Datasheet (Advance Information)
TC2411
14-Bit, 1 GSPS Digital-to-Analog Converter
with Standby Mode of Operation
The TC2411 is a 14-bit, 1 GSPS digital-to-analog
converter that delivers exceptional high-frequency
performance. The TC2411 is designed to support
single or multiple transmit IF signals up to 500 MHz
and to deliver superior dynamic range at a sampling
rate up to a guaranteed 1 GSPS. A power down
feature has been incorporated into the TC2411
which allows the part to be placed into a Standby
Mode of operation.
•
•
•
High resolution
High Clock rate
Standby Mode for lower power dissipation
Applications
The TC2411’s high sample rate makes it ideal for
the following applications:
•
Signal generation
•
Direct digital synthesis (DDS)
•
Test and measurement
•
Software radio
•
Single- and multi-carrier transceivers
•
Radar (Including Burst mode capability)
Technical Features
•
•
•
•
•
•
•
•
•
Signal-Noise Ratio…..……......74dBc @126MHz
Signal Input……………1000MSPS, 14bits LVDS
Spur Free Dynamic Range…...75dBc @126MHz
Clock Input Drive.. 0 to +13dBm, 25Ω differential
Full Scale Output……..…-2dBm, 50Ω differential
Voltage Reference……...2.5V Bandgap On-Chip
Power Dissipation …..……………………….1.8W
Technology ……………….0.5 µm SiGe BiCMOS
Packaging......96 ball, Pb-free, Cavity-down BGA
Description
As shown in the functional block diagram below, the
TC2411 features a 5-Bit Unary + 9-Bit Binary R2R
architecture. 14-bit straight binary data can be input
to the DAC at a sample rate of up to 1 GSPS. The
DAC provides low-noise and low-spurious
performance with digital IF input signals across the
first Nyquist band.
The highly linear analog output produced by the
TC2411 may be filtered externally to reject the signal
image, and is suitable for single-stage upconversion
applications.
Ordering Information
PART
NUMBER
TC2411-IB
TC2411-KIT
TEMP RANGE
(°C)
-40°C to +85°C
+25C
PACKAGE
96 ball Pb-free
BGA
CLOCK
SPEED
1000 MHz
Evaluation Kit
5
Digital
Input
Clock In
2.5V
Ref Out
2.5V
Ref In
14
Buffer
+
Register
5 MSB
Decode
31
Register
31
Unary
9
Analog
Output
R-2R
Ladder
Buf
9
Binary
Amp
Band
Gap
Amp
Ref
Cell
Figure 1: TC2411 Functional Block Diagram
1
Copyright 2004 TelASIC Communications, Inc. All rights reserved. www.telasic.com
Tel: 310.955.3838
.
Specifications subject to change without notice.
Datasheet (Advance Information)
TC2411
Absolute Maximum Ratings
(Electrical performance is not guaranteed at absolute maximum ratings. Exposure to absolute
maximum ratings for an extended period of time may impair the useful life of the product)
Parameter
Max
Unit
Electrical
+5.0V Supply Voltage AVCC, DVDD
+5.5
V
+3.3V Supply Voltage DVCC
+3.6
V
-5.0V Supply Voltage AVEE, DVEE
-5.5
V
Clock Input Voltage
+4.0
Vpp
Environmental
Operating Temp Range
Storage Temp Range
Maximum Junction Temperature
Reflow Soldering Peak Temperature
-40 to +85
-65 to +150
+110
+260
o
o
C
C
o
C
o
C
TC2411 Electrical Specifications
(AVEE, DVEE = -5V; AVCC, DVDD = +5V; DVCC = +3.3V; IOUT = 20 mA, -40
o
C to +85°C ambient, unless otherwise noted)
DC SPECIFICATIONS
CONDITION
MIN
TYP
MAX
UNITS
Supply Voltages
AVCC, DVDD
DVCC
AVEE
DVEE
Normal Mode
AVCC + DVDD + DVCC Current
AVEE + DVEE Current
Power Consumption
Reference Voltage info
Reference Output Load Regulation
Resolution
Standby Mode
AVCC + DVDD + DVCC Current
AVEE + DVEE Current
Power Consumption
40
140
850
mA
mA
mW
Vout_REF
0 < Isource < Imax
14
30
330
1.8
2.5
mA
mA
W
V
mV
Bits
4.75
3.13
-5.25
-5.25
5.0
3.3
-5.0
-5.0
5.25
3.46
-4.75
-4.75
V
V
V
V
2
MKDSTC2411 Rev-
Datasheet (Advance Information)
TC2411
TC2411 Electrical Specifications continued
DIGITAL SPECIFICATIONS
(AVEE, DVEE = -5V; AVCC, DVDD = +5V; DVCC = +3.3V; IOUT = 20 mA, -40
o
C to +85°C ambient, unless otherwise noted)
CONDITION
MIN
TYP
MAX
UNITS
Logic Inputs (N1- N14, P1 – P14)
