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參數資料
| 型號： | TP3076 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | Codec |
| 英文描述： | COMBO II Programmable PCM CODEC/Filter for ISDN and Digital Phone Applications |
| 中文描述： | 組合二可編程PCM編解碼器/濾波器ISDN和數字電話應用 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 222K |
| 代理商： | TP3076 |
TP3076
COMBO
II Programmable PCM CODEC/Filter for ISDN
and Digital Phone Applications
General Description
The TP3076 is a second-generation combined PCM CODEC
and Filter devices optimized for digital switching applications
on subscriber line and trunk cards and digital phone applica-
tions. Using advanced switched capacitor techniques,
COMBO II combines transmit bandpass and receive low-
pass channel filters with a companding PCM encoder and
decoder. The devices are A-law and μ-law selectable and
employ a conventional serial PCM interface capable of being
clocked up to 4.096 MHz. A number of programmable func-
tions may be controlled via a serial control port.
Channel gains are programmable over a 25.4 dB range in
each direction.
To enable COMBO II to interface to the SLIC control leads, a
number of programmable latches are included; each may be
configured as either an input or an output. The TP3076 pro-
vides 4 latches.
Features
n
Complete CODEC and Filter system including:
— Transmit and receive PCM channel filters
— μ-law or A-law companding coder and decoder
— Receive power amplifier drives 300
— 4.096 MHz serial PCM data (max)
n
Programmable functions:
— Transmit gain: 25.4 dB range, 0.1 dB steps
— Receive gain: 25.4 dB range, 0.1 dB steps
— Time-slot assignment; to 64 slots/frame
— 4 interface latches
— A or μ-law
— Analog loopback
— Digital loopback
n
Direct interface to solid-state SLICs
n
Standard serial control interface
n
80 mW operating power (typ)
n
1.5 mW standby power (typ)
n
Designed for CCITT and LSSGR specifications
n
TTL and CMOS compatible digital interfaces
Note:
See also AN-614 COMBO II application guide.
Block Diagram
TRI-STATE
and COMBO
are registered trademarks of National Semiconductor Corporation.
MICROWIRE/PLUS
is a trademark of National Semiconductor Corporation.
DS009758-1
FIGURE 1.
April 1994
T
1999 National Semiconductor Corporation
DS009758
www.national.com
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| TP3094V | Quad PCM Codec/Filter |
| TP3155V | TP3155 Time Slot Assignment Circuit |
| TP3155N | TP3155 Time Slot Assignment Circuit |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TP3076AJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:A-Law/u-Law CODEC |
| TP3076J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:COMBO II Programmable PCM CODEC/Filter for ISDN and Digital Phone Applications |
| TP3076N-G/NOPB | 功能描述:IC INTERFACE PCM COMBO II 20-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:COMBO®II 標準包裝:2,500 系列:- 類型:立體聲音頻 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，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 供應商設備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| TP308 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| TP309 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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