19-0566; Rev 0; 7/06
KIT
ATION
EVALU
BLE
AVAILA
1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
General Description
The MAX2059 high-linearity digital-variable-gain amplifier
(DVGA) is designed to provide 56dB of total gain range
and typical output IP3 and output P1dB levels of
+31.8dBm and +18.4dBm, respectively. The device is
ideal for a variety of applications, including single and
multicarrier 1700MHz to 2200MHz DCS 1800/PCS 1900
EDGE, cdma2000
®
, WCDMA/UMTS, and TD-SCDMA
base stations. The MAX2059 yields a high level of com-
ponent integration, which includes two 5-bit digital
attenuators, a two-stage driver amplifier, a loopback
mixer, and a serial interface to control the attenuators.
The MAX2059 is pin compatible with the MAX2058
700MHz to 1200MHz DVGA, facilitating an easy
design-in for applications where a common PC board
layout is used for both frequency bands.
The MAX2059 is available in a 40-pin thin QFN pack-
age with an exposed paddle. Electrical performance is
guaranteed over a -40°C to +85°C temperature range.
♦
+31.8dBm Typical Output IP3
♦
+18.4dBm Typical Output 1dB Compression Point
♦
1700MHz to 2200MHz RF Frequency Range
♦
700MHz to 1200MHz RF Frequency Range
(MAX2058)
♦
10.9dB Typical Small-Signal Gain
♦
Includes Two Independent 5-Bit Digital Attenuator
Stages, Yielding 56dB of Total Gain-Control
Range with 1dB Steps
♦
3-Wire SPI™/MICROWIRE™ Compatible
♦
Integrated Loopback Mixer for Tx/Rx Self-
Diagnostics
♦
+5V Single-Supply Operation
♦
External Current-Setting Resistors for Scalable
Device Power
♦
Lead-Free Package Available
Features
MAX2059
Applications
DCS 1800/PCS 1900 EDGE Base-Station
Transmitters and Power Amplifiers
cdmaOne™ and cdma2000 Base-Station
Transmitters and Power Amplifiers
WCDMA, TD-SCDMA, and Other 3G Base-Station
Transmitters and Power Amplifiers
Transmitter Gain Control
Receiver Gain Control
Broadband Systems
Automatic Test Equipment
Digital and Spread-Spectrum Communication
Systems
Microwave Terrestrial Links
Ordering Information
PART
MAX2059ETL
MAX2059ETL-T
MAX2059ETL+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
40 Thin QFN-EP*
(6mm x 6mm)
40 Thin QFN-EP*
(6mm x 6mm)
40 Thin QFN-EP*
(6mm x 6mm)
40 Thin QFN-EP*
(6mm x 6mm)
PKG
CODE
T4066-3
T4066-3
T4066-3
T4066-3
MAX2059ETL+T -40°C to +85°C
*EP
= Exposed paddle.
+Denotes
lead-free package.
T
= Tape-and-reel.
Pin Configuration/Functional Diagram appears at end of data
sheet.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
cdmaOne is a trademark of CDMA Development Group.
SPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
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.
1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
MAX2059
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ...........................................................-0.3V to +5.5V
RSET1, RSET2......................................................+1.2V to +4.0V
LBBIAS .......................................................(V
CC
- 1.5V) to +5.5V
LB_EN, DATA,
CS,
CLK .............................-0.3V to (V
CC
+ 0.3V)
ATTEN_INA, ATTEN_INB, ATTEN_OUTA, ATTEN_OUTB
Input Power .................................................................+24dBm
AMPIN, Differential LO Input Power ...............................+12dBm
Continuous Power Dissipation (T
A
= +70°C)
40-Pin TQFN (derated 26.3mW/°C above +70°C) ......2100mW
Operating Temperature Range (Note A) .............-40°C to +85°C
Junction Temperature ......................................................+150°C
θ
JC
....................................................................................10°C/W
θ
JA
....................................................................................38°C/W
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note A:
T
C
is the temperature on the exposed paddle of the package.
