IDT ERJ-2RKF20R0X Matched broadband rf vga Datasheet

IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
GENERAL DESCRIPTION
FEATURES
This document describes the specifications for the
IDTF0480 400 MHz to 2700 MHz RF Digital Variable Gain
Amplifier used in receiver, transmitter and other
applications.
•
•
•
•
•
•
•
•
•
•
•
•
IDTF0480 RF DVGA provides 13 dB typical maximum
gain (no attenuation) with 4 dB noise figure and 23 dB
gain adjustment in 1 dB steps designed to operate
with a single 5 V supply. Nominally, the device offers
+41 dBm output IP3 using 100 mA of ICC.
This device is packaged in a 5x5 32-pin thin QFN with
50 ohm single-ended RF input and RF output
impedances for ease of integration into the signal-path
lineup.
•
400 MHz – 2700 MHz
< 1 dB overshoot between gain transitions
13 dB typical max gain
23 dB gain range, 1 dB gain step resolution
Excellent linearity +41 dBm OIP3
Noise Figure 4 dB
ICC = 100 mA
1.3 mA standby current
SPI interface
50 Ω input and output impedance
Broadband, Internally Matched
Gain increases vs. frequency to counteract
system board losses
5x5 32-pin TQFN package
DEVICE BLOCK DIAGRAM
COMPETITIVE ADVANTAGE
In many applications, digital step attenuators followed
by RF amplifiers are used in the Receive path. The
IDTF0480 RF DVGA provides very high reliability by
combining a silicon Glitch-FreeTM DSA & a ZeroDistortionTM RF amplifier in a single, compact QFN
package. Utilizing IDT’s technology, the resultant RF
VGA provides +41 dBm OIP3 performance across a very
wide bandwidth of 400 MHz to 2700 MHz at
approximately 100 mA of current. Furthermore the
device is internally matched so there is no need to
optimize external matching elements.
TM
Zero-Distortion TM
TM
Glitch-Free TM
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
•
Multi-mode, Multi-carrier Receivers
PCS1900 Base Stations
DCS1800 Base Stations
WiMAX and LTE Base Stations
UMTS/WCDMA 3G Base Stations
PHS/PAS Base Stations
Point to Point Infrastructure
Public Safety Infrastructure
Broadband Repeaters
GPS Receivers
Distributed Antenna Systems
Cable Infrastructure
Digital Radio
Glitch-FreeTM, Zero-DistortionTM, RF VGA
ORDERING INFORMATION
Omit IDT
prefix
0.75 mm height Tape &
Reel
package
IDTF0480NBGI8
RF product Line
1
Green
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Units
VCC to GND
VCC
-0.3
+5.5
V
SPI DATA, SPI CSb, SPI CLK, LogicCTL
VdiD
-0.3
+3.6
V
STBY, Band_Select
VCntl
-0.3
Vcc + 0.25
V
+1.5
mA
R_Bias1
R_Bias2
IR1
+0.8
mA
RFIN externally applied DC voltage
VRFin
IR1
+1.4
+3.6
V
RFOUT externally applied DC voltage
VRFout
Vcc - 0.15
Vcc + 0.15
V
RF Input Power (RFIN) applied for 24
hours maximum
Pin
+22
dBm
Continuous Power Dissipation
Pdiss
1.5
W
Junction Temperature
Tj
150
°C
Storage Temperature Range
Tst
150
°C
260
°C
-65
Lead Temperature (soldering, 10s)
ElectroStatic Discharge – HBM
(JEDEC/ESDA JS-001-2012)
Class 2
(2000 V)
ElectroStatic Discharge – CDM
(JEDEC 22-C101F)
Class C2
(500 V)
Stresses above those listed above may cause permanent damage to the device. Functional operation of the device at
these or any other conditions above those indicated in the operational section of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL AND MOISTURE CHARACTERISTICS
θJA (Junction – Ambient)
θJC (Junction – Case) The Case is defined as the exposed paddle
Moisture Sensitivity Rating (Per J-STD-020)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
2
40 °C/W
4 °C/W
MSL1
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage(s)
Operating Temperature
Range
Symbo
l
VCC
TCASE
Conditions
Min
Typ
Max
Unit
s
All VCC pins
4.75
5.25
V
Case Temperature
-40
+105
°C
400
2700
MHz
RF Freq Range
FRF
Operating Range
RF Source Impedance
ZRFI
Single Ended
50
Ω
RF Load Impedance
ZRFO
Single Ended
50
Ω
Glitch-FreeTM, Zero-DistortionTM, RF VGA
3
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 SPECIFICATION
See F0480 Typical Application Circuit. Specifications apply when operated as an RF DVGA, VCC = +5.00 V,
TC = +25 °C, Max gain setting, output power = 0 dBm, ZRFI = ZRFO = 50 Ω, unless otherwise noted.
Parameter
Symbol
Conditions
Logic Input High
VIH
JEDEC 3.3V logic
Logic Input Low
VIL
JEDEC 3.3V logic
Logic Input High
VIH
JEDEC 1.8V logic
Logic Input Low
VIL
Logic Current
IIH, IIL
2.0
Typ
SPI_
Max
1
Units
V
0.8
V
1.1
V
0.63
+10
+4
+35
JEDEC 1.8V logic
STBY, Band_Select
Logic CTL
Supply Current3
Min
-10
-4
-35
V
µA
ICC_LB
Low Band Configuration
100
ICC_MB
Mid Band Configuration
117
ICC_HB
High Band Configuration
109
Standby Mode
1.3
50% of STBY going low to
Gain within ± 1 dB with no
attenuation.
