19-2879; Rev 0; 7/03
KIT
ATION
EVALU
E
BL
AVAILA
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
General Description
The MAX5858 dual, 10-bit, 300Msps digital-to-analog con-
verter (DAC) provides superior dynamic performance in
wideband communication systems. The MAX5858 inte-
grates two 10-bit DAC cores, 2x/4x programmable digital
interpolation filters, and a 1.24V reference. The MAX5858
supports single-ended and differential modes of operation.
The MAX5858 dynamic performance is maintained over
the entire power-supply operating range of 2.7V to 3.3V.
The analog outputs support a compliance voltage of -1.0V
to +1.25V.
The 4x/2x programmable interpolation filters feature
excellent passband distortion and noise performance.
Interpolating filters minimize the design complexity of
analog reconstruction filters while lowering data bus
and clock speeds of the digital interface. To reduce the
I/O pin count, the DAC can also operate in interleave
data mode. This allows the MAX5858 to be updated on
a single 10-bit bus.
The MAX5858 features digital control of channel gain
matching to within ±0.4dB in 16 0.05dB steps. Channel
matching improves sideband suppression in analog
quadrature modulation applications. The on-chip 1.24V
bandgap reference includes a control amplifier that
allows external full-scale adjustments of both channels
through a single resistor. The internal reference can be
disabled and an external reference may be applied for
high-accuracy applications.
The MAX5858 features full-scale current outputs of 2mA
to 20mA and operates from a 2.7V to 3.3V single sup-
ply. The DAC supports three modes of power-control
operation: normal, low-power standby, and complete
power-down. In power-down mode, the operating
current is reduced to 1µA.
The MAX5858 is packaged in a 48-pin TQFP with exposed
paddle (EP) for enhanced thermal dissipation and is spec-
ified for the extended (-40°C to +85°C) temperature range.
o
10-Bit Resolution, Dual DAC
o
300Msps Update Rate
o
Integrated 4x/2x Interpolating Filters
o
2.7V to 3.3V Single Supply
o
Full Output Swing and Dynamic Performance at
2.7V Supply
o
Superior Dynamic Performance
75dBc SFDR at f
OUT
= 20MHz
UMTS ACLR = 63dB at f
OUT
= 30.7MHz
o
Programmable Channel-Gain Matching
o
Integrated 1.24V Low-Noise Bandgap Reference
o
Single-Resistor Gain Control
o
Interleave Data Mode
o
Differential Clock Input Modes
o
EV Kit Available—MAX5858 EV Kit
Features
MAX5858
Ordering Information
PART
MAX5858ECM
*EP
= Exposed paddle.
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
48 TQFP-EP*
Pin Configuration
48
47
46
45
44
43
42
41
40
39
38
37
OUTNA
OUTPB
OUTNB
REFR
N.C.
DGND
OUTPA
DVDD
AGND
1
DA9/PD
2 DA8/DACEN
3 DA7/F2EN
4 DA6/F1EN
5 DA5/G3
AVDD
AVDD
N.C.
REFO
36
REN 35
I.C. 34
CGND 33
CVDD 32
CLKXN 31
CLKXP 30
CGND 29
I.C. 28
CW 27
DB0 26
24
Applications
Communications
SatCom, LMDS, MMDS, HFC, DSL, WLAN,
Point-to-Point Microwave Links
Wireless Base Stations
Direct Digital Synthesis
Instrumentation/ATE
6 DGND
7 DVDD
8 DA4/G2
9 DA3/G1
10 DA2/G0
11 DA1
MAX5858
DGND
DVDD
DB8
DB7
CLK
DB4
DB3
23
DB6
DB9
DB5
13
14
15
16
17
18
19
20
21
22
TQFP-EP
NOTE:
EXPOSED PADDLE CONNECTED TO GND.
