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부품번호 | Am79Q02 기능 |
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기능 | Quad Subscriber Line Audio-Processing Circuit Devices | ||
제조업체 | Legerity | ||
로고 | |||
전체 30 페이지수
Am79Q02/021/031
Quad Subscriber Line Audio-Processing Circuit
(QSLAC™) Devices
DISTINCTIVE CHARACTERISTICS
Performs the functions of four codec/filters
Software programmable:
— SLIC input impedance
— Transhybrid balance
— Transmit and receive gains
— Equalization (frequency response)
— Digital I/O pins
— Programmable debouncing on one input
— Time slot assigner
— Programmable clock slot and PCM transmit clock
edge options
Standard microprocessor interface
A-law, µ-law, or linear coding
Single or Dual PCM ports available
— Up to 128 channels (PCLK at 8.192 MHz) per
PCM port
— Optional supervision on the PCM highway
GENERAL DESCRIPTION
The Am79Q02/021/031 Quad Subscriber Line Audio-
Processing Circuit (QSLAC) devices integrate the key
functions of analog linecards into high-performance,
very-programmable, four-channel codec-filter devices.
The QSLAC devices are based on the proven design
of Legerity’s reliable SLAC™ device families. The
advanced architecture of the QSLAC devices
implements four independent channels and employs
digital filters to allow software control of transmission,
thus providing a cost-effective solution for the audio-
processing function of programmable linecards.
1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144,
6.176, or 8.192 MHz master clock derived from
MCLK or PCLK
Built-in test modes with loopback, tone
generation, and µP access to PCM data
Low-power, 5.0 V CMOS technology
5.0 V only operation
Mixed state (analog and digital) impedance
scaling
Performance characteristics guaranteed over a
12 dB gain range
Real Time Data register with interrupt (open
drain or TTL output)
Supports multiplexed SLIC inputs
Broadcast state
256 kHz or 293 kHz chopper clock for Legerity
SLICs with switching regulator
Maximum channel bandwidth for V.34 modems
Advanced submicron CMOS technology makes the
Am79Q02/021/031 QSLAC devices economical, with
both the functionality and the low power consumption
needed in linecard designs to maximize linecard
density at minimum cost. When used with four Legerity
SLICs, a QSLAC device provides a complete software-
configurable solution to the BORSCHT functions.
Publication# 080147 Rev: H Amendment: /0
Issue Date: September 2001
BLOCK DIAGRAM
Analog
VIN1
VOUT1
VIN2
VOUT2
VIN3
VOUT3
VIN4
VOUT4
VREF
SLIC
CD11
CD21
C31
C41
C51
CD12
CD22
C32
C42
C52
CD13
CD23
C33
C43
C53
CD14
CD24
C34
C44
C54
CHCLK
Quad SLAC Device
Signal Processing
Channel 1 (CH 1)
Signal Processing
Channel 2 (CH 2)
Signal Processing
Channel 3 (CH 3)
Signal Processing
Channel 4 (CH 4)
Time Slot Assigner
(TSA)
Clock
&
Reference
Circuits
SLIC
Interface
(SLI)
Microprocessor Interface
(MPI)
Dual/Single
PCM
Highway
DXA
DRA
TSCA
DXB
DRB
TSCB
FS
PCLK
MCLK/E1
RST
INT CS DIO DCLK
Microprocessor
19256A-001
4 Am79Q02/021/031 Data Sheet
4페이지 CONNECTION DIAGRAM (TQFP PACKAGE)
Top View
44-Pin TQFP
VOUT1
VIN1
VOUT2
VIN2
VCCA
VREF
AGND
VIN3
VOUT3
VIN4
VOUT4
44 43 42 41 40 39 38 37 36 35 34
1
2
3
4
5
6 Am79Q021VC
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
12 13 14 15 16 17 18 19 20 21 22
CS
DCLK
DIO
TSCA
DGND
PCLK
VCCD
DXA
FS
RST
INT
19256A-023
Notes:
1. Pin 1 is marked for orientation.
2. RSVD = Reserved pin; should not be connected externally to any signal or supply.
SLAC Products
7
7페이지 | |||
구 성 | 총 30 페이지수 | ||
다운로드 | [ Am79Q02.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
Am79Q02 | Quad Subscriber Line Audio-Processing Circuit Devices | Legerity |
Am79Q021 | Quad Subscriber Line Audio-Processing Circuit Devices | Legerity |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |