Instruction Manual

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General Description

The MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/

MAX2327 high-performance silicon germanium (SiGe)

receiver front-end ICs set a new industry standard for

low noise and high linearity at a low supply current. This

family integrates a variety of unique features such as an

LO frequency doubler and divider, dual low-noise

amplifier (LNA) gain settings, and a low-current paging

mode that extends the handset standby time.

The MAX2320 family includes six ICs: four operate at

both cellular and PCS frequencies, one operates at cel-

lular frequencies, and one at PCS frequencies (see

Selector Guide). Each part includes an LNA with a high

input third-order intercept point (IIP3) to minimize inter-

modulation and cross-modulation in the presence of

large interfering signals. In low-gain mode, the LNA is

bypassed to provide higher cascaded IIP3 at a lower

current. For paging, a low-current, high-gain mode is

provided.

The CDMA mixers in cellular and PCS bands have high

linearity, low noise, and differential IF outputs. The FM

mixer is designed for lower current and a single-ended

output.

All devices come in a 20-pin TSSOP-EP package with

exposed paddle (EP) and are specified for the extend-

ed temperature range (-40°C to +85°C).

Applications

CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones

Single/Dual/Triple-Mode Phones

Wireless Local Loop (WLL)

Features

♦ Ultra-High Linearity at Ultra-Low Current and

Noise

♦ +2.7V to +3.6V Operation

♦ Pin-Selectable Low-Gain Mode Reduces Gain by

17dB and Current by 3mA

♦ Pin-Selectable Paging Mode Reduces Current

Draw by 6mA when Transmitter Is Not in Use

♦ LO Output Buffers

♦ LO Frequency Doubler (MAX2321)

♦ LO Frequency Divider (MAX2326)

♦ 0.1µA Shutdown Current

♦ 20-Pin TSSOP-EP Package

MAX2320/21/22/24/26/27

Adjustable, High-Linearity,

SiGe Dual-Band LNA/Mixer ICs

________________________________________________________________ Maxim Integrated Products 1

MIXINH

MIXINL

RBIAS

CDMA+LNAINH

RLNA

20 TSSOP-EP

6mm x 6.3mm

LNAOUTL

LNAOUTH

TOP VIEW

CDMA-

BUFFEN

FMOUTGAIN

LIN

BAND

LNAINL

LOLOUT

LOHOUTLOHIN

LOLIN

MAX2320

MAX2321

MAX2326

TSSOP

19-1535; Rev 1; 6/00

PART

MAX2320EUP

MAX2321EUP

MAX2322EUP

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

20 TSSOP-EP

EVALUATION KIT MANUAL

FOLLOWS DATA SHEET

Typical Application Circuits appear at end of data sheet.

Pin Configurations continued at end of data sheet.

Pin Configurations

Ordering Information

MAX2324EUP

MAX2326EUP

MAX2327EUP

-40°C to +85°C

-40°C to +85°C 20 TSSOP-EP

20 TSSOP-EP

PCS band, single mode with optional frequency

doubler

MAX2322

MAX2320 with LO doubler

Dual-band, dual VCO inputs, and dual IF outputsMAX2320

MAX2321

DESCRIPTIONPART

Selector Guide

Dual-band, dual VCO inputs, and separately

controlled VCO buffers

MAX2327

MAX2320 with LO divider

Cellular band, dual IF outputsMAX2324

MAX2326

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

Summary of content (28 pages)

