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MAX3100CEE 参数 Datasheet PDF下载

MAX3100CEE图片预览
型号: MAX3100CEE
PDF下载: 下载PDF文件 查看货源
内容描述: 在QSOP - 16 SPI / MICROWIRE兼容的UART [SPI/Microwire-Compatible UART in QSOP-16]
分类和应用: 微控制器和处理器串行IO控制器通信控制器外围集成电路光电二极管数据传输PC时钟
文件页数/大小: 24 页 / 264 K
品牌: MAXIM [ MAXIM INTEGRATED PRODUCTS ]
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S P I/Mic ro w ire -Co m p a t ib le  
UART in QS OP -1 6  
ISO +5V  
+5V  
2k  
V
CC  
V
CC  
TX  
RX  
CS  
SCLK  
DIN  
CS  
470Ω  
SCLK  
DIN  
MAX310  
MAX3100  
MAX3100  
DOUT  
DOUT  
+5V  
2k  
RX  
TX  
GND  
GND  
470Ω  
Figure 8. Bidirectional Opto-Isolated Interface  
Table 8. Component and Supplier List  
FREQUENCY  
(MHz)  
TYPICAL  
C1, C2 (pF)  
PART  
NUMBER  
PHONE  
NUMBER  
DESCRIPTION  
SUPPLIER  
Through-Hole Crystal  
(HC-49/U)  
1.8432  
1.8432  
25  
ECS International, Inc.  
Murata North America  
ECS-18-13-1  
CSA1.84MG  
(913) 782-7787  
(800) 831-9172  
Through-Hole  
Resonator  
47  
Through-Hole Crystal  
(HC-49/US)  
3.6864  
3.6864  
3.6864  
33  
39  
ECS International, Inc.  
ECS International, Inc.  
AVX/Kyocera  
ECS-36-18-4  
ECS-36-20-5P  
PBRC-3.68B  
(913) 782-7787  
(913) 782-7787  
(803) 448-9411  
SMT Crystal  
None  
(integral)  
SMT Resonator  
This oscillator supports parallel-resonant mode crystals  
a nd c e ra mic re s ona tors , or c a n b e d rive n from a n  
external clock source. Internally, the oscillator consists  
of an inverting amplifier with its input, X1, tied to its out-  
put, X2, by a bias network that self-biases the inverter  
ified load capacitance of 11pF would use capacitors of  
22pF on either side of the crystal to ground. Series-res-  
onant mode crystals have a slight frequency error, typi-  
cally oscillating 0.03% higher than specified series-  
resonant frequency, when operated in parallel mode.  
at approximately V / 2. The external feedback circuit,  
CC  
It is very important to keep crystal, resonator, and  
load-capacitor leads and traces as short and direct as  
possible. The X1 and X2 trace lengths and ground  
tracks should be tight, with no other intervening traces.  
This helps minimize parasitic capacitance and noise  
pickup in the oscillator, and reduces EMI. Minimize  
capacitive loading on X2 to minimize supply current.  
usually a crystal, from X2 to X1 provides 180° of phase  
shift, causing the circuit to oscillate. As shown in the  
standard application circuit, the crystal or resonator is  
connected between X1 and X2, with the load capaci-  
tance for the crystal being the series combination of C1  
and C2. For example, a 1.8432MHz crystal with a spec-  
14 ______________________________________________________________________________________  
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