BOWEI HE751-025

HE751-0.25
B O WEI
6-Bit Digital step Attenuators
BOWEI INTEGRATED CIRCUITS CO.,LTD.
Typical Performance
Insertion Loss VS. Frequency
I . L(dB)
-3
Features
Range:30~500MHz
film coustraction
●Hermetic package DIP-16
●Operating temperature range : -55℃ ~+85℃
●Frequency
Typical
30~500
30~500
dB
6.0
5.0
Att
dB
31.75±0.5
31.75±0.2
dB
0 . 25 , 0 . 5 , 1 ,
2 , 4 , 8 , 16
0 . 25 , 0 . 5 , 1 ,
2 , 4 , 8 , 16
–
Attenuation step
dB
±0. 1
±0. 2
VSWR
–
2.0: 1
1. 3:1
V co
–
TTL
–
Switching speed
T on
t
us
3.0
2. 0
DC Current
Icc
mA
“ △ ” Measured at TC=24±1℃
20
15
VSWR
Control voltage
–
VSWRo
1.6
VSWRi
1.4
1.2
500
250
Frequency(MHz)
Attenuation VS. Frequency
0
0.25dB
0.5dB
1dB
2dB
4dB
5
8dB
10
15
16dB
500
250
15
Frequency(MHz)
PIN Connection
Absolute Maximum Ratings
DC Supply: +6VDC
Input Power:+20dBm
Storage Temp:+125℃
1.8
1.0
15
±0.15(0.25,0.5,1,2)
±0. 3 ( 4 ,8,16, )
Attenuation
Accuracy
VSWR
Guaranteed
I.L
Attenuation
500
250
VSWR VS. Frequency
Attenuation(dB)
Insertion loss
Ta=+85℃
Ta=+25℃
Ta=-55℃
Frequency(MHz)
Specifications( measured in a 50Ωsystem ,Vcc=+5V, TA=-55℃~+85℃)
Symbol Unit
Frequency Range fL~fH MHz
-6
15
●Thin
Parameter
-4
-5
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
DIP-16
Application Notes
1 . Specificed frequency rang, attenuation
packages are available
2 . Interexchangable input and output ports
3 . Logic 0:Insertion Loss ; Logic 1:Attenuation
4 . M i nimun attenuation step 0. 5dB and 6 bits digital
attenuator is available
5.ESD observe handing precautions
6.Please add power first when use,make sure control port
contact with low level
PIN Function
8
7
6
5
3
2
PIN
Function
0 . 5dB
1
8dB
1dB
9
RFi
2dB
4dB
16
10 - 15
0 . 25dB
4
RFo
GND
V CC
16dB
HEXXX
● TEL:+86-311-87091891 87091887 ● FAX:+86-311-87091282 ● http://www.cn-bowei.com ● E-mail:cjian@cn-bowei.com
19