MAX2389EGC [ROCHESTER]
TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC12, 3 X 3 MM, 0.90 MM HEIGHT, QFN-12;
| 型号： | MAX2389EGC |
| 厂家： | 
Rochester Electronics |
| 描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC12, 3 X 3 MM, 0.90 MM HEIGHT, QFN-12 蜂窝 |
| 文件： | 总14页 (文件大小：938K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1834; Rev 1; 5/01
W-CDMA LNA/Mixer ICs
General Description
Features
The MAX2387/MAX2388/MAX2389 low-noise amplifier
(LNA), downconverter mixers designed for W-CDMA
applications, are ideal for ARIB (Japan) and ETSI-
UMTS (Europe) based systems. The MAX2387/
MAX2388/MAX2389 feature ultra-low current consump-
tion and exceptionally low noise figures in ultra-small
packages.
ꢀ Ultra-Low Current Consumption: 10.7mA
(MAX2387), 9.9mA (MAX2388), and 7.9mA
(MAX2389)
ꢀ +2.7V to +3.3V Single-Supply Operation
ꢀ Mixer NF: 7dB SSB
The MAX2387/MAX2388 include an LNA, a downcon-
verter mixer, and a local-oscillator (LO) buffer. The
MAX2389 has an LNA and mixer, but minimizes current
consumption by omitting the LO buffer. For all devices,
the LNA and downconverter mixers are optimized for
the 2110MHz to 2170MHz band. All devices feature a
high-gain mode and a low-gain mode of LNA operation.
The MAX2387 has a 32dB gain step, and the
MAX2388/MAX2389 have an 18dB gain step. All ICs
include a shutdown mode, powering down the IC dur-
ing the front-end receiver’s idle periods.
ꢀ Cascaded Noise Figure: 2.3dB
ꢀ LNA Low-Gain Mode: 32dB Gain Step (MAX2387)
or 18dB Gain Step (MAX2388/MAX2389)
ꢀ Mixer IIP3: 6dBm
ꢀ < 1µA Shutdown Current
✕
ꢀ Ultra-Small (3mm 3mm) 12-Pin QFN Package
The mixer 3rd-order nonlinearity performance is set
using an external biasing resistor. For the MAX2387/
MAX2388, mixer performance is optimized for a
-10dBm typical drive at the LO buffer input port. The
MAX2389 mixer performance is optimized for a
-4dBm typical drive at the LO input port. The LO port
for all versions is configurable for either single-ended or
differential operation.
Ordering Information
PART
TEMP. RANGE
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
PIN-PACKAGE
12 QFN
MAX2387EGC
MAX2388EGC
MAX2389EGC
12 QFN
These devices operate from a +2.7V to +3.3V single sup-
12 QFN
✕
ply and are available in ultra-small (3mm 3mm) 12-pin
leadless packages (QFN).
________________________Applications
Japanese 3rd-Generation W-CDMA Cellular
Phones
Dual-Mode W-CDMA/GSM Cellular Phones
Pin Descriptions/Functional Diagrams
BIAS
12
GND LNA_IN
BIAS
12
GND LNA_IN
TOP VIEW
LNA_OUT
MAX2387/MAX2388
MAX2389
11
10
11
10
1
LNA_OUT
1
9
V
CC
9
V
CC
BIAS
BIAS
GAIN
2
3
GAIN
2
3
8
7
IF+
IF-
8
7
IF+
IF-
MIX_IN
MIX_IN
4
5
6
4
5
6
LO+
LO-
LO+
LO-
SHDN
SHDN
________________________________________________________________ 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.
W-CDMA LNA/Mixer ICs
ABSOLUTE MAXIMUM RATINGS
CC
SHDN, GAIN to GND..................................-0.3V to (V
AC Signals ....................................................................+1V peak
Digital Input Current ......................................................... 10ꢀA
V
to GND...........................................................-0.3V to +4.3V
Operating Teꢀperature Range ...........................-40°C to +85°C
Junction Teꢀperature......................................................+150°C
Storage Teꢀperature Range.............................-65°C to +150°C
Soldering Teꢀperature (10s)...........................................+300°C
+ 0.3V)
CC
Continuous Power Dissipation (T = +70°C)
A
12-Pin QFN (derate 11.9ꢀW/°C above T = +70°C)...952ꢀW
A
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
(V
= +2.7V to +3.3V, SHDN = high, R
= +25°C, unless otherwise noted.)
