19-1780; Rev 0; 7/00
KIT
ATION
EVALU
BLE
AVAILA
Complete Dual-Band
Quadrature Transmitters
General Description
Features
o
Dual-Band, Triple-Mode Operation
o
+7dBm Output Power with -54dBc ACPR
o
100dB Power Control Range
o
Supply Current Drops as Output Power Is Reduced
o
Dual Synthesizer for IF and RF LO
o
Dual On-Chip IF VCO
o
QSPI/SPI/MICROWIRE-Compatible 3-Wire Bus
o
Digitally Controlled Operational Modes
o
+2.7V to +5.5V Operation
o
Single Sideband Upconverter Eliminates SAW
Filters
MAX2366/MAX2367/MAX2368
The MAX2366 dual-band, triple-mode complete transmit-
ter for cellular phones represents the most integrated and
architecturally advanced solution to date for this applica-
tion. The device takes a differential I/Q baseband input
and mixes it up to IF through a quadrature modulator and
IF variable-gain amplifier (VGA). The signal is then routed
to an external bandpass filter and upconverted to RF
through an SSB mixer and RF VGA. The signal is further
amplified with an on-board PA driver. Dual IF synthesiz-
ers, dual RF synthesizers, a local oscillator (LO) buffer,
and a 3-wire programmable bus complete the basic func-
tional blocks of this IC. The MAX2367 supports single-
band, single-mode (PCS) operation. The MAX2368
supports single-band cellular dual-mode operation.
The MAX2366 enables architectural flexibility because
its two IF voltage-controlled oscillators (VCOs), two IF
ports, two RF LO input ports, and three PA driver output
ports allow the use of a single receive IF frequency and
split-band PCS filters for optimum out-of-band noise
performance. The PA drivers allow up to three RF SAW
filters to be eliminated. Select a mode of operation by
loading data on the SPI
™
/QSPI
™
/MICROWIRE
™
-com-
patible 3-wire serial bus. Charge-pump current, side-
band rejection, IF/RF gain balancing, standby, and
shutdown are also controlled with the serial interface.
The MAX2366/MAX2367/MAX2368 come in a 48-pin
QFN-EP package and are specified for the extended
(-40°C to +85°C) temperature range.
Ordering Information
PART
MAX2366EGM
MAX2367EGM
MAX2368EGM
*Exposed paddle
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
48 QFN-EP*
48 QFN-EP*
48 QFN-EP*
Functional Diagram
RFPLL
V
CC
RFCP
V
CC
42
41
40
39
RFPLL
IFPLL
GND
RFH1
GND
Triple-Mode, Dual-Mode, or Single-Mode
Mobile Phones
Satellite Phones
Wireless Data Links (WAN/LAN)
Wireless Local Area Networks (LANs)
High-Speed Data Modems
High-Speed Digital Cordless Phones
Wireless Local Loop (WLL)
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
RFL
RFH0
LOCK
V
CC
IDLE
V
CC
TXGATE
IFINL+
IFINL-
IFINH+
IFINH-
R
BIAS
1
2
3
4
5
6
7
8
9
10
11
12
48
47
46
45
44
43
38
37
IFCP
V
CC
GND
LOL
LOH
Applications
36
35
34
33
32
31
MAX2366
Σ
90
0
-45
-45
/2
30
29
28
0
Σ
90 /2
27
26
25
REF
N.C.
N.C.
TANKH+
TANKH-
TANKL+
TANKL-
IFLO
V
CC
SHDN
I-
I+
13
14
15
16
17
18
19
20
21
22
23
CS
IFOUTH-
IFOUTH+
IFOUTL+
IFOUTL-
VGC
CLK
DI
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
V
CC
V
CC
Q+
Q-
24
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Complete Dual-Band
Quadrature Transmitters
MAX2366/MAX2367/MAX2368
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ...........................................................-0.3V to +3.6V
RFL, RFH0, RFH1................................................................+5.5V
DI, CLK,
CS,
VGC,
SHDN, TXGATE,
IDLE,
LOCK ...........................................-0.3V to (V
CC
+ 0.3V)
AC Input Pins (IFINL, IFINH, Q, I, TANKL, TANKH,
REF, RFPLL, LOL, LOH)..........................................1.0V peak
Digital Input Current (SHDN,
TXGATE, IDLE,
CLK, DI,
CS)
................................................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
48-Pin QFN-EP (derate 27mW/°C above +70°C) ..............2.5W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°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
(MAX2366/7/8
test fixture:
V
CC
= V
BATT
= +2.75V,
SHDN
=
IDLE
=
TXGATE
= +2.0V, VGC = +2.5V, R
BIAS
= 16kΩ, T
A
= -40°C to
+85°C, unless otherwise noted. Typical values are at T
A
= +25°C, and operating modes are defined in Table 6.)
