RFSA2714TR13 [RFMD]
Parallel Controlled Digital Step Attenuator 50MHz to 4000MHz;
| 型号： | RFSA2714TR13 |
| 厂家： | 
RF MICRO DEVICES |
| 描述： | Parallel Controlled Digital Step Attenuator 50MHz to 4000MHz 衰减器 射频 微波 |
| 文件： | 总9页 (文件大小：2704K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RFSA2714Par-
allelControlled
Digital Step
Attenuator,
50MHz to
RFSA2714
4000MHz
Parallel Controlled Digital Step Attenuator,
50MHz to 4000MHz
Package: QFN, 24-Pin, 4.2mm x 4.2mm
24
23
22
21
20
19
1
2
3
4
5
6
18
17
16
15
14
13
C0.25
VDD
N/C
N/C
N/C
N/C
RF2
N/C
N/C
Features
Logic Circuit
7 Bit DSA
Frequency Range 50MHz to
4000MHz
7-Bit, 31.75dB Range, 0.25dB
RF1
N/C
Step
High Linearity, IP3 >50dBm
3V and 5V Logic Compatible
On-chip Parallel Decoder
N/C
7
8
9
10
11
12
Parallel Programming Interface
On-chip ESD Protection >500V
HBM
Single Supply, 3V to 5V Operation
Functional Block Diagram
Applications
Product Description
Transceiver IF Applications
Cellular, PCS, GSM, UMTS, LTE,
WiMax/WiFi
RFMD's RFSA2714 is a 7-bit digital step attenuator (DSA) that features high linearity
over the entire 31.75dB gain control range with excellent step accuracy in 0.25dB
steps. The parallel-controlled RFSA2714 has an on-chip decoder that is both 3V and
5V compatible. The RFSA2714 also offers a rugged Class 1B HBM ESD rating via
on-chip ESD circuitry.
Wireless Data, Satellite
Terminals
Test Equipment
Ordering Information
RFSA2714SR
RFSA2714SQ
RFSA2714TR13
7” Sample reel with 100 pieces
Sample bag with 25 pieces
13” Reel with 2500 pieces
RFSA2714PCK-410 50MHz to 4GHz PCBA with 5-piece sample bag
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2012, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 21127409-9421 · For sales or techni-
cal support, contact RFMD at ((+1) 336-678-5570 or customerser-
DS130211
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RFSA2714
Absolute Maximum Ratings
Caution! ESD sensitive device.
Parameter
Supply Voltage
Rating
+5.5
Unit
V
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical perfor-
mance or functional operation of the device under Absolute Maximum Rating condi-
tions is not implied.
DC Supply Current
Power Dissipation
Max RF Input Power
15
mA
mW
dBm
°C
83
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any
infringement of patents, or other rights of third parties, resulting from its use. No
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended appli-
cation circuitry and specifications at any time without prior notice.
27
Operating Temperature (T
)
-40 to +85
CASE
Storage Temperature
Junction Temperature
ESD Rating (HBM)
-40 to +150
150
°C
°C
Class 1B
MSL1
Moisture Sensitivity Level
Specification
Parameter
Unit
Condition
Min.
Typ.
Max.
Frequency Range
Insertion Loss
50
4000
MHz
dB
dB
dB
dB
dB
dB
dBm
dBm
dB
0.85
1.1
1.7
2.1
31.75
150MHz, 0dB attenuation
850MHz, 0dB attenuation
2700MHz, 0dB attenuation
3800MHz, 0dB attenuation
0.25dB step size
Gain Control Range
Step Accuracy
Input IP3
Input P0.1dB
Return Loss
(0.1 + 5% attenuation setting)
50
25
15
100MHz to 4000MHz
1000MHz
DC to 3000MHz, all states
Parallel Interface
Control Interface
Settling Time
7-bit, Parallel
200
ns
ns
V
t
t
, t
(10%/90% RF)
RISE FALL
Switching Speed
200
, t
(50% CTL to 10%/90% RF)
ON OFF
Supply Voltage (V
Supply Current
)
4.75
5.0
7.5
5.25
DD
mA
V
Control Voltage (V
)
Low, V = 0 to 0.8
CTL
CTL
High, V = 2.0 to V
CTL
DD
Notes:
1. V = 5V, V = 5V, T = 25°C.
DD
CTL
2. Broadband Application Circuit (with ACG caps).
3. IIP3 measured with P = +10dBm/tone, 1MHz spacing.
IN
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
2 of 9
DS130211
RFSA2714
Typical Performance: Broadband Application Circuit (25°C)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
DS130211
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RFSA2714
Typical Performance: Broadband Application Circuit (25°C)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
4 of 9
DS130211
RFSA2714
Truth Table
Control Bit
Relative Gain
Setting
C16
1
C8
1
C4
1
C2
1
C1
1
C0.5
C0.25
1
1
0
1
1
1
1
1
0
1
0
1
1
1
1
1
1
0
Max gain
-0.25dB
-0.5dB
-1dB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
-2dB
1
1
0
1
1
-4dB
1
0
1
1
1
-8dB
0
1
1
1
1
-16dB
-31.75dB
0
0
0
0
0
Note: C0.25 = D0, C0.5 = D1, …, C16 = D6 (for the purpose of the example below)
Logic Voltage Levels
State
Low
Logic
0V to 0.8V
2.0V to 5.0V
High
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
DS130211
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RFSA2714
Pin Names and Description
Pin
1
2
3
4
5
6
7
8
Name
C0.25
VDD
NC
RF1
NC
Description
0.25dB Control Bit.
