參數(shù)資料
型號： TP3054J-1
元件分類： Codec
英文描述： u-Law CODEC
中文描述： U型法編解碼器
文件頁數(shù)： 1/16頁
文件大?。?/td> 250K
代理商： TP3054J-1
TL/H/5510
T
August 1994
TP3054, TP3057
‘‘Enhanced’’ Serial Interface
CODEC/Filter COMBO
é
Family
General Description
The TP3054, TP3057 family consists of
m
-law and A-law
monolithic PCM CODEC/filters utilizing the A/D and D/A
conversion architecture shown inFigure 1, and a serial PCM
interface. The devices are fabricated using National’s ad-
vanced double-poly CMOS process (microCMOS).
The encode portion of each device consists of an input gain
adjust amplifier, an active RC pre-filter which eliminates very
high frequency noise prior to entering a switched-capacitor
band-pass filter that rejects signals below 200 Hz and above
3400 Hz. Also included are auto-zero circuitry and a com-
panding coder which samples the filtered signal and en-
codes it in the companded
m
-law or A-law PCM format. The
decode portion of each device consists of an expanding
decoder, which reconstructs the analog signal from the
companded
m
-law or A-law code, a low-pass filter which
corrects for the sin x/x response of the decoder output and
rejects signals above 3400 Hz followed by a single-ended
power amplifier capable of driving low impedance loads.
The devices require two 1.536 MHz, 1.544 MHz or 2.048
MHz transmit and receive master clocks, which may be
asynchronous; transmit and receive bit clocks, which may
vary from 64 kHz to 2.048 MHz; and transmit and receive
frame sync pulses. The timing of the frame sync pulses and
PCM data is compatible with both industry standard formats.
Features
Y
Complete CODEC and filtering system (COMBO)
including:
D Transmit high-pass and low-pass filtering
D Receive low-pass filter with sin x/x correction
D Active RC noise filters
D
m
-law or A-law compatible COder and DECoder
D Internal precision voltage reference
D Serial I/O interface
D Internal auto-zero circuitry
Y
m
-law, 16-pinDTP3054
Y
A-law, 16-pinDTP3057
Y
Designed for D3/D4 and CCITT applications
Y
g
5V operation
Y
Low operating powerDtypically 50 mW
Y
Power-down standby modeDtypically 3 mW
Y
Automatic power-down
Y
TTL or CMOS compatible digital interfaces
Y
Maximizes line interface card circuit density
Y
Dual-In-Line or surface mount packages
Y
See also AN-370, ‘‘Techniques for Designing with
CODEC/Filter COMBO Circuits’’
Connection Diagrams
Dual-In-Line Package
TL/H/5510–1
Top View
Order Number TP3054J or TP3057J
See NS Package Number J16A
Order Number TP3054N or TP3057N
See NS Package Number N16A
Order Number TP3054WM or TP3057WM
See NS Package Number M16B
Plastic Chip Carriers
TL/H/5510–10
Top View
Order Number TP3057V
See NS Package Number V20A
COMBO
é
and TRI-STATE
é
are registered trademarks of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M125/Printed in U. S. A.
相關(guān)PDF資料
PDF描述
TP3057J-1 Rocker Switch; Circuitry:DPDT; Switch Operation:On-On; Contact Current Max:16A; Switch Terminals:Quick Connect; Actuator Color:White; Leaded Process Compatible:Yes; Mounting Type:Panel RoHS Compliant: Yes
TP3054 “Enhanced” Serial Interface CMOS CODEC/Filter(加強型串行接口CMOS編解碼器/濾波器)
TP3056BDWR PCM CODEC|SINGLE|CMOS|SOP|16PIN|PLASTIC
TP3056B MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
TP3056BDW MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TP3054J-X 制造商:未知廠家 制造商全稱:未知廠家 功能描述:u-Law CODEC
TP3054N 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TP3054N/NOPB 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TP3054N-X 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Extended Temperature Serial Interface CODEC/Filter COMBO Family
TP3054N-X/NOPB 功能描述:IC ENHANCED INTERFACE SER 16-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:COMBO® 標準包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態(tài)范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
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