HMC221B 데이터 시트보기 (PDF) - Analog Devices
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HMC221B Datasheet PDF : 9 Pages
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Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
RF2 1
HMC221B
TOP VIEW
(Not to Scale)
6A
GND 2
5 RFC
RF1 3
4B
Figure 2. Pin Configuration
HMC221B
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1
RF2
RF2 Port (See Figure 4). This pin is dc-coupled and matched to 50 Ω. A dc blocking capacitor is required.
2
GND
Ground (See Figure 6). This pin must be connected to the RF/dc ground of the printed circuit board (PCB).
3
RF1
RF1 Port (See Figure 4). This pin is dc-coupled and matched to 50 Ω. A dc blocking capacitor is required.
4
B
Control Input A (See Table 4 and Figure 5).
5
RFC
RF Common Port (See Figure 3). This pin is dc-coupled and matched to 50 Ω. A dc blocking capacitor is required.
6
A
Control Input B (See Table 4 and Figure 5).
Table 4. Truth Table
Control Input Voltage1
A (V dc)
B (V dc)
Low
High
High
Low
RFC to RF1
On
Off
Signal Path State
RFC to RF2
Off
On
1 All high or all low for control inputs, A and B, are undefined states. The switch response has a high insertion loss and poor return loss on both RF paths.
INTERFACE SCHEMATICS
RFC
Figure 3. RFC Interface
RF1, RF2
A, B
Figure 5. A and B Interface
GND
Figure 4. RF1 and RF2 Interface
Figure 6. GND Interface
Rev. A | Page 5 of 9
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