DC-2.4 GHz. AT90-1106 Datasheet

AT90-1106 Datasheet PDF, Equivalent


Part Number

AT90-1106

Description

Digital Attenuator/ 50 dB/ 6-Bit/ TTL Driver/ DC-2.4 GHz

Manufacture

Tyco Electronics

Total Page 6 Pages
PDF Download
Download AT90-1106 Datasheet PDF


AT90-1106 Datasheet
Digital Attenuator, 50 dB, 6-Bit,
TTL Driver, DC-2.4 GHz
V 5.00
Features
n Attenuation: 1 dB Steps to 50 dB
n Single Positive Supply
n Contains Internal DC to DC Converter
n Low DC Power Consumption
n Small Footprint, JEDEC Package
n Integral TTL Driver
n 50 ohm Impedance
CSP-1
Description
M/A-COM's AT90-1106 is a GaAs FET 6-bit digital
attenuator with integral TTL driver. Step size is 1 dB pro-
viding a 50 dB total attenuation range. This device is in a
FQFP-N plastic surface mount package. The AT90-1106 is
ideally suited for use where accuracy, fast speed, very low
power consumption and low costs are required.
Electrical Specifications TA = +25°C
Parameter
Test Conditions
Frequency Units Min Typical
Max
Insertion Loss
Attenuation
Accuracy
VSWR
Individual Bits 1-2-4-8-16-32 dB
Any Combination of Bits
1 to 50 dB
Full Range
DC - 2.4 GHz
DC - 2.4 GHz
DC - 2.4 GHz
DC - 2.4 GHz
dB
dB
dB
Ratio
Switching Speed
1 dB Compression
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
50 MHz
0.5 - 2.40 GHz
nS
nS
dBm
dBm
Input IP3
Two-tone inputs up to +5 dBm
50 MHz
0.5-2.4 GHz
dB
dB
+Vcc
— —V
4.75
5.5 6.0
— ±(.3 +5% of atten setting)
— ±(.5 +8% of atten setting)
1.8:1
75
20
+21
+29
+35
+48
5.0
2:1
150
50
5.25
Logic “0”
Logic “1”
Icc
Sink Current is 20 µA max.
Source Current is 20 µA max.
Vcc min to max,
Logic “0” or “1”
V 0.0
V 2.0
mA —
6
0.8
5.0
10

AT90-1106 Datasheet
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-1106
V 5.00
Pin Configuration
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Function
C16
C8
C4
C2
C1
C32
GND
NC
NC
NC1
GND
RF1
GND
NC
NC
NC
Pin #
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Function
NC
NC
+Vcc2
NC
Cp4
NC
Cp4
NC
-Vee3
GND
RF2
GND
NC1
-Vee3,5
NC
+Vcc2,6
1. Pins 10 & 29 must be isolated
2. Pin 19 must be connected to Pin 32
3. Pin 25 must be connected to Pin 30
4. .01µF cap must be connected between Pins 21 and 23
5. -Vee is produced internally and requires a .1µF cap to
GND
6. +Vcc requires a .1µF cap to GND
Truth Table
C32 C16 C8 C4 C2 C1 Attenuation
0 0 0 0 0 0 Loss, Reference
0 0 00 0 1
1.0 dB
0 0 00 1 0
0 0 01 0 0
2.0 dB
4.0 dB
0 0 10 0 0
0 1 00 0 0
1 0 00 0 0
8.0 dB
16.0 dB
32.0 dB
1 1 00 1 0
50.0 dB
0 = TTL Low; 1 = TTL High
Recommended PCB Layout 7
7. Application Note C2083 is available on line at
www.macom.com
Absolute Maximum Ratings 8
Parameter
Max. Input Power
0.05 GHz
0.5 - 2.4 GHz
+Vcc
Logic Voltages 9
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
+5.5V
-0.5 to +Vcc + 0.5V
-40°C to +85°C
-65°C to +125°C
8. Operation of this device above any one of these
parameters may cause permanent damange.
9. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
2


Features Datasheet pdf Digital Attenuator, 50 dB, 6-Bit, TTL Dr iver, DC-2.4 GHz V 5.00 AT90-1106 Fe atures n n n n n n n CSP-1 Attenuatio n: 1 dB Steps to 50 dB Single Positive Supply Contains Internal DC to DC Conve rter Low DC Power Consumption Small Foo tprint, JEDEC Package Integral TTL Driv er 50 ohm Impedance Description M/A-CO M's AT90-1106 is a GaAs FET 6-bit digit al attenuator with integral TTL driver. Step size is 1 dB providing a 50 dB to tal attenuation range. This device is i n a FQFP-N plastic surface mount packag e. The AT90-1106 is ideally suited for use where accuracy, fast speed, very lo w power consumption and low costs are r equired. Electrical Specifications TA = +25°C Parameter Insertion Loss Atten uation Accuracy VSWR Switching Speed 1 dB Compression Input IP3 +Vcc Logic “ 0” Logic “1” Icc Test Conditions — Individual Bits 1-2-4-8-16-32 dB An y Combination of Bits 1 to 50 dB Full R ange 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — Two-tone inputs up to +5 dBm — Sink Current is 20 µA max.
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