PAGE 1
9-1535; Rev 1; 6/00 UAL IT MAN TION K A ET U E L H A S EV TA WS DA FOLLO Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs All devices come in a 20-pin TSSOP-EP package with exposed paddle (EP) and are specified for the extended temperature range (-40°C to +85°C). Features ♦ Ultra-High Linearity at Ultra-Low Current and Noise ♦ +2.7V to +3.
PAGE 2
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +4.3V Digital Input Voltage to GND ......................-0.3V to (VCC + 0.3V) RF Input Signals ...........................................................1.0V peak Continuous Power Dissipation (TA = +70°C) 20-Pin TSSOP-EP (derate 80mW/°C above +70°C)........6.4W Operating Temperature Range ...........................
PAGE 3
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs (VCC = +2.7V to +3.6V, RRBIAS = RRLNA = 20kΩ, no RF signals applied, BUFFEN = low, LO buffer outputs connected to VCC through 50Ω resistors, all other RF and IF outputs connected to VCC, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +2.75V and TA = +25°C, unless otherwise noted.) PARAMETER Supply Voltage SYMBOL CONDITIONS MIN VCC Operating Supply Current (Note 1) ICC TYP +2.
PAGE 4
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs AC ELECTRICAL CHARACTERISTICS—MAX2320/MAX2321/MAX2326 (MAX232_ EV kit, VCC = +2.
PAGE 5
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs (MAX232_ EV kit, VCC = +2.
PAGE 6
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs AC ELECTRICAL CHARACTERISTICS (continued) (MAX232_ EV kit, VCC = +2.
PAGE 7
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27 Typical Operating Characteristics (MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50Ω system, all measurements include matching component losses but not connector and trace losses, TA = +25°C, unless otherwise noted.) CELLULAR-BAND SUPPLY CURRENT vs.
PAGE 8
Typical Operating Characteristics (continued) (MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50Ω system, all measurements include matching component losses but not connector and trace losses, TA = +25°C, unless otherwise noted.) CELLULAR-BAND HGHL LNA GAIN vs. CURRENT 17 50 0.7 40 RESISTANCE 30 20 0.6 0.
PAGE 9
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs PCS-BAND HGHL LNA IIP3 vs. CURRENT VCC = 3.6V 10 VCC = 2.7V 4 2 4 TA = +25°C 2 6 4 0 2 -2 0 -4 -2 VCC = 3V VCC = 2.7V 0 -2 -6 -4 6 8 10 12 14 16 -4 4 18 6 8 10 12 14 16 18 4 8 10 12 14 16 LNA CURRENT (mA) LNA CURRENT (mA) PCS-BAND HGHL LNA IIP3 vs. CURRENT CELLULAR-BAND HGHL LNA NOISE FIGURE vs. FREQUENCY CELLULAR-BAND HGLL LNA NOISE FIGURE vs. FREQUENCY 12 11.2mA 1.7 9mA 1.
PAGE 10
Typical Operating Characteristics (continued) (MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50Ω system, all measurements include matching component losses but not connector and trace losses, TA = +25°C, unless otherwise noted.) PCS-BAND HGHL MIXER CONVERSION GAIN vs. CURRENT 12.5 VCC = +2.7V, LOW SIDE LO 12.0 VCC = +3.
PAGE 11
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs CELLULAR-BAND MIXER IIP3 vs. LO INPUT LEVEL 5 LOW SIDE LO, HGHL 1 LOW SIDE LO, HGLL -1 HIGH SIDE LO, HGLL -2 HIGH SIDE LO, HGHL AND LGHL 3 LOW SIDE LO, LOW SIDE LO, FM HGHL AND LGHL 2 HIGH SIDE LO, HGHL -3 HIGH SIDE LO, HGLL -25 -20 -15 -14 -10 -6 -2 2 6 10 6 11 16 RF INPUT LEVEL PER TONE (dBm) LO INPUT LEVEL (dBm) MIXER CURRENT (mA) PCS-BAND HGHL MIXER IIP3 vs. CURRENT PCS-BAND MIXER IIP3 vs.
PAGE 12
