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參數(shù)資料
| 型號： | DS2164Q |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 編解碼器 |
| 英文描述： | G.726 ADPCM Processor(G.726自適應(yīng)音頻脈沖編碼處理器) |
| 中文描述： | A/MU-LAW, ADPCM CODEC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 156K |
| 代理商： | DS2164Q |
DS2164Q
G.726 ADPCM Processor
DS2164Q
022698 1/17
FEATURES
Compresses/expands 64Kbps PCM voice to/from
either 32Kbps, 24Kbps, or 16Kbps as per the CCITT/
ITU G.726 specification
Dual, fully independent channel architecture; device
can be programmed to perform either:
– two expansions
– two compressions
– one expansion and one compression
Interconnects directly to combo-codec devices
Input to output delay is less than 375
μ
s
Simple serial port used to configure the device
Onboard Time Slot Assigner Circuit (TSAC) function
allows data to be input/output at various time slots
Supports Channel Associated Signaling
Each channel can be independently idled or placed
into bypass
Available hardware mode requires no host processor;
ideal for voice storage applications
Backward-compatible with the DS2165 ADPCM
Processor Chip
Single +5V supply; low-power CMOS technology
Available in 28-pin PLCC
PIN ASSIGNMENT
27
28
26
4 3 2
5
6
7
8
9
10
11
12 1314 15 16 1718
25
24
23
22
21
20
19
FSY
YOUT
CS
SDI
SCLK
XOUT
NC
NC
A0
A1
A2
A3
A4
A5
1
T
R
N
V
Y
C
X
F
S
M
V
T
N
C
28-Pin PLCC
DESCRIPTION
The DS2164Q ADPCM Processor Chip is a dedicated
Digital Signal Processing (DSP) chip that has been opti-
mized to perform Adaptive Differential Pulse Code Mod-
ulation (ADPCM) speech compression at three different
rates. The chip can be programmed to compress (ex-
pand) 64Kbps voice data down to (up from) either
32Kbps, 24Kbps, or 16Kbps. The compression follows
the algorithm specified by CCITT Recommendation
G.726. The DS2164Q can switch compression algo-
rithms on-the-fly. This allows the user to make maxi-
mum use of the available bandwidth on a dynamic ba-
sis.
OVERVIEW
The DS2164Q contains three major functional blocks: a
high performance (10 MIPS) DSP engine, two indepen-
dent PCM interfaces (X and Y) which connect directly to
serial Time Division Multiplexed (TDM) backplanes, and
a serial port that can configure the device on-the-fly via
an external controller. A 10 MHz master clock is re-
quired by the DSP engine. The DS2164Q can be confi-
gured to perform either two expansions, two compres-
sions, or one expansion and one compression. The
PCM/ADPCM data interfaces support data rates from
256 KHz to 4.096 MHz. Typically, the PCM data rates
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2164Q/T&R | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR 28PIN PLCC T&R - Tape and Reel |
| DS2164Q/T&R+ | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR 28P PLCC T&R LF - Tape and Reel |
| DS2164Q/T&R | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DS2164Q+ | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DS2164Q+T&R | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR 28PLCC - Tape and Reel |
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