AM79M535-2JC AMD [Advanced Micro Devices], AM79M535-2JC Datasheet - Page 12

• Manufacturer Part Number: AM79M535-2JC
• Description: Metering Subscriber Line Interface Circuit
• Manufacturer: AMD [Advanced Micro Devices]

12
Z
Z
R
C
R
Z
T
RX
M
DCI
DC
D
=
=
=
=
=
+
510 Z
365
-------- -
-------------- -
V
R
I
V
---------- -
G
1.5 ms
T
M2W
Z
DC2
MG
42L
L
,
2WIN
=
C
------------------------------------------------------------------------ -
Z
-------------------------------------------------
Z
------------ -
I
2500
FEED
T
D
T
R
------------------------------- -
R
–
+
+
DC1
DC1
=
2R
1000 Z
510 Z
0.51 K
0.5 ms
---------------- -
K
F
+
1
R
R
R
D
DC2
DC2
L
+
1
T
2R
Z
L
F
Table 2. User-Programmable Components
2R
Z
T
F
+
Z
L
Am79M535 Data Sheet
Z
resistors are R
impedance. When computing Z
pole and any external stray capacitance between VTX and
RSN must be taken into account.
Z
above, and G
R
RDC pin. R
R
I
Z
V
2-wire output (usually 2.2 Vrms) and K
where: CX = The values of the identical capacitors from
T
T
RX
M
M2W
DC1
D
K
is the threshold current between on hook and off hook.
is connected between the VTX and RSN pins. The fuse
is connected from V
and C
1
is connected from V
, R
is the desired magnitude of the metering signal at the
DC2
D
=
form the network connected from RD to –5 V and
DC1
, and C
------------------------------------------------------------------------------------------------------------- -
1
=
42L
+
A and B to GND
F
2
, and Z
and R
j
is the desired receive gain.
DC
11.5 10
metering frequency
DC2
form the network connected to the
2WIN
MG
RX
are approximately equal.
(metering source) to the RSN pin,
is the desired 2-wire AC input
to the RSN pin, Z
9 –
T
+
, the internal current amplifier
1000
CX 2
1
(
36
) is defined below.
T
+
is defined
Z
L
+
2R
F