MAX2366 MAXIM [Maxim Integrated Products], MAX2366 Datasheet

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MAX2366

Manufacturer Part Number
MAX2366
Description
Complete Dual-Band Quadrature Transmitters
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
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
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.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
19-1780; Rev 0; 7/00
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.
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)
________________________________________________________________ Maxim Integrated Products
General Description
/QSPI
/MICROWIRE
Applications
-com-
Quadrature Transmitters
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
*Exposed paddle
MAX2366EGM
MAX2367EGM
MAX2368EGM
TXGATE
IFINH+
IFINL+
IFINH-
Filters
IFINL-
LOCK
RFH0
R
IDLE
RFL
V
V
BIAS
CC
CC
PART
Complete Dual-Band
10
11
12
1
2
3
4
5
6
7
8
9
-45
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
90
Σ
0
Ordering Information
-45
Functional Diagram
MAX2366
RFPLL
Σ
0
90 /2
IFPLL
PIN-PACKAGE
48 QFN-EP*
48 QFN-EP*
48 QFN-EP*
/2
Features
36
35
34
33
32
31
30
29
28
27
26
25
REF
N.C.
N.C.
TANKH+
TANKH-
TANKL+
TANKL-
IFLO
V
SHDN
I-
I+
CC
1

Related parts for MAX2366

MAX2366 Summary of contents

Page 1

... Rev 0; 7/00 General Description 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 through a quadrature modulator and IF variable-gain amplifier (VGA) ...

Page 2

... 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 BATT +85° ...

Page 3

... ELECTRICAL CHARACTERISTICS (MAX2366/67/68 evaluation kit: 50Ω system, operating modes as defined in Table 6, input voltage at I and Q = 200mV tial, common mode = V /2,300kHz quadrature CW tones, RF and IF synthesizers locked with passive lead-lag second-order loop fil- CC ter, REF = 200mVp-p at 19.68MHz LOL input power = -7dBm 966MHz, f ...

Page 4

... Complete Dual-Band Quadrature Transmitters ELECTRICAL CHARACTERISTICS (continued) (MAX2366/67/68 evaluation kit: 50Ω system, operating modes as defined in Table 6, input voltage at I and Q = 200mV tial, common mode = V /2,300kHz quadrature CW tones, RF and IF synthesizers locked with passive lead-lag second-order loop fil- CC ter, REF = 200mVp-p at 19.68MHz ...

Page 5

... V = +2.75V VCO VOLTAGE vs. TIME MAX2366/7/8-01 LOCK CS TIME (200µs/div) OUTPUT POWER, ACPR, I vs. VGC CC MAX2366/7/8-04 10 200 PCS CDMA, RFH0 0 180 P OUT -10 160 -20 140 -30 120 I CC 100 -40 ADJACENT 80 -50 60 -60 -70 40 ALTERNATE 20 -80 1.5 1.7 1.9 2.1 2.3 2.5 2.7 VGC (V) IF OUTPUT POWER vs. VGC ...

Page 6

... Complete Dual-Band Quadrature Transmitters (MAX2366EVKIT +2.75V +25°C, unless otherwise noted I/Q BASEBAND FREQUENCY RESPONSE 0 -0.5 -1.0 -1.5 -2.0 -2.5 -3 FREQUENCY (MHz) PHASE NOISE LOW-BAND OSCILLATOR vs. FREQUENCY OFFSET (130.38MHz) -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 10k 100k 1M 1k ...

Page 7

... V = +2.75V +25°C, unless otherwise noted vs. RFL OUTPUT POWER (836MHz) CC 180 170 160 150 140 130 120 110 100 -60 -50 -40 -30 -20 -10 0 OUTPUT POWER (dBm) BUFFERED LO OUTPUT 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 129.18 129.78 130.38 130.98 131.58 ...

Page 8

... Complete Dual-Band Quadrature Transmitters PIN MAX2366 MAX2360 MAX2367 MAX2368 1 — 10, 11 18, 16, 17, — 19, 30, 31, 32–35 34, 35 — — 10, 11 10, 11 — 13, 14, 15 13, 14, 15 13, 14, 15 ...

Page 9

... PIN MAX2366 MAX2367 MAX2368 16, 17 16, 17 — 18, 19 — 18 23, 24 23, 24 23, 24 25, 26 25 30, 31 — 30, 31 _______________________________________________________________________________________ Complete Dual-Band Quadrature Transmitters NAME Differential IF Outputs. These ports are active when the register bit IF_BAND is 1 ...

