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參數(shù)資料
| 型號： | TP3057J |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | Enhanced Serial Interface CODEC/Filter COMBO Family |
| 中文描述： | A-LAW, PCM CODEC, CDIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 671K |
| 代理商： | TP3057J |
TP3054-X, TP3057-X
Extended Temperature Serial Interface CODEC/Filter
COMBO
Family
General Description
The TP3054, TP3057 family consists of μ-law and A-law
monolithic PCM CODEC/filters utilizing the A/D and D/A
conversion architecture shown in
Figure 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 μ-law or A-law PCM format. The
decode portion of each device consists of an expanding
decoder, which reconstructs the analog signal from the com-
panded μ-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 de-
vices require two 1.536 MHz, 1.544 MHz or 2.048 MHz
transmit and receive master clocks, which may be asynchro-
nous; 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
n
40C to +85C operation
n
Complete CODEC and filtering system (COMBO)
including:
— Transmit high-pass and low-pass filtering
— Receive low-pass filter with sin x/x correction
— Active RC noise filters
— μ-law or A-law compatible COder and DECoder
— Internal precision voltage reference
— Serial I/O interface
— Internal auto-zero circuitry
n
μ-law, 16-pin—TP3054
n
A-law, 16-pin—TP3057
n
Designed for D3/D4 and CCITT applications
n
±
5V operation
n
Low operating power—typically 50 mW
n
Power-down standby mode—typically 3 mW
n
Automatic power-down
n
TTL or CMOS compatible digital interfaces
n
Maximizes line interface card circuit density
n
Dual-In-Line or PCC surface mount packages
n
See also AN-370, “Techniques for Designing with
CODEC/Filter COMBO Circuits”
Connection Diagrams
Plastic Chip Carriers
00867408
Top View
Order Number TP3057V-X
NS Package Number V20A
Dual-In-Line Package
00867401
Top View
Order Number TP3054N-X
NS Package Number N16E
Order Number TP3054WM-X
NS Package Number M16B
COMBO
and TRI-STATE
are registered trademarks of National Semiconductor Corporation.
March 2005
T
2005 National Semiconductor Corporation
DS008674
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TP3057N | Enhanced Serial Interface CODEC/Filter COMBO Family |
| TP3057V | Enhanced Serial Interface CODEC/Filter COMBO Family |
| TP3061 | UHF POWER TRANSISTOR NPN SILICON |
| TP3067 | ``Enhanced' Serial Interface CMOS CODEC/Filter COMBO |
| TP3067WM | ``Enhanced' Serial Interface CMOS CODEC/Filter COMBO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TP3057J-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:A-Law CODEC |
| TP3057N | 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 |
| TP3057N/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 |
| TP3057N/NOPB | 制造商:Texas Instruments 功能描述:, Peak Reflow Compatible (260 C):Yes |
| TP3057V | 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 |
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