max2367egm-td Maxim Integrated Products, Inc., max2367egm-td Datasheet

max2367egm-td

Manufacturer Part Number

max2367egm-td

Description

Complete Dual-band Quadrature Transmitters

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX2367EGM-TD.pdf (22 pages)

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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

IDLE

RFL

BIAS

PART

Complete Dual-Band

-45

TEMP. RANGE

-40°C to +85°C

Ordering Information

-45

Functional Diagram

MAX2366

RFPLL

90 /2

IFPLL

PIN-PACKAGE

48 QFN-EP*

Features

REF

N.C.

TANKH+

TANKH-

TANKL+

TANKL-

IFLO

SHDN

I-

I+

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max2367egm-td Summary of contents

Page 1

... Supply Current Drops as Output Power Is Reduced o Dual Synthesizer for IF and 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 PART MAX2366EGM ™ /MICROWIRE -com- MAX2367EGM MAX2368EGM *Exposed paddle Applications RFL RFH0 LOCK V CC IDLE V CC TXGATE ...

Page 2

Complete Dual-Band Quadrature Transmitters ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +3.6V CC RFL, RFH0, RFH1................................................................+5.5V DI, CLK, CS, VGC, SHDN, TXGATE, IDLE, LOCK ...........................................-0. Input Pins (IFINL, IFINH TANKL, TANKH, REF, RFPLL, LOL, ...

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 ...

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 ...

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 ...

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) ...

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 ...

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 — ...

Page 9

PIN MAX2366 MAX2367 MAX2368 16, 17 16, 17 — 18, 19 — 18 23, 24 23, 24 23, 24 25, 26 25 ...

Page 10

Complete Dual-Band Quadrature Transmitters PIN MAX2366 MAX2367 MAX2368 32, 33 32, 33 — 34, 35 — — ...

Page 11

Detailed Description The MAX2366 complete quadrature transmitter accepts differential I/Q baseband inputs with external common- mode bias. A modulator upconverts this to IF frequency in the 120MHz to 300MHz range. A gain control voltage pin (VGC) controls the gain of ...

Page 12

Complete Dual-Band Quadrature Transmitters RFH0 and RFH1 are optimized for split-band PCS opera- tion. The PA drivers have open-collector outputs and require pullup inductors. The pullup inductors can act as the shunt element in a shunt series match. Programmable Registers ...

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

Complete Dual-Band Quadrature Transmitters DI B19 (MSB) B18 CLK Figure 5. 3-Wire Interface Diagram The low-band tank (TANKL+, TANKL-) and high-band tank (TANKH+, TANKH-) are fully differential. The exter- nal tank components are shown in Figure 6. ...

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 ...

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 ...

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