= 24k , no input AC signals, T = -40°C to +85°C. Typical values are at V = +2.7V,
CC
CC
BIAS
A
T
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
10.7
9.9
MAX
UNITS
MAX2387
MAX2388
MAX2389
MAX2387
MAX2388
MAX2389
12.4
11.7
9.3
High-gain ꢀode
7.9
Operating Supply Current
I
ꢀA
CC
CC
7.2
8.7
Low-gain ꢀode
6.7
8.1
4.7
5.7
Shutdown Supply Current
Digital Input Logic High
Digital Input Logic Low
Input Logic High Current
Input Logic Low Current
I
SHDN = low
0.2
1.0
µA
V
V
2.0
-20
IH
V
0.6
1
V
IL
I
V
V
= V
= V
µA
µA
IH
IN
IN
IH
IL
I
IL
AC ELECTRICAL CHARACTERISTICS
(MAX238_ EV kit, V
= 2.7V, SHDN = high, f
= f
= 2140MHz, f = 2330MHz (f = 190MHz). Mixer, LNA, and LO input
CC
RF_IN
LNA_IN LO IF
ports are driven with 50 sources. R
= 24k
1ꢁ, P
= -10dBꢀ (MAX2387/MAX2388), P
= -4dBꢀ (MAX2389), P
=
RF
BIAS
LO
LO
-30dBꢀ. Typical values are at V
= +2.7V, T = +25°C, unless otherwise noted.)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = HIGH)
RF Frequency Range (Note 1)
f
2110
13.5
12.9
2170
16.5
17.0
MHz
dB
RF
T
T
= +25°C
15
A
Gain
G
LNA
= -40°C to +85°C (Note 2)
A
2
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, V
ports are driven with 50 sources. R
= 2.7V, SHDN = high, f
= f
1ꢁ, P
= 2140MHz, f = 2330MHz (f = 190MHz). Mixer, LNA, and LO input
CC
RF_IN
LNA_IN LO IF
= 24k
= -10dBꢀ (MAX2387/MAX2388), P
= -4dBꢀ (MAX2389), P
=
RF
BIAS
LO
LO
-30dBꢀ. Typical values are at V
= +2.7V, T = +25°C, unless otherwise noted.)
CC
A
PARAMETER
Noise Figure (Notes 1, 3)
rd
SYMBOL
NF
CONDITIONS
MIN
TYP
MAX
UNITS
T
T
= +25°C
1.7
2.2
dB
LNA
A
3
-Order Input Intercept Point
IIP3
= -40°C to +85°C (Note 2)
4.2
-13
dBꢀ
dBꢀ
LNA
A
(Note 4)
Input -1dB Coꢀpression Point
(Note 1)
IP
-19
-1dB
LNA PERFORMANCE: LOW-GAIN MODE (GAIN = LOW)
MAX2387
-18.5
-4.7
-16.5
-2.8
-14.5
-0.9
-14
T
A
= +25°C
MAX2388/
MAX2389
Gain
G
dB
LNA
MAX2387
-10.5
5.4
T
A
= -40°C to +85°C
MAX2388/
MAX2389
(Note 2)
-0.7
21.3
8.4
MAX2387
19.2
6.5
1
Noise Figure (Notes 1, 3)
rd
NF
dB
LNA
MAX2388/
MAX2389
MAX2387
3
-Order Input Intercept Point
IIP3
dBꢀ
dBꢀ
LNA
MAX2388/
MAX2389
(Note 5)
3.4
-9.9
-7.7
MAX2387
Input -1dB Coꢀpression Point
IP
-1dB
MAX2388/
MAX2389
MIXER PERFORMANCE (GAIN = HIGH)
RF Frequency Range (Note 1)
LO Frequency Range (Note 1)
IF Frequency Range (Note 1)
f
2110
2250
150
8.5
2170
2600
400
11.5
12.5
8.8
MHz
MHz
MHz
RF
LO
f
f
IF
T
T
= +25°C
10
A
Power Conversion Gain
G
dB
MXR
= -40°C to +85°C (Note 2)
7.5
A
MAX2387
MAX2388
MAX2389
7.2
6.8
7.3
Noise Figure (SSB) (Note 1)
NF
T
A
= +25°C
8.2
dB
MXR
9.5
_______________________________________________________________________________________
3
W-CDMA LNA/Mixer ICs
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX238_ EV kit, V
ports are driven with 50 sources. R
= 2.7V, SHDN = high, f
= f
1ꢁ, P
= 2140MHz, f = 2330MHz (f = 190MHz). Mixer, LNA, and LO input
CC
RF_IN
LNA_IN LO IF
= 24k
= -10dBꢀ (MAX2387/MAX2388), P
= -4dBꢀ (MAX2389), P
=
RF
BIAS
LO