250
ns
ICC_STBY
Startup time
128
mA
1.7
Gain adjustment range
GADJ
23
dB
Gain step
GSTEP
1
dB
Step from 15 to 16 dB or 16 to
15 dB
0.5
dB
50% of CSb to ± 0.1 dB of
settled gain
500
ns
Max Attenuator Glitch
Gain Settling Time
ATTNG
GST
10
Serial Clock Speed
MHz
CSb to first serial clock
rising edge
A
SPI 3 wire Bus. 50% of CSb
falling edge to 50% of CLK
rising edge.
10
ns
Serial Data Hold Time
B
SPI 3 wire Bus. 50% of CLK
rising edge to 50% of Data
falling edge.
10
ns
Final serial clock rising
edge to CSb
C
SPI 3 wire Bus. 50% of CLK
rising edge to 50% of CSB
rising edge.
10
ns
Note 1: Items in min/max columns in bold italics are Guaranteed by Test.
Note 2: Items in min/max columns that are not bold/italics are Guaranteed by Design Characterization.
Note 3: During standby mode, SPI is to be left ON and previous state shall be maintained when device is powered up.
Glitch-FreeTM, Zero-DistortionTM, RF VGA
4
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 SPECIFICATION - LOWBAND PERFORMANCE
See F0480 Typical Application Circuit. Specifications apply when operated as an RF DVGA, VCC = +5.00 V,
TC = +25 °C, FRF = 900 MHz, Band_Select = LB setting, Max gain setting, output power = 0 dBm,
ZRFI = ZRFO = 50 Ω, the evaluation board and connector losses are de-embedded, unless otherwise noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
RF input return loss
RLIN_LB
15
dB
RF output return loss
RLOut_LB
20
dB
GMAX_LB
Gain
Step Error
11.5
-11.2
12.6
-10.2
13.4
-9.4
GMIN_LB
Maximum attenuation
GTEMP_LB
Variation over Temperature
GVAR_LB
Max gain variation over
frequency5
0.1
GACC_LB
Between adjacent states
± 0.1
dB
± 0.3
dB
Absolute Error
GABSACC_LB
Relative to maximum gain
± 0.2
dB
Phase deviation
GPH_ADJ_LB
Between adjacent states at
maximum gain
1
Deg
NFLB
Noise Figure
NFLB_MG
NFLB_RG
Output Third Order
Intercept Point
Output 0.2 dB Power
Compression
Tcase = +105 °C
4.8
22 dB attenuation
25.9
OIP3_LB-1
Pout = 0 dBm/Tone,
1 MHz tone separation
41.5
OIP3_LB-2
Pout = -10 dBm/Tone,
1 MHz tone separation
40.5
OIP3_LB-3
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
OIP3_LB-6dB
Output 1 dB Power
Compression
3.9
39
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
OP0.2dB_LB
Output Saturated Power
PSAT_LB
Reverse Isolation
REVISO_LB
dBm
41
20.6
OP1dB_LB
41
dB
3 dB compression
22.2
dBm
20
dBm
22.3
dBm
18
dB
Note 5: Including frequency and ripple variations valid within each individual 3GPP band.
Glitch-FreeTM, Zero-DistortionTM, RF VGA
5
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 SPECIFICATION - MIDBAND PERFORMANCE
See F0480 Typical Application Circuit. Specifications apply when operated as an RF DVGA, VCC = +5.00 V,
TC = +25 °C, FRF = 2000 MHz, Band_Select = HB setting, Max gain setting, output power = 0 dBm,
ZRFI = ZRFO = 50 Ω, the evaluation board and connector losses are de-embedded, unless otherwise noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
RF input return loss
RLIN_MB
13
dB
RF output return loss
RLOut_MB
17
dB
GMAX_MB
Gain
Step Error
11.9
-11
GMIN_MB
Maximum attenuation
GTEMP_MB
Variation over Temperature
GVAR_MB
Max gain variation over
frequency5
0.1
GACC_MB
Between adjacent states
± 0.1
Absolute Error
GABSACC_MB
Relative to maximum gain
Phase deviation
GPH_ADJ_MB
Between adjacent states at
maximum gain
NFMB_MG
NFMB_RG
Output Third Order
Intercept Point
Output 1 dB Power
Compression
Output 0.2 dB Power
Compression
- 0.6
± 0.2
dB
+ 0.6
2
dB
Deg
Tcase = +105 °C
5.5
5.9
22 dB attenuation
26.7
28.2
OIP3_MB-1
OIP3_MB-2
Pout = -10 dBm/Tone,
1 MHz tone separation
OIP3_MB-3
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
38
dB
41.5
42.5
39
41.1
dBm
41.5
OP1dB_MB
22.2
dBm
OP0.2dB_MB
18.5
dBm
22.7
dBm
18
dB
Output Saturated Power
PSAT_MB
Reverse Isolation
REVISO_MB
Glitch-FreeTM, Zero-DistortionTM, RF VGA
dB
4.5
Pout = 0 dBm/Tone,
1 MHz tone separation
OIP3_MB-6dB
-9.9
14.2
-8.7
± 0.3
NFMB
Noise Figure
13.1
3 dB compression
6
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 SPECIFICATION - HIGHBAND PERFORMANCE
See F0480 Typical Application Circuit. Specifications apply when operated as an RF DVGA, VCC = +5.00 V,
TC = +25 °C, FRF = 2700 MHz, Band_Select = HB setting, Max gain setting, output power = 0 dBm,
ZRFI = ZRFO = 50 Ω, the evaluation board and connector losses are de-embedded, unless otherwise noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
RF input return loss
RLIN_HB
12
dB
RF output return loss
RLOut_HB
15
dB
GMAX_HB
Gain
Step Error
12.2
-10.7
13.5
-9.5
14.4
-8.4
GMIN_HB
Maximum attenuation
GTEMP_HB
Variation over Temperature
GVAR_HB
Max gain variation over
frequency5
0.1
GACC_HB
Between adjacent states
± 0.1
dB
± 0.3
dB
Absolute Error
GABSACC_HB
Relative to maximum gain
± 0.2
dB
Phase deviation
GPH_ADJ_HB
Between adjacent states at
maximum gain
3
Deg
NFHB
Noise Figure
NFHB_MG
NFHB_RG
Output Third Order
Intercept Point
Output 0.2 dB Power
Compression
5.8
22 dB attenuation
26.8
OIP3_HB-1
39.2
OIP3_HB-2
Pout = -10 dBm/Tone,
1 MHz tone separation
38.5
OIP3_HB-3
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
35.5
36.7
dB
dBm
39
OP1dB_HB
21.8
dBm
OP0.2dB_HB
21.6
dBm
22.2
dBm
18
dB
Output Saturated Power
PSAT_HB
Reverse Isolation
REVISO_HB
Glitch-FreeTM, Zero-DistortionTM, RF VGA
Tcase = +105 °C
Pout = 0 dBm/Tone,
1 MHz tone separation
OIP3_HB-6dB
Output 1 dB Power
Compression
5
3 dB compression
7
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
SERIAL CONTROL MODE
Data is clocked in LSB first via serial mode. Note the timing diagram below.
Note – The IDTF0480 includes a CLK inhibit feature designed to minimize sensitivity to CLK bus noise
when the device is not being programmed. When CSb is high (> VIH), the CLK input is disabled and serial
data (DATA) is not clocked into the shift register. It is recommended that CSb be pulled high (>VIH) when
the device is not being programmed.
SERIAL REGISTER TIMING DIAGRAM: (Note the Timing Spec Intervals in Blue)
SERIAL MODE DEFAULT CONDITION:
When the device is first powered up it will default to the Maximum Attenuation setting as described below:
Figure 1 - SPI timing diagram & default register settings
Glitch-FreeTM, Zero-DistortionTM, RF VGA
8
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
F0480 DVGA ATTENUATION WORD TRUTH TABLE (LSB = first in)
The SPI interface should be built up by an 8-bit word (defined as MOSI) where 5 bits are used for attenuation setting
per the example shown below. BOLD indicates bits used for programming the attenuator; data bits 2 through 6.
D7
(MSB)
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
D6
D5
D4
D3
D2
D1
Low
Low
Low
Low
Low
High
High
High
High
High
High
High
High
High
High
High
Low
Low
Low
Low
High
Low
Low
Low
High
High
High
High
High
High
High
High
Low
Low
Low
High
Low
Low
High
High
Low
Low
Low
Low
High
High
High
High
Low
Low
High
Low
Low
Low
High
High
Low
Low
High
High
Low
Low
High
High
Low
High
Low
Low
Low
Low
Low
High
Low
High
Low
High
Low
High
Low
High
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
D0
(LSB)
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
ATTENUATION
SETTING
insertion loss
1 dB
2 dB
4 dB
8 dB
16 dB
22 dB
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
23 dB (max)
STANDBY TRUTH TABLE*
PARAMETER
LEVEL
FUNCTION
STBY
0 Volts or
Open Circuit
Power On
+5 Volts
Power Off
* Startup/Power on requirements:
SPI shall be left on during Standby mode. When the circuit is initially powered up (+5V applied on pin 12/13), the
default VGA setting should be minimum gain (max attenuation setting). If the attenuator is programmed in Standby
mode, the programmed setting will be active when the device is taken out of Standby mode.
SPI LOGIC LEVEL CONTROL - PIN 11
PARAMETER
LEVEL
FUNCTION
LogicCTL
3.3 Volts or
open Circuit
3.3V logic
0 Volts
1.8V logic
Glitch-FreeTM, Zero-DistortionTM, RF VGA
9
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
SUGGESTED C5, R7, AND R8 VALUES FOR OPTIMUM PERFORMANCE (UNLESS OTHERWISE NOTED IN
TOCS)
Band
Freq Range
(MHz)
Band Select
Pin 15
R7
(kΩ
Ω)
R8
(kΩ
Ω)
C5
(pF)
ICC
(mA
)
Low-Band
700 - 1100
LB (Open)
2.2
9.1
9
100
Mid-Band
1100 - 2200
HB (GND)
2.4
27
9
117
High-Band
2200 - 2700
HB (GND)
2.67
75
6
109
Broad-Band
(p. 16 TOCs)
400 - 2700
HB (GND)
2.2
20
9
124
TYPICAL OPERATING CONDITIONS
Unless otherwise noted for the TOC graphs, the following conditions apply
•
•
•
•
•
•
Vcc = 5.0 V
Pout = 0 dBm / Tone
1 MHz Tone Spacing
TCASE = 35 °C, TAMB = 25 °C
ATTN setting = 0 dB (Max Gain)
EVkit losses (traces and connectors) fully de-embedded
Glitch-FreeTM, Zero-DistortionTM, RF VGA
10
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TYPICAL OPERATING CONDITIONS [IP3, COMPRESSION] (-1-)
Output IP3 [0 dBm/Tone, 1M Tone Spacing, 0dB ATTN]
Output IP3 [0 dBm/Tone, 10M Tone Spacing, 0 dB
ATTN]
52
Low-Band
52
High-Band
Mid-Band Configuration
Configuration
Configuration
48
44
Output IP3 (dBm)
Output IP3 (dBm)
48
40
36
-40C / 5.25V / 0dBm / 1MHz / 0dB
-40C / 5.00V / 0dBm / 1MHz / 0dB
32
-40C / 4.75V / 0dBm / 1MHz / 0dB
35C / 5.25V / 0dBm / 1MHz / 0dB
28
35C / 5.00V / 0dBm / 1MHz / 0dB
35C / 4.75V / 0dBm / 1MHz / 0dB
24
Low-Band
Configuration
40
36
-40C / 5.25V / 0dBm / 10MHz / 0dB
-40C / 5.00V / 0dBm / 10MHz / 0dB
32
-40C / 4.75V / 0dBm / 10MHz / 0dB
35C / 5.25V / 0dBm / 10MHz / 0dB
28
35C / 5.00V / 0dBm / 10MHz / 0dB
35C / 4.75V / 0dBm / 10MHz / 0dB
105C / 5.00V / 0dBm / 1MHz / 0dB
24
105C / 5.25V / 0dBm / 10MHz / 0dB
105C / 4.75V / 0dBm / 1MHz / 0dB
105C / 5.00V / 0dBm / 10MHz / 0dB
