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參數(shù)資料
| 型號(hào)： | TP3071J |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | COMBO II Programmable PCM CODEC/Filter |
| 中文描述： | A/MU-LAW, PROGRAMMABLE CODEC, CDIP20 |
| 封裝： | CERAMIC, DIP-20 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 401K |
| 代理商： | TP3071J |
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TP3070, TP3071, TP3070-X
COMBO
II Programmable PCM CODEC/Filter
General Description
The TP3070 and TP3071 are second-generation combined
PCM CODEC and Filter devices optimized for digital switch-
ing applications on subscriber line and trunk cards. Using
advanced switched capacitor techniques, COMBO II com-
bines transmit bandpass and receive lowpass 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 functions may be
controlled via a serial control port.
Channel gains are programmable over a 25.4 dB range in
each direction, and a programmable filter is included to en-
able Hybrid Balancing to be adjusted to suit a wide range of
loop impedance conditions. Both transformer and active
SLIC interface circuits with real or complex termination im-
pedances can be balanced by this filter, with cancellation in
excess of 30 dB being readily achievable when measured
across the passband against standard test termination net-
works.
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 TP3070 pro-
vides 6 latches and the TP3071 5 latches.
Features
n
Complete CODEC and FILTER system including:
— Transmit and receive PCM channel filters
— μ-law or A-law companding encoder 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
— Hybrid balance cancellation filter
— Time-slot assignment; up to 64 slots/frame
— 2 port assignment (TP3070)
— 6 interface latches (TP3070)
— A or μ-law
— Analog loopback
— Digital loopback
n
Direct interface to solid-state SLICs
n
Simplifies transformer SLIC; single winding secondary
n
Standard serial control interface
n
80 mW operating power (typ)
n
1.5 mW standby power (typ)
n
Designed for CCITT and LSSGR applications
n
TTL and CMOS compatible digital interfaces
n
Extended temperature versions available for 40C to
+85C (TP3070V-X)
Note:
See also AN-614, COMBO II application guide.
COMBO
and TRI-STATE
are registered trademarks of National Semiconductor Corporation.
April 1994
T
1999 National Semiconductor Corporation
DS008635
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TP3070V | COMBO II Programmable PCM CODEC/Filter |
| TP3071 | COMBO II Programmable PCM CODEC/Filter |
| TP3071N | COMBO II Programmable PCM CODEC/Filter |
| TP3070J | COMBO II Programmable PCM CODEC/Filter |
| TP3070V-X | COMBO II Programmable PCM CODEC/Filter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TP3071N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:COMBO II Programmable PCM CODEC/Filter |
| TP3071NG | 制造商:National Semiconductor 功能描述:Audio Codec 1ADC / 1DAC 20-Pin PDIP Rail |
| TP3071N-G | 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 |
| TP3071N-G/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 |
| TP3072V-X | 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 |
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