LO
-30dBꢀ. Typical values are at V
= +2.7V, T = +25°C, unless otherwise noted.)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
6
MAX
UNITS
MAX2387
MAX2388
MAX2389
MAX2387
MAX2388
MAX2389
rd
3
-Order Input Intercept Point
(Notes 1, 3)
IIP3
6
dBꢀ
MXR
5
-13.9
-16.3
-15.4
-10
-10.5
-10.5
Input -1dB Coꢀpression Point
(Note 1)
IP
T
A
= -40°C to +85°C
dBꢀ
-1dB,MXR
MIXER PERFORMANCE (GAIN = LOW)
T
T
= +25 C
7.5
6.5
9.0
10.5
12.0
8.4
A
Power Conversion Gain (Note 1)
G
dB
dB
MXR
= -40°C to +85°C
A
MAX2387
MAX2388
MAX2389
MAX2387
MAX2388
MAX2389
MAX2387
MAX2388
MAX2389
6.9
6.1
Noise Figure (SSB) (Note 1)
NF
T
A
T
A
T
A
= +25°C
7.4
MXR
6.6
8.8
0.7
rd
3
-Order Input Intercept Point
IIP3
= +25°C
dBꢀ
dBꢀ
0.2
MXR
(Note 4)
1.3
-15.0
-18.2
-17.8
-10.7
-11.3
-11.9
Input -1dB Coꢀpression Point
(Note 1)
IP
= -40°C to +85°C
-1dB,MXR
Note 1: Guaranteed by design and characterization.
Note 2: MIN guaranteed by production test, MAX guaranteed by design and characterization.
Note 3: Includes input ꢀatching circuit loss.
Note 4: f
Note 5: f
= 2140MHz, f
= 2140MHz, f
= 2141MHz, P = -30dBꢀ per tone.
= 2141MHz, P = -25dBꢀ per tone.
IN
IN1
IN1
IN2
IN2
IN
4
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
Typical Operating Characteristics
(T = +25 C, V
A
= +2.7V, unless otherwise noted.)
CC
MAX2387
SUPPLY CURRENT vs. TEMPERATURE
MAX2387
LNA GAIN vs. TEMPERATURE
MAX2387
LNA IIP3 vs. TEMPERATURE
16
14
12
10
8
20
15
10
5
10
8
V
= +3.3V
= +4.3V
V
= +2.7V
V
CC
CC
CC
HIGH-GAIN MODE
LOW-GAIN MODE
HIGH-GAIN
LOW-GAIN
HIGH-GAIN
6
HIGH-GAIN MODE
4
2
V
= +4.3V
V
= +2.7V
CC
CC
0
0
LOW-GAIN
LOW-GAIN
-2
-4
-6
-8
-10
-5
6
-10
-15
-20
V
= +3.3V
CC
LOW-GAIN MODE
HIGH-GAIN
4
2
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
MAX2387
MIXER CONVERSION GAIN
vs. LO INPUT POWER
MAX2387
MAX2387
MIXER INPUT -1dB COMPRESSION POINT
vs. TEMPERATURE
MIXER IIP2 AND IIP3 vs. TEMPERATURE
30
25
20
15
10
5
12
10
8
-6
-8
IIP2: HIGH-GAIN
MODE, SINGLE-
ENDED LO
IIP2: HIGH-GAIN
MODE, DIFFERENTIAL
LO
LOW-GAIN MODE HIGH-GAIN MODE
-10
-12
-14
-16
6
4
0
IIP3: HIGH-GAIN
MODE
2
-5
-10
IIP3: LOW-GAIN
MODE
0
-40
-15
10
35
60
85
-13
-12
-11
-10
-9
-8
-7
-40
-15
10
35
60
85
TEMPERATURE ( C)
LO INPUT LEVEL (dBm)
TEMPERATURE ( C)
MAX2387
MIXER LO-IF AND LO-RF ISOLATION
vs. LO FREQUENCY
MAX2387
MIXER NOISE FIGURE vs. LO POWER
MAX2387
LNA NOISE FIGURE vs. FREQUENCY
8
7
6
5
4
40
35
30
25
20
15
10
5
25
20
15
10
5
HIGH-GAIN MODE
LO-RF: LOW-GAIN
LO-RF: HIGH-GAIN
MODE
MODE
LOW-GAIN MODE
HIGH-GAIN MODE
LO-IF: LOW-GAIN
MODE
LOW-GAIN MODE
LO-IF: HIGH-GAIN
MODE
V
CC
= +2.7V
LO = -10dBm
0
0
-13
-12
-11
-10
-9
-8
-7
2300 2310 2320 2330 2340 2350 2360
FREQUENCY (MHz)
2110 2120 2130 2140 2150 2160 2170
FREQUENCY (MHz)
LO POWER (dB)
_______________________________________________________________________________________
5
W-CDMA LNA/Mixer ICs
Typical Operating Characteristics (continued)
(T = +25 C, V
A
= +2.7V, unless otherwise noted.)
