- 您现在的位置：买卖IC网 > PDF目录16581 > EVAL-AD5700-1EBZ (Analog Devices Inc)BOARD EVAL HART MODEM AD5700 PDF资料下载
参数资料
| 型号： | EVAL-AD5700-1EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL HART MODEM AD5700 |
| 标准包装： | 1 |
| 主要目的： | 电信，调制解调器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD5700 |
| 主要属性： | HART? FSK 半双工调制解调器 |
| 已供物品： | 板 |
AD5700/AD5700-1
Data Sheet
Rev. F | Page 16 of 24
Table 7. Clock Configuration Options
XTAL_EN
CLK_CFG1
CLK_CFG0
CLKOUT
Description
1
0
No output
3.6864 MHz CMOS clock connected at XTAL1 pin
1
0
1
No output
1.2288 MHz CMOS clock connected at XTAL1 pin
1
0
No output
Internal oscillator enabled (AD5700-1 only)
1
1.2288 MHz output
Internal oscillator enabled, CLKOUT enabled (AD5700-1only)
0
No output
Crystal oscillator enabled
0
1
3.6864 MHz output
Crystal oscillator enabled, CLKOUT enabled
0
1
0
1.8432 MHz output
Crystal oscillator enabled, CLKOUT enabled
0
1
1.2288 MHz output
Crystal oscillator enabled, CLKOUT enabled
SUPPLY CURRENT CALCULATIONS
The VCC and IOVCC current consumption specifications shown
in Table 2 are derived using the internal reference and an
external clock source. This specification is given for a
maximum temperature of 85oC (115 A receive current and
140 A transmit current) and an extended maximum
temperature of 125oC (179 A receive current and 193 A
transmit current). Alternatively, if the external reference is
preferred, (assuming a maximum temperature of 85oC), the
receive and transmit supply current values become 118 A and
129 A respectively, including the current required by the
external reference. A similar calculation can be done for the
125oC maximum temperature case.
If the crystal oscillator or internal oscillator is used, VCC and
IOVCC current consumption figures return to the 115 A receive
current and 140 A transmit current. However, the resultant
current consumption from the crystal oscillator or internal
oscillator must now be accounted for, 60 A maximum addi-
tional current for the crystal oscillator, or 285 A maximum
additional current for the internal oscillator option. This gives
a maximum current consumption of 175 A in receive mode
and 200 A in transmit mode, when using the internal reference
and the crystal oscillator. Utilizing the internal reference
and the internal oscillator (AD5700-1 only) results in a total
maximum current consumption of 400 A for receive current
and 425 A for transmit current.
POWER-DOWN MODE
by holding the RESET pin low. If using the internal reference, it
is recommended to tie the REF_EN pin to the RESET pin so
that it is also powered down. If the reference is not powered
down while RESET is low, the output voltage on the REF pin is
approximately 1.7 V until RESET is brought high again.
In this mode, the receive, transmit, and oscillator circuits are all
switched off, and the device consumes a typical current of 16 A.
FULL DUPLEX OPERATION
Full duplex operation means that the modulator and demodula-
tor of the AD5700/AD5700-1 are enabled at the same time. This
is a powerful feature, enabling a self-test procedure of not only
the HART device but also the complete signal path between the
HART device and the host controller. This provides verification
that the local communications loop is functional. This increased
level of system diagnostics is useful in production self-test and
is advantageous in improving the application’s safety integrity
level (SIL) rating. The full duplex mode of operation is enabled by
connecting the DUPLEX pin to logic high.
相关PDF资料 |
PDF描述 |
|---|---|
| CI160808-2N2D | INDUCTOR MULTI LAYER CHIP 2.2NH |
| EVAL-ADG854EBZ | BOARD EVAL FOR ADG854 |
| AH293-YL-13 | IC HALL FAN CTRLR 400MA SOT89-5 |
| EVAL-AD5273DBZ | BOARD EVAL FOR AD5273DBZ |
| ECM28DCAN-S189 | CONN EDGECARD 56POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD5750EBZ | 功能描述:BOARD EVAL FOR AD5750 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-AD5754REBZ | 功能描述:BOARD EVAL FOR AD5754R RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| EVAL-AD5755-1SDZ | 功能描述:BOARD EVAL FOR AD5755-1 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| EVAL-AD5755SDZ | 功能描述:BOARD EVAL FOR AD5755 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| EVAL-AD5757SDZ | 功能描述:BOARD EVAL FOR AD5757 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
发布紧急采购，3分钟左右您将得到回复。