14
15
16
9
8
18
2
20
1
17
ADSL CPE Hybrid
APC78164
BLOCK DIAGRAM
MECHANICAL
OPERATING TEMPERATURE -40C TO +85C
FEATURES
APC 78164 is designed to interface with Alcatel's MTK 20150 transceiver chip set (AFE Chip
20154), and EL1510C Line Driver, to optimize CPE (customer premises equipment designs).
The hybrid contains all of the components required between the AFE chip and the line connector including the line
interface transformer, common mode choke, longitudinal line protection circuitry and transmit and receive filters.
Excluding Line Driver and non-inverting I/P Capacitors.
The hybrid is designed to meet the requirements of safety per IEC60950 - reinforced Isolation.
The hybrid is designed to meet the requirements of Telcordia GR-1089 Surge and AC Power Fault.
1) ALL TRACES BETWEEN APC PINS 10 AND 14 AND ELANTEC LINE DRIVER PINS 3 AND 5 RESPECTIVELY MUST
BE KEPT SYMMETRICAL, PARALLEL AND EQUIDISTANT.
2) APP DIAGRAM SHOWS LOCATION OF 2 X 4 .7NF CAPACITORS TO BE ADDED EXTERNALLY.
Pin 1
TIP
Pin 11
EL1510C PIN 7
(OUTB)
Pin 2
RING
Pin 12
EL1510C PIN 6
(INB-)
Pin 3
TXP
Pin 13
N/C
Pin 4
TXN
Pin 14
EL1510C PIN 3
(INA+)
Pin 5
AGND - TX
Pin 15
EL1510C PIN 1
(OUTA)
Pin 6
N/C
Pin 16
EL1510C PIN 2
(INA-)
Pin 7
AGND - RX
Pin 17
LINE PWR 1
Pin 8
RXP
Pin 18
LINE PWR 2
Pin 9
RXN
Pin 19
N/C
Pin 10
EL1510C PIN 5
(INB+)
Pin 20
FIELD GROUND
SEE NOTE 2.
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