ERJ-2RKF2201X [IDT]
Matched Broadband RF VGA;
| 型号： | ERJ-2RKF2201X |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Matched Broadband RF VGA |
| 文件： | 总27页 (文件大小：2039K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
G
ENERAL
D
ESCRIPTION
F
EATURES
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.
•
•
•
•
•
•
•
•
•
•
•
•
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
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.
I
CC = 100 mA
1.3 mA standby current
SPI interface
50 ꢁ input and output impedance
Broadband, Internally Matched
Gain increases vs. frequency to counteract
system board losses
This device is packaged in a 5x5 32ꢀpin thin QFN with
50 ohm singleꢀended RF input and RF output
impedances for ease of integration into the signalꢀpath
lineup.
•
5x5 32ꢀpin TQFN package
D
EVICE
B
LOCK
D
IAGRAM
C
OMPETITIVE
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 GlitchꢀFreeTM DSA & a Zeroꢀ
DistortionTM 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-DistortionTM
TM
Glitch-FreeTM
A
PPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
•
Multiꢀmode, Multiꢀcarrier 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
O
RDERING NFORMATION
I
Omit IDT
prefix
Tape &
Reel
0.75 mm height
package
IDTF0480NBGI8
Green
RF product Line
Distributed Antenna Systems
Cable Infrastructure
Digital Radio
Glitch-FreeTM, Zero-DistortionTM, RF VGA
1
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
ABSOLUTE
M
AXIMUM
R
ATINGS
Parameter
Symbol
VCC
Min
ꢀ0.3
ꢀ0.3
ꢀ0.3
Max
+5.5
Units
VCC to GND
V
SPI DATA, SPI CSb, SPI CLK, LogicCTL
STBY, Band_Select
VdiD
+3.6
V
VCntl
Vcc + 0.25
+1.5
V
R_Bias1
IR1
mA
mA
V
R_Bias2
IR1
+0.8
RFIN externally applied DC voltage
RFOUT externally applied DC voltage
VRFin
VRFout
+1.4
+3.6
Vcc ꢀ 0.15
Vcc + 0.15
V
RF Input Power (RFIN) applied for 24
hours maximum
Pin
+22
dBm
Continuous Power Dissipation
Junction Temperature
Pdiss
Tj
1.5
150
150
260
W
°C
°C
°C
Storage Temperature Range
Lead Temperature (soldering, 10s)
Tst
ꢀ65
ElectroStatic Discharge – HBM
(JEDEC/ESDA JSꢀ001ꢀ2012)
Class 2
(2000 V)
ElectroStatic Discharge – CDM
(JEDEC 22ꢀC101F)
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.
P
ACKAGE
THERMAL AND
MOISTURE
C
HARACTERISTICS
θJA (Junction – Ambient)
θJC (Junction – Case) The Case is defined as the exposed paddle
Moisture Sensitivity Rating (Per JꢀSTDꢀ020)
40 °C/W
4 °C/W
MSL1
Glitch-FreeTM, Zero-DistortionTM, RF VGA
2
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 RECOMMENDED
Parameter
O
PERATING
C
ONDITIONS
Symbo
l
Conditions
Min
Typ
Max Unit
s
Supply Voltage(s)
VCC
All VCC pins
4.75
ꢀ40
5.25
+105
2700
V
Operating Temperature
Range
TCASE
Case Temperature
°C
RF Freq Range
FRF
ZRFI
ZRFO
Operating Range
Single Ended
400
MHz
ꢁ
RF Source Impedance
RF Load Impedance
50
50
Single Ended
ꢁ
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 ꢀ, unless otherwise noted.
Parameter
Logic Input High
Symbol
Conditions
JEDEC 3.3V logic
Min
Typ
Max Units
VIH
VIL
VIH
VIL
2.01
V
Logic Input Low
Logic Input High
Logic Input Low
JEDEC 3.3V logic
JEDEC 1.8V logic
JEDEC 1.8V logic
STBY, Band_Select
SPI_
0.8
V
V
V
1.1
0.63
+10
+4
-10
-4
IIH, IIL
Logic Current
ꢂA
Logic CTL
-35
+35
ICC_LB
ICC_MB
ICC_HB
Low Band Configuration
Mid Band Configuration
High Band Configuration
Standby Mode
100
117
109
1.3
128
1.7
Supply Current3
mA
ns
ICC_STBY
50% of STBY going low to
Gain within ± 1 dB with no
attenuation.
Startup time
250
Gain adjustment range
Gain step
GADJ
23
1
dB
dB
GSTEP
Step from 15 to 16 dB or 16 to
15 dB
Max Attenuator Glitch
ATTNG
GST
0.5
dB
50% of CSb to ± 0.1 dB of
settled gain
Gain Settling Time
Serial Clock Speed
500
ns
10
MHz
SPI 3 wire Bus. 50% of CSb
falling edge to 50% of CLK
rising edge.