20
16
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
Configuration
44
105C / 5.25V / 0dBm / 1MHz / 0dB
20
High-Band
Mid-Band Configuration
2.3
2.5
2.7
105C / 4.75V / 0dBm / 10MHz / 0dB
16
RF Frequency (GHz)
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
RF Frequency (GHz)
Output IP3 [0 dBm/Tone, 1M Tone Spacing, 11dB ATTN]
Output IP3 [-7 dBm/Tone, 1M Tone Spacing, 0dB ATTN]
52
Low-Band
52
High-Band
Mid-Band Configuration
Configuration
Configuration
48
44
Output IP3 (dBm)
Output IP3 (dBm)
48
40
36
-40C / 5.25V / 0dBm / 1MHz / 11dB
-40C / 5.00V / 0dBm / 1MHz / 11dB
32
-40C / 4.75V / 0dBm / 1MHz / 11dB
35C / 5.25V / 0dBm / 1MHz / 11dB
28
35C / 5.00V / 0dBm / 1MHz / 11dB
35C / 4.75V / 0dBm / 1MHz / 11dB
24
Low-Band
Configuration
40
36
-40C / 5.25V / -7dBm / 1MHz / 0dB
-40C / 5.00V / -7dBm / 1MHz / 0dB
32
-40C / 4.75V / -7dBm / 1MHz / 0dB
35C / 5.25V / -7dBm / 1MHz / 0dB
28
35C / 5.00V / -7dBm / 1MHz / 0dB
35C / 4.75V / -7dBm / 1MHz / 0dB
105C / 5.00V / 0dBm / 1MHz / 11dB
24
105C / 5.25V / -7dBm / 1MHz / 0dB
105C / 4.75V / 0dBm / 1MHz / 11dB
105C / 5.00V / -7dBm / 1MHz / 0dB
20
16
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
Configuration
44
105C / 5.25V / 0dBm / 1MHz / 11dB
20
High-Band
Mid-Band Configuration
2.3
2.5
2.7
105C / 4.75V / -7dBm / 1MHz / 0dB
16
RF Frequency (GHz)
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
RF Frequency (GHz)
Gain Compression [900 MHz]
Phase Compression [900 MHz]
0.8
0.4
-40degC / 5.25V
-40degC / 5.00V
-40degC / 4.75V
35degC / 5.25V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
12
8
-40degC / 5.00V
-40degC / 4.75V
35degC / 5.25V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
4
Phase Delta (degrees)
0.0
Gain Delta (dB)
-40degC / 5.25V
-0.4
-0.8
-1.2
-1.6
-2.0
-2.4
0
-4
-8
-12
-16
-20
-24
-28
-32
-36
-2.8
14
15
16
17
18
19
20
21
22
23
24
-40
14
Output Power (dBm)
15
16
17
18
19
20
21
22
23
24
Output Power (dBm)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
11
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [COMPRESSION, NF] (-2-)
Gain Compression [2000 MHz]
1.2
0.8
Phase Compression [2000 MHz]
-40degC / 5.25V
-40degC / 5.00V
-40degC / 4.75V
35degC / 5.25V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
12
8
Phase Delta (degrees)
Gain Delta (dB)
0.0
-0.4
-0.8
-1.2
-1.6
-2.0
-2.4
-2.8
-40degC / 4.75V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
0
-4
-8
-12
-16
-20
-24
-28
-3.2
-32
-3.6
-36
-40
-4.0
14
15
16
17
18
19
20
21
22
23
14
24
15
16
Gain Compression [2700 MHz]
1.2
0.8
17
18
19
20
21
22
23
24
Output Power (dBm)
Output Power (dBm)
Phase Compression [2700 MHz]
-40degC / 5.25V
-40degC / 5.00V
-40degC / 4.75V
35degC / 5.25V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
12
8
0.4
-40degC / 5.25V
-40degC / 5.00V
-40degC / 4.75V
35degC / 5.25V
35degC / 5.00V
35degC / 4.75V
105degC / 5.25V
105degC / 5.00V
105degC / 4.75V
4
Phase Delta (degrees)
0.0
Gain Delta (dB)
-40degC / 5.00V
35degC / 5.25V
4
0.4
-0.4
-0.8
-1.2
-1.6
-2.0
-2.4
-2.8
0
-4
-8
-12
-16
-20
-24
-28
-3.2
-32
-3.6
-36
-4.0
-40
14
15
16
17
18
19
20
21
22
23
24
14
15
Output Power (dBm)
16
17
18
19
20
21
22
23
24
Output Power (dBm)
Noise Figure vs. Temperature
Worst Case NF vs. Frequency [105C, 5.25V]
7.0
7.0
6.5
6.0
700MHz / LB
900MHz / LB
1700MHz / MB
2000MHz / MB
2300MHz / HB
2700MHz / HB
LB SN47
6.5
MB SN28
HB SN56
6.0
5.5
Noise Figure (dB)
Noise Figure (dB)
-40degC / 5.25V
5.0
4.5
4.0
3.5
3.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.5
2.0
-40
-20
0
20
40
60
80
2.0
100
700
Case Temperature (degC)
900
1100 1300 1500 1700 1900 2100 2300 2500 2700
Frequency (MHz)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
12
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [GAIN, S-PARAMS WITHOUT C5, ATTN ERROR] (-3-)
Gain vs. Temperature and Voltage
S21 (device only) [TAMB = 25C, VCC = 5.00 Volts]
25
16
Low-Band
15
High-Band
Mid-Band Configuration
Configuration
20
Configuration
14