Typical Operating Characteristics (continued) (MAX232_ EV kit, VCC = +2.75V, fLNAINH = fMIXINH = 1960MHz, fLNAINL = fMIXINL = 881MHz, fLOHIN = 1750MHz, fLOLIN = 1091MHz (digital modes), fLOLIN = 991MHz (FM mode), LO input power = -7dBm, 50Ω system, all measurements include matching component losses but not connector and trace losses, TA = +25°C, unless otherwise noted.) PCS-BAND HGLL MIXER NOISE FIGURE vs.
PAGE 13
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs PIN MAX2320 MAX2321 MAX2326 MAX2322 MAX2324 MAX2327 1 1 — 1 LNAOUTH High-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. 2 — 2 2 LNAOUTL Low-Band LNA Output. Connect a pull-up inductor to VCC and an external series capacitor as part of the matching network. NAME FUNCTION 3 3 3 — RLNA LNA Bias-Setting Resistor Connection.
PAGE 14
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27 Pin Description (continued) PIN MAX2320 MAX2321 MAX2326 11 11 MAX2324 — MAX2327 11 NAME FUNCTION LOHOUT High-Frequency LO Buffer Output. Open-collector output requires pull-up inductor or pull-up resistor of 100Ω or less. Reactive match to the load delivers maximum power. 12 — 12 12 LOLOUT Low-Frequency LO Buffer Output. Open-collector output requires pull-up inductor or pull-up resistor of 100Ω or less.
PAGE 15
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs Low-Noise Amplifier Within its operating bands, each device in the MAX2320 family (except the MAX2327) has three modes of LNA operation: high gain, high linearity (HGHL); high gain, low linearity (HGLL); and low gain, high linearity (LGHL). The logic inputs control the LNA mode as described in the AC Electrical Characteristics. Use HGHL mode when extra-high LNA linearity is required for cross-modulation suppression.
PAGE 16
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2322 Operation The MAX2322 is a lower-cost PCS-only version that can be installed as a drop-in replacement for the dual-band versions. It consists of a PCS LNA, PCS mixer, pinselectable LO frequency doubler, and LO buffer. Logic input SHDN = V CC / GND turns on/off the entire IC except the LO buffer. The LOX2 logic input controls the LO frequency doubler.
PAGE 17
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs noise figure. At the digital mixer outputs, keep the differential signal lines together and of equal length to ensure signal balance. For best gain and noise performance, solder the slug evenly to the board ground plane. Table 5. Typical Cascaded Performance of Cellular-Band Receiver with 3dB Interstage Filter Loss HIGH GAIN, HIGH LINEARITY HIGH GAIN, LOW LINEARITY Conversion Power Gain 25.4dB Noise Figure 2.1dB -8.
PAGE 18
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs Table 8. PCS LNA S Parameters in High-Gain, High-Linearity Mode FREQUENCY (MHz) S11 (mag) S11 (phase) S21 (mag) S21 (phase) S12 (mag) S12 (phase) S22 (mag) S22 (phase) 1700 0.46 -112 4.22 86 0.077 77 0.64 -51 1750 0.446 -113 4.07 88 0.082 77 0.64 -52 1800 0.44 -113 4.18 88 0.086 76 0.643 -52 1850 0.439 -113 4.23 84 0.09 77 0.657 -53 1900 0.434 -114 3.9 82 0.093 72 0.
PAGE 19
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27 Table 10. PCS Mixer S11 in High-Gain High-Linearity Mode FREQUENCY (MHz) S11 (mag) S11 (phase) 1700 0.865 -62 1750 0.864 -63 1800 0.865 -64 1850 0.867 -64 1900 0.863 -65 1950 0.862 -65 2000 0.861 -66 2050 0.879 -67 2100 0.86 -68 2150 0.858 -68 2200 0.854 -69 2250 0.85 -71 2300 0.845 -72 2350 0.838 -74 2400 0.83 -76 2450 0.825 -78 2500 0.805 -82 Table 11.
