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F1978 Datasheet(PDF) 19 Page - Renesas Technology Corp

Part # F1978
Description  6-Bit, 75Ω Digital Step Attenuator 5MHz to 3GHz
PDF  27 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

F1978 Datasheet(HTML) 19 Page - Renesas Technology Corp

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F1978 Datasheet
© 2017 Integrated Device Technology, Inc.
19
Rev O August 28, 2017
Evaluation Kit / Applications Circuit
Figure 23. Electrical Schematic
R3
C3
R4
C4
R5
C5
R6
C6
R7
C7
R8
R25
R26
C8
R27
8 pin DIP Switch
J2
HEADER 1x2
J4
HEADER 1x9
1
2
3
4
5
6
7
8
9
J7
VDD
J12
J5
HEADER 1x2
J13
Thru Cal
75 ohm
R21
R22
R23
C12
C15
U2
GND
RF2
F-TYPE
D0
D1
D2
D3
D4
D5
VMODE
VDD
GND
VLOGIC
VDD
Z0 = 75 OHM
RF1
F-TYPE
F-TYPE
F-TYPE
VDD
R24
LENGTH = RF1 + RF2
LINES
R9
C9
Z0 = 75 OHM
CLK
DATA
LE
J11
HEADER 4X2
R10
R11
R12
R13
R18
R16
U1
D5
1
RF1
2
DATA
3
CLK
4
LE
5
D4
15
RF2
14
VMODE
13
NC
12
GND
11
C13
C14
Logic Low
switch
to '-' position
Logic High
switch to '+' position
Open Circuit switch to 'O' position
R2
R1
VDD
J8
C10
C11
J3
HEADER 1x2
1
2
VDD
J1
C2
C1
J6



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