参数资料
型号: HI5628EVAL1
厂商: Intersil
文件页数: 11/12页
文件大小: 0K
描述: EVALUATION BOARD FOR LQFPHI5628
标准包装: 1
DAC 的数量: 2
位数: 8
采样率(每秒): 125M
数据接口: 并联
设置时间: 15ns
DAC 型: 电流
工作温度: -40°C ~ 85°C
已供物品:
已用 IC / 零件: HI5628
Application Note 9840
Ground Connection
RGND 0 ?
DIGITAL GROUND PLANE
TP2
ANALOG
GROUND
TP1
DIGITAL
GROUND
ANALOG GROUND PLANE
E4 E5
ICOMP1
IOUTA
IOUTB
0 ?
R56
E6
(NOTE 3)
SMA1
SMA2
R22
50 ?
R25
50 ?
0 ?
R57
100 ?
R52
R51
0 ?
50 ?
IOUT
SMA5
V OUT = (2 x I OUT x R EQ )V
50 ? REPRESENTS THE SPECTRUM
ANALYZER INPUT IMPEDANCE.
QOUTB
R61
0 ?
NOTE 2
SMA3
R31
50 ?
0 ?
R70
R71
QOUT
SMA6
QOUTA
100 ?
50 ?
V OUT = (2 x Q OUT x R EQ )V
QCOMP1
R69
0 ?
E7
SMA4
R34
50 ?
R72
0 ?
50 ? IS THE SPECTRUM ANALYZER
INPUT IMPEDANCE.
0.1 μ F
C10
0.1 μ F
C4
E9 E8
NOTES:
1. AGND1 and DGND1 are tied together at a single point near the DAC. Optimum placement for Rgnd was found by iteration while observing the
spectral noise floor.
2. ICOMP1 and QCOMP1 MUST be tied together externally!
3. *E6 was mistakenly grounded so R56 should not be populated! E7, however, is correct and can be used to overdrive the internal reference op
amp for increasing the multiplying bandwidth.
11
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