GHz 6-Bit Digital Phase Shifter

Transcription

1 ASL 2004P GHz 6-Bit Digital Phase Shifter Features Functional Diagram Frequency Range: 3.1 to 3.5 GHz RMS Error < 2 deg. 5 db Insertion Loss TTL Control Inputs 0.5-um InGaAs phemt Technology 28 Lead 7.0 x 7.0 x 0.8 mm 3 QFN Package NC 1 NC 2 Gnd 3 A1 A2 A3 A4 A5 A6 +5v v 20 NC 19 Gnd RF_In RF_Out Typical Applications Radar Military & Space Instrumentation Gnd 6 NC NC Gnd 15 NC Description The ASL2004P7 is a 6-bit digital phase shifter MMIC packaged in a QFN package. It is designed to operate over a frequency band of GHz. The phase shifter features a low RMS error of 2 deg (Max). The midband insertion loss is 4.7 db and varies within ± 0.5 db over the band and the 64 phase states. The input/output ports are well matched to 50 Ohms. The integrated TTL compatible drivers provide a convenient digital interface for 6-bit control. The package operates with +5V and -5V DC supply at a very low current. Absolute Maximum Ratings (1) Parameter Absolute Maximum Units RF Input Power 30 dbm Positive Supply Voltage +6 V Negative Supply Voltage -6 V Control Voltage ON OFF +5 to to 0 V V Operating Temperature -40 to +85 ºC Storage Temperature -65 to +150 ºC 1. Operation beyond these limits may cause permanent damage to the component Fax: Page 1 of 10

2 Electrical Specifications TA = 25 o C, Zo =50 Parameter Value Units Frequency GHz Phase Shift in 64 steps deg Insertion Loss (Typ.) 4.7 db Insertion Loss Variation ± 0.5 db Peak Phase Error -3 to +3 deg RMS Error (Max.) 2.0 deg Port1 Return Loss (Typ.) 10 db Port2 Return Loss (Typ.) 10 db Input Power for 1dB Compression 21 dbm DC Supply +5/6, -5/3 V/mA Control Voltage ON OFF TTL Compatible +5 0 V V Switching Speed 40 ns Note: 1. The above mentioned electrical specifications are measured on PCB mounted QFN package. Fax: Page 2 of 10

3 Test Fixture Data T A = 25 o C Insertion Loss Frequency (GHz) PPE Vs Frequency Frequency (GHz) Fax: Page 3 of 10

4 Test Fixture Data T A = 25 o C Port1 Return losses Frequency (GHz) Port2 Return losses Frequency (GHz) Fax: Page 4 of 10

5 Test Fixture Data T A = 25 o C RMS Error Frequency (GHz) Fax: Page 5 of 10

6 Pin Configuration +5v A6 A5 A4 A3 A2 A v 21 1 NC RF_Out NC 20 Gnd AMT P 28 Lead QFN 7mm x 7mm 2 NC 3 Gnd 4 RF_In 5 Gnd 16 NC Gnd NC NC NC NC NC NC NC NC BOTTOM VIEW Pin Description QFN PIN Nos. Description 4, 5 RF_IN 17, 18 RF_OUT Controls A1-A V 21-5V 3, 6, 16, 19 Gnd Note: All the Other Pins are Not Connected (NC), but need to be externally grounded on the PCB. Fax: Page 6 of 10

7 Test Board Pattern A1 A2 A3 A4 A5 A6 +5v -5v A A A A Note: 1. Dimensions in mm. 2. Circuit board material: Rogers 4350, 20mil 3. Input / Output signal lines have 50Ω impedance Fax: Page 7 of 10

8 Package Outline Drawing BOTTOM VIEW Note: All Dimensions are in mm Fax: Page 8 of 10

9 Truth Table State Phase Shift (deg.) A6 (180) TTL Control ( 1 = 3 to 5 V, 0 = 0 to 0.5 V ) A5 A4 A3 A2 (90) (45) (22.5) (11.25) A1 (5.625) Fax: Page 9 of 10

10 Truth Table State Phase Shift (deg.) A6 (180) TTL Control ( 1 = 3 to 5 V, 0 = 0 to 0.5 V ) A5 A4 A3 A2 (90) (45) (22.5) (11.25) A1 (5.625) GaAs MMIC devices are susceptible to Electrostatic discharge. Proper precautions should be observed during handling, assembly & testing All information and Specifications are subject to change without prior notice Fax: Page 10 of 10