CSb to first serial clock
rising edge
A
B
C
10
10
10
ns
ns
ns
SPI 3 wire Bus. 50% of CLK
rising edge to 50% of Data
falling edge.
Serial Data Hold Time
SPI 3 wire Bus. 50% of CLK
rising edge to 50% of CSB
rising edge.
Final serial clock rising
edge to CSb
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
P
ERFORMANCE
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 ꢀ, the evaluation board and connector losses are deꢀembedded, unless otherwise noted.
Parameter
RF input return loss
RF output return loss
Symbol
RLIN_LB
Conditions
Min
Typ
15
Max Units
dB
RLOut_LB
GMAX_LB
20
dB
11.5
12.6
ꢀ10.2
± 0.3
13.4
GMIN_LB
Maximum attenuation
-11.2
-9.4
Gain
dB
GTEMP_LB
Variation over Temperature
Max gain variation over
frequency5
GVAR_LB
0.1
Step Error
GACC_LB
Between adjacent states
Relative to maximum gain
± 0.1
± 0.2
dB
dB
Absolute Error
GABSACC_LB
Between adjacent states at
maximum gain
Phase deviation
GPH_ADJ_LB
1
Deg
NFLB
3.9
4.8
Noise Figure
NFLB_MG
NFLB_RG
Tcase = +105 °C
dB
22 dB attenuation
25.9
Pout = 0 dBm/Tone,
1 MHz tone separation
OIP3_LBꢀ1
OIP3_LBꢀ2
41.5
40.5
Pout = ꢀ10 dBm/Tone,
1 MHz tone separation
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
Output Third Order
Intercept Point
dBm
OIP3_LBꢀ3
39
41
41
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
OIP3_LBꢀ6dB
Output 1 dB Power
Compression
OP1dB_LB
20.6
22.2
20
dBm
dBm
Output 0.2 dB Power
Compression
OP0.2dB_LB
Output Saturated Power
Reverse Isolation
PSAT_LB
3 dB compression
22.3
18
dBm
dB
REVISO_LB
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
P
ERFORMANCE
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 ꢀ, the evaluation board and connector losses are deꢀembedded, unless otherwise noted.
Parameter
RF input return loss
RF output return loss
Symbol
RLIN_MB
Conditions
Min
Typ
13
Max Units
dB
RLOut_MB
GMAX_MB
GMIN_MB
17
dB
11.9
-11
13.1
ꢀ9.9
± 0.3
14.2
Maximum attenuation
-8.7
Gain
dB
GTEMP_MB
Variation over Temperature
Max gain variation over
frequency5
GVAR_MB
0.1
Step Error
GACC_MB
Between adjacent states
Relative to maximum gain
± 0.1
± 0.2
dB
Absolute Error
GABSACC_MB
- 0.6
+ 0.6
dB
Between adjacent states at
maximum gain
Phase deviation
GPH_ADJ_MB
2
Deg
NFMB
4.5
5.5
Noise Figure
NFMB_MG
NFMB_RG
Tcase = +105 °C
5.9
dB
22 dB attenuation
26.7
28.2
Pout = 0 dBm/Tone,
1 MHz tone separation
OIP3_MBꢀ1
OIP3_MBꢀ2
38
41.5
42.5
Pout = ꢀ10 dBm/Tone,
1 MHz tone separation
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
Output Third Order
Intercept Point
dBm
OIP3_MBꢀ3
39
41.1
41.5
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
OIP3_MBꢀ6dB
Output 1 dB Power
Compression
OP1dB_MB
22.2
18.5
dBm
dBm
Output 0.2 dB Power
Compression
OP0.2dB_MB
Output Saturated Power
Reverse Isolation
PSAT_MB
3 dB compression
22.7
18
dBm
dB
REVISO_MB
Glitch-FreeTM, Zero-DistortionTM, RF VGA
6
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
IDTF0480 SPECIFICATION - HIGHBAND
P
ERFORMANCE
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 ꢀ, the evaluation board and connector losses are deꢀembedded, unless otherwise noted.