PARAMETER
Operating Supply Voltage
VGC = 0.5V
PCS mode
VGC = 2.0V
VGC = 2.5V
VGC = 0.5V
(Note 1)
Operating Supply Current
Cellular
digital mode
VGC = 2.0V
VGC = 2.5V
VGC = 0.5V
FM mode
VGC = 2.0V
VGC = 2.5V
Addition for IFLO buffer
IDLE
= 0.6V, cell idle
TXGATE
= 0.6V
RFPLL off
2.0
0.6
-5
-10
225
V
CC
- 0.4
0.4
280
+5
+10
CONDITIONS
MIN
2.7
92
97
132
91
95
132
85
89
114
6.5
15
26
11
0.5
20
µA
V
V
µA
µA
kΩ
V
V
TYP
MAX
3.0
118
123
161
110
122
164
110
114
142
9.5
20
34
mA
UNITS
V
SHDN
= 0.6V, sleep mode
Logic High
Logic Low
Logic Input Current
VGC Input Current
VGC Input Resistance During Shutdown
Lock Indicator High
Lock Indicator Low
(Note 7)
(Note 7)
(Note 7)
(Note 7)
SHDN
= 0.6V (Note 7)
50kΩ pullup load (Note 7)
50kΩ pullup load (Note 7)
2
_______________________________________________________________________________________
Complete Dual-Band
Quadrature Transmitters
ELECTRICAL CHARACTERISTICS
(MAX2366/67/68
evaluation kit:
50Ω system, operating modes as defined in Table 6, input voltage at I and Q = 200mV
RMS
differen-
tial, common mode = V
CC
/2,300kHz quadrature CW tones, RF and IF synthesizers locked with passive lead-lag second-order loop fil-
ter, REF = 200mVp-p at 19.68MHz, V
CC
=
SHDN
=
IDLE
=
CS
=
TXGATE
= +2.75V, V
BAT
= +2.75V, IF output load = 400Ω, LOH,
LOL input power = -7dBm, f
LOL
= 966MHz, f
LOH
= 1750MHz, IFINH = 125mV
RMS
at 130MHz, IS-95 CDMA modulation f
RFH0
= f
RFH1
= 1880MHz, f
RFL
= 836MHz, T
A
= +25°C, unless otherwise noted.)
