파트넘버.co.kr XC145481 데이터시트 PDF


XC145481 반도체 회로 부품 판매점

3 V PCM Codec-Filter



Motorola Semiconductors 로고
Motorola Semiconductors
XC145481 데이터시트, 핀배열, 회로
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Product Preview
3 V PCM Codec-Filter
The XC145481 is a general purpose per channel PCM Codec–Filter with pin
selectable Mu–Law or A–Law companding, and is offered in 20–pin DIP, SOG,
and SSOP packages. This device performs the voice digitization and
reconstruction as well as the band limiting and smoothing required for PCM
systems. This device is designed to operate in both synchronous and
asynchronous applications and contains an on–chip precision reference
voltage.
This device has an input operational amplifier whose output is the input to the
encoder section. The encoder section immediately low–pass filters the analog
signal with an active R–C filter to eliminate very high frequency noise from being
modulated down to the passband by the switched capacitor filter. From the
active R–C filter, the analog signal is converted to a differential signal. From this
point, all analog signal processing is done differentially. This allows processing
of an analog signal that is twice the amplitude allowed by a single–ended
design, which reduces the significance of noise to both the inverted and
non–inverted signal paths. Another advantage of this differential design is that
noise injected via the power supplies is a common–mode signal that is
cancelled when the inverted and non–inverted signals are recombined. This
dramatically improves the power supply rejection ratio.
After the differential converter, a differential switched capacitor filter
bandpasses the analog signal from 200 Hz to 3400 Hz before the signal is
digitized by the differential compressing A/D converter.
The decoder accepts PCM data and expands it using a differential D/A
converter. The output of the D/A is low–pass filtered at 3400 Hz and sinX/X
compensated by a differential switched capacitor filter. The signal is then filtered
by an active R–C filter to eliminate the out of band energy of the switched
capacitor filter.
The XC145481 PCM Codec–Filter accepts a variety of clock formats,
including Short Frame Sync, Long Frame Sync, IDL, and GCI timing
environments.
The XC145481 PCM Codec–Filter utilizes CMOS due to its reliable
low–power performance and proven capability for complex analog/digital VLSI
functions.
Single 3 V Power Supply
Typical Power Dissipation of 12 mW, Power–Down of 0.01 mW
Fully Differential Analog Circuit Design for Lowest Noise
Transmit Band–Pass and Receive Low–Pass Filters On–Chip
Active R–C Pre–Filtering and Post–Filtering
Mu–Law and A–Law Companding by Pin Selection
On–Chip Precision Reference Voltage (0.886 V) for a –5 dBm TLP @ 600
Push–Pull 300 Power Drivers with External Gain Adjust
Order this document
by XC145481/D
XC145481
20
1
20
1
P SUFFIX
PLASTIC DIP
CASE 738
DW SUFFIX
SOG PACKAGE
CASE 751D
SD SUFFIX
SSOP
20 CASE 940C
1
ORDERING INFORMATION
XC145481P Plastic DIP
XC145481DW SOG Package
XC145481SD SSOP
PIN ASSIGNMENT
VAG–REF 1
RO– 2
PI 3
PO– 4
PO+ 5
VDD 6
FSR 7
DR 8
BCLKR 9
PDI 10
20 VAG
19 TI+
18 TI–
17 TG
16 Mu/A
15 VSS
14 FST
13 DT
12 BCLKT
11 MCLK
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.
REV 0
10/95
©MOMoTtoOroRla,OInLc.A1995
XC145481
1


XC145481 데이터시트, 핀배열, 회로
PACKAGE DIMENSIONS
-A-
20
1
-T-
SEATING
PLANE
E
GF
P SUFFIX
PLASTIC DIP
CASE 738–03
11
B
10
C
K
N
D 20 PL
0.25 (0.010) M T A M
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
L FLASH.
M
J 20 PL
0.25 (0.010) M T B M
INCHES
MILLIMETERS
DIM MIN MAX MIN MAX
A 1.010 1.070 25.66 27.17
B 0.240 0.260 6.10 6.60
C 0.150 0.180 3.81 4.57
D 0.015 0.022 0.39 0.55
E 0.050 BSC
1.27 BSC
F 0.050 0.070 1.27 1.77
G 0.100 BSC
2.54 BSC
J 0.008 0.015 0.21 0.38
K 0.110 0.140 2.80 3.55
L 0.300 BSC
7.62 BSC
M 0° 15° 0° 15°
N 0.020 0.040 0.51 1.01
DW SUFFIX
SOG PACKAGE
CASE 751D–04
–A–
20 11
–B– 10X P
0.010 (0.25) M B M
1 10
20X D
0.010 (0.25) M T A S B S
J
F
18X G
C
–T–
SEATING
PLANE
K
M
R X 45_
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.150
(0.006) PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D DIMENSION
AT MAXIMUM MATERIAL CONDITION.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 12.65 12.95 0.499 0.510
B 7.40 7.60 0.292 0.299
C 2.35 2.65 0.093 0.104
D 0.35 0.49 0.014 0.019
F 0.50 0.90 0.020 0.035
G 1.27 BSC
0.050 BSC
J 0.25 0.32 0.010 0.012
K 0.10 0.25 0.004 0.009
M 0_ 7_ 0_ 7_
P 10.05 10.55 0.395 0.415
R 0.25 0.75 0.010 0.029
XC145481
2
MOTOROLA




PDF 파일 내의 페이지 : 총 4 페이지

제조업체: Motorola Semiconductors

( motorola )

XC145481 filter

데이터시트 다운로드
:

[ XC145481.PDF ]

[ XC145481 다른 제조사 검색 ]




국내 전력반도체 판매점


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


XC145481

3 V PCM Codec-Filter - Motorola Semiconductors



XC145481DW

3 V PCM Codec-Filter - Motorola Semiconductors



XC145481P

3 V PCM Codec-Filter - Motorola Semiconductors



XC145481SD

3 V PCM Codec-Filter - Motorola Semiconductors