CC
MAX2388
SUPPLY CURRENT vs. TEMPERATURE
MAX2388
LNA GAIN vs. TEMPERATURE
MAX2388
LNA IIP3 vs. TEMPERATURE
16
14
12
10
8
10
8
20
15
10
5
V
= +3.3V
V
V
= +2.7V
= +4.3V
CC
HIGH-GAIN MODE
LOW-GAIN MODE
CC
CC
6
HIGH-GAIN
HIGH-GAIN
HIGH-GAIN
4
HIGH-GAIN MODE
LOW-GAIN MODE
2
V
= +4.3V
0
CC
LOW-GAIN
-2
-4
-6
-8
-10
6
0
V
= +2.7V
= +3.3V
V
CC
CC
4
LOW-GAIN
LOW-GAIN
2
-5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
MAX2388
MIXER CONVERSION GAIN
vs. LO INPUT POWER
MAX2388
MIXER INPUT -1dB COMPRESSION POINT
vs. TEMPERATURE
MAX2388
MIXER IIP2 AND IIP3 vs. TEMPERATURE
12
10
8
30
25
20
15
10
5
-6
-8
IIP2: HIGH-GAIN
MODE,
IIP2: HIGH-GAIN
SINGLE-ENDED LO
MODE, DIFFERENTIAL LO
LOW-GAIN MODE HIGH-GAIN MODE
-10
-12
-14
-16
6
4
0
IIP3: HIGH-GAIN
MODE
2
-5
-10
IIP3: LOW-GAIN
MODE
0
-13
-12
-11
-10
-9
-8
-7
-40
-15
10
35
60
85
-40
-15
10
35
60
85
LO INPUT LEVEL (dBm)
TEMPERATURE ( C)
TEMPERATURE ( C)
MAX2388
MIXER LO-IF AND LO-RF ISOLATION
vs. LO FREQUENCY
MAX2388
MIXER NOISE FIGURE vs. LO POWER
MAX2388
LNA NOISE FIGURE vs. FREQUENCY
40
35
30
25
20
15
10
5
10
8
8
7
6
5
4
HIGH-GAIN MODE
LO-RF: HIGH-GAIN
MODE
LO-RF: LOW-GAIN
MODE
LOW-GAIN MODE
6
LO-IF: LOW-GAIN
MODE
LOW-GAIN MODE
4
HIGH-GAIN MODE
2
LO-IF: HIGH-GAIN
MODE
V
= +2.7V
CC
LO = -10dBm
0
0
2110 2120 2130 2140 2150 2160 2170
FREQUENCY (MHz)
2300 2310 2320 2330 2340 2350 2360
FREQUENCY (MHz)
-13
-12
-11
-10
-9
-8
-7
LO POWER (dB)
6
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
Typical Operating Characteristics (continued)
(T = +25 C, V
A
= +2.7V, unless otherwise noted.)