Page 10

... Complete Dual-Band Quadrature Transmitters PIN MAX2366 MAX2367 MAX2368 32, 33 32, 33 — 34, 35 — — — 44 — 44 45, 46, 48 45, 46, 48 45, 46 — Exposed Exposed Exposed paddle paddle paddle 10 ______________________________________________________________________________________ ...

Page 11

... IF VGA to provide optimum linearity and noise per- -80 formance. The total power control range is >100dB. -105 -111 The MAX2366 includes three power-amplifier (PA) dri- -121 vers. Each is optimized for the desired operating fre- -128 quency. RFL is optimized for cellular-band operation. IFLO Output Buffer ...

Page 12

... Table 6 shows an example of key registers for triple- mode operation, assuming half-band PCS and IF fre- quencies of 130MHz/165MHz. The MAX2366 is designed for use in dual-band, triple- mode systems recommended for triple-mode hand- sets (Figure 2). The MAX2367 is designed for use in ✕ (RFM / RFR) CDMA PCS handsets or WLL single-mode 2 ...

Page 13

MSB B19 RFM DIVIDE REGISTER X RFR DIVIDE REGISTER X IFM DIVIDE REGISTER X IFR DIVIDE REGISTER X CONTROL REGISTER X CONFIGURATION REGISTER X TEST REGISTER DON’T CARE Figure 1. Register Configuration Compliance Considerations Two major concepts ...

Page 14

Complete Dual-Band Quadrature Transmitters Table 3. Operation Control Register (OPCTRL) BIT POWER-UP LOCATION BIT NAME STATE (0 = LSB) LO_SEL 1 15 RCP_MAX 0 14 ICP_MAX 0 13 MODE 01 12, 11 IF_BAND 0 10 VCO 0 IFG 100 8, ...

Page 15

Table 4. Configuration Register (CONFIG) POWER-UP BIT NAME LOCATION STATE (0 = LSB) IF_PLL_SHDN 1 RF_PLL_ 1 SHDN RESERVED 0 IQ_LEVEL 1 BUF_DIV 0 VCO_BYPASS 0 ICP 00 RCP 00 IF_PD_POL 1 RF_PD_POL 1 IF_TURBO_ 1 CHARGE RF_TURBO_ 1 CHARGE ...

Page 16

Complete Dual-Band Quadrature Transmitters Table 5. Power-Down Modes POWER-DOWN MODE SHDN Pin Ultra-low shutdown current IDLE Pin IDLE is low in RX mode TXGATE Pin For punctured TX mode RF PLL SHDN For external RF PLL use IF PLL SHDN ...

Page 17

... Figure 2. MAX2366 Typical Application Circuit ______________________________________________________________________________________ Complete Dual-Band Quadrature Transmitters DAC 17 ...

Page 18

Complete Dual-Band Quadrature Transmitters 0.033µF 3300pF Figure 3. MAX2367 Typical Application Circuit 18 ______________________________________________________________________________________ DAC ...

Page 19

Figure 4. MAX2368 Typical Application Circuit ______________________________________________________________________________________ Complete Dual-Band Quadrature Transmitters DAC 19 ...

Page 20

... This will minimize charge-pump spurs at the compari- son frequency. Make sure there is no solder flux under the varactor or loop filter. Layout Issues The MAX2366/MAX2367/MAX2368 EV kit can be used as a starting point for layout. For best performance, take into consideration power-supply issues, as well as the RF, LO, and IF layout. ...

Page 21

... On the high-impedance ports (e.g., IF inputs and out- puts), keep traces short to minimize shunt capacitance. PART MAX2366 MAX2367 MAX2368 ______________________________________________________________________________________ Complete Dual-Band Quadrature Transmitters Keep the traces coming out of the tank short to reduce series inductance and shunt capacitance ...

Page 22

... Complete Dual-Band Quadrature Transmitters TOP VIEW RFL 1 RFH0 2 LOCK IDLE MAX2366 TXGATE 7 IFINL+ 8 IFINL- 9 IFINH+ 10 IFINH BIAS QFN-EP LOCK TXGATE IFINL+ IFINL- BOTTOM SIDE GND Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied ...

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