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.
DC ELECTRICAL CHARACTERISTICS
(MAX2059
Typical Application Circuit,
V
CC
= +4.75V to +5.25V, R1 = 1.2kΩ, R2 = 2kΩ, R3 = 2kΩ, T
C
= -40°C to +85°C. Typical val-
ues are at V
CC
= +5.0V and T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Supply Voltage
Total Supply Current
SYMBOL
V
CC
I
CC
CONDITIONS
Reference to V
CC
, VCCLB, VCCLOGIC,
VCCBIAS1, VCCBIAS2, VCCAMP
LB mixer disabled (LB_EN = 1)
LB mixer enabled (LB_EN = 0)
2.4
0.8
0.01
0.01
MIN
4.75
TYP
5.0
189
217
MAX
5.25
241
275
UNITS
V
mA
LOGIC INPUTS (DATA,
CS,
CLK, LB_EN)
Input High Voltage
Input Low Voltage
Input Current with Logic-High
Input Current with Logic-Low
V
IH
V
IL
I
IH
I
IL
V
V
µA
µA
AC ELECTRICAL CHARACTERISTICS
(MAX2059
Typical Application Circuit,
V
CC
= +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz
≤
f
RF
≤
2200MHz,
40MHz
≤
f
LO
≤
100MHz, T
C
= -40°C to +85°C. Typical values are at V
CC
= 5.0V, P
IN
= 0dBm, f
RF
= 1850MHz, P
LO
= -6dBm, f
LO
=
95MHz, f
LBOUT
= f
RF
- f
LO
, and T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
RF Frequency (Note 2)
Small-Signal Gain
Gain Variation vs. Temperature
Output Power
Output Power Flatness
Attenuation Range
Output 3rd-Order Intercept Point
OIP3
Two tones: f
RF1
= 1850MHz, f
RF2
=
1851MHz, P
OUT1
= P
OUT2
= +5dBm
P
OUT
A
V
SYMBOL
MAX2058
MAX2059
f
RF
= 1850MHz, T
C
= +25°C
All attenuation
settings
T
C
= -40°C to +25°C
T
C
= +25°C to +85°C
8.0
1800MHz to 2000MHz
2000MHz to 2200MHz
CONDITIONS
MIN
700
1700
8.0
10.9
-0.024
-0.032
10.9
-0.77
-2
56
31.8
13.3
TYP
MAX
1200
2200
13.3
UNITS
MHz
dB
dB/°C
dBm
dB
dB
dBm
P
IN
= 0dBm, f
RF
= 1850MHz, T
C
= +25°C
P
IN
= 0dBm
2
_______________________________________________________________________________________
1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2059
Typical Application Circuit,
V
CC
= +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz
≤
f
RF
≤
2200MHz,
40MHz
≤
f
LO
≤
100MHz, T
C
= -40°C to +85°C. Typical values are at V
CC
= 5.0V, P
IN
= 0dBm, f
RF
= 1850MHz, P
LO
= -6dBm, f
LO
=
95MHz, f
LBOUT
= f
RF
- f
LO
, and T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Output -1dB Compression Point
RMS Error Vector Magnitude
Spurious Emissions in 30kHz
Bandwidth
Noise Figure
Input Return Loss
Output Return Loss
5-BIT DIGITAL ATTENUATORS
Insertion Loss
Attenuator measured separately Z
S
= Z
L
=
50Ω
IIP3
Attenuator measured separately Z
S
= Z
L
=
50Ω, two tones: f
RF1
= 1850MHz, f
RF2
=
1851MHz, P
IN1
= P
IN2
= +5dBm
(Note 5)
1800MHz to 2000MHz
2000MHz to 2200MHz
1800MHz to 2200MHz,
T
C
= -40°C to +25°C
1800MHz to 2200MHz,
T
C
= +25°C to +85°C
1800MHz to 2000MHz, all states
represented. For steps 0–23dB, accuracy is
significantly improved. See
Typical
Operating Characterisitcs.