________________________________________________________________
Maxim Integrated Products
DB2
12 DA0
DB1
25
IDE
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
MAX5858
ABSOLUTE MAXIMUM RATINGS
AV
DD
, DV
DD
, CV
DD
to AGND, DGND, CGND .........-0.3V to +4V
DA9–DA0, DB9–DB0,
CW, REN
to AGND,
DGND, CGND .......................................................-0.3V to +4V
IDE to AGND, DGND, CGND...................-0.3V to (DV
DD
+ 0.3V)
CLKXN, CLKXP to CGND.........................................-0.3V to +4V
OUTP_, OUTN_ to AGND.......................-1.25V to (AV
DD
+ 0.3V)
CLK to DGND ..........................................-0.3V to (DV
DD
+ 0.3V)
REFR, REFO to AGND .............................-0.3V to (AV
DD
+ 0.3V)
AGND to DGND, DGND to CGND,
AGND to CGND..................................................-0.3V to +0.3V
Maximum Current into Any Pin
(excluding power supplies) ............................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TQFP-EP (derate 36.2mW/°C above +70°C) ....2.898W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(AV
DD
= DV
DD
= CV
DD
= 3V, AGND = DGND = CGND = 0, f
DAC
= 165Msps, no interpolation, external reference, V
REF
= 1.2V,
I
FS
= 20mA, output amplitude = 0dB FS, differential output, T
A
= T
MIN
to T
MAX
, unless otherwise noted. T
A
> +25°C guaranteed by
production test. T
A
< +25°C guaranteed by design and characterization. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC PERFORMANCE
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error (See
Gain Error
Parameter Definitions
Section)
DYNAMIC PERFORMANCE
Maximum Output DAC Update
Rate
Glitch Impulse
f
OUT
= 5MHz,
T
A
≥
+25°C
f
DAC
= 165Msps
Spurious-Free Dynamic Range to
Input Update Rate Nyquist
SFDR
f
DAC
= 300Msps,
2x interpolation
f
OUT
= 20MHz
f
OUT
= 40MHz
f
OUT
= 60MHz
f
OUT
= 5MHz
f
OUT
= 40MHz
f
OUT
= 60MHz
Spurious-Free Dynamic Range
Within a Window
f
DAC
= 200Msps, 2x interpolation;
f
OUT
= 40MHz, span = 20MHz
f
DAC
= 165Msps, f
OUT
= 5MHz,
span = 4MHz
MTPR
ACLR
f
DAC
= 165Msps, f
OUT
= 20MHz
f
DAC
=122.88Msps, f
OUT
= 30.72MHz
78
69
f
DAC
300
5
76
75
65
63
76
78
70
85
dBc
85
76
63
dBc
dB
dBc
Msps
pV-s
INL
DNL
V
OS
GE
Internal reference (Note 1)
External reference
R
L
= 0
Guaranteed monotonic, R
L
= 0
10
-1.25
-0.75
-0.5
-9
-5
±0.5
±0.25
±0.1
±1.5
±1.5
+1.25
+0.75
+0.5
+10
+7
Bits
LSB
LSB
LSB
%
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SFDR
Multitone Power Ratio, 8 Tones,
300kHz Spacing
Adjacent Channel Leakage Ratio
with UMTS
2
_______________________________________________________________________________________
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= CV
DD
= 3V, AGND = DGND = CGND = 0, f
DAC
= 165Msps, no interpolation, external reference, V
REF
= 1.2V,
I
FS
= 20mA, output amplitude = 0dB FS, differential output, T
A
= T
MIN
to T
MAX
, unless otherwise noted. T
A
> +25°C guaranteed by
production test. T
A
< +25°C guaranteed by design and characterization. Typical values are at T
A
= +25°C.)
PARAMETER
Total Harmonic Distortion to
Nyquist
Noise Spectral Density
Output Channel-to-Channel
Isolation
Gain Mismatch Between
Channels
Phase Mismatch Between
Channels
Wideband Output Noise
ANALOG OUTPUT
Full-Scale Output Current Range
Output Voltage Compliance
Range
Output Leakage Current
REFERENCE
Reference Output Voltage
Output-Voltage Temperature Drift
Reference Output Drive
Capability
Reference Input Voltage Range
Reference Supply Rejection
Current Gain
I
FS
/I
REF
-0.005dB
Passband Width
f
OUT
/
0.5f
DAC
-0.01dB
-0.1dB
-3dB
0.604f
DAC
/ 2 to 1.396f
DAC
/ 2
Stopband Rejection
0.600f
DAC
/ 2 to 1.400f
DAC
/ 2
0.594f
DAC
/ 2 to 1.406f
DAC
/ 2
0.532f
DAC
/ 2 to 1.468f
DAC
/ 2
Group Delay
INTERPOLATION FILTER
(2x interpolation)
0.398
0.402
0.419
0.478
74
62
53
14
18
Data
clock
cycles
Data
clock
cycles
dB
MHz/
MHz
REN
= AV