PARAMETER
IF_BAND = 0
IF_BAND = 1
V
CC
= 2.7V to 3.0V (Notes 2, 3, 7)
VGC = 0.5V to 2.5V, IFG = 100
VGC = 2.5V, IFG = 100, ACPR = -70dBc
Relative to +25°C, T
A
= -40°C to +85°C
(Note 4)
VGC = 2.5V, IFG = 100
VGC = 2.5V, IFG = 100
VGC = 0.5V to 2.5V, IFG = 100
VGC = 2.5V, IFG = 111, I/Q modulation
Output Power at IFOUTL
UPCONVERTER AND PREDRIVER
IF Frequency Range
RFL Frequency Range
RFH Frequency Range
LOL Frequency Range
LOH Frequency Range
RFPLL Frequency Range
Output Power, RFL Port
Output Power, RFH1 Port
Output Power, RFH0 Port
Power Control Range
Gain Variation Over Temperature
LO Leakage
Image Signal
IF_BAND = 0
IF_BAND = 1
RFL port
RFH0 and RFH1 ports
120–200
180–300
800–1000
1700–2000
800–1150
1400–2300
1300
2300
7
12
7.5
6.6
30
±1
-17
-29
±2
MHz
MHz
MHz
MHz
MHz
MHz
dBm
dBm
dBm
dB
dB
dBm
dBc
VGC = 2.5V, IFG = 111,
direct VCO modulation
-1
30
30
49
38
85
-8.5
-5.5
dBm
1.35
CONDITIONS
MIN
TYP
120–235
120–300
V
CC
/2
85
-10
+1
V
CC
-
1.25
MAX
UNITS
MODULATOR, QUADRATURE MODES (CDMA, PCS, FM_IQ)
IF Frequency Range
I/Q Common-Mode Input Voltage
IF Gain Control Range
IF Output Power at IFOUTL and IFOUTH,
CDMA Mode
Gain Variation Over Temperature
Carrier Suppression
Sideband Suppression
MODULATOR, FM MODE
IF Gain Control Range
MHz
V
dB
dBm
dB
dB
dB
dB
MAX2366/MAX2367/MAX2368
Cellular frequency operation
PCS frequency operation
VGC = 2.5V
ACPR = -54dBc
FM mode
VGC = 2.6V, ACPR = -54dBc
VGC = 2.6V, ACPR = -54dBc
VGC = 0.5V to 2.5V
Relative to +25°C, T
A
= -40°C to +85°C
(Note 4)
_______________________________________________________________________________________
3
Complete Dual-Band
Quadrature Transmitters
MAX2366/MAX2367/MAX2368
ELECTRICAL CHARACTERISTICS (continued)
(MAX2366/67/68
evaluation kit:
50Ω system, operating modes as defined in Table 6, input voltage at I and Q = 200mV
RMS
differen-
tial, common mode = V
CC
/2,300kHz quadrature CW tones, RF and IF synthesizers locked with passive lead-lag second-order loop fil-
ter, REF = 200mVp-p at 19.68MHz, V
CC
=
SHDN
=
IDLE
=
CS
=
TXGATE
= +2.75V, V
BAT
= +2.75V, IF output load = 400Ω, LOH,
LOL input power = -7dBm, f
LOL
= 966MHz, f
LOH
= 1750MHz, IFINH = 125mV
RMS
at 130MHz, IS-95 CDMA modulation f
RFH0
= f
RFH1
= 1880MHz, f
RFL
= 836MHz, T
A
= +25°C, unless otherwise noted.)
PARAMETER
IF_PLL
Reference Frequency
Frequency Reference Signal Level
IF Main Divide Ratio
IF Reference Divide Ratio
VCO Operating Range
IF LO Output Power
VCO = 0
VCO = 1
BUF_EN = 1
ICP = 00 (Note 7)
Charge-Pump Source/Sink Current
ICP = 01 (Note 7)
ICP = 10 (Note 7)
ICP = 11 (Note 7)
Turbolock Boost Current
Charge-Pump Source/Sink Matching
Charge-Pump High-Z Leakage
RF_PLL
RF Main Divide Ratio
RF Reference Divide Ratio
Maximum Phase-Detector Comparison
Frequency
RCP = 00 (Note 7)
Charge-Pump Source/Sink Current
RCP = 01 (Note 7)
RCP = 10 (Note 7)
RCP = 11 (Note 7)
Turbolock Boost Current
Charge-Pump Source/Sink Matching
Charge-Pump High-Z Leakage
RFPLL Input Sensitivity
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
(Note 5, 6)
Locked, all values of RCP, over specified
compliance range (Note 6, 7)
Over specified compliance range (Note 6)
160
100
135
210
270
245
(Note 5, 7)
Locked, all values of ICP, over specified
compliance range (Note 6)
Over specified compliance range (Note 6)
4096
2
10
165
230
340
450
435
5
10
225
310
460
630
630
µA
%
nA
mVp-p
µA
115
145
235
300
265
5
0.1
256
2
240–470
240–600
-6
175
235
350
465
450
5
10
262144
8192
MHz
230
315
470
625
615
µA
%
nA
µA
30
0.6
16384
2048
MHz
dBm
MHz
Vp-p
CONDITIONS
MIN
TYP
MAX
UNITS
See Table 6 for register settings.
ACPR is met over the specified V
CM
range.