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
11dB
12dB
13dB
14dB
15dB
16dB
17dB
18dB
19dB
20dB
21dB
22dB
23dB
15
S21 (dB)
Gain (dB)
13
12
-40C / 5.25V / 0dBm / 1MHz / 0dB
11
-40C / 5.00V / 0dBm / 1MHz / 0dB
10
5
-40C / 4.75V / 0dBm / 1MHz / 0dB
10
35C / 5.25V / 0dBm / 1MHz / 0dB
0
35C / 5.00V / 0dBm / 1MHz / 0dB
9
35C / 4.75V / 0dBm / 1MHz / 0dB
8
105C / 5.25V / 0dBm / 1MHz / 0dB
7
105C / 4.75V / 0dBm / 1MHz / 0dB
-5
105C / 5.00V / 0dBm / 1MHz / 0dB
-10
6
-15
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
0.6
2.7
0.8
1.0
1.2
1.4
RF Frequency (GHz)
0
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
11dB
12dB
13dB
14dB
15dB
16dB
17dB
18dB
19dB
20dB
21dB
22dB
23dB
-5
-10
-10
-15
-15
S22 (dB)
S11 (dB)
-5
-20
2.0
2.2
2.4
2.6
2.8
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
11dB
12dB
13dB
14dB
15dB
16dB
17dB
18dB
19dB
20dB
21dB
22dB
23dB
-20
-25
-25
-30
-30
-35
-35
-40
-40
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
0.6
2.8
0.8
1.0
1.2
1.4
2.0
2.2
2.4
2.6
2.8
1.0
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
11dB
12dB
13dB
14dB
15dB
16dB
17dB
18dB
19dB
20dB
21dB
22dB
23dB
0.8
Absolute Attenuation Error (dB)
-10
1.8
INL (device only) [TAMB = 25C, VCC = 5.00V]
S12 (device only) [TAMB = 25C, VCC = 5.00 Volts]
-5
1.6
RF Frequency (GHz)
RF Frequency (GHz)
-15
S12 (dB)
1.8
S22 (device only) [TAMB = 25C, VCC = 5.00 Volts]
S11 (device only) [TAMB = 25C, VCC = 5.00 Volts]
0
1.6
RF Frequency (GHz)
-20
-25
-30
-35
-40
0.7 GHz
0.9 GHz
1.7 GHz
1.9 GHz
2.3 GHz
2.7 GHz
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-45
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
0
2.8
Glitch-FreeTM, Zero-DistortionTM, RF VGA
2
4
6
8
10
12
14
16
18
20
22
24
Attenuation Setting (dB)
RF Frequency (GHz)
13
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [PHASE ERROR, S-PARAMS WITH C5, STABILITY] (-4-)
S21 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
Phase Delta (device only) [TAMB = 25C, VCC = 5.00V]
180
25
160
20
0dB ATTN
11dB ATTN
140
0.7 GHz
0.9 GHz
1.7 GHz
1.9 GHz
2.3 GHz
2.7 GHz
S21 (dB)
S21 Phase (degrees)
23dB ATTN
15
120
10
5
100
0
80
-5
60
-10
-15
40
0
2
4
6
8
10
12
14
16
18
20
22
0.6
24
0.8
1.0
1.2
1.4
Attenuation Setting (dB)
S11 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
0
2.0
2.2
2.4
0
2.6
2.8
0dB ATTN
11dB ATTN
11dB ATTN
-5
23dB ATTN
23dB ATTN
-10
-10
S11 (dB)
S11 (dB)
1.8
S22 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
0dB ATTN
-5
-15
-20
-15
-20
-25
-25
-30
-30
-35
-35
-40
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
-40
2.8
0.6
0.8
1.0
1.2
1.4
RF Freq (GHz)
1.6
1.8
2.0
2.2
2.4
2.6
2.8
RF Freq (GHz)
S12 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
Stability v. ATTN [see discusson on p.18]
2.4
-5
3 dB
0dB ATTN
2.2
11dB ATTN
-10
2 dB
23dB ATTN
2.0
K (Stability Factor)
-15
S12 (dB)
1.6
RF Freq (GHz)
-20
-25
-30
-35
1 dB
1.8
0 dB
1.6
1.4
1.2
1.0
0.8
25C Ambient / 5.00V / HB Configuration
Board losses (traces and connectors) are included
-40
0.6
-45
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
0.4
2.8
0
RF Freq (GHz)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
1
2
3
4
5
6
7
8
9
Frequency (GHz)
14
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [MORE IP3, EVKIT LOSSES] (-5-)
OIP3 vs. Tone Spacing [2.5 GHz, 5.00V]
OIP3 vs. Temperature [2.5 GHz, 5.00V]
50
14.6
46
48
14.2
44
46
13.8
44
13.4
42
13.0
40
12.6
1 MHz Tone ∆
38
Output IP3 (dBm)
Gain (dB)
Output IP3 (dBm)
-30degC Tcase
30degC Tcase
105degC Tcase
42
40
38
36
12.2
10 MHz Tone ∆
34
Gain
36
11.8
32
34
11.4
-45
-30
-15
0
15
30
45
60
75
90
105
-55
-40
-25
-10
5
20
35
50
65
80
95
30
1
5
10
60
-60
IP3+ (dBm)
IM3- (dBm)
IM3 + (dBm)
54
25
30
0.0
-66
-72
42
-78
36
-84
30
-90
24
-96
18
-102
12
-108
6
-114
0
-0.2
Loss (dB)
48
IM3 Power (dBm)
Output IP3 (dBm)
20
EVKit losses [connector and traces] (Rev 02
RO)
OIP3 vs. Output Power [2.5 GHz, TAMB = 85C]
IP3 - (dBm)
15
Tone Spacing (MHz)
TCASE / TAMB (degrees C)
-0.4
-0.6
Input + Output
