smitter is Not in Use LO Output Buffers LO Frequency Doubler (MAX2321) LO Frequency Divider (MAX2326) 0.1A Shutdown Current 20-Pin TSSOP-EP Package Ordering Information TEMP. RANGE PIN-PACKAGE MAX2320EUP PART -40C to +85C 20 TSSOP-EP MAX2321EUP MAX2322EUP MAX2324EUP -40C to +85C -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP MAX2326EUP MAX2327EUP MAX2329EUP* -40C to +85C -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP * Future product--contact factory for availability. Pin Configurations Wireless Local Loop (WLL) Selector Guide PART DESCRIPTION MAX2320 Dual-band, dual VCO inputs, and dual IF outputs MAX2321 MAX2320 with LO doubler MAX2322 PCS band, single mode with optional frequency doubler MAX2324 Cellular band, dual IF outputs MAX2326 MAX2320 with LO divider MAX2327 Dual-band, