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參數(shù)資料
| 型號(hào)： | DS2165QL |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Codec |
| 英文描述： | A/MU-LAW, ADPCM CODEC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大小： | 313K |
| 代理商： | DS2165QL |
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092299
FEATURES
§ Compresses/expands 64 kbps PCM voice
to/from either 32 kbps, 24 kbps, or 16 kbps
§ 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
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 DS2167
ADPCM Processor Chip
§ Single +5V supply; low-power CMOS
technology
§ Available in 24-pin DIP and 28-pin PLCC
PIN ASSIGNMENT
DESCRIPTION
The DS2165 ADPCM Processor Chip is a dedicated Digital Signal Processing (DSP) chip that has been
optimized to perform Adaptive Differential Pulse Code Modulation (ADPCM) speech compression at
three different rates. The chip can be programmed to compress (expand) 64 kbps voice data down to (up
from) either 32 kbps, 24 kbps, or 16 kbps. The compression to 32 kbps follows the algorithm specified by
CCITT Recommendation G.721 (July 1986) and ANSI document T1.301 (April 1987). The compression
to 24 kbps follows ANSI document T1.303. The compression to 16 kbps follows a proprietary algorithm
developed by Dallas Semiconductor. The DS2165 can switch compression algorithms on-the-fly. This
allows the user to make maximum use of the available bandwidth on a dynamic basis.
DS2165/DS2165Q
16/24/32kpbs ADPCM Processor
www.dalsemi.com
28-PIN PLCC
NC
A0
A1
A2
A3
A4
FSY
YOUT
CS
SDI
SCLK
XOUT
A5
NC
TM1
TM0
RST
NC
VDD
YIN
CLKY
SPS
MCLK
VSS
NC
XIN
CLKX
FSX
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1
28
27
26
12
13 14
15
16
17
18
23
TM1
A1
A3
A4
A5
SPS
MCLK
VSS
VDD
YIN
CLKY
FSY
YOUT
CS
SDI
SCLK
XOUT
FSX
CLKX
XIN
1
2
3
4
5
6
7
8
9
10
11
12
24
22
21
20
19
18
17
16
15
14
13
TM0
A0
A2
RST
24-PIN DIP (600-mil
)
A 3-volt Operation Version
is Available (DS2165QL)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2165Q | A/MU-LAW, ADPCM CODEC, PQCC28 |
| DS2165QN | A/MU-LAW, ADPCM CODEC, PQCC28 |
| DS2172T | SPECIALTY TELECOM CIRCUIT, PQFP32 |
| DS2172TN | SPECIALTY TELECOM CIRCUIT, PQFP32 |
| DS2172 | SPECIALTY TELECOM CIRCUIT, PQFP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2165QL/T&R | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR 28PLCC - Tape and Reel |
| DS2165QL/T&R | 功能描述:音頻 DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| DS2165QN | 功能描述:音頻 DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| DS2165QN/T&R | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR 16/24/32KBS IND T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC ADPCM PROCESSOR PLCC 制造商:Maxim Integrated Products 功能描述:Audio DSPs 16/24/32kbps ADPCM Processor |
| DS2165QN/T&R+ | 制造商:Maxim Integrated Products 功能描述:ADPCM PROCESSOR PLCC IND T&R LF - Tape and Reel |
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