Parameter
RF input return loss
RF output return loss
Symbol
RLIN_HB
Conditions
Min
Typ
12
Max Units
dB
RLOut_HB
GMAX_HB
GMIN_HB
15
dB
12.2
13.5
ꢀ9.5
± 0.3
14.4
Maximum attenuation
-10.7
-8.4
Gain
dB
GTEMP_HB
Variation over Temperature
Max gain variation over
frequency5
GVAR_HB
0.1
Step Error
GACC_HB
Between adjacent states
Relative to maximum gain
± 0.1
± 0.2
dB
dB
Absolute Error
GABSACC_HB
Between adjacent states at
maximum gain
Phase deviation
GPH_ADJ_HB
3
Deg
NFHB
5
Noise Figure
NFHB_MG
NFHB_RG
Tcase = +105 °C
5.8
26.8
dB
22 dB attenuation
Pout = 0 dBm/Tone,
1 MHz tone separation
OIP3_HBꢀ1
OIP3_HBꢀ2
39.2
38.5
Pout = ꢀ10 dBm/Tone,
1 MHz tone separation
Pout = 0 dBm/Tone,
1 MHz tone separation, Worst
case in the operating
temperature range
Output Third Order
Intercept Point
dBm
OIP3_HBꢀ3
35.5
36.7
39
Pout = 0 dBm/Tone,
1 MHz tone separation with
6 dB attenuation
OIP3_HBꢀ6dB
Output 1 dB Power
Compression
OP1dB_HB
21.8
21.6
dBm
dBm
Output 0.2 dB Power
Compression
OP0.2dB_HB
Output Saturated Power
Reverse Isolation
PSAT_HB
3 dB compression
22.2
18
dBm
dB
REVISO_HB
Glitch-FreeTM, Zero-DistortionTM, RF VGA
7
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
SERIAL
C
ONTROL
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.
S
ERIAL REGISTER TIMING DIAGRAM: (Note the Timing Spec Intervals in Blue)
S
ERIAL 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 8ꢀbit 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)
D6
D5
D4
D3
D2
D1
D0
(LSB)
ATTENUATION
SETTING
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
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
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
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
Power On
Power Off
0 Volts or
Open Circuit
STBY
+5 Volts
* 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
3.3V logic
1.8V logic
3.3 Volts or
open Circuit
LogicCTL
0 Volts
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
TOC )
S
ICC
(mA
)
Freq Range Band Select
R7
R8
C5
Band
(MHz)
Pin 15
(kꢀ) (kꢀ) (pF)
LowꢀBand
MidꢀBand
700 ꢀ 1100
LB (Open)
HB (GND)
2.2
2.4
9.1
27
9
9
100
117
1100 ꢀ 2200
HighꢀBand
2200 ꢀ 2700
400 ꢀ 2700
HB (GND)
HB (GND)
2.67
2.2
75
20
6
9
109
124
BroadꢀBand
(p. 16 TOCs)
TYPICAL
O
PERATING
C
ONDITIONS
Unless otherwise noted for the TOC graphs, the following conditions apply
•
•
•
•
•
•
Vcc = 5.0 V
Pout = 0 dBm / Tone
1 MHz Tone Spacing
T
CASE = 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
ONDITIONS [IP3, COMPRESSION] (-1-)
400MHz to 2700MHz
TYPICAL
O
PERATING
C
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
48
44
40
36
32
28
24
20
16
Configuration
Configuration
Low-Band
Configuration
High-Band
Configuration
Mid-Band Configuration
48
44
40
36
32
28
24
20
16
ꢀ40C/ 5.25V / 0dBm/ 1MHz / 0dB
ꢀ40C/ 5.00V / 0dBm/ 1MHz / 0dB
ꢀ40C/ 4.75V / 0dBm/ 1MHz / 0dB
35C / 5.25V / 0dBm / 1MHz / 0dB
35C / 5.00V / 0dBm / 1MHz / 0dB
35C / 4.75V / 0dBm / 1MHz / 0dB
105C/ 5.25V / 0dBm/ 1MHz / 0dB
105C/ 5.00V / 0dBm/ 1MHz / 0dB
105C/ 4.75V / 0dBm/ 1MHz / 0dB
ꢀ40C / 5.25V / 0dBm/ 10MHz / 0dB
ꢀ40C / 5.00V / 0dBm/ 10MHz / 0dB
ꢀ40C / 4.75V / 0dBm/ 10MHz / 0dB
35C/ 5.25V / 0dBm/ 10MHz / 0dB
35C/ 5.00V / 0dBm/ 10MHz / 0dB
35C/ 4.75V / 0dBm/ 10MHz / 0dB
105C / 5.25V / 0dBm/ 10MHz / 0dB