Board Loss
-0.8
Input OR Output
Board Loss
-120
-13
-11
-9
-7
-5
-3
-1
1
3
5
-1.0
0.2
Output Power per Tone (dBm)
0.6
1.0
1.4
1.8
2.2
2.6
3.0
3.4
3.8
4.2
Frequency (GHz)
OIP3 v. ATTN [2.5 GHz, TAMB = 85C, Pout = -5 dBm]
60
IP3+ (dBm)
IM3- (dBm)
IM3 + (dBm)
48
-72
45
42
-78
36
-84
30
-90
24
-96
18
-102
12
-108
6
-114
0
2
4
6
8
10
12
14
16
18
40
35
30
25C / 5.00V / 0dB ATTN
25
-40C / 5.00V / 0dB ATTN
20
105C / 5.00V / 0dB ATTN
15
-120
0
Output IP3 (dBm)
50
IM3 Power (dBm)
-66
54
Output IP3 (dBm)
OIP3 vs. Output Power [2.7 GHz, ∆f = 1 MHz]
-60
IP3 - (dBm)
20
10
Attenuation Setting (dB)
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
Output Power per Tone
Glitch-FreeTM, Zero-DistortionTM, RF VGA
15
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [BROADBAND CONFIG] (-6-)
OIP3 vs. TCASE & Tone Offset [10 dB ATTN]
52
52
48
48
44
44
Output IP3 (dBm)
Output IP3 (dBm)
OIP3 vs. TCASE & Tone Offset [0 dB ATTN]
40
36
32
Broad-Band
Configuration
28
R7 = 2.2K
R8 = 20K
C5 = 9pF
24
20
16
40
36
32
Broad-Band
Configuration
28
R7 = 2.2K
R8 = 20K
C5 = 9pF
24
-40C / 1MHz / 0dB attn
-40C / 5MHz / 0dB attn
-40C / 15MHz / 0dB attn
35C / 1MHz / 0dB attn
35C / 5MHz / 0dB attn
35C / 15MHz / 0dB attn
105C / 1MHz / 0dB attn
105C / 5MHz / 0dB attn
105C / 15MHz / 0dB attn
20
16
12
-40C / 1MHz / 10dB attn
-40C / 5MHz / 10dB attn
-40C / 15MHz / 10dB attn
35C / 1MHz / 10dB attn
35C / 5MHz / 10dB attn
35C / 15MHz / 10dB attn
105C / 1MHz / 10dB attn
105C / 5MHz / 10dB attn
105C / 15MHz / 10dB attn
12
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
0.4
0.6
0.8
1.0
52
16
48
14
44
12
40
10
36
Broad-Band
Configuration
28
R7 = 2.2K
R8 = 20K
C5 = 9pF
24
20
16
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
Gain vs. TCASE & ATTN setting
8
Gain (dB)
Output IP3 (dBm)
OIP3 vs. TCASE & Tone Offset [13 dB ATTN]
32
1.2
RF Frequency (GHz)
RF Frequency (GHz)
-40C / 1MHz / 0dB attn
-40C / 1MHz / 10dB attn
-40C / 1MHz / 13dB attn
35C / 1MHz / 0dB attn
35C / 1MHz / 10dB attn
35C / 1MHz / 13dB attn
105C / 1MHz / 0dB attn
105C / 1MHz / 10dB attn
105C / 1MHz / 13dB attn
Broad-Band Configuration
6
R7 = 2.2K / R8 = 20K / C5 = 9pF
4
2
-40C / 1MHz / 13dB attn
-40C / 5MHz / 13dB attn
-40C / 15MHz / 13dB attn
35C / 1MHz / 13dB attn
35C / 5MHz / 13dB attn
35C / 15MHz / 13dB attn
105C / 1MHz / 13dB attn
105C / 5MHz / 13dB attn
105C / 15MHz / 13dB attn
0
-2
12
-4
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
0.4
0.6
0.8
1.0
RF Frequency (GHz)
Wideband OIP2 [TAMB = 25C, Pout = -10 dBm/Tone]
MHz
MHz
dBm
dBm
MHz
MHz
F1
F2
700
1950
1250
2650
-71.1
51.1
-69.3
700
1720
1020
2420
-70.4
50.4
-69.6
700
2650
1950
-71.8
51.8
824
900
900
1720
820
1755
2600
1900
2600
2620
dBm
dBm
1.6
1.8
2.0
2.2
2.4
2.6
MHz
MHz
F1
F2
49.3
700
1950
1250
2650
-50.9
50.9
-49.2
49.2
49.6
700
1720
1020
2420
-50.2
50.2
-49.5
49.5
700
2650
1950
-51.4
51.4
MHz
-51.2
51.2
-50.2
50.2
51.5
824
900
-70.3
50.3
900
1720
820
50.4
845
-69.4
49.4
1755
2600
700
-69.3
49.3
1900
2600
16
MHz
dBm
IMD2 - IMD2 + IMD2 -
-71.5
-70.4
Glitch-FreeTM, Zero-DistortionTM, RF VGA
1.4
2.8
Wideband OIP2 [TAMB = 25C, Pout = 0 dBm/Tone]
IMD2 - IMD2 + IMD2 - OIP2 - IMD2 + OIP2 +
1724
1.2
RF Frequency (GHz)
dBm
dBm
OIP2 - IMD2 + OIP2 +
1724
2620
dBm
-50.0
50.0
845
-49.0
49.0
700
-48.9
48.9
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOCS [HISTOGRAMS] (-7-)
Gain [N = 2107]
OIP3 [Freq = 2.0 GHz, N = 2107]
70%
20%
900M
60%
15%
2700M
Percentage
50%
Percentage
OIP3
2000M
40%
30%
20%
10%
5%
10%
0%
0%
Output IP3 Bin (dBm)
Gain Bin (dB)
ATTN Accuracy [Freq = 2.0 GHz, N = 2107]
Total Current [MidBand Config, N = 2107]
50%
20%
6 dB ATTN
Icc
23 dB ATTN
40%
Percentage
Percentage
15%
10%
5%
30%
20%
10%
0%
0%
Attenuation Accuracy Bin (dB)
Current Draw Bin (mA)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
17
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
STABILITY CONSIDERATIONS
The IDTF0480 EVkit is unconditionally stable as shown on page 14, bottom right graph.