CC
MAX2389
SUPPLY CURRENT vs. TEMPERATURE
MAX2389
LNA GAIN vs. TEMPERATURE
MAX2389
LNA IIP3 vs. TEMPERATURE
10
8
12
10
20
15
10
5
V
= +3.3V
V
= +4.3V
CC
CC
HIGH-GAIN
HIGH-GAIN
HIGH-GAIN MODE
LOW-GAIN MODE
6
4
8
6
4
HIGH-GAIN MODE
LOW-GAIN MODE
2
V
= +4.3V
CC
V
= +2.7V
CC
0
LOW-GAIN
HIGH-GAIN
-2
-4
-6
-8
-10
V
= +2.7V
V
= +3.3V
CC
CC
0
LOW-GAIN
LOW-GAIN
2
0
-5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
MAX2389
MAX2389
MIXER CONVERSION GAIN
vs. LO INPUT POWER
MIXER INPUT -1dB COMPRESSION POINT
vs. TEMPERATURE
MAX2389
MIXER IIP2 AND IIP3 vs. TEMPERATURE
30
25
20
15
10
5
-6
-8
12
10
8
IIP2: HIGH-GAIN
-10
-12
-14
-16
LOW-GAIN MODE HIGH-GAIN MODE
IIP2: HIGH-GAIN
MODE,
MODE,
6
DIFFERENTIAL LO
SINGLE-ENDED LO
4
0
2
IIP3: HIGH-GAIN
MODE
-5
-10
IIP3: LOW-GAIN
MODE
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-13
-12
-11
-10
-9
-8
-7
TEMPERATURE ( C)
TEMPERATURE ( C)
LO INPUT LEVEL (dBm)
MAX2389
MIXER LO-IF AND LO-RF ISOLATION
vs. LO FREQUENCY
MAX2389
MIXER NOISE FIGURE vs. LO POWER
MAX2389
LNA NOISE FIGURE vs. FREQUENCY
9
8
7
6
5
4
10
8
50
45
40
35
30
25
20
15
10
LO-RF: HIGH-GAIN
LOW-GAIN MODE
HIGH-GAIN MODE
LO-RF: LOW-GAIN
MODE
MODE
6
LO-IF: LOW-GAIN
MODE
4
HIGH-GAIN MODE
LOW-GAIN MODE
LO-IF: HIGH-GAIN
MODE
2
V
= +2.7V
CC
LO = -4dBm
0
-7
-6
-5
-4
-3
-2
-1
2110 2120 2130 2140 2150 2160 2170
FREQUENCY (MHz)
2300 2310 2320 2330 2340 2350 2360
FREQUENCY (MHz)
LO POWER (dB)
_______________________________________________________________________________________
7
W-CDMA LNA/Mixer ICs
Pin Description
PIN
1
NAME
LNA_OUT
GAIN
FUNCTION
RF Output Port for LNA. Requires external ꢀatching.
2
LNA/Mixer Gain Control Input
3
MIX_IN
RF Input Port for Mixer. Internally ꢀatched to 50 .
Shutdown Input. Drive low to enable shutdown ꢀode. Drive high or connect to V
operation.
for norꢀal
CC
4
5
6
SHDN
LO+
LO-
Noninverting LO Input for LO Buffer (MAX2387/MAX2388) or Mixer (MAX2389). Differential input
iꢀpedance is 200 . AC-couple to GND when the LO is driven single-endedly.
Inverting LO Input for LO Buffer (MAX2387/MAX2388) or Mixer (MAX2389). Differential input
iꢀpedance is 200
.
7
8
IF-
Inverting Mixer’s IF Open-Collector Output
Noninverting Mixer’s IF Open-Collector Output
Supply Voltage (+2.7V to +3.3V). Capacitively bypass to GND near the IC.
RF Input Port for LNA. Requires external ꢀatching.
Ground
IF+
9
V
CC
10
11
12
LNA_IN
GND
BIAS
LNA/Mixer Bias Pin. For noꢀinal bias, connect 24k
1ꢁ resistor to GND.
Downconverter Mixer
Detailed Description
The receive ꢀixer is a wideband, single-balanced
design with exceptional noise figure and linearity. The
LO input frequency range is 2330MHz to 2360MHz and
the RF input frequency range is 2110MHz to 2170MHz.
The ꢀixer is internally ꢀatched to 50 , thus eliꢀinating
any external ꢀatching coꢀponents.
The MAX2387/MAX2388/MAX2389 include an LNA
and downconverter ꢀixer. These devices feature a
shutdown ꢀode to power down the IC during the front-
end receiver’s idle periods. Each IC operates froꢀ a
+2.7V to +3.3V single supply and is housed in a 12-pin
✕
ultra-sꢀall QFN (3ꢀꢀ 3ꢀꢀ) leadless package.
LO Input Buffers
The MAX2387/MAX2388 feature open-collector LO
buffers to increase isolation between the LO and the
rest of the systeꢀ. The MAX2389 offers a lower current
consuꢀption for applications that do not require an LO
buffer.
The MAX2387/MAX2388/MAX2389 are fabricated using
an advanced high-frequency silicon gerꢀaniuꢀ
process. The LNA and ꢀixer NF and IIP3 have been
optiꢀized to provide excellent RF perforꢀance in the
2110MHz to 2170MHz band, while drawing ꢀiniꢀal
current.
For the MAX2387/MAX2388, the ꢀixer’s perforꢀance is
optiꢀized for a -10dBꢀ typical drive at the LO buffer
input port. The MAX2389’s ꢀixer perforꢀance is opti-
ꢀized for a -4dBꢀ typical drive at the LO input port.
The LO port for all versions can be driven either single-
ended or differentially.
RF Inputs
The MIX_IN input is typically connected to the LNA out-
put through an off-chip filter providing iꢀage rejection
and out-of-band interferers filtering. The LNA input and
output require an external ꢀatching network to 50 .
Note that the ꢀixer input is internally ꢀatched to 50 .
See Figure 1, Typical Application Circuits for 2.14GHz.
LNA High/Low-Gain Mode
These devices offer two ꢀodes of operation for the LNA:
high-gain ꢀode and low-gain ꢀode, selectable with a
GAIN select pin. The MAX2387 has a gain of 15dB in
high-gain ꢀode and -16.6dB in low-gain ꢀode. The
MAX2388/MAX2389 have a gain of 15dB in high-gain
ꢀode and -2.8dB in low-gain ꢀode. Matching LNA in
high-gain ꢀode will ensure ꢀatching in low-gain ꢀode.
LO Inputs
The LO+ and LO- pins are internally terꢀinated with
100 resistors. AC-couple the local-oscillator signal to
these pins. If a single-ended LO source is used, con-
nect LO+ to ground using an AC-coupling capacitor.
8
_______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
For the best gain and noise perforꢀance, use high-
quality coꢀponents for the LNA input ꢀatching circuit,
and solder the slug evenly to the board ground plane.
IF Output Port
The ꢀixer output appears on the differential IF+ and IF-
pins. These open-collector outputs require an external
inductor to V
for DC biasing. This port typically
CC
For the power supplies, a star topology works well to
isolate between different sections of the device. Each
requires a ꢀatching network for coupling to an external
IF filter. Figures 1 and 2 show exaꢀples of differential
and single-ended IF port connections.
V
node has its own path to a central V . Place
CC
CC
decoupling capacitors that provide low iꢀpedance at
the RF frequency of interest close to all V connec-
CC
Applications Information
tions. The central V
should have a large decoupling
CC
capacitor as well. (Use MAX2387/MAX2388/MAX2389
EV kit as an exaꢀple.)
Layout
A properly designed PC board is essential to any
RF/ꢀicrowave circuit. Keep RF signal lines as short as
possible to ꢀiniꢀize losses and radiation. Always use
controlled iꢀpedance lines on all high-frequency inputs
and outputs and use low-inductance connections to
ground on all GND pins. At the ꢀixer outputs, keep the
differential lines together and of the saꢀe length to
ensure signal balance.
Chip Information
TRANSISTOR COUNT: 208
Typical Application Circuits
2.2nH
24k
RX
GND
0.8pF
BIAS_SET
12
V
LNA_IN
CC
V
CC
11
10
TX
10 F
27nH
LNA_OUT
10k
0.8pF
6800pF
39pF
1
9
BIAS
IF
SAW
10nF
2.2nH
2
3
8
7
IF+
27nH 22pF
10k
GAIN
6800pF
IF-
20
Z
L
MAX2387
MAX2388
MAX2389
39pF
MIX_IN
RX BPF
V
CC
4
5
6
10nF
10k