105C / 5.00V / 0dBm/ 10MHz / 0dB
105C / 4.75V / 0dBm/ 10MHz / 0dB
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)
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
52
Low-Band
High-Band
Mid-Band Configuration
48
44
40
36
32
28
24
20
16
Configuration
Configuration
Low-Band
Configuration
High-Band
Configuration
Mid-Band Configuration
48
44
40
36
32
28
24
20
16
ꢀ40C / 5.25V / 0dBm/ 1MHz / 11dB
ꢀ40C / 5.00V / 0dBm/ 1MHz / 11dB
ꢀ40C / 4.75V / 0dBm/ 1MHz / 11dB
35C/ 5.25V / 0dBm/ 1MHz / 11dB
35C/ 5.00V / 0dBm/ 1MHz / 11dB
35C/ 4.75V / 0dBm/ 1MHz / 11dB
105C / 5.25V / 0dBm/ 1MHz / 11dB
105C / 5.00V / 0dBm/ 1MHz / 11dB
105C / 4.75V / 0dBm/ 1MHz / 11dB
ꢀ40C/ 5.25V / ꢀ7dBm/ 1MHz / 0dB
ꢀ40C/ 5.00V / ꢀ7dBm/ 1MHz / 0dB
ꢀ40C/ 4.75V / ꢀ7dBm/ 1MHz / 0dB
35C/ 5.25V / ꢀ7dBm/ 1MHz / 0dB
35C/ 5.00V / ꢀ7dBm/ 1MHz / 0dB
35C/ 4.75V / ꢀ7dBm/ 1MHz / 0dB
105C/ 5.25V / ꢀ7dBm/ 1MHz / 0dB
105C/ 5.00V / ꢀ7dBm/ 1MHz / 0dB
105C/ 4.75V / ꢀ7dBm/ 1MHz / 0dB
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)
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
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
ꢀ40degC
35degC
105degC
/ 4.75V
/
/
5.00V
5.00V
/
4.75V
/ 4.75V
12
105degC
/
105degC
/
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
ꢀ40degC
35degC
105degC
/ 4.75V
0.4
0.0
/
/
5.00V
5.00V
/
4.75V
4.75V
8
4
105degC
/
105degC
/
/
0
ꢀ0.4
ꢀ0.8
ꢀ1.2
ꢀ1.6
ꢀ2.0
ꢀ2.4
ꢀ2.8
ꢀ4
ꢀ8
ꢀ12
ꢀ16
ꢀ20
ꢀ24
ꢀ28
ꢀ32
ꢀ36
ꢀ40
14
15
16
17
18
19
20
21
22
23
24
14
15
16
17
18
19
20
21
22
23
24
Output Power (dBm)
Output Power (dBm)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
11
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
TOC [COMPRESSION, NF] (-2-)
S
Gain Compression [2000 MHz]
Phase Compression [2000 MHz]
1.2
12
8
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
5.00V
5.00V
ꢀ40degC
35degC /
/
4.75V
4.75V
4.75V
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
5.00V
5.00V
ꢀ40degC
35degC /
/
4.75V
4.75V
4.75V
/
/
/
/
0.8
0.4
105degC
/
105degC
/
105degC /
105degC
/
105degC
/
105degC /
4
0.0
0
ꢀ0.4
ꢀ0.8
ꢀ1.2
ꢀ1.6
ꢀ2.0
ꢀ2.4
ꢀ2.8
ꢀ3.2
ꢀ3.6
ꢀ4.0
ꢀ4
ꢀ8
ꢀ12
ꢀ16
ꢀ20
ꢀ24
ꢀ28
ꢀ32
ꢀ36
ꢀ40
14
15
16
17
18
19
20
21
22
23
24
14
15
16
17
18
19
20
21
22
23
24
Output Power (dBm)
Output Power (dBm)
Gain Compression [2700 MHz]
Phase Compression [2700 MHz]
1.2
12
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
5.00V
5.00V
ꢀ40degC
35degC
105degC
/ 4.75V
ꢀ40degC
35degC
/
5.25V
5.25V
5.25V
ꢀ40degC
35degC
/
5.00V
5.00V
5.00V
ꢀ40degC
35degC
105degC
/ 4.75V
/
/
/
4.75V
/ 4.75V
/
/
/
4.75V
4.75V
0.8
0.4
8
4
105degC
/
105degC
/
105degC
/
105degC
/
/
0.0
0
ꢀ0.4
ꢀ0.8
ꢀ1.2
ꢀ1.6
ꢀ2.0
ꢀ2.4
ꢀ2.8
ꢀ3.2
ꢀ3.6
ꢀ4.0
ꢀ4
ꢀ8
ꢀ12
ꢀ16
ꢀ20
ꢀ24
ꢀ28
ꢀ32
ꢀ36
ꢀ40
14
15
16
17
18
19
20
21
22
23
24
14
15
16
17
18
19
20
21
22
23
24
Output Power (dBm)
Output Power (dBm)
Noise Figure vs. Temperature
Worst Case NF vs. Frequency [105C, 5.25V]
7.0
7.0
LB SN47
700MHz / LB
1700MHz/ MB
2300MHz/ HB
900MHz / LB
2000MHz/ MB
2700MHz/ HB
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
6.5
MB SN28
HB SN56
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
ꢀ40
ꢀ20
0
20
40
60
80
100
700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700
Frequency (MHz)
Case Temperature (degC)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