One can ensure that the device itself is unconditionally stable (Rollett Stability factor [K] > 1) regardless of trace and
connector losses present in the actual application by adding a shunt 500 ohm resistor at the output. For the HB
configuration , it is also advised to change R8 to 400K and C5 to 4.7 pF.
This 500 ohm shunt load will reduce the gain by about 0.4 dB but leave the rest of the performance parameters such
as IP3, S22, etc. virtually unchanged.
The 500 ohm shunt load will ensure that the device is unconditionally stable WITHOUT the presence of the input and
output traces and connectors associated with the EVkit. In all cases we do recommend that the output capacitor, C5,
be placed as close to the output of the package as possible.
Shunt 500 ohm output resistor with
100 pF DC block to ground.
Alternately can be hooked directly to
VCC in parallel with RF choke inductor
Change C5 to 4.7 pF
(HB config only)
Change R8 to 400K
(HB config only)
2.0
1.8
1.6
Kfactor
1.4
1.2
1.0
0.8
No Load
0.6
Shunt 500 ohm Load
0.4
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
5
6
Frequency (GHz)
15
50
14
45
13
40
Output IP3 (dBm)
Gain (dB)
Gain Comparison (25C Ambient) and Output IP3 Comparison (2.7 GHz Frequency)
12
11
No Load
10
Shunt 500 ohm Load
9
35
30
25
20
No Load 25C
Shunt Load 25C
No Load -40C
Shunt Load -40C
No Load 105C
Shunt Load 105C
15
8
10
7
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
5
2.7
-5
Frequency (GHz)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
-4
-3
-2
-1
0
1
2
3
4
Output Power / Tone (dBm)
18
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
PACKAGE DRAWING
(5MM X 5MM 32-PIN TQFN), USE EXPOSED PAD (EPAD) OPTION P1
Glitch-FreeTM, Zero-DistortionTM, RF VGA
19
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
LAND PATTERN DIMENSION
Glitch-FreeTM, Zero-DistortionTM, RF VGA
20
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
11
12
13
14
15
16
LogicCTL
VCC
VCC
GND
Band_Select
GND
25
10
NC
26
SPI CSb
NC
27
9
NC
28
30
NC
NC
31
29
NC
32
NC
NC
Glitch-FreeTM, Zero-DistortionTM, RF VGA
SPI CLK
PIN DIAGRAM
21
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
PIN DESCRIPTION
Pin
Name
1, 5, 6, 7, 24,
25, 26, 27, 28,
29, 30, 31, 32
N.C.
No Connection. Not internally connected. OK to connect to VCC. OK to
connect to GND.
2, 4, 14, 16, 18,
21, 23
GND
Ground these pins.
3
RFIN
RF input internally matched to 50 Ω. Must use external DC block as close
to the pin as possible.
8
SPI Data1
Data input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage.
9
SPI CLK1
Clock input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage.
10
SPI CSb1
Chip Select input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage. Active LOW shifts data.
11
LogicCTL
LogicCTL ≥ VIH or Open Circuit sets 3.3V logic for SPI pins 8, 9, and 10.
LogicCTL ≤ VIL sets 1.8V logic for SPI pins 8, 9, and 10. A ~100Kohm
pull-up resistor connects between the input and Vcc/2. For 1.8V logic,
connect 0 Ω resistor to GND.
12
VCC
5 V Power Supply. Tie to VCC and connect 2 bypass capacitors with
values 1000 pf (closest to pin) and 0.1 µF. See Typical Application Circuit
for details.
13
VCC
5 V Power Supply. Tie to VCC and connect 2 bypass capacitors with
values 1000 pf (closest to pin) and 0.1 µF. See Typical Application Circuit
for details.
15
Band_Select
Leave pin open circuited for lowband select and connect 0 Ω resistor to
GND for highband select. A ~1.5Mohm pull-up resistor connects between
the input and VCC. 3.3V and 1.8V CMOS logic compatible.
17
STBY
19
R_Bias1
Connect external resistor to GND to optimize amplifier bias. Used in
conjunction with pin 20.
20
R_Bias2
Connect external resistor to GND to optimize amplifier bias. Used in
conjunction with pin 19.
22
RFOUT
RF output. Must use external DC block as close to the pin as possible.