1800MHz to 2000MHz, all states
represented. For steps 0–23dB, accuracy is
significantly improved. See
Typical
Operating Characterisitcs.
No RF input, attenuator A stepped from 0 to
2dB, 7dB to 9dB, 15dB to 17dB, 0 to 31dB,
31dB to 0dB, with attenuator B at 0dB;
attenuator B stepped from 0 to 2dB, 7dB to
9dB, 15dB to 17dB, 0 to 31dB, 31dB to
0dB, with attenuator A at 0dB (Note 6)
5
dB
NF
50Ω source, minimum attenuation setting
50Ω load, minimum attenuation setting
SYMBOL
OP
1dB
EVM
(Note 3)
P
OUT
= +12dBm, EDGE modulation
200kHz offset
P
OUT
= +12dBm,
EDGE modulation
(Note 4)
400kHz offset
600kHz offset
1.2MHz offset
CONDITIONS
MIN
TYP
18.4
0.5
-39.1
-72.5
-83.1
-85.7
8.1
19
24
dB
dB
dB
dBc
MAX
UNITS
dBm
%
MAX2059
Input 3rd-Order Intercept Point
Control Range
Attenuation Step Size Variation
vs. Frequency
40
28
±0.17
±0.29
±0.011
dBm
dB
dB
Attenuation Variation vs.
Temperature
Step Size
dB/°C
±0.023
1
+0.53
-0.97
dB
Relative Step Accuracy
dB
Absolute Step Accuracy
-3.5
+0.3
dB
Spurious Emissions in 300kHz
Bandwidth
-89
dBm
_______________________________________________________________________________________
3
1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
MAX2059
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2059
Typical Application Circuit,
V
CC
= +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz
≤
f
RF
≤
2200MHz,
40MHz
≤
f
LO
≤
100MHz, T
C
= -40°C to +85°C. Typical values are at V
CC
= 5.0V, P
IN
= 0dBm, f
RF
= 1850MHz, P
LO
= -6dBm, f
LO
=
95MHz, f
LBOUT
= f
RF
- f
LO
, and T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Switching Speed
LOOPBACK MIXER
LO Frequency
LO Input Power
Output Power
Gain Accuracy
Output 3rd-Order Intercept Point
Output Noise Floor
ON/OFF Switching Time
LBOUT to ATTEN_OUTB Isolation
ATTEN_OUTB to LBOUT Isolation
Output Return Loss
LO Port Return Loss
SERIAL PERIPHERAL INTERFACE (SPI)
Maximum Clock Speed
Data to Clock Setup Time
Data to Clock Hold Time
Clock to
CS
Setup Time
CS
Positive Pulse Width
CS
Negative Pulse Width
Clock Pulse Width
t
CS
t
CH
t
ES
t
EW
t
EWN
t
CW
38
1
9
4
18
24
13
MHz
ns
ns
ns
ns
ns
ns
OIP3
f
LO
P
LO
P
IN
= +5dBm, f
RF
= 1850MHz, T
C
= +25°C
(Note 7)
P
IN
= +5dBm, T
C
= -40°C to +85°C
1800MHz to 2000MHz
2000MHz to 2200MHz
-15.4
(Note 2)
40
-6
-12.6
±2.2
±2.2
6.2
-137
0.12
0.12
55
50
20
13
28
100
0
-9.6
MHz
dBm
dBm
dB
dBm
dBc/Hz
µs
dB
dB
dB
dB
SYMBOL
CONDITIONS
From chip select transitioning high to the
output settling to within 1dB of steady state
output
MIN
TYP
0.3
MAX
UNITS
µs
Two tones: f
RF1
= 1850MHz, f
RF2
= 1850.2MHz,
P
IN1
= P
IN2
= +2dBm, T
C
= +25°C
P
IN
= +5dBm
LB_EN enable time
LB_EN disable time
Mixer enabled, attenuators A and B both set
to 31dB, P
IN
= +5dBm
Mixer disabled, P
IN
= 0dBm
Mixer enabled, 50Ω load
Mixer disabled, 50Ω load
50Ω source
Note 1:
All limits include external component losses. Output measurements taken at RFOUT or LBOUT ports of the
Typical
Application Circuit.
Note 2:
Operating outside this range is possible, but with degraded performance of some parameters.
Note 3:
Compression point characterized. It is advisable not to continuously operate the VGA RF input above +15dBm.
Note 4:
Input RF source contribution to spurious emissions (Agilent ESG 4435B, PSA E4443A): 200kHz = -39.2dBc,
400kHz = -73.5dBc, 600kHz = -83.2dBc, 1.2MHz = -85.7dBc
Note 5:
See the
Applications Information
section regarding effective attenuation range.
Note 6:
No SPI clock input applied.
Note 7:
Guaranteed by design and characterization.
4
_______________________________________________________________________________________
1700MHz to 2200MHz High-Linearity,
SPI-Controlled DVGA with Integrated Loopback Mixer
MAX2059
Typical Operating Characteristics
(MAX2059
Typical Application Circuit,
V
CC
= +4.75V to +5.25V, digital attenuators set for maximum gain, 1700MHz
≤
f
RF
≤
2200MHz,
40MHz
≤
f
LO
≤
100MHz, T
C
= -40°C to +85°C. Typical values are at V
CC
= 5.0V, P
IN
= 0dBm, f
RF
= 1850MHz, f
LO
= 95MHz, f
LBOUT
=
f
RF
- f
LO
, and T
C
= +25°C, unless otherwise noted.)
GAIN vs. RF FREQUENCY*
(MAXIMUM GAIN)
MAX12059 toc01
GAIN vs. RF FREQUENCY*
(MAXIMUM GAIN)
MAX2059 toc02
GAIN vs. RF FREQUENCY*
ADJUSTING ATTEN A
MAX2059 toc03
14
T
C
= -40°C
12
10
GAIN (dB)
8
6
4
2
0
14
V
CC
= 5.25V
12
10
GAIN (dB)
15
5
GAIN (dB)
V
CC
= 5.0V
V
CC
= 4.75V
T
C
= +5°C
T
C
= +25°C
T
C
= +85°C
8
6
4
2
0
-5
-15
-25
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
ATTEN A ABS ACCURACY vs. RF FREQUENCY
MAX2059 toc04
ATTEN A REL ACCURACY vs. RF FREQUENCY
MAX2059 toc05
GAIN vs. RF FREQUENCY*
ADJUSTING ATTEN B
MAX2059 toc06
3
2
1
0
ERROR (dB)
1.0
0.5
0
ERROR (dB)
15
5
GAIN (dB)
16dB ATTEN
-1.5
STATES 24–31dB
ATTEN
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
24dB ATTEN
-25
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
-1
-2
-3
-4
-5
-6
-0.5
-1.0
-5
-15
-2.0
ATTEN B ABS ACCURACY vs. RF FREQUENCY
MAX2059 toc07
ATTEN B REL ACCURACY vs. RF FREQUENCY
MAX2059 toc08
OUTPUT IP3 vs. RF FREQUENCY*
34
33
OUTPUT IP3 (dBm)
32
31
30
29
28
27
26
T
C
= +85°C
1700
1800
1900 2000 2100
RF FREQUENCY (MHz)
2200
2300
T
C
= +25°C
T
C
= +5°C
T
C
= -40°C
MAX2059 toc09
3
2
1
0
ERROR (dB)
-1
-2
-3
-4
1.0
0.5
0
ERROR (dB)
-0.5
-1.0
-1.5
24dB ATTEN
35
-5
-6
STATES 24–31dB
ATTEN
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
-2.0
1500 1600 1700 1800 1900 2000 2100 2200 2300
RF FREQUENCY (MHz)
25
*Off-chip
tuning can improve performance for applications beyond 2200MHz. Contact factory for details.
_______________________________________________________________________________________
5
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