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參數(shù)資料
| 型號： | DS2176QN |
| 英文描述： | PCM Receiver |
| 中文描述： | 的PCM接收機 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 713K |
| 代理商： | DS2176QN |
DS2174 Design Kit
5 of 12
DS2174DK MEMORY MAP
The DS2174DK can be configured to suit a variety of needs. For example, this demo kit can be used as a stand-
alone design kit or it may be configured together with two DS2174DKs. The board can also be used with another
system by using the on-board microcontroller or disabling the microcontroller and using the address/data bus
header that is provided.
Table 2
shows how you can determine the base memory location for the DS2174 on the
board.
Table 2. Pin Definitions of Chip Select Header (J2)
PIN
NAME
PIN
MEMORY ADDRESS WHEN
JUMPER IS IN PLACE
Not Used
6000h to 6FFFh
5000h to 5FFFh
4000h to 4FFFh
3000h to 3FFFh
00h to 2FFFh
Not Used
Not Used
J2.1
J2.3
J2.5
J2.7
J2.9
J2.11
J2.13
J2.15
—
CS6
CS5
CS4
CS3
CS2
—
—
—
CS
CS
CS
CS
CS
—
—
J2.2
J2.4
J2.6
J2.8
J2.10
J2.12
J2.14
J2.16
DS2174DK TCLK SELECTION
The DS2174DK provides three separate sources for TCLK: an on-board crystal oscillator, analog input, or TCLK
from the system header.
Table 3
shows the different sources for TCLK and how to configure the DS2174DK.
Table 3. TCLK Selection
TCLK SOURCE
JMP3
JMP4
FUNCTION
OSC (Y2)
Open
Closed
RCLK can be wired to TCLK or
TCLKO on the system connector
Analog Input
Closed
Open
RCLK can be wired to TCLK or
TCLKO on the system connector
TCLK
Open
Open
RCLK can be wired to TCLKO or
driven on the system connector
POWER-SUPPLY CONNECTORS
Connect a 5.0V power supply across the red (V
DD
) and black (GND) banana jacks. The red PWR LED indicates
power is applied to the board. A voltage regulator then drops the supply to 3.3V, which is supplied to the DS2174. If
you want to bring 5.0V and 3.0V to the address/data bus header, the JMP5 and JMP7 connectors should be
closed.
MICROCONTROLLER AND SERIAL CONNECTOR
The DS2174DK has an on-board 8051 microcontroller with factory-installed firmware loaded in the microcontroller’s
EPROM. This firmware translates memory access requests from the RS-232 serial port (57.6kB) to the
write access for this device. Download the application from our website, www.maxim-ic.com/telecom
.
Close JMP1 and JMP2 to enable the on-board microcontroller. If you are using an external controller to
communicate with the DS2174, JMP1 and JMP2 must remain open to tri-state the address/data bus.
If desired, the user can access the memory location on the board through any serial terminal program. All the write
and read commands are distinguished with an “X” followed by the memory location. Depending on if it is a write or
a read, the user provides data to be written to the memory location or expects data from the device.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2176QN/T&R | 制造商:Maxim Integrated Products 功能描述:T1 ELASTIC STORE PLCC IND T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC BUFFER RECEIVE T1 IND 28-PLCC |
| DS2176QN/T&R | 功能描述:網(wǎng)絡控制器與處理器 IC T1 Receive Buffer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2178SN | 功能描述:IC ADAPTER CLOCK RATE 3V/5V RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應商設備封裝:* 包裝:* |
| DS218 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| DS21805 | 制造商:C&K Components 功能描述:SWITCH SNAP ACTION 制造商:C&K Components 功能描述:DS21805 / Alt#: HADS0012 / Series: COMAX |
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