33
— EP
Function
Standby (Low/Open = device power ON, High = device power OFF with
SPI still powered ON). A ~1Mohm pull-down resistor connects between
the input and GND. 3.3V and 1.8V CMOS logic compatible
Exposed Pad. Internally connected to GND. Solder this exposed pad to a
PCB pad that uses multiple ground vias to provide heat transfer out of
the device into the PCB ground planes. These multiple via grounds are
also required to achieve the noted RF performance.
1. The SPI interface should be built up by an 8-bit word where 5 bits are used for attenuation setting (see
F0480 DVGA Attenuation word truth table above).
Glitch-FreeTM, Zero-DistortionTM, RF VGA
22
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
EVKIT PICTURE
Band_Select jumper
open = low band
placed = mid/high band
Band Configuration Elements
C5, R7, R8
See p.10, p.25 for values for
LB, MB, HB, WB
GND
DATA
CLK
GND
CSB
STBY jumper
open = device ON
placed = device OFF
5V Supply here
or here
Glitch-FreeTM, Zero-DistortionTM, RF VGA
5V
23
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
EVKIT / APPLICATIONS CIRCUIT
Glitch-FreeTM, Zero-DistortionTM, RF VGA
24
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
EVKIT / APPLICATIONS CIRCUIT (CONT)
EVKIT BOM
Item
#
Part Reference
QTY
DESCRIPTION
Mfr. Part #
1
LB Mode - CAP CER 9PF 50V C0G (0402)
GRM1555C1H9R0DZ01D
1
MB Mode - CAP CER 9PF 50V C0G (0402)
GRM1555C1H9R0DZ01D
1
HB Mode - CAP CER 6PF 50V C0G (0402)
GRM1555C1H6R0DZ01D
Mfr.
1
C5
1
BB Mode - CAP CER 9PF 50V C0G (0402)
GRM1555C1H9R0DZ01D
2
C4, C32, C33
3
CAP CER 2PF 50V C0G (0402)
GRM1555C1H2R0BA01D
Murata
3
C3
1
CAP CER 47PF 50V C0G (0402)
GRM1555C1H470JZ01D
Murata
4
C35, C36
2
CAP CER 1000PF 50V C0G (0402)
GRM1555C1H102JA01D
Murata
5
C34, C37
2
CAP CER 0.1UF 16V 10% X7R (0402)
GRM155R71C104KA88D
Murata
6
C31
1
CAP CER 10UF 6.3V X5R 0603
GRM188R60J106ME47D
Murata
7
R6, R9
2
RES 0.0 OHM 1/10W (0402) SMD
ERJ-2GE0R00X
Panasonic
8
R5
1
RES 20 OHM 1/10W 1% (0402) SMD
ERJ-2RKF20R0X
Panasonic
9
R1, R3, R4
3
RES 4700 OHM 1/10W 5% (0402) SMD
ERJ-2GEJ472X
Panasonic
1
LB Mode - RES 2.2 KOHM 1/10W (0402) SMD
ERJ-2RKF2201X
1
MB Mode - RES 2.4 KOHM 1/10W (0402) SMD
ERJ-2RKF2401X
1
HB Mode - RES 2.67 KOHM 1/10W (0402) SMD
ERJ-2RKF2671X
1
BB Mode - RES 2.2 KOHM 1/10W (0402) SMD
ERJ-2RKF2201X
1
LB Mode - RES 9.1 KOHM 1/10W (0402) SMD
ERJ-2RKF9101X
1
MB Mode - RES 27 KOHM 1/10W (0402) SMD
ERJ-2RKF2702X
1
HB Mode - RES 75 KOHM 1/10W (0402) SMD
ERJ-2RKF7502X
10
R7
Murata
Panasonic
11
R8
1
BB Mode - RES 20 KOHM 1/10W (0402) SMD
ERJ-2RKF2002X
12
J1, J6, J7
3
SMA_END_LAUNCH (small)
142-0711-821
Emerson Johnson
13
J3, J4, J5, J8
4
CONN HEADER VERT SGL 2POS GOLD
961102-6404-AR
3M
14
J2
1
CONN HEADER VERT SGL 4POS GOLD
961104-6404-AR
3M
15
U1
1
RF Amp
F0480
IDT
1
Printed Circuit Board
F0480 EVKIT
SBC
16
Glitch-FreeTM, Zero-DistortionTM, RF VGA
25
Panasonic
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
APPLICATIONS INFORMATION
IDTF0480 has been optimized for use in high performance RF applications from 700 MHz to 2700 MHz.
Power Supplies
A common VCC power supply should be used for all pins requiring DC power. All supply pins should be
bypassed with external capacitors to minimize noise and fast transients. Supply noise can degrade noise
figure and fast transients can trigger ESD clamps and cause them to fail. Supply voltage change or transients
should have a slew rate smaller than 1V/20µS. In addition, all control pins should remain at 0V (+/-0.3V)
while the supply voltage ramps or while it returns to zero.
Control Pin Interface
15
16
14
13
12
11
25
10
26
27
28
26
29
31
30
32
Glitch-FreeTM, Zero-DistortionTM, RF VGA
9
If control signal integrity is a concern and clean signals cannot be guaranteed due to overshoot, undershoot,
ringing, etc., the following circuit at the input of each control pin is recommended. This applies to SPI and
control pins 8, 9, 10, 11, 15, and 17 as shown below. Note the recommended resistor and capacitor values do
not necessarily match the EV kit BOM for the case of poor control signal integrity. For multiple devices driven
by a single control line, the component values will need to be adjusted accordingly so as not to overload the
control line
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOP MARKINGS
Glitch-FreeTM, Zero-DistortionTM, RF VGA
27
Rev 3, April 2015