|
|
PDF UPD9903GT Data sheet ( Hoja de datos )
| Número de pieza | UPD9903GT | |
| Descripción | UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC | |
| Fabricantes | NEC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de UPD9903GT (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
|
No Preview Available !
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD9903
µPD9903 ANALOG SUBSCRIBER LINE LSI (DIGITAL CODEC)
The µPD9903 is a digital CODEC that can be used in analog subscriber circuits such as private branch exchangers
(PBXs) and switching equipment for central offices. It features three of the functions required for analog subscriber
circuits: 2W/4W conversion, CODEC supervision, and subscriber line supervision.
Use of the µPD9903 in combination with a BS-SLIC (µPC7073) can reduce the number of components required
in analog subscriber circuits.
FEATURES
• Single-chip monolithic LSI (CMOS)
• PCM CODEC → oversampling-type A/D and D/A converters
• Programmable functions
• Termination impedance
• Hybrid balance network
• Feed resistance
• Feed current
• PAD control
• A-law and µ-law
• Digital gain set function
• Ring-Trip function
• Single power supply (+5 V)
• Low power consumption during standby mode: 20 mW (TYP.)
ORDERING INFORMATION
Part Number
µPD9903GT
Package
48-pin plastic shrink SOP (375 mil)
The information in this document is subject to change without notice.
Document No. S10897EJ3V0DS00 (3rd edition)
Date Published June 1997 N
Printed in Japan
The mark shows major revised points.
©
1996
1 page  
µPD9903
1. PIN FUNCTIONS
Number
1-10
11
12
13
14
15
16
17
Pin Name
NC
AVDD
DVDD1
DVDD2
AUX/MODE
BSY
SUS
RST
18 EXS
19 EXD
20 HWR
21 DCLK
22 FS
23 HWX
24 TYPE
25 RTIN1
26 RTIN0
27 RC3
28 RC2
29 RC1
30 BCUT
31 ALM
32 PD
33 DGND2
34 DGND1
35 SUB
36 AGND
37 ACOMIN
38 ACOMOUT
39 AOUT
40 AIN
41 AGDT
42 ASCN
43 BBIN
I/O Function
– Leave this pin open.
– +5 V power supply (analog)
– +5 V power supply (digital)
– +5 V power supply (digital)
I External signaling input
O BUSY LED driver output
O SUS LED driver output
I Pin for reset input and power-on reset
H: HWX valid, L: HWX output’s internal F/F clear status
O SIPO sync signal output for expansion port Note 1
O SIPO serial data output for expansion port Note 1
I Reception highway input [PCM data (8-bit) + CTL data (8-bit)]
I Clock input (2.048 MHz)
I 8-kHz sync input Rising : HWR PCM data input start
Rising : HWX PCM data output start
Falling: HWR CTL data input start
Falling: HWX SCN data output start
O Transmission highway output [PCM data (8-bit) + SCN data (8-bit)]
O HWX data enable
I Ring-Trip signal input 2
I Ring-Trip signal input 1
O Relay control for network testing
O Relay control for line testing
O Relay control for ringer transmit
O High and wet control output
[to the µPC7073’s pin 22]
[to the µPC7073’s pin 21]
[to the µPC7073’s pin 20]
[to the µPC7073’s pin 19]
O Control output for ground-fault/power line contact protection mode
[to the µPC7073’s pin 18]
O Power-down control output
[to the µPC7073’s pin 17]
– Digital ground 2 Note 2
– Digital ground 1 Note 2
– Substrate ground Note 2
– Analog ground Note 2
I Signal ground input Note 3
O Signal ground output Note 3
O Analog signal output for receive side
[to the µPC7073’s pin 11]
[to the µPC7073’s pin 11]
[to the µPC7073’s pin 10]
I Analog signal input for transmit side
I Tip-Ring sum current detection input
I Tip-Ring difference current detection input
[to the µPC7073’s pin 9]
[to the µPC7073’s pin 8]
[to the µPC7073’s pin 7]
I VBB voltage information input
[to the µPC7073’s pin 6]
Notes 1. SIPO: Serial In Parallel Out
2. Short AGND, DGND1, DGND2, and SUB directly under the IC and connect them to an analog ground.
3. Short ACOMIN and ACOMOUT directly under the IC.
5
5 Page 
(5) ASCN and AGDT output pins
Parameter
Input bias current
Input resistance
Symbol
IB
RIN
Conditions
Input voltage: 0 to VDD
(6) ACOMOUT pin
Parameter
Output voltage
Symbol
VACOM
Conditions
I/O current: –0.1 to +0.1 mA
µPD9903
MIN.
–10
1
TYP.
MAX.
+10
Units
µA
MΩ
MIN.
2380
TYP.
MAX.
2420
Units
mV
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet UPD9903GT.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| UPD9903GT | UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC | NEC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |