SKY12325-350LF Datasheet, PDF (3/4 Pages) Skyworks Solutions Inc. – 3-Bit Digital Attenuator 500 MHz-6 GHz, 1 dB LSB

PRELIMINARY DATA SHEET • SKY12325-350
Absolute Maximum Ratings
Characteristic
Value
RF input power
30 dBm
Supply voltage
6V
Control voltage
Operating temperature
0 V < V_C < 6 V
-40 °C to +85 °C
Storage temperature
-65 °C to +150 °C
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
CAUTION: Although this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce poten-
tials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
Truth Table
Control Voltage¹
V₁
V₂
V_LOW
V_LOW
V_LOW
V_LOW
V_LOW
V_HIGH
V_LOW
V_HIGH
V_HIGH
V_LOW
V_HIGH
V_LOW
V_HIGH
V_HIGH
V_HIGH
V_HIGH
1. +2.7 V < V_HIGH < +5.5 V, -0.2 < V_LOW < +0.2 V.
2. Attenuation normalized to insertion loss
V₃
V_LOW
V_HIGH
V_LOW
V_HIGH
V_LOW
V_HIGH
V_LOW
V_HIGH
Attenuation
(dB)²
7
6
5
4
3
2
1
0
-350 (QFN 3 x 3)
Pin 1
Indicator
0.118 (3.00 mm)
0.118
(3.00 mm)
0.008 (0.20 mm)
Seating Plane
0.001
(0.02 mm)
0.067 (1.70 mm)
± 0.004 (0.10 mm)
Exposed Pad
0.059
(1.500 mm)
0.029
(0.73 mm)
0.030 (0.75 mm)
± 0.002 (0.05 mm)
0.067 (1.70 mm)
± 0.004 (0.10 mm)
Pin Out
VDD
V3
16 15
N/C 1
RF In/Out 2
V2
V₁
14 13
12 N/C
11 RF In/Out
N/C 3
10 N/C
N/C 4
5
6
GND GND
9 N/C
7
8
GND N/C
Pin Descriptions
Pin Number
1, 3, 4, 8,
9, 10, 12
2, 11
Pin Name
N/C
J₂
5, 6, 7
GND
13
V₁
14
V₂
15
V₃
16
V_DD
Description
Not connected
RF Input/Output - RF input or output port,
supply voltage input. External DC block
required
Equipotential Point - Equipotential points for
control voltages and RF circuits. Must be
connected to pcb ground via lowest possible
impedance
Control Voltage - High Impedance control
voltage input for 4 dB weighted bit (MSB)
Control Voltage - High Impedance control
voltage input for 2 dB weighted bit
Control Voltage - High Impedance control
voltage input for 1 dB weighted bit (LSB)
Supply Voltage - Supply voltage,
2.7 V < V_DD < 5.5 V
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.
0.059 (1.500 mm)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200243 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 27, 2006
3