12
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
TOC [GAIN, S-PARAMS WITHOUT C5, ATTN ERROR] (-3-)
400MHz to 2700MHz
S
Gain vs. Temperature and Voltage
S21 (device only) [TAMB = 25C, VCC = 5.00 Volts]
25
16
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
16dB
22dB
11dB
17dB
23dB
Low-Band
Configuration
High-Band
Configuration
15
20
15
10
5
12dB
18dB
13dB
19dB
14dB
20dB
15dB
21dB
Mid-Band Configuration
14
13
12
11
10
9
ꢀ40C/ 5.25V / 0dBm/ 1MHz / 0dB
ꢀ40C/ 5.00V / 0dBm/ 1MHz / 0dB
ꢀ40C/ 4.75V / 0dBm/ 1MHz / 0dB
35C / 5.25V / 0dBm / 1MHz / 0dB
35C / 5.00V / 0dBm / 1MHz / 0dB
35C / 4.75V / 0dBm / 1MHz / 0dB
105C/ 5.25V / 0dBm/ 1MHz / 0dB
105C/ 5.00V / 0dBm/ 1MHz / 0dB
105C/ 4.75V / 0dBm/ 1MHz / 0dB
0
ꢀ5
8
ꢀ10
ꢀ15
7
6
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
RF Frequency (GHz)
RF Frequency (GHz)
S22 (device only) [TAMB = 25C, VCC = 5.00 Volts]
S11 (device only) [TAMB = 25C, VCC = 5.00 Volts]
0
0
0dB
1dB
2dB
3dB
4dB
5dB
0dB
1dB
2dB
3dB
4dB
5dB
6dB
7dB
8dB
9dB
10dB
16dB
22dB
11dB
17dB
23dB
6dB
7dB
8dB
9dB
10dB
16dB
22dB
11dB
17dB
23dB
ꢀ5
ꢀ10
ꢀ15
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
ꢀ5
ꢀ10
ꢀ15
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
12dB
18dB
13dB
19dB
14dB
20dB
15dB
21dB
12dB
18dB
13dB
19dB
14dB
20dB
15dB
21dB
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
RF Frequency (GHz)
RF Frequency (GHz)
INL (device only) [TAMB = 25C, VCC = 5.00V]
S12 (device only) [TAMB = 25C, VCC = 5.00 Volts]
1.0
ꢀ5
0dB
1dB
2dB
3dB
4dB
5dB
0.7 GHz
1.9 GHz
0.9 GHz
2.3 GHz
1.7 GHz
2.7 GHz
6dB
7dB
8dB
9dB
10dB
16dB
22dB
11dB
17dB
23dB
0.8
0.6
ꢀ10
ꢀ15
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
ꢀ45
12dB
18dB
13dB
19dB
14dB
20dB
15dB
21dB
0.4
0.2
0.0
ꢀ0.2
ꢀ0.4
ꢀ0.6
ꢀ0.8
ꢀ1.0
0
2
4
6
8
10
12
14
16
18
20
22
24
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
Attenuation Setting (dB)
RF Frequency (GHz)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
13
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
TOC [PHASE RROR, S-PARAMS WITH C5, STABILITY] (-4-)
400MHz to 2700MHz
S
E
Phase Delta (device only) [TAMB = 25C, VCC = 5.00V]
S21 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
180
25
0dB ATTN
11dB ATTN
23dB ATTN
20
15
160
140
0.7 GHz
1.9 GHz
0.9 GHz
2.3 GHz
1.7 GHz
2.7 GHz
10
5
120
100
80
0
ꢀ5
60
ꢀ10
ꢀ15
40
0
2
4
6
8
10
12
14
16
18
20
22
24
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
2.8
9
Attenuation Setting (dB)
RF Freq (GHz)
S11 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
S22 (device+C5 cap) [TAMB = 25C, VCC = 5.00 Volts]
0
0
0dB ATTN
0dB ATTN
11dB ATTN
23dB ATTN
11dB ATTN
23dB ATTN
ꢀ5
ꢀ10
ꢀ5
ꢀ10
ꢀ15
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
ꢀ15
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
RF Freq (GHz)
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
2.0
1.8
1.6
1.4
1.2
1.0
11dB ATTN
23dB ATTN
ꢀ10
ꢀ15
2 dB
1 dB
0 dB
ꢀ20
ꢀ25
ꢀ30
ꢀ35
ꢀ40
ꢀ45
0.8
0.6
0.4
25C Ambient / 5.00V / HB Configuration
Board losses (traces and connectors) are included
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
1
2
3
4
5
6
7
8
RF Freq (GHz)
Frequency (GHz)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
14
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
