HMC235QS16G_01 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – 1 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, DC - 4 GHz

v01.0801
HMC235QS16G
MICROWAVE CORPORATION
1 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 4 GHz
Typical Applications
The HMC235QS16G is ideal for:
• Cellular
2
• PCS, WLL, LMDS
• IF applications.
Functional Diagram
Features
Wide Bandwidth: DC - 4 GHz
Attenuation Bits: 1, 2, 4, 8, 16 dB
Miniature QSOP - 16 Package
General Description
The HMC235QS16G is a broadband 5-bit digital
attenuator in a 16 - lead (narrow pitch) surface
mount QSOP plastic package 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.
2 - 42
Electrical Specifications, T_A = +25° C, With 0/-5V Control
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
7
2 - 4 GHz
4
Output Return Loss (All States)
DC - 2 GHz
10
2 - 4 GHz
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% RF)
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
Two-tone Input Power = +5 dBm Each Tone
0.05 GHz Min. Atten. State
24
0.05 GHz All Atten. States
23
0.5 - 4 GHz Min. Atten. State
38
0.5 - 4 GHz All Atten. States
22
Typical
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
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Visit us at www.hittite.com, or Email at [e-mail]