LO+
LO-
82pF
82pF
SHDN
VCO
Figure 1. MAX2387/MAX2388/MAX2389 Differential IF Load; Single-Ended VCO
_______________________________________________________________________________________
9
W-CDMA LNA/Mixer ICs
2.2nH
24k
GND
RX
TX
0.8pF
BIAS
V
CC
LNA_IN
V
CC
12
11
10
10nF
6800pF
27nH
LNA_OUT
0.8pF
1
9
BIAS
39pF
IF
SAW
10nF
10k
GAIN
2.2nH
IF+
IF-
2
8
7
10k
27nH
22pF
6800pF
3
20
MAX2387
MAX2388
MAX2389
IF
OUT
MIX_IN
39pF
RX BPF
Z
L
V
CC
4
5
6
10nF
10k
LO+
LO-
82pF
82pF
SHDN
5.6nH
VCO
Figure 2. MAX2387/MAX2388/MAX2389 Differential IF Load; Differential VCO
10 ______________________________________________________________________________________
W-CDMA LNA/Mixer ICs
Table 1. LNA Input/Output S-Parameters (V
= +2.7V, High-Gain Mode)
CC
S-PARAMETERS
LNA (S11)
LNA (S21)
LNA (S12)
LNA (S22)
FREQUENCY
(MHZ)
MAGNITUDE PHASE MAGNITUDE
PHASE
MAGNITUDE
PHASE
MAGNITUDE PHASE
600
0.83287
0.81889
0.80364
0.78522
0.76638
0.74542
0.72614
0.70338
0.68291
0.66114
0.63958
0.61641
0.59303
0.56989
0.54509
0.52084
0.49554
0.47232
0.44892
0.42766
0.40833
0.39421
0.38321
0.37608
0.37573
0.38123
0.39208
0.40626
0.42512
0.44708
0.47302
0.49849
-41.655
-43.792
-46.486
-49.489
-53.118
-56.424
-59.477
-62.232
-64.933
-67.298
-69.782
-72.041
-74.571
-76.974
-79.651
-82.452
-85.891
-89.473
-93.529
-98.164
-103.42
-109.16
-115.32
-121.52
-128.03
-134.23
-139.73
-144.57
-148.8
5.2176
5.0791
4.9464
4.7767
4.6109
4.4363
4.2861
4.1209
4.0146
3.8951
3.7818
3.6761
3.5823
3.5198
3.4376
3.3691
3.2858
3.2544
3.195
146.82
145.33
143.26
141.09
138.2
0.020023
0.021153
0.022406
0.023962
0.025913
0.027189
0.028484
0.030015
0.030979
0.032236
0.033056
0.03398
79.051
78.88
0.92461
0.9171
-15.535
-16.23
700
800
78.412
79.181
78.989
79.621
79.666
80.686
81.41
0.91098
0.90108
0.8914
-17.187
-18.177
-19.536
-20.759
-22.045
-23.156
-24.46
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
135.68
133.2
0.87913
0.86957
0.85623
0.84504
0.83313
0.82095
0.80875
0.79497
0.78338
0.76891
0.75735
0.74365
0.73415
0.72262
0.71335
0.70474
0.70067
0.69795
0.69514
0.69504
0.69915
0.70504
0.71095
0.71819
0.72516
0.73416
0.73997
130.93
128.4
126.82
124.53
122.88
120.51
118.87
116.77
115.17
112.47
110.28
108.05
105.62
102.94
100.13
96.964
94.462
91.479
88.528
85.584
83.264
80.95
82.856
83.763
85.56
-25.525
-26.882
-28.147
-29.825
-31.503
-33.44
0.035009
0.036332
0.036887
0.038318
0.039355
0.040817
0.042049
0.043438
0.044844
0.046899
0.048389
0.049426
0.05079
86.377
88.572
89.686
91.409
93.409
94.973
97.086
98.58
-35.559
-38.175
-41.034
-44.165
-47.828
-51.733
-56.04
3.1347
3.06
100.14
101.7
2.9818
2.9149
2.821
103.31
104.62
106.39
108.22
110.43
113.29
115.29
118.09
119.23
120.99
-60.397
-64.899
-69.425
-73.798
-77.625
-81.166
-84.4
2.7086
2.5802
2.4696
2.3296
2.2157
2.0519
1.9382
1.8048
0.051657
0.053915
0.055483
0.05783
-152.13
-154.7
79.588
77.337
76.594
0.060614
0.065129
0.069104
-87.06
-89.168
-90.676
-156.57
Package Information
For the latest package outline inforꢀation, go to
www.maxim-ic.com/packages.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11
© 2001 Maxiꢀ Integrated Products
Printed USA
is a registered tradeꢀark of Maxiꢀ Integrated Products.
ENGL ISH • ? ? ? ? • ? ? ? • ? ? ?