TOC MORE IP3, EVKIT OSSES] (-5-)
400MHz to 2700MHz
S
[
L
OIP3 vs. Temperature [2.5 GHz, 5.00V]
OIP3 vs. Tone Spacing [2.5 GHz, 5.00V]
14.6
14.2
13.8
13.4
13.0
12.6
12.2
11.8
11.4
46
44
42
40
38
36
34
32
30
50
48
46
44
42
40
ꢀ30degC Tcase
30degC Tcase
105degC Tcase
1 MHz Tone ∆
38
36
34
10 MHz Tone ∆
Gain
ꢀ45
ꢀ55
ꢀ30
ꢀ40
ꢀ15
ꢀ25
0
15
5
30
20
45
35
60
50
75
65
90
80
105
95
ꢀ10
1
5
10
15
20
25
30
4.2
9
Tone Spacing (MHz)
TCASE / TAMB (degrees C)
EVKit losses [connector and traces] (Rev 02
RO)
OIP3 vs. Output Power [2.5 GHz, TAMB = 85C]
ꢀ60
60
IP3 ꢀ (dBm)
IM3ꢀ (dBm)
IP3+ (dBm)
IM3 + (dBm)
0.0
ꢀ0.2
ꢀ0.4
ꢀ66
54
48
42
36
30
24
18
12
6
ꢀ72
ꢀ78
ꢀ84
ꢀ90
ꢀ96
Input+ Output
Board Loss
ꢀ0.6
ꢀ0.8
ꢀ1.0
ꢀ102
ꢀ108
ꢀ114
ꢀ120
InputOR Output
Board Loss
0
ꢀ13
ꢀ11
ꢀ9
ꢀ7
ꢀ5
ꢀ3
ꢀ1
1
3
5
0.2
0.6
1.0
1.4
1.8
2.2
2.6
3.0
3.4
3.8
Output Power per Tone (dBm)
Frequency (GHz)
OIP3 v. ATTN [2.5 GHz, TAMB = 85C, Pout = -5 dBm]
OIP3 vs. Output Power [2.7 GHz, ꢁf = 1 MHz]
ꢀ60
60
IP3 ꢀ (dBm)
IM3ꢀ (dBm)
IP3+ (dBm)
IM3 + (dBm)
50
45
40
35
30
ꢀ66
54
48
42
36
30
24
18
12
6
ꢀ72
ꢀ78
ꢀ84
ꢀ90
ꢀ96
25C / 5.00V / 0dB ATTN
25
ꢀ102
ꢀ108
ꢀ114
ꢀ120
ꢀ40C / 5.00V / 0dB ATTN
20
105C / 5.00V / 0dB ATTN
15
10
0
0
2
4
6
8
10
12
14
16
18
20
Attenuation Setting (dB)
ꢀ5 ꢀ4 ꢀ3 ꢀ2 ꢀ1
0
1
2
3
4
5
6
7
8
Output Power per Tone
Glitch-FreeTM, Zero-DistortionTM, RF VGA
15
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
TOC ONFIG] (-6-)
400MHz to 2700MHz
S
[BROADBAND C
OIP3 vs. TCASE & Tone Offset [0 dB ATTN]
OIP3 vs. TCASE & Tone Offset [10 dB ATTN]
52
48
44
40
36
52
48
44
40
36
32
28
24
20
16
12
Broad-Band
32
28
24
20
16
12
Broad-Band
Configuration
Configuration
R7 = 2.2K
R7 = 2.2K
R8 = 20K
C5 = 9pF
R8 = 20K
C5 = 9pF
ꢀ40C / 1MHz / 0dB attn
35C / 1MHz / 0dB attn
105C / 1MHz / 0dB attn
ꢀ40C / 5MHz / 0dB attn
35C / 5MHz / 0dB attn
105C / 5MHz / 0dB attn
ꢀ40C / 15MHz / 0dB attn
35C / 15MHz / 0dB attn
105C / 15MHz / 0dB attn
ꢀ40C / 1MHz / 10dB attn
35C / 1MHz / 10dB attn
105C / 1MHz / 10dB attn
ꢀ40C / 5MHz / 10dB attn
35C / 5MHz / 10dB attn
105C / 5MHz / 10dB attn
ꢀ40C / 15MHz / 10dB attn
35C / 15MHz / 10dB attn
105C / 15MHz / 10dB attn
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
RF Frequency (GHz)
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
RF Frequency (GHz)
OIP3 vs. TCASE & Tone Offset [13 dB ATTN]
Gain vs. TCASE & ATTN setting
52
48
44
40
36
16
14
12
ꢀ40C / 1MHz / 0dB attn
35C / 1MHz / 0dB attn
105C / 1MHz / 0dB attn
ꢀ40C / 1MHz / 10dB attn
ꢀ40C / 1MHz / 13dB attn
35C / 1MHz / 13dB attn
105C / 1MHz / 13dB attn
10
8
35C / 1MHz / 10dB attn
105C / 1MHz / 10dB attn
Broad-Band Configuration
32
28
24
20
16
12
Broad-Band
6
R7 = 2.2K / R8 = 20K / C5 = 9pF
Configuration
R7 = 2.2K
4
R8 = 20K
C5 = 9pF
2
ꢀ40C / 1MHz / 13dB attn
35C / 1MHz / 13dB attn
105C / 1MHz / 13dB attn
ꢀ40C / 5MHz / 13dB attn
35C / 5MHz / 13dB attn
105C / 5MHz / 13dB attn
ꢀ40C / 15MHz / 13dB attn
35C / 15MHz / 13dB attn
105C / 15MHz / 13dB attn
0
ꢀ2
ꢀ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
RF Frequency (GHz)
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
RF Frequency (GHz)
Wideband OIP2 [TAMB = 25C, Pout = -10 dBm/Tone]
Wideband OIP2 [TAMB = 25C, Pout = 0 dBm/Tone]
MHz
F1
MHz
F2
MHz
MHz
dBm
dBm
dBm
dBm
MHz