Power Supply.
No Internal Connection. EVB can be ground or no connect.
RF Port. External DC Block Required.
No Internal Connection. EVB can be ground or no connect.
No Internal Connection. EVB can be ground or no connect.
AC Ground Connection for Operation below 500MHz.
AC Ground Connection for Operation below 500MHz.
AC Ground Connection for Operation below 500MHz.
AC Ground Connection for Operation below 500MHz.
AC Ground Connection for Operation below 500MHz.
No Internal Connection. EVB can be ground or no connect.
No Internal Connection. EVB can be ground or no connect.
No Internal Connection. EVB can be ground or no connect.
RF Port. External DC Block Required.
NC
ACG
ACG
ACG
ACG
ACG
NC
NC
NC
RF2
NC
NC
NC
C16
C8
C4
C2
C1
C0.5
GND
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
EPAD
No Internal Connection. EVB can be ground or no connect.
No Internal Connection. EVB can be ground or no connect.
No Internal Connection. EVB can be ground or no connect.
16dB Control Bit.
8dB Control Bit.
4dB Control Bit.
2dB Control Bit.
1dB Control Bit.
0.5dB Control Bit.
DC and RF Ground. Must be soldered to EVB ground plane over a bed of vias for thermal and RF performance.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
6 of 9
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RFSA2714
Evaluation Board Assembly Drawing
P1
P2
C9
C1
C6 C5
C4
C3 C2
C12
J1
J2
RF1
RF2
U1
R8
C11
C18
SA2714410(A)
J100
J99
C19
C20
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
DS130211
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RFSA2714
Evaluation Board Schematic
J99
SMA
J100
SMA
C19
C20
1
1
GND
GND
C4/CLK
C4
C1
C3
C2/LE
P2
1
2
24
23
22
21
20
19
18
17
16
15
14
13
C025
C4/CLK
C1
GND
C5
GND
P1
3
C2
C8/PUP
VDD
GND
1
4
2
3
4
5
6
7
8
9
5
GND
C05/DATA
GND
C1
C025
C05/DATA
C05/DATA
C1
C2/LE
C4/CLK
C8/PUP
C16
6
C6
C16
7
GND
C8/PUP
C16
8
GND
GND
9
C025
10
11
12
CON9
C2/LE
C9
GND
UM232R
R7
U1
R8
C7
VDD
C8
1
18
17
16
15
14
13
C0.25
VDD
GND/NC
GND/NC
GND/NC
RF2
2
3
4
5
6
GND
GND
GND
GND/NC
RF1
GND
GND
J2
RF2
C11
C12
J1
RF1
1
1
GND
GND/NC
NC
GND/NC
NC
C18
GND
GND
GND
C13
GND
C15
GND
C14
C17
GND
GND
GND
C16
GND
Evaluation Board Bill of Materials (BOM)
Description
Reference Designator
Manufacturer
Dynamic Details (DDI) Toronto
RFMD
Manufacturer’s P/N
SA2714410(A)
SA2714410(A)
Digital Step Attenuator 50MHz to 4000MHz
CAP, 1000pF, 10%, 50V, X7R, 0402
CAP, 470pF, 10%, 50V, X7R, 0402
CAP, 680pF, 5%, 50V, C0G, 0402
RES, 0ꢀ, 0402
U1
RFSA2714SB
C7
C11-C12
Taiyo Yuden (USA), Inc.
Murata Electronics
Murata Electronics
Kamaya, Inc
RM UMK105BJ102KV-F
GRM155R71H471KA01E
GRM1555C1H681JA01D
RMC1/16SJPTH
SD-73251-4000
MPSS100-9-C
C14, C15, C16
R1-R8
CONN, SMA, END LNCH, UNIV, HYB MNT, FLT
CONN, HDR, ST, PLRZD, 9-PIN
CONN, SKT, 24-PIN DIP, .600", T/H
MOD, USB TO SERIAL UART, SSOP-28
DNP
J1-J2, J99-J100
P1
Molex
ITW Pancon
P2
Aries Electronics Inc.
Future Technology Devices Int'l
NA
24-6518-10
M1 (See Note Below)
C1-C6, C8-C9, C13, C17-C20
UM232R
NA
Note: M1 should be mounted into P2 with respect to the Pin 1 alignment of M1 and P2
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
8 of 9
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RFSA2714
Branding Drawing
4.000
SA2714
YYWW
Trace
4.000
Pin 1 Indicator
Fill in the YYWW Notation with the Date Code
YY = Year
WW = Week
Trace to be assigned by SubCon
Package Drawing
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ((+1) 336-678-5570 or customerservice@rfmd.com.
DS130211
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