HMC235QS16G Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 4 GHz

MICROWAVE CORPORATION
HMC235QS16G
GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 4 GHz
FEBRUARY 2001
Features
General Description
WIDE BANDWIDTH: DC - 4 GHz
ATTENUATION BITS: 1, 2, 4, 8, 16 dB
The HMC235QS16G is a broadband 5-bit
digital attenuator in a 16 - lead (narrow
pitch) surface mount QSOP plastic pack-
MINIATURE QSOP-16 PACKAGE
2
age with an exposed ground slug. This
package occupies the same area as an 8
lead SOIC package. The 1, 2, 4 and 8 dB
bits have less than 10 degrees relative
phase shift. The five primary attenuation
states can be activated independently, or
collectively for attenuation levels of 1 to 31
dB. The HMC235QS16G is ideal for cellu-
lar, PCS, WLL, LMDS and IF
applications.This is the smallest 5 bit digi-
tal attenuator available.
Guaranteed Performance With 0/-5V Control, -40 to +85 deg C
Parameter
Frequency
Min.
Insertion Loss
DC- 2 GHz
2 - 4 GHz
Attenuation Range
DC- 4 GHz
25
Input Return Loss (All States)
DC- 2 GHz
2 - 4 GHz
7
4
Output Return Loss (All States)
DC- 2 GHz
2 - 4 GHz
10
7
Attenuation Accuracy:
1 dB Bit
0.1 - 2 GHz
0.5
2 dB Bit
1.4
4 dB Bit
3.2
8 dB Bit
7.0
16 dB Bit
14.0
All Bits (31 dB)
26.0
Attenuation Accuracy:
1 dB Bit
2 - 4 GHz
0.5
2 dB Bit
1.3
4 dB Bit
3.2
8 dB Bit
7.0
16 dB Bit
14.0
All Bits (31 dB)
25.0
Switching Characteristics
tRISE, tFALL (10/90%)
tON, tOFF (50% CTL to 10/90% RF)
DC- 4 GHz
Input Power for 0.2 dB Compression
0.05 GHz Min. Atten. State
8
0.05 GHz All Atten. States
7
0.5 - 4 GHz Min. Atten. State
18
0.5 - 4 GHz All Atten. States
7
Input Third Order Intercept Point
each tone = +5dBm typ.
0.05 GHz Min. Atten. State
0.05 GHz All Atten. States
0.5 - 4 GHz Min. Atten. State
24
23
38
0.5 - 4 GHz All Atten. States
22
Typ.
5.0
5.3
31
12
7
18
11
1
2
4
8
16
31
1
2
4
8
16
31
3
6
12
11
24
12
28
30
44
32
Max.
5.4
6.0
1.5
2.6
4.8
9.0
17.9
35.0
1.5
2.7
4.8
9.0
17.9
35.0
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone]
2 - 44
Fax: [phone]
Web Site: www.hittite.com