GaAs IC 5 Bit Digital Attenuator With Serial-to-Parallel Driver DC–2.5 GHz
AA109-310
Pin Out
Pin
1–4
5
Symbol
GND
J1
Function
Ground
RF Input/Output
Ground
6–19
20
GND
J2
RF Input/Output
Ground
Pin 32
Pin 1
21–25
26
GND
VCC
Vcc
10 kΩ
47 pF
Supply Voltage
Serial Clock Input
Serial Data Input
Latch Enable
Reset
GND
GND
GND
GND
J1
GND
GND
GND
GND
GND
GND
GND
J2
GND
GND
GND
27
SCK
SDA
LE
28
29
47 pF
30
RST
GND
SOut
31
Ground
32
Serial Data Output
Timing Diagram
LE
SCK
SDA
T1
T2
T3
T5
T4
Parameter
Symbol
Min.
Typ.
Max.
Unit
ns
LE Setup Time
SDA Setup Time
SDA Hold Time
LE Hold Time
Clock Period
T1
T2
T3
T4
T5
15
15
10
10
60
ns
ns
ns
ns
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
3
Specifications subject to change without notice. 3/01A
ALPHA [ ALPHA INDUSTRIES ]