DD
0.10
0.2
32
V
REF0
TCV
REF
REN
= AGND
1.14
1.24
±50
50
1.25
1.32
V
ppm/°C
µA
V
mV/V
mA/mA
Power-down or standby mode
I
FS
2
-1.00
-5
20
+1.25
+5
mA
V
µA
SYMBOL
THD
N
D
CONDITIONS
f
DAC
= 165Msps; f
OUT
= 5MHz
f
DAC
= 165Msps; f
OUT
= 5MHz
f
OUT
= 5MHz
f
OUT
= 5MHz
f
OUT
= 5MHz
MIN
TYP
-72
-143
80
±0.05
±0.15
50
MAX
UNITS
dB
dBm/Hz
dB
dB
Degrees
pA/√Hz
MAX5858
Impulse Response Duration
22
_______________________________________________________________________________________
3
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
MAX5858
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= CV
DD
= 3V, AGND = DGND = CGND = 0, f
DAC
= 165Msps, no interpolation, external reference, V
REF
= 1.2V,
I
FS
= 20mA, output amplitude = 0dB FS, differential output, T
A
= T
MIN
to T
MAX
, unless otherwise noted. T
A
> +25°C guaranteed by
production test. T
A
< +25°C guaranteed by design and characterization. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
-0.005dB
Passband Width
f
OUT
/
0.5f
DAC
-0.01dB
-0.1dB
-3dB
0.302f
DAC
/ 2 to 1.698f
DAC
/ 2
Stopband Rejection
0.300f
DAC
/ 2 to 1.700f
DAC
/ 2
0.297f
DAC
/ 2 to 1.703 f
DAC
/ 2
0.266f
DAC
/ 2 to 1.734f
DAC
/ 2
Group Delay
CONDITIONS
MIN
TYP
0.200
0.201
0.210
0.239
74
63
53
14
22
Data
clock
cycles
Data
clock
cycles
V
0.8
V
IH
= 2V
V
IL
= 0.8V
-1
-1
3
0.9
×
DV
DD
0.1
×
DV
DD
CV
DD
/ 2
0.5
Single-ended clock drive
No interpolation
Input Data Rate
Output Settling Time
Output Rise Time
Output Fall Time
f
DATA
t
s
2x interpolation
4x interpolation
To ±0.1% error band (Note 2)
10% to 90% (Note 2)
90% to 10% (Note 2)
11
2.5
2.5
5
165
150
75
ns
ns
ns
Msps
+1
+1
V
µA
µA
pF
dB
MHz/
MHz
MAX
UNITS
INTERPOLATION FILTER
(4x interpolation)
Impulse Response Duration
LOGIC INPUTS (IDE,
CW, REN,
DA9–DA0, DB9–DB0)
Digital Input-Voltage High
Digital Input-Voltage Low
Digital Input-Current High
Digital Input-Current Low
Digital Input Capacitance
DIGITAL OUTPUTS (CLK)
Digital Output-Voltage High
Digital Output-Voltage Low
V
OH
V
OL
I
SOURCE
= 0.5mA, Figure 1
I
SINK
= 0.5mA, Figure 1
V
IH
V
IL
I
H
I
IL
C
IN
2
27
V
V
DIFFERENTIAL CLOCK INPUT (CLKXP, CLKXN)
Clock Input Internal Bias
Differential Clock Input Swing
Clock Input Impedance
TIMING CHARACTERISTICS
V
V
P-P
kΩ
4
_______________________________________________________________________________________
Dual, 10-Bit, 300Msps, Current-Output DAC with
4x/2x/1x Interpolation Filters
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= CV
DD
= 3V, AGND = DGND = CGND = 0, f
DAC
= 165Msps, no interpolation, external reference, V
REF
= 1.2V,
I
FS
= 20mA, output amplitude = 0dB FS, differential output, T
A
= T
MIN
to T
MAX
, unless otherwise noted. T
A
> +25°C guaranteed by
production test. T
A
< +25°C guaranteed by design and characterization. Typical values are at T
A
= +25°C.)
PARAMETER
DATA-to-CLK Rise Setup Time
DATA-to-CLK Rise Hold Time
DATA-to-CLK Fall Setup Time
DATA-to-CLK Fall Hold Time
Control Word to
CW
Fall Setup
Time
Control Word to
CW
Fall Hold
Time
CW
High Time
CW
Low Time
DACEN Rise-to-V
OUT
Stable
PD Fall-to-V
OUT
Stable
Clock Frequency at
CLKXP/CLKXN Input
CLKXP/CLKXN Differential Clock
Input to CLK Output Delay
Minimum CLKXP/CLKXN Clock
High Time
Minimum CLKXP/CLKXN Clock
Low Time
POWER REQUIREMENTS
Analog Power-Supply Voltage
Analog Supply Current
Digital Power-Supply Voltage
AV
DD
I
AVDD
DV
DD
(Note 4)
2.7
2.7
45
3.3
49
3.3
V
mA
V
t
STB
t
PDSTB
f
DAC
t
CXD
t
CXH
t
CXL
External reference
Differential clock
4.6
1.5
1.5
SYMBOL
t
DCSR
t
DCHR
t
DCSF
t
DCHF
t
CWS
t
CWH
(Note 3)
(Note 3)
(Note 3)
(Note 3)
CONDITIONS
MIN
1.5
0.4
1.7
1.1
2.5
2.5
5
5
0.7
0.5
300
TYP
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
µs
ms
MHz
ns
ns
ns
MAX5858
_______________________________________________________________________________________
5
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