PAGE 20
Typical Application Circuits MAX2320 (DUAL BAND, DUAL VCO INPUTS, AND DUAL IF OUTPUTS) C19 2.7pF 869MHz–894MHz C17 6800pF 4.7nH 1930MHz–1990MHz R11 30Ω C14 1.5pF C1 100pF R1 20k L2 6.8nH 1 LNAOUTH 2 LNAOUTL 3 RLNA MAX2320 4 LNAINH VCC MIXINH 20 MIXINL 19 C13 0.01µF RBIAS 18 PCS DUPLEXER 6800pF 1pF CELLULAR DUPLEXER 6800pF KEY FEATURES: TWO LO INPUT PORTS FOR SEPARATE VCOs, TWO LO BUFFER OUTPUT PORTS. L6 5.6nH L1 1.
PAGE 21
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2321 (DUAL BAND, DUAL VCO INPUTS, LO DOUBLER, DUAL IF OUTPUTS, AND LO BUFFER) C19 869MHz–894MHz 2.7pF C17 6800pF 4.7nH 4.7nH NOTE: THE MAX2321 IS RECOMMENDED FOR TRIPLE-MODE PHONES. C18 1pF VCC KEY FEATURE: LO DOUBLER FOR SINGLE VCO OPERATION. 1930MHz–1990MHz R11 30Ω C14 1.5pF L6 5.6nH L1 1.8nH C1 100pF R1 20k L2 6.
PAGE 22
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27 Typical Application Circuits (continued) MAX2322 (PCS BAND, SINGLE MODE WITH OPTIONAL FREQUENCY DOUBLER) C16 1pF C14 6800pF L6 5.6nH VCC C13 1.5pF 1930MHz–1990MHz R11 30Ω VCC L1 1.8nH C1 100pF NOTE: THE MAX2322 IS RECOMMENDED FOR PCS SINGLE-BAND PHONES. R1 20k 1 LNAOUTH 2 N.C. 3 RLNA 4 LNAINH MAX2322 MIXINH 20 N.C. 19 RBIAS 18 R4 20k R3 2k 5 N.C. CDMA- 16 6 SHDN BUFFEN 15 7 LIN 8 GAIN 9 N.C.
PAGE 23
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2324 (CELLULAR BAND, DUAL IF OUTPUTS) C15 869MHz–894MHz 2.7pF C14 6800pF NOTE: THE MAX2324 IS RECOMMENDED FOR DUAL-MODE (CDMA/FM) PHONES IN THE CELLULAR BAND. 4.7nH VCC R11 30Ω L1 6.8nH R1 20k C1 100pF LOGIC OUTPUT CELLULAR DUPLEXER 6800pF 1 N.C. 2 LNAOUTL 3 4 RLNA MODEOUT MAX2324 VCC N.C. 20 MIXINL 19 C12 0.01µF RBIAS 18 CDMA+ 17 R5 20k L4 270nH L5 270nH R4 2k 3.
PAGE 24
Typical Application Circuits (continued) MAX2326 (DUAL BAND, DUAL VCO INPUTS, AND DUAL IF OUTPUTS WITH LO DIVIDER) 869MHz–894MHz C19 2.7pF C17 6800pF NOTE: THE MAX2326 IS RECOMMENDED FOR DUAL-BAND, TRIPLE-MODE PHONES. 4.7nH C15 6800pF C18 1pF VCC R11 30Ω L6 5.6nH L1 1.8nH L2 6.8nH C1 100pF R1 20k C2 100pF PCS DUPLEXER 1 LNAOUTH 2 LNAOUTL 3 4 1.65nH 1pF 6800pF CELLULAR DUPLEXER 3.85nH 6800pF 5 FROM CELLULAR PA AMPS LO PCS LO LOGIC INPUTS 3.
PAGE 25
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2327 (DUAL BAND, DUAL VCO INPUTS, AND SEPARATELY CONTROLLED VCO BUFFERS) C17 869MHz–894MHz 2.7pF C15 6800pF 4.7nH C16 1pF VCC 1930MHz–1990MHz C14 6800pF 1.5pF NOTE: THE MAX2327 IS RECOMMENDED FOR DUAL-BAND, TRIPLE-MODE PHONES WITH TDMA IN THE DIGITAL MODES, e.g., PCS1900 + AMPS. L6 5.6nH KEY FEATURES: TWO LO INPUT/OUTPUT PORTS FOR SEPARATE VCOs, SEPARATELY CONTROLLED VCO BUFFERS. R11 30Ω VCC L1 1.8nH C1 100pF L2 6.
PAGE 26
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2320/21/22/24/26/27 Pin Configurations (continued) TOP VIEW LNAOUTH 1 20 MIXINH N.C. 2 19 N.C. RLNA 3 MAX2322 SHDN 6 LIN 7 20 N.C. LNAOUTL 2 18 RBIAS LNAINH 4 N.C. 5 N.C. 1 19 MIXINL RLNA 3 17 CDMA+ MODEOUT 4 16 CDMA- LNAINL 5 15 BUFFEN SHDN 6 14 VCC 18 RBIAS 17 CDMA+ MAX2324 16 CDMA15 BUFFEN LIN 7 14 VCC GAIN 8 13 LOX2 GAIN 8 13 FMOUT N.C. 9 12 N.C. LOLIN 9 12 LOLOUT LOHIN 10 11 LOHOUT N.C. 10 TSSOP 11 N.C.
PAGE 27
Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs TSSOP.
PAGE 28
MAX2320/21/22/24/26/27 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs NOTES 28 ______________________________________________________________________________________