WH AT 'S NEW
PR OD UC TS
SO LUTI ONS
D ES IG N
A PPNOTES
SU PPORT
B U Y
COM PA N Y
M EMB ERS
M A X 2 3 8 8
Pa rt Nu m ber T abl e
N o t e s :
1 . S e e t h e M A X 2 3 8 8 Q u i c k V i e w D a t a S h e e t f o r f u r t h e r i n f o r m a t i o n o n t h i s p r o d u c t f a m i l y o r d o w n l o a d t h e
M A X 2 3 8 8 f u l l d a t a s h e e t ( P D F , 1 9 2 k B ) .
2 . O t h e r o p t i o n s a n d l i n k s f o r p u r c h a s i n g p a r t s a r e l i s t e d a t : h t t p : / / w w w . m a x i m - i c . c o m / s a l e s .
3 . D i d n ' t F i n d W h a t Y o u N e e d ? A s k o u r a p p l i c a t i o n s e n g i n e e r s . E x p e r t a s s i s t a n c e i n f i n d i n g p a r t s , u s u a l l y w i t h i n
o n e b u s i n e s s d a y .
4 . P a r t n u m b e r s u f f i x e s : T o r T & R = t a p e a n d r e e l ; + = R o H S / l e a d - f r e e ; # = R o H S / l e a d - e x e m p t . M o r e : S e e
f u l l d a t a s h e e t o r P a r t N a m i n g C o n v e n t i o n s .
5 . * S o m e p a c k a g e s h a v e v a r i a t i o n s , l i s t e d o n t h e d r a w i n g . " P k g C o d e / V a r i a t i o n " t e l l s w h i c h v a r i a t i o n t h e
p r o d u c t u s e s .
P a r t N u m b e r
F r e e
S a m p l e
B u y
D i r e c t
T e m p
R o H S / L e a d - F r e e ?
M a t e r i a l s A n a l y s i s
P a c k a g e : T Y P E P I N S S I Z E
D R A W I N G C O D E / V A R *
M A X 2 3 8 8 E V K I T
R o H S / L e a d - F r e e : N o
M A X 2 3 8 8 E G C
Q F N ; 1 2 p i n ; 3 x 3 x 0 . 9 m m
D w g : 2 1 - 0 1 0 2 G ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : G 1 2 3 3 - 1 *
M A X 2 3 8 8 E G C - T
M A X 2 3 8 8 E G C +
M A X 2 3 8 8 E G C + T
M A X 2 3 8 8 E T C +
M A X 2 3 8 8 E T C + T
Q F N ; 1 2 p i n ; 3 x 3 x 0 . 9 m m
D w g : 2 1 - 0 1 0 2 G ( P D F )
U s e p k g c o d e / v a r i a t i o n : G 1 2 3 3 - 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : N o
M a t e r i a l s A n a l y s i s
Q F N ; 1 2 p i n ; 3 x 3 x 0 . 9 m m
D w g : 2 1 - 0 1 0 2 G ( P D F )
U s e p k g c o d e / v a r i a t i o n : G 1 2 3 3 + 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : Y e s
M a t e r i a l s A n a l y s i s
Q F N ; 1 2 p i n ; 3 x 3 x 0 . 9 m m
D w g : 2 1 - 0 1 0 2 G ( P D F )
U s e p k g c o d e / v a r i a t i o n : G 1 2 3 3 + 1 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : Y e s
M a t e r i a l s A n a l y s i s
T H I N Q F N ; 1 2 p i n ; 3 X 3 X 0 . 8 m m
D w g : 2 1 - 0 1 3 6 I ( P D F )
U s e p k g c o d e / v a r i a t i o n : T 1 2 3 3 + 3 *
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : Y e s
M a t e r i a l s A n a l y s i s
T H I N Q F N ; 1 2 p i n ; 3 X 3 X 0 . 8 m m
D w g : 2 1 - 0 1 3 6 I ( P D F )
- 4 0 C t o + 8 5 C R o H S / L e a d - F r e e : Y e s
M a t e r i a l s A n a l y s i s
U s e p k g c o d e / v a r i a t i o n : T 1 2 3 3 + 3 *
D i d n ' t F i n d W h a t Y o u N e e d ?
C O N T A C T U S : S E N D U S A N E M A I L
C o p y r i g h t 2 0 0 7 b y M a x i m I n t e g r a t e d P r o d u c t s , D a l l a s S e m i c o n d u c t o r • L e g a l N o t i c e s • P r i v a c y P o l i c y
相关型号：
MAX238CNG+
Line Transceiver, 4 Func, 4 Driver, 4 Rcvr, CMOS, PDIP24, ROHS COMPLIANT, PLASTIC, DIP-24
MAXIM
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