- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366551 > AM79D2251 (Advanced Micro Devices, Inc.) Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) PDF資料下載
參數(shù)資料
| 型號： | AM79D2251 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) |
| 中文描述： | 雙智能用戶線音頻處理電路（ISLAC） |
| 文件頁數(shù)： | 1/35頁 |
| 文件大小： | 410K |
| 代理商： | AM79D2251 |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
Pub. #
22829
Rev
: C
Amendment
: /0
Issue Date:
December 1999
Intelligent Access
Voice Solutions
Am79D2251
Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC
)
DISTINCTIVE CHARACTERISTICS
I
High performance digital signal processor
provides programmable control of all major
linecard functions
—
32 and 24 kb/s ADPCM to G726, as well as
A-law/
μ
-law and linear codec
—
Transmit and receive gain
—
Two-wire AC impedance
—
Transhybrid balance
—
Equalization
—
DC loop feeding
—
Smooth or abrupt polarity reversal
—
Loop supervision
—
Off-hook debounce circuit
—
Ground-key and ring-trip filters
—
Ringing generation and control
—
Adaptive hybrid balance
—
Line and circuit testing
—
Tone generation
—
Metering generation at 12 kHz and 16 kHz
—
Envelope shaping and level control
I
Selectable PCM/MPI or GCI digital interfaces
—
Supports most available master clock
frequencies from 512 kHz to 8.196 MHz
I
0 to 70°C commercial operation
— –
40
°
C to 85
°
C extended temperature range
available
I
+3.3 V DC operation
I
Exceeds LSSGR and ITU requirements
I
Supports external ringing with on-chip ring-trip
circuit
—
Automatic or manual ring-trip modes
I
DTMF detection according to Q.24
I
2100 Hz modem tone detection according to V.25
BLOCK DIAGRAM
RC
Networks
and
Protection
A1
B1
A2
B2
Dual
ISLAC
ISLIC
ISLIC
LD1
VREF
7
AGND1
AGND2
RREF
BATP
BATH
Ring-Trip
Sense
Resistors
5
5
BATL
RSHB
RSLB
RSPB
VCCA
4
VCCD
DGND1
DGND2
TSCA/G
DRA/DD
DXA/DU
DCLK/S0
PCLK/FS
MCLK
FS/DCL
CS/RST
DIO/S1
INT
3
P1-P3
7
LD2
相關PDF資料 |
PDF描述 |
|---|---|
| AM79D2251JC | Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) |
| AM79D2251VC | Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) |
| AM79M535 | Metering Subscriber Line Interface Circuit |
| AM79M576A-1 | Metering Subscriber Line Interface Circuit |
| AM79M576A-1JC | Metering Subscriber Line Interface Circuit |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AM79D2251JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) |
| AM79D2251VC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Dual Intelligent Subscriber Line Audio-Processing Circuit (ISLAC) |
| AM79H1000 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| AM79H1000R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fiber-Optic Receiver |
| AM79H1000T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fiber-Optic Transmitter |
發(fā)布緊急采購，3分鐘左右您將得到回復。