IDTF1320NBGI
F1300
ARY DATASHEET
DPD Demodulator for PA Linearization
Datasheet
DATASHEET
550MHz to 1150MHz
G
ENERAL
D
ESCRIPTION
This document describes the specification for the
IDTF1320
Digital Pre-Distortion
Demodulator for PA
linearization. This device is one of 2 variants to cover
common UTRA bands. See the Part# Matrix below for
details.
F
EATURES
(I
OR
Q
PATH
)
Wide flat performance IF BW
Wide RF and LO BWs (~ 0.8 GHz)
Ideal for Multi-Carrier Systems
Drives ADC directly
Ultra linear
+43 dBm IP3
O
Low Noise Figure
Excellent ACLR performance
200 Ω
output impedance
Fully integrated DPD demodulator
6x6 36 pin package
Standby Mode w/Fast Recovery
I
CC
:
262 mA
C
OMPETITIVE
A
DVANTAGE
In typical basestation transmitters a digital pre-distortion
loop is employed to improve the Transmitter
performance. The signal coming out of the PA is
sampled so that the I&Q data at Baseband can be pre-
distorted before being sent to the Tx DAC to counteract
the distortion inherent in the downstream PA. The signal
coupled from the PA is adjusted via a digital step
attenuator to a lower level and then sub-sampled at an
IF frequency of ~200 MHz which necessitates the need
for a highly linear demodulator to downmix to
quadrature IF from the Transmit frequency. By
sampling IF_I and IF_Q independently and then digitally
combining these signals, an effective doubling of the
sample rate can be achieved. Any distortion in this path
will degrade the performance of the DPD algorithm. By
utilizing an ultra-linear demodulator w/integrated DSA
such as the IDTF1320, the ACLR and/or power
consumption of the full Tx system can be improved
significantly.
DPD full path ACLR:
1 dB
Icc: DPD function Power
Consumption
40%
Zero-Distortion
TM
Demod
eliminates 2 IF amps
Integrates 2 BPFs, 2 Baluns,
2 SP2Ts
D
EVICE
B
LOCK
D
IAGRAM
CSb SDI CLK
SPI
DEC
IF
I
SPLIT
STBY
Bias
Control
.
RFSW
I
SET
2
90
LOSW
O
I
BIAS
RF
IN_Y
RF
IN_X
LO
IN_A
LO
IN_B
IF
Q
RF VCO
O
RDERING
I
NFORMATION
Omit IDT
prefix
TM
Glitch-Free
TM
Glitch-Free
TM
gain control
0.8 mm height Tape &
package
Reel
P
ART
# M
ATRIX
Part#
RF range
UTRA
bands
5,6,8,12,13,
14,17
1,2,3,4,9,10
7,21, 24, 38
IF freq
range
20 - 35 0
Typ.
Gain
12.5
Injection
High Side
or Low Side
High Side
or Low Side
IDTF1320NBGI8
RF product Line
Green
Industrial
Temp range
F1320
550 - 1150
F1370
1300 - 2900
20 - 50 0
12.5
IDT Zero-Distortion
TM
, Glitch-Free
TM
DPD Receiver
1
Rev4 January 2014
IDTF1320NBGI
F1300
ARY DATASHEET
DPD Demodulator for PA Linearization
Datasheet
DATASHEET
550MHz to 1150MHz
A
BSOLUTE
M
AXIMUM
R
ATINGS
V
CC
to GND
SW_Latch, DATA, CSb, CLK
STBY
IF_I+, IF_I-, IF_Q+, IF_Q-
IF_BiasI, IF_BiasQ to GND
LO_ADJ to GND
RF Input Power (Into RFIN_X or RFIN_Y)
Continuous Power Dissipation
θ
JA
(Junction – Ambient)
θ
JC
(Junction – Case)
The Case is defined as the exposed paddle
Operating Temperature Range (Case Temperature)
Maximum Junction Temperature
Storage Temperature Range
Moisture Sensitivity Level
Lead Temperature (soldering, 10s)
-0.3V to +5.5V
0V to 3.6V
0V to V
CC
1V to (Vcc + 0.3V)
-0.3V to +1.2V
2.1V to 4.0V
+27 dBm
2.5W
+40°C/W
+3°C/W
T
C
= -40°C to +105°C
150°C
-65°C to +150°C
1
+260°C
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.
IDT Zero-Distortion
TM
, Glitch-Free
TM
DPD Receiver
2
Rev4 January 2014
IDTF1320NBGI
F1300
ARY DATASHEET
DPD Demodulator for PA Linearization
Datasheet
DATASHEET
550MHz to 1150MHz
IDTF1320 S
PECIFICATION
Refer to Typical Application
Circuit when operated with
V
CC
= +5.0V, T
CASE
= 25C, ,
F
RF
= 860 MHz, F
LO
= 1060 MHz,
Gain = G
MAX
, P
LO
= 0
dBm, T
C
= +25°C, STBY = GND, unless otherwise noted. Full Lineup measured through to I or Q path.
IF Transformers and RF trace
losses de-embedded.
Parameter
Logic Input High
Logic Input Low
Logic Current
Supply Voltage(s)
Temperature Range
Supply Current
Supply Current
RF Freq Range
IF center Freq Range
Oversample Operating
Range
Comment
For
STBY, DATA, CSb, CLK, SW_Latch
For
STBY, DATA, CSb, CLK, SW_Latch
V
H
= 2.3V, V
L
= 0V
Symbol
V
IH
V
IL
I
IH,
I
IL
V
CC
T
CASE
I
SUPP
STBY > V
IH
min
2.3
typ
max
0.5
units
V
V
μA
V
-135
4.75 to
5.25
-40
262
22
700
100
550
+10
All V
CC
(operating range)
Operating Range
Total V
CC
Standby Mode:
Sets LO freq range
Sets LO freq range
Measure Gain at I&Q
Gain setting = G
MAX
F
LO
= 950 MHz, 1080 MHz
Gain Delta < 2.5 dB
Measure Gain at I&Q
Gain setting = G
MAX
F
LO
= 950 MHz, 1080 MHz
Gain Delta < 2.5 dB
RF Freq = 860 MHz
IP3O > +39 dBm
From RF_INX to I+,I- & Q+,Q-
Pin = -11 dBm/Tone
Gain setting = G
MAX
IF Freq = 200 MHz
IP3O > +37.5 dBm
From RF_INX to I+,I- & Q+,Q-
Pin = -11 dBm/Tone
Gain setting = G
MAX
Operating Range
+105
290
1
27
1100
250
1150
degC
mA
mA
MHz
MHz
MHz
I
STBY
F
RF
F
IF
F
RFD
Oversample IF Range
F
IFD
20
350
MHz
IF Linearity BW
IF
LIN
100
300
MHz
RF Linearity BW
LO Freq Range
LO Power
RF Input Impedance
IF Output Impedance
LO port Impedance
Gain maximum
Gain minimum
RF
LIN
F
LOH
P
LO
Z
RF
Z
IF
Z
LO
G
MAX
or
ATTN
MIN
G
MIN
or
ATTN
MAX
700
500
-3 to +3
50
200
50
11
-15
12.5
-13.5
1100
1300
MHz
MHz
dBm
Ω
Ω
Ω
Operating Range
Single Ended (RL > 10 dB)
Differential (RL > 10 dB)
Single Ended (RL > 10 dB)
From RF_INX to I+,I- & Q+,Q-
Gain setting = G
MAX
Pin = -11 dBm
From RF_INX to I+,I
Gain setting = G
MIN
Pin = +14 dBm
14
-12
dB
dB
IDT Zero-Distortion
TM
, Glitch-Free
TM
DPD Receiver
3
Rev4 January 2014
IDTF1320NBGI
F1300
ARY DATASHEET
DPD Demodulator for PA Linearization
Datasheet
DATASHEET
550MHz to 1150MHz
IDTF1320 S
PECIFICATION
- C
ONTINUED
Refer to Typical Application
Circuit when operated with
V
CC
= +5.0V, T
CASE
= 25C, ,
F
RF
= 860 MHz, F
LO
= 1060 MHz,
Gain = G
MAX
, P
LO
= 0
dBm, T
C
= +25°C, STBY = GND, unless otherwise noted. Full Lineup measured through to I or Q path.
IF Transformers and RF trace
losses de-embedded.
Parameter
Noise Figure
Output IP3 – G
MAX
Comment
From RF_INX to I+,I- out
Gain setting = G
MAX
Measured at I+,I- and Q+,Q-
P
IN
= -11 dBm per tone
5 MHz Tone Separation
Gain setting = G
MAX
Measured at I+,I- and Q+,Q-
P
IN
= +9 dBm per tone
5 MHz Tone Separation
Gain setting = G
-20
Measured at I+,I- and Q+,Q-
P
IN
= -11 dBm
F
RF
= 860, F
LO
= 970
Gain setting = G
MAX
Measured at I+,I- and Q+,Q-
P
IN
= -11 dBm per tone
5 MHz Tone Separation
Gain setting = G
MAX
Measured at I+,I- and Q+,Q-
P
IN
= +4 dBm
Gain setting = G
MAX
Fixed LO = 1020 MHz
RF = 650 to 1000 MHz
IF = 20 to 370 MHz
Fixed LO = 1061.5 MHz
RF = 591.5MHz to 1041.5MHz
IF = 20 to 470 MHz
Fixed LO = 1020 MHz
RF = 650 to 1000 MHz
IF = 20 to 350 MHz
From RF_INX to I+,I- & Q+,Q-
Gain setting = G
MAX
Pin = -11 dBm
F
RF
= 860, F
LO
= 1060
Measure with 20 GSa/sec scope
F
RF
= 860, F
LO
= 1060
Tc = -40C to 100C
LO drive = -3 dBm to +3 dBm
Measure with 20 GSa/sec scope
F
RF
= 860, F
LO
= 1060
Tc = -40C to 100C
LO drive = -3 dBm to +3 dBm
Measure with 20 GSa/sec scope
Symbol
NF
IP3
MAX
min
typ
18.3
max
units
dB
dBm
39
43
Output IP3 – G
-20
IP3
-20
39
2
42
dBm
2
nd
Harmonic
H2
-70
-76
dBc
Output IP2
IP2
O
59
65
dBm
Output compression
Gain Ripple1
Gain Ripple2
Group Delay Distortion
Quadrature Amplitude
Balance
Quadrature Phase
Balance
Amplitude Balance over
environmentals
Quadrature Phase
Balance over
environmentals
LO to IF leakage
LO to RF leakage
RF to IF isolation
Attenuator Range
C
Ripple1
Ripple2
GDD
BAL
G
BAL
Φ
BAL
G
-0.2
-3
-0.4
0.3
0.8
1.1
2
1
1.4
1.5
dB
dB
dB
nsec
0.2
+3
+0.4
dB
degrees
dB
BAL
Φ
ISO
LI
ISO
LR
ISO
RI
Range
-3
-30
-40
-32
25.5
+3
-25
degrees
dBm
dBm
-23
dB
dB
IDT Zero-Distortion
TM
, Glitch-Free
TM
DPD Receiver
4
Rev4 January 2014
IDTF1320NBGI
F1300
ARY DATASHEET
DPD Demodulator for PA Linearization
Datasheet
DATASHEET
550MHz to 1150MHz
IDTF1320 S
PECIFICATION
- C
ONTINUED
Refer to Typical Application
Circuit when operated with
V
CC
= +5.0V, T
CASE
= 25C, ,
F
RF
= 860 MHz, F
LO
= 1060 MHz,
Gain = G
MAX
, P
LO
= 0
dBm, T
C
= +25°C, STBY = GND, unless otherwise noted. Full Lineup measured through to I or Q path.
IF Transformers and RF trace
losses de-embedded.
Parameter
Attenuator Glitching
Attenuator Step Accuracy
Attenuator Abs. Accuracy
Attenuator Resolution
Serial Clock Speed
Data to Clock Setup
Data to Clock Hold
Clock to CS Setup
Clock Pulse Width
LO Switch Isolation
RF Switch Isolation
Comment
Step from 15.5 to 16 dB
Step from 16 to 15.5 dB
Measure maximum excursion
Symbol
ATTN
G
DNL
INL
LSB
min
typ
0.5
0.2
0.2
0.5
20
max
units
dB
dB
0.5
dB
dB
SPI 3 wire bus
SPI 3 wire bus
SPI 3 wire bus
SPI 3 wire bus
SPI 3 wire bus
F
CLOCK
T
S
T
H
T
EN
T
W
ISO
LOSW
ISO
RFSW
3
3
3
5
50
MHz
ns
ns
ns
ns
-45
-45
-36
-43
dB
dB
RF Switch and attenuator settling times
3
EN bit on
EN bit off
RF switched X to Y (no Y
signal)
RF switched Y to X (no Y
signal)
LO switched A to B (no B
signal)
LO switched B to A (no B
signal)
Attenuator switched 0dB
to 25.5dB (max)
Attenuator switched
25.5dB (max) to 0dB
Attenuator switched
15.5dB to 16dB
Attenuator switched 16dB
to 15.5dB
EN
ON
EN
OFF
RF
SWXY
RF
SWYX
LO
SWAB
LO_INA: 1050MHz, +3dBm
RF_INX: 850MHz, -10dBm
100
50
130
200
40
20
300
300
nsec
LO
SWBA
ATT
SETL
250
300
S
PECIFICATION
N
OTES
:
1 – Items in min/max columns in
bold italics
are Guaranteed by Test
2 – All other Items in min/max columns are Guaranteed by Design Characterization
3 – Excludes SPI write time
IDT Zero-Distortion
TM
, Glitch-Free
TM
DPD Receiver
5
Rev4 January 2014
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