AG2130 Datasheet PDF - Silver
| Part Number | AG2130 | |
| Description | LOW COST PSTN INTERFACE | |
| Manufacturers | Silver | |
| Logo |  |
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Silver
TELECOM
Pb
• Approved to:
EN 60950-1:2001
IEC60950-1: First Edition 2001
AS/NZ60950-1: 2003
UL60950-1: 2003 1st Edition
CSA 22.2 No.60950-1-03 1st Edition
V1.4 September 2006
Ag2130Data Sheet
LOW COST PSTN
INTERFACE
FEATURES
• A highly featured PSTN Interface (COIC,
FXO, DAA, Trunk Interface) in a single
12mm high SIL device.
• +5V or +3.3V supply.
• Transformer isolation providing high
common-mode rejection (CMRR) for use in
un-grounded systems.
• Highly integrated with on-board loop switch
and diode bridge.
• Loop start circuit, ringing detect, line
detection and parallel phone detect.
• On-hook reception.
• Meets requirements of FCC Pt68.
• Low cost power cross protection.
• Programmable d.c. mask, line and network
impedances, allows use in any market.
• Silver Telecom “design-in” assistance.
DESCRIPTION
The Ag2130 is a self-contained highly
integrated PSTN Interface Circuit in a single
SIL module, which complies with ROHS
requirements.
In addition to the features listed, the Ag2130
allows flexible programming of many
functions, including the dc voltage mask and
impedances. The Ag2130 meets international
safety and regulatory requirements.
The device requires a minimum of external
components and has been specified for ease
of use, to allow reduced time to market.
The Ag2130 is designed for all applications,
including those where there is a high level of
common mode interference, such as PABX,
long loop applications and systems without a
ground connection.
© Silver Telecom 2006
|
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V1.4 September 2006
Data Sheet
Ag2130
LOW COST PSTN INTERFACE
eg.
2-wire
Impedance
ZT
Network
ZC
Balance
Zb1
Impedance
Zb2 Zb3
C3
1
600Ω
300Ω 47K
600Ω
100K 0R --- ---
2
CTR21
750R// 68K//
220nF 680pF
CTR21
220K//
680pF
5.1K
---
---
3
900Ω
620Ω 62K
900Ω
220K 0R --- ---
4
600Ω
300Ω
47K
100R
+1K//100nF
39K
39K 0R 1.5nF
Notes
USA Short Line,
Far East, Middle East
Europe
USA Long Line, Brazil
Japan
Table 2: Line and Network Balance Impedance Examples
3.2 The 2 Wire Impedance
The input impedance, ZIN, of the Ag2130 can be
programmed. This is achieved by connecting an
impedance matching network between ZT1 and ZT2.
This network is the line impedance to be matched
minus 300Ω. For example to match 600Ω, fit a 300Ω
resistor. Other common line impedances, and the
corresponding programming components are listed in
Table 2.
In addition to the programming network, an impedance,
ZC must be fitted between ZT2 and Zb to provide gain
and frequency compensation.
An alternative method of programming the 2 wire
impedance is to choose a codec where the internal
filter characteristics can be programmed to provide the
correct matching. In order to generate the filter
VCC
coefficients a model of the Ag2130 must be used. This
file, in .CIR format is available on request from Silver
Telecom or one of our representatives.
Full details on how the Codec is programmed must be
obtained from the Codec manufacturer.
3.3 Network Balance Impedance
The setting of the network balance impedance is very
similar to that of the 2 wire impedance. Again this can
be done by programming of the codec, using the .CIR
file, or it can be done by hardware components.
3.4 On-Hook Reception
The need for data exchange when on-hook is
becoming increasingly common. This may be required
for Caller Line I.D. or for telemetry purposes. The
ZT ZB2
ZC
ZB3
C3
ZB1 GND
VCC ZT1 ZT2
Zb
DMa Ag2130
VIN
R1 VOUT
C1
C2
DMb
For 600Ω application:
R1 = 390K
ZB1 = 100K
ZB2 = 0R
ZB3 = NF
ZT = 300R
ZC = 47k
C1, C2 = 100nF
C3 = NF
Silver
T E L E C O M GND
GND
Figure 3: Line Impedance and Network Balance Components
© Silver Telecom 2006
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AG2130 electronic component. |
| Information | Total 11 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AG2130.PDF Datasheet ] | |
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