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參數(shù)資料
| 型號： | TP3070 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | Codec |
| 英文描述： | COMBO II Programmable PCM CODEC/Filter(COMBO II可編程PCM信號編解碼器/濾波器) |
| 中文描述： | 組合二可編程PCM編解碼器/濾波器（組合二可編程的PCM信號編解碼器/濾波器） |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 401K |
| 代理商： | TP3070 |
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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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TP3071AN | COMBO II Programmable PCM CODEC/Filter |
| TP3071J | COMBO II Programmable PCM CODEC/Filter |
| TP3070V | COMBO II Programmable PCM CODEC/Filter |
| TP3071 | COMBO II Programmable PCM CODEC/Filter |
| TP3071N | COMBO II Programmable PCM CODEC/Filter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TP3070AJ | 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 |
| TP3070AJ-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 |
| TP3070AV | 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 |
| TP3070AV-G | 功能描述:IC INTERFAC PCM COMBO II 28-PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:COMBO®II 標(biāo)準(zhǔn)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(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) 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) |
| TP3070J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:COMBO II Programmable PCM CODEC/Filter |
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