F1
MHz
F2
MHz
MHz
dBm
dBm
dBm
dBm
IMD2- IMD2+ IMD2- OIP2- IMD2+ OIP2+
IMD2- IMD2+ IMD2- OIP2- IMD2+ OIP2+
700
700
700
824
900
1950
1720
2650
900
1250
1020
1950
2650
2420
ꢀ71.1
ꢀ70.4
ꢀ71.8
51.1
50.4
51.8
ꢀ69.3
ꢀ69.6
49.3
49.6
700
700
700
824
900
1950
1720
2650
900
1250
1020
1950
2650
2420
ꢀ50.9
ꢀ50.2
ꢀ51.4
50.9
50.2
51.4
ꢀ49.2
ꢀ49.5
49.2
49.5
1724
2620
ꢀ71.5
ꢀ70.3
51.5
50.3
1724
2620
ꢀ51.2
ꢀ50.2
51.2
50.2
1720
820
845
700
ꢀ70.4
ꢀ69.4
ꢀ69.3
50.4
49.4
49.3
1720
820
845
700
ꢀ50.0
ꢀ49.0
ꢀ48.9
50.0
49.0
48.9
1755 2600
1900 2600
1755 2600
1900 2600
Glitch-FreeTM, Zero-DistortionTM, RF VGA
16
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
TOC [HISTOGRAMS] (-7-)
400MHz to 2700MHz
S
Gain [N = 2107]
OIP3 [Freq = 2.0 GHz, N = 2107]
70%
20%
15%
10%
5%
900M
OIP3
60%
50%
40%
30%
20%
10%
0%
2000M
2700M
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%
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
C
ONSIDERATIONS
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
Change C5 to 4.7 pF
100 pF DC block to ground.
Alternately can be hooked directly to
VCC in parallel with RF choke inductor
(HB config only)
Change R8 to 400K
(HB config only)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
No Load
Shunt 500 ohm Load
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Frequency (GHz)
Gain Comparison (25C Ambient) and Output IP3 Comparison (2.7 GHz Frequency)
15
50
14
13
12
11
10
9
45
40
35
30
25
20
15
10
5
No Load
No Load 25C
No Load ꢀ40C
No Load 105C
Shunt Load 25C
Shunt Load ꢀ40C
Shunt Load 105C
Shunt 500 ohm Load
8
7
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
ꢀ5
ꢀ4
ꢀ3
ꢀ2
ꢀ1
0
1
2
3
4
5
6
Frequency (GHz)
Output Power / Tone (dBm)
Glitch-FreeTM, Zero-DistortionTM, RF VGA
18
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
P
ACKAGE
D
RAWING
(5MM X MM 32ꢀPIN TQFN), USE
5
E
XPOSED 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
P
ATTERN
D
IMENSION
Glitch-FreeTM, Zero-DistortionTM, RF VGA
20
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
P
IN
D
IAGRAM
Glitch-FreeTM, Zero-DistortionTM, RF VGA
21
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
P
IN
D
ESCRIPTION
Pin
Name
Function
1, 5, 6, 7, 24,
25, 26, 27, 28,
29, 30, 31, 32
No Connection. Not internally connected. OK to connect to VCC. OK to
connect to GND.
N.C.
2, 4, 14, 16, 18,
21, 23
GND
Ground these pins.
RF input internally matched to 50 ꢁ. Must use external DC block as close
to the pin as possible.
3
8
RFIN
Data input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage.
SPI Data1
SPI CLK1
SPI CSb1
Clock input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage.
9
Chip Select input: 3.3V or 1.8V CMOS compatible. Set LogicCTL pin 11 for
desired logic voltage. Active LOW shifts data.
10
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
pullꢀup resistor connects between the input and Vcc/2. For 1.8V logic,
connect 0 ꢀ resistor to GND.
11
LogicCTL
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.
12
13
15
VCC
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.
Leave pin open circuited for lowband select and connect 0 ꢀ resistor to
GND for highband select. A ~1.5Mohm pullꢀup resistor connects between
the input and VCC. 3.3V and 1.8V CMOS logic compatible.
Band_Select
Standby (Low/Open = device power ON, High = device power OFF with
SPI still powered ON). A ~1Mohm pullꢀdown resistor connects between
the input and GND. 3.3V and 1.8V CMOS logic compatible
17
19
STBY
Connect external resistor to GND to optimize amplifier bias. Used in
conjunction with pin 20.
R_Bias1
Connect external resistor to GND to optimize amplifier bias. Used in
conjunction with pin 19.
20
22
R_Bias2
RFOUT
RF output. Must use external DC block as close to the pin as possible.
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.
— EP
33
1. The SPI interface should be built up by an 8ꢀbit 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
E
VK
IT
P
ICTURE
Band_Select jumper
open = low band
Band Configuration Elements
C5, R7, R8
placed = mid/high band
See p.10, p.25 for values for
LB, MB, HB, WB
GND
DATA
CLK
GND 5V
CSB
STBY jumper
open = device ON
placed = device OFF
5V Supply here
or here
Glitch-FreeTM, Zero-DistortionTM, RF VGA
23
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
EVKIT / APPLICATIONS
400MHz to 2700MHz
C
IRCUIT
Glitch-FreeTM, Zero-DistortionTM, RF VGA
24
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
EVKIT / APPLICATIONS
C
IRCUIT (CONT
)
EVKIT BOM
Item
#
Part Reference
QTY
DESCRIPTION
Mfr. Part #
Mfr.
1
1
1
1
3
1
2
2
1
2
1
3
1
1
1
1
1
1
1
1
3
4
1
1
1
LB Mode - CAP CER 9PF 50V C0G (0402)
MB Mode - CAP CER 9PF 50V C0G (0402)
HB Mode - CAP CER 6PF 50V C0G (0402)
BB Mode - CAP CER 9PF 50V C0G (0402)
CAP CER 2PF 50V C0G (0402)
GRM1555C1H9R0DZ01D
GRM1555C1H9R0DZ01D
GRM1555C1H6R0DZ01D
GRM1555C1H9R0DZ01D
GRM1555C1H2R0BA01D
GRM1555C1H470JZ01D
GRM1555C1H102JA01D
GRM155R71C104KA88D
GRM188R60J106ME47D
ERJꢀ2GE0R00X
1
C5
Murata
2
3
4
5
6
7
8
9
C4, C32, C33
C3
Murata
Murata
Murata
Murata
Murata
CAP CER 47PF 50V C0G (0402)
C35, C36
C34, C37
C31
CAP CER 1000PF 50V C0G (0402)
CAP CER 0.1UF 16V 10% X7R (0402)
CAP CER 10UF 6.3V X5R 0603
R6, R9
R5
RES 0.0 OHM 1/10W (0402) SMD
Panasonic
Panasonic
Panasonic
RES 20 OHM 1/10W 1% (0402) SMD
RES 4700 OHM 1/10W 5% (0402) SMD
LB Mode - RES 2.2 KOHM 1/10W (0402) SMD
MB Mode - RES 2.4 KOHM 1/10W (0402) SMD
HB Mode - RES 2.67 KOHM 1/10W (0402) SMD
BB Mode - RES 2.2 KOHM 1/10W (0402) SMD
LB Mode - RES 9.1 KOHM 1/10W (0402) SMD
MB Mode - RES 27 KOHM 1/10W (0402) SMD
HB Mode - RES 75 KOHM 1/10W (0402) SMD
BB Mode - RES 20 KOHM 1/10W (0402) SMD
SMA_END_LAUNCH (small)
ERJꢀ2RKF20R0X
R1, R3, R4
ERJꢀ2GEJ472X
ERJꢀ2RKF2201X
ERJꢀ2RKF2401X
10
11
R7
R8
Panasonic
Panasonic
ERJꢀ2RKF2671X
ERJꢀ2RKF2201X
ERJꢀ2RKF9101X
ERJꢀ2RKF2702X
ERJꢀ2RKF7502X
ERJꢀ2RKF2002X
12
13
14
15
16
J1, J6, J7
142ꢀ0711ꢀ821
Emerson Johnson
J3, J4, J5, J8
CONN HEADER VERT SGL 2POS GOLD
CONN HEADER VERT SGL 4POS GOLD
RF Amp
961102ꢀ6404ꢀAR
961104ꢀ6404ꢀAR
F0480
3M
J2
3M
U1
IDT
SBC
Printed Circuit Board
F0480 EVKIT
Glitch-FreeTM, Zero-DistortionTM, RF VGA
25
Rev 3, April 2015
IDTF0480NBGI
Datasheet
Matched Broadband RF VGA
400MHz to 2700MHz
A
PPLICATIONS NFORMATION
I
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
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
Glitch-FreeTM, Zero-DistortionTM, RF VGA
26
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
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