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Part: AA264-87
Category:
Description: AA264-87:GaAs ic 4 Bit Digital Attenuator 2 DB...
Company: Alpha Industries
Datasheet: Download AA264-87 datasheet File size : 132 kB
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GaAs IC 4 Bit Digital Attenuator 2 dB LSB Positive Control 0.52 GHz
AA264-87 Features
Attenuation 2 dB Steps to 30 dB with High Accuracy Single Positive Control for Each Bit Low DC Power Consumption Small Low Cost TSSOP-16 Plastic Package
TSSOP-16
PIN 16 0.173 (4.40 mm) ± 0.004 (0.10 mm) PIN 1 INDICATOR PIN 1 0.197 (5.00 mm) ± 0.004 (0.10 mm) 0.047 (1.20 mm) MAX. 0.252 (6.4 mm) BSC
0.0256 (0.65 mm) BSC
R 0.004 (0.09 mm) MIN.
Description
The AA264-87 is a 4 bit, single positive control GaAs IC FET digital attenuator in a low cost TSSOP-16 package. The attenuator requires external DC blocking capacitors, positive supply voltage (VS) and four individual positive control voltages (V1V4). The AA264-87 is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include base station, wireless data and wireless local loop gain control circuits.
0.009 (0.22 mm) REF. 0.035 (0.90 mm) + 0.006 (0.15 mm) / -0.004 (-0.10 mm) 0.006 (0.15 mm) MAX. 0.002 (0.05 mm) MIN. 0.024 (0.60 mm) ± 0.006 (0.15 mm)
Electrical Specifications at -40°C to +85°C (0, +5 V)
Parameter1 Inser tion Loss Attenuation Range Attenuation Accuracy2 0.51.0 GHz 0.52.0 GHz 0.52.0 GHz VSWR (I/O)3 Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru VS = +3 V VS = +5 V For Two-tone Input Power +5 dBm VS = +3 V VS = +5 V 0.52.0 GHz 0.52.0 GHz 0.52.0 GHz 0.52.0 GHz +15 +21 +36 +37 0.50.8 GHz 0.82.0 GHz Condition Frequency 0.51.0 GHz 0.52.0 GHz Min. Typ. 1.6 1.8 30 ± (0.2 + 3% of Attenuation Setting in dB) ± (0.3 + 5% of 224 dB Setting) ± (0.3 + 6% of 2630 dB Setting) 1.8:1 1.5:1 150 300 70 +21 +27 +44 +45 2.2:1 2.0:1 ns ns mV dBm dBm dBm dBm Max. 2.0 2.4 Unit dB dB dB dB dB dB
Switching Characteristics4
Input Power for 1 dB Compression Intermodulation Intercept Point (IP3)
Control Voltages
VLow = 0 to 0.2 V @ 20 µA Max. VHigh = +3 V @ 100 µA Max. to +5 V @ 200 µA Max. VS = VHigh ± 0.2 V
3. Input/output. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
1. All measurements made in a 50 system, unless otherwise specified. 2. Attenuation referenced to insertion loss.
Skyworks Solutions, Inc. [781] 376-3000 · Fax [781] 376-3100 · Email sales@skyworksinc.com · www.skyworksinc.com
Specifications subject to change without notice. 9/00A
1
GaAs IC 4 Bit Digital Attenuator 2 dB LSB Positive Control 0.52 GHz
AA264-87
Typical Performance Data (0, +5 V)
0 -0.5 2.2 30 dB 2.0 1.8 16 dB 8 dB 4 dB 2 dB
Insertion Loss (dB)
-1.0
+85°C -2.0 -2.5 -3.0 -3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 +25°C
VSWR
-1.5
-40°C
1.6 1.4 1.2
Ins. Loss 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
60 +85°C 55 +25°C 2.2
VSWR vs. Frequency (25°C)
30 dB 2.0 1.8 16 dB 8 dB 4 dB 2 dB
IP3 (dBm)
VSWR
50 45 40 35
-40°C
1.6 1.4 1.2
Ins. Loss 1.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 0 0.5 1.0 1.5 2.0 2.5 3.0
Attenuation (dB)
Frequency (GHz)
IP3 vs. Attenuation and Temperature (500 MHz)
VSWR vs. Frequency (85°C)
Compression Point vs. Attenuation, Voltage, and Temperature
VSWR
Input Power @ 1 dB Compression Attenuation Control State Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm) Ins. Loss 5 29.0 28.9 29.0 2 dB 4 dB 8 dB 16 dB 30 dB 5 5 5 5 5 28.3 35.2 25.8 21.7 24.4 28.1 34.7 25.3 21.3 23.2 28.1 35.0 25.4 21.6 27.2
2.2 30 dB 2.0 1.8 1.6 1.4 1.2 Ins. Loss 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 16 dB 8 dB 4 dB 2 dB
Frequency (GHz)
VSWR vs. Frequency (-40°C)
2
Skyworks Solutions, Inc. [781] 376-3000 · Fax [781] 376-3100 · Email sales@skyworksinc.com · www.skyworksinc.com
Specifications subject to change without notice. 9/00A
GaAs IC 4 Bit Digital Attenuator 2 dB LSB Positive Control 0.52 GHz
AA264-87
1.0
Deviation from Nominal Attenuation (dB)
0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 0 0.5 1.0 1.5 4 dB 2 dB
8 dB
Deviation from Nominal Insertion Phase (Deg.)
