参数资料
| 型号： | MAX9979EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 42/60页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT MAX9979 |
| 标准包装： | 1 |
| 系列： | * |
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Dual 1.1Gbps Pin Electronics with Integrated
PMU and Level-Setting DACs
Comparator Cable-Droop Compensation
Control comparator cable-droop compensation using
the same serial bits used for the driver droop compen-
sation, CDRP_. Cable-droop compensation is active for
both the single-ended and the differential comparators.
Active Load
The active load is a linearly programmable current
source and sink, a commutation buffer, and a diode
bridge (Figure 5). Level-setting DACs VLDH_ and
VLDL_ set the sink and source currents from 0 to 20mA.
Level-setting DAC VCOM_ sets the commutation buffer
output voltage. The source and sink naming convention
is referenced to the MAX9979, so current out of the
MAX9979 constitutes source current and current into
the MAX9979 constitutes sink current.
The programmed source current loads the device
under test when V DUT _ < V COM _. The programmed
sink current loads the device under test when V DUT _ >
V COM _. The high-speed differential inputs
(RCV_/NRCV_) and three bits of the control word
(LLDIS_, LDCAL_, and TMSEL_) control the load.
LLEAKP_ and LLEAK_ place the load into low-leakage
mode. The low-leakage controls override other controls.
Table 9 details load control logic.
Table 9. Load Control Logic
Load Calibration Enable (LDCAL_)
LDCAL_ allows the load and driver to be simultaneously
enabled for diagnostic purposes. LDDIS_ overrides
LDCAL_.
Parametric Measurement Unit (PMU)
The MAX9979 PMU forces and measures voltages from
-1.5V to 6.5V, and currents up to ±50mA. The lowest
full-scale current range is ±2μA. Available PMU modes
are force-voltage/measure voltage (FVMV), force-volt-
age/measure current (FVMI), force-current/measure
current (FIMI), force-current/measure voltage (FIMV),
force-nothing/measure voltage (FNMV), and force-noth-
ing/measure nothing (FNMN). Figure 6 presents a block
diagram on the PMU.
PMU Current-Range Selection
Three bits from the control word (RS0, RS1, and RS2)
control the full-scale current range for both force-
current (FI) and measure-current (MI) modes. The PMU
ranges are independent of the programmed PMU
mode, except range A, which is not allowed in any cali-
bration mode. In these modes range A defaults to
range B (see Table 1). Table 10 presents the PMU cur-
rent-range control logic.
RCV_
X
X
0
X
1
1
X
TMSEL_
X
X
X
X
1
0
X
LDDIS_
X
X
0
1
0
0
0
LDCAL_
X
X
0
X
0
0
1
LLEAKS_
1
X
0
0
0
0
0
LLEAKP_
X
0
1
1
1
1
1
LOAD STATE
Low leak
Low leak
Off
Off
Off
On
On
Table 10. PMU Current-Range Control
DIGITAL INPUT
LLEAKP_
HIZFORCE_
SERIAL-INTERFACE BITS
RS2_ RS1_
RS0_
RANGE
X
X
X
X
X
0
1
X
X
X
X
0
1
1
0
0
0
0
1
1
1
0
0
1
1
X
X
X
0
1
0
1
X
X
X
E
D
C
B
B*
B*
A
*Range A operation is not allowed for PMU high-impedance modes—PMU defaults to range B.
42
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相关代理商/技术参数 |
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| MAX9979EVKIT+ | 功能描述:其他开发工具 MAX9979 Eval Kit RoHS:否 制造商:Parallax 产品:ELEV-8 Hex Upgrade Kits 类型:Robotics 工具用于评估:ELEV-8 Quadcopter 工作电源电压: |
| MAX9979KCTK+D | 制造商:Maxim Integrated Products 功能描述:DUAL 1.1GBPS PIN ELECTRONICS WITH INTEGRATED PMU AND LEVEL - Bulk 制造商:Maxim Integrated Products 功能描述:DUAL INTEGRATED PIN IC |
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| MAX997ESA | 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX997ESA+ | 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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