V
CM
must be supplied by the I/Q baseband source with ±6µA capability.
Guaranteed by design and characterization.
When enabled, turbolock is active during acquisition and injects boost current in addition to the normal charge-pump current.
Charge Pump Compliance range is 0.5V to V
CC
- 0.5V.
>25°C guaranteed by production test. <25°C guaranteed by design and characterization.
4
_______________________________________________________________________________________
Complete Dual-Band
Quadrature Transmitters
Typical Operating Characteristics
(MAX2366EVKIT, V
CC
= +2.75V, T
A
= +25°C, unless otherwise noted.)
IF VCO VOLTAGE vs. TIME
MAX2366/7/8-01
MAX2366/7/8-02
MAX2366/MAX2367/MAX2368
TANK 1/S11 vs. FREQUENCY
20
10
P
OUT
(dBm), ACPR/ALTR (dBc)
0
-10
-20
-30
-40
-50
-60
-70
OUTPUT POWER, ACPR
I
CC
vs. VGC
CELLULAR CDMA, RFL
MAX2366/7/8-03
200
182
LOCK
5
4
VOLTS (1V/div)
3
2
1
z
0
= 200Ω
CS
P
OUT
164
146
I
CC
(mA)
128
I
CC
ADJACENT
110
92
74
56
TIME (200µs/div)
EQUIVALENT PARALLEL R-C
1: 200MHz, 1.76kΩ, 0.26pF
2: 260MHz, 1.66kΩ, 0.31pF
3: 330MHz, 1.58kΩ, 0.34pF
4: 780MHz, 1.21kΩ, 0.43pF
5: 1GHz, 0.94kΩ, 0.47pF
ALTERNATE
1.5
1.7
1.9
2.1
VGC (V)
2.3
2.5
2.7
38
20
-80
OUTPUT POWER, ACPR,
I
CC
vs. VGC
10
0
P
OUT
(dBm), ACPR/ALTR (dBc)
-10
-20
-30
-40
-50
-60
-70
ALTERNATE
-80
1.5
1.7
1.9
2.1
VGC (V)
2.3
2.5
2.7
ADJACENT
I
CC
P
OUT
MAX2366/7/8-04
OUTPUT POWER, ACPR,
I
CC
TOTAL vs. VGC
200
180
P
OUT
(dBm), ACPR/ALTR (dBc)
160
I
CC
TOTAL (mA)
140
120
100
80
60
40
20
10
0
-10
-20
-30
-40
ADJACENT
-50
ALTERNATE
-60
-70
-80
1.5
1.7
1.9
2.1
VGC (V)
2.3
2.5
2.7
60
40
20
-100
80
I
CC
P
OUT
MAX2366/7/8-05
IF OUTPUT POWER
vs. VGC AND IF DAC SETTING
180
160
I
CC
TOTAL (mA)
140
120
100
P
OUT
(dBm)
-20
-40
-60
-80
111
101
001
010
011
-120
0
0.5
1.0
1.5
VGC (V)
2.0
2.5
3.0
110
100
MAX2366/7/8-06
PCS CDMA, RFH0
PCS CDMA, RFH1
200
0
000
IF OUTPUT POWER vs. VGC
MAX2366/7/8-07
IF OUTPUT POWER vs. VGC
MAX2366/7/8-08
SIDEBAND SUPPRESSION AND
LO FEEDTHROUGH (IFOUTH)
-10
-20
-30
P
OUT
(dBm)
-40
-50
-60
-70
-80
-90
SIDEBAND
LO
DESIRED
MAX2366/7/8-09
0
-10
-20
-30
IF POWER (dBm)
-40
-50
-60
-70
-80
-90
-100
-110
0
0.5
1.0
1.5
+25°C
0
-20
2.7V, 3.0V, 3.3V
-40
P
OUT
(dBm)
-60
-80
-100
-120
0
-40°C
+85°C
-100
0
0.5
1.0
1.5
VGC (V)
2.0
2.5
3.0
129.98
130.18
130.38
130.58
130.78
FREQUENCY (MHz)
2.0
2.5
3.0
VGC (V)
_______________________________________________________________________________________
5
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