0.5
30 dB 16 dB
85 75 65 55 45 35 25 15 5 -5 2.0 2.5 3.0 -15 0 0.5 1.0 1.5 2.0 2 dB 2.5 3.0 16 dB 8 dB 4 dB 30 dB
Frequency (GHz)
Frequency (GHz)
Attenuation Accuracy vs. Frequency (25°C)
1.0 85 8 dB
Attenuation Phase Accuracy vs. Frequency (25°C)
30 dB
Deviation from Nominal Attenuation (dB)
Deviation from Nominal Insertion Phase (Deg.)
0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 0 0.5 2 dB
16 dB
4 dB
75 65 55 45 35 25 15 5 -5 -15 30 dB 16 dB 8 dB 4 dB 2 dB 0 0.5 1.0 1.5 2.0 2.5 3.0
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Attenuation Accuracy vs. Frequency (85°C)
1.0 85 30 dB 16 dB 8 dB 2 dB 4 dB
Attenuation Phase Accuracy vs. Frequency (85°C)
Deviation from Nominal Attenuation (dB)
Deviation from Nominal Insertion Phase (Deg.)
0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 0 0.5
75 65 55 45 35 25 15 5 -5 -15 2 dB 0 0.5 1.0 1.5 2.0 2.5 3.0 30 dB 16 dB 8 dB 4 dB
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Attenuation Accuracy vs. Frequency (-40°C)
Attenuation Phase Accuracy vs. Frequency (-40°C)
Skyworks Solutions, Inc. [781] 376-3000 · Fax [781] 376-3100 · Email sales@skyworksinc.com · www.skyworksinc.com
Specifications subject to change without notice. 9/00A
3
GaAs IC 4 Bit Digital Attenuator 2 dB LSB Positive Control 0.52 GHz
AA264-87
Typical Performance Data (0, +3 V)
0 1.0
Deviation from Nominal Attenuation (dB)
-0.5
0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 2 dB 4 dB
16 dB 8 dB
Insertion Loss (dB)
-1.0 -1.5 -2.0 -2.5 -3.0 -3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 -40°C +85°C +25°C
30 dB
0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
Attenuation Accuracy vs. Frequency (25°C)
1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 0
2.2 30 dB 2.0 1.8 16 dB 8 dB 4 dB 1.6 1.4 1.2 Ins. Loss 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 2 dB
30 dB
Deviation from Nominal Attenuation (dB)
8 dB
2 dB 4 dB 16 dB
VSWR
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
VSWR vs. Frequency (25°C)
Attenuation Accuracy vs. Frequency (85°C)
1.0
90
Deviation from Nominal Insertion Phase (dB)
70 60 50 40 30 20 10 0 -10 0 4 dB 0.5 1.0 1.5 2.0 2 dB 2.5 3.0 30 dB 6 dB 8 dB
Deviation from Nominal Attenuation (dB)
80
0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 -3.5 0
30 dB
8 dB 2 dB 16 dB 4 dB
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Attenuation Phase Accuracy vs. Frequency (25°C)
4
Attenuation Accuracy vs. Frequency (-40°C)
Skyworks Solutions, Inc. [781] 376-3000 · Fax [781] 376-3100 · Email sales@skyworksinc.com · www.skyworksinc.com
Specifications subject to change without notice. 9/00A
GaAs IC 4 Bit Digital Attenuator 2 dB LSB Positive Control 0.52 GHz
AA264-87
57 55 53 51 49 47 45 43 41 39 37
+85°C +25°C -40°C
Compression Point vs. Attenuation, Voltage, and Temperature
Input Power @ 1 dB Compression Attenuation Control State Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm) Ins. Loss 3 21.7 21.6 22.6 2 dB 4 dB 8 dB 16 dB 30 dB 3 3 3 3 3 21.2 34.3 33.6 18.0 22.4 20.7 31.0 23.0 17.0 21.2 21.4 34.3 32.9 21.4 24.1
IP3 (dBm)
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Attenuation (dB)
IP3 vs. Attenuation and Temperature (500 MHz)
Absolute Maximum Ratings
Characteristic RF Input Power Value 1 W > 500 MHz 0/8 V 0.5 W @ 50 MHz 0/8 V +8 V -0.2 V, +8 V -40°C to +85°C -65°C to +150°C
Truth Table
V1 16 dB VHigh VHigh VHigh VHigh 0 0 V2 8 dB VHigh VHigh VHigh 0 VHigh 0 V3 4 dB VHigh VHigh 0 VHigh VHigh 0 V4 2 dB VHigh 0 VHigh VHigh VHigh 0 Attenuation J1J2 Reference I.L. 2 dB 4 dB 8 dB 16 dB 30 dB Max. Atten.
Supply Voltage Control Voltage Operating Temperature Storage Temperature
Note: Exceeding these parameters may cause irreversible damage.
Pin Out
CB L
16
GND GND V1 V2 V3 V4 GND GND
VHigh = +3 to +5 V (VS = VHigh ± 0.2 V).
16 dB
2 3 4 5 6 7 8
J1
GND GND GND GND GND GND
VS 10 k
DC blocking capacitors (CBL) and biasing resistor must be supplied externally for positive voltage operation. CBL = 47 pF for operation >500 MHz.
Skyworks Solutions, Inc. [781] 376-3000 · Fax [781] 376-3100 · Email sales@skyworksinc.com · www.skyworksinc.com
Specifications subject to change without notice. 9/00A
1
15 14 13 12
8 dB 4 dB 2 dB
11 10 9
CB L J2
5
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