Compatibility
Input Impedance
Common Mode Voltage (VCM)
Differential Input High Level
Differential Input Low Level
Data Coding
Switching characteristics
Setup Time
Hold Time
Propagation Delay Time
Data Rise Time
Data Fall Time
Reset (RST)
High Level
Low Level
Pulse Width
Pulse Repetition Rate
Propagation Delay
Standby Mode (SLP, SLN)
Single Ended Drive
Low Level
High Level
0
3.3
1.0
1.4
Volts
Volts
Volts
Volts
2.5
DC
3
200
3.3
0
Volts
Volts
ns
MHz
Clock
cycles
10% to 90 %
90% to 10 %
130
440
400
220
230
ps
ps
ps
ps
ps
VCM = +1.2V
VCM = +1.2V
Binary
-100
LVDS
100
+1.2
+100
ohms
V
mV
mV
Differential drive (External100Ω)
Low Level
High Level
ANALOG SPECIFICATIONS
CONDITION
MIN
TYP
MAX
UNITS
DAC Clock (CLKP, CLKN)
Maximum Conversion Rate
Differential Input Voltage
Common-mode Input Voltage
Differential Input Resistance
Analog Output (VOP, VON)
Full Scale Output Voltage
Differential Output Resistance
20 mA Differential
Output Current
0.480
50
Vp-p
ohms
Guaranteed
1000
1.5
-3.1
25
MSPS
Vpp
V
ohms
3
MKDSTC2411 Rev-
Datasheet (Advance Information)
TC2411
DYNAMIC SPECIFICATIONS
CONDITION
MIN
TYP
MAX
UNITS
DAC Output vs Frequency @ -0.5 dBFS
f
out
= 33 MHz
f
out
= 126 MHz
f
out
= 251 MHz
f
out
= 376 MHz
f
out
= 490 MHz
Noise Spectral Density @ -0.5 dBFS
f
out
= 33 MHz
f
out
= 126 MHz
f
out
= 251 MHz
f
out
= 376 MHz
f
out
= 490 MHz
SFDR vs Frequency @ -0.5 dBFS
f
out
= 33 MHz
f
out
= 126 MHz
f
out
= 251 MHz
f
out
= 376 MHz
f
out
= 490 MHz
IMD
IF = 135 MHz, 145 MHz
IF = 110 MHz, 120 MHz, 130 MHz, 140 MHz
ACPR (EDGE)
IF = 260 MHz
IF = 230 MHz, 240 MHz, 260 MHz, 270 MHz
ACPR (WCDMA)
IF = 260 MHz
IF = 230 MHz, 240 MHz, 260 MHz, 270 MHz
Analog Output Response
Output Settling Time
Output Rise Time (10 - 90%)
Output Fall Time (90 – 10%)
Glitch Energy
-FS to +FS transition
+FS to -FS transition
-MS to +MS transition
+MS to -MS transition
MS = Mid-Scale
FS = Full-Scale
0.5
0.1
0.4
0.2
ps-V
ps-V
ps-V
ps-V
220
230
pS
pS
pS
1 Tone @ -10.5 dBFS
4 Tones @ -17.5 dBFS
-75
-76
dBc
dBc
1 Tone @ -3.5 dBFS
4 Tones @ -15.5 dBFS
-95
-88
dBc
dBc
2 Tones @ -6.5 dBFS
4 Tones @ -12.5 dBFS
-82
-82
dBc
dBc
-78
-75
-70
-65
-60
dBc
dBc
dBc
dBc
dBc
-166
-164
-161
-161
-160
dBm/Hz
dBm/Hz
dBm/Hz
dBm/Hz
dBm/Hz
-3
-3
-5
-8
-9
dBm
dBm
dBm
dBm
dBm
4
MKDSTC2411 Rev-
Datasheet (Advance Information)
TC2411
TC2411 Thermal Characteristics
Normal Mode of Operation
Package
19X19 Cavity-down
BGA 96L
θ
JC
( C/W)
o
θ
JA
(
o
C/W)
0 m/s
20.2
2m/s
18.5
3m/s
17.5
Note
Results based on FEA simulation
without heat sink.
2.72
•
•
•
•
•
•
The DC power of the TC2411 is 1.8 W in normal mode of operation
Maximum Junction Temperature is not to exceed 110
o
C.
There is no need for an external heat sink if maximum ambient temperature is +70
o
C.
An external heat sink is recommended for ambient temperatures in excess of +70
o
C to insure that the
junction temperature does not exceed 110
o
C maximum.
Use of standby mode reduces the average power dissipation proportional to the normal mode / standby
mode duty cycle and allows a higher ambient temperature before a heat sink must be used to insure that
the junction temperature does not exceed 110
o
C maximum.
In the above table,
θ
JA
is presented according to JEDEC JESD 51-2 (natural convection) and 51-6 (forced
convection). Thermal simulation assumes the package is mounted on the test board specified by JEDEC
JESD51-9 (101.6X114.3X1.6 mm, four layers).
Note:
θ
JC
: Thermal resistance from junction to case.
θ
JA
: Thermal resistance from junction to ambient.
Figure 2: Standby Mode Operational Truth Table
Control Signal
STDBY_P
STDBY_N
Normal Mode
L
H
Standby Mode
H
L
Figure 3: Standby/Normal Mode Timing
STDBY_P
Standby
Mode
STDBY_N
Normal Mode
Standby
Mode
<5
µ
S
<5
µ
S
5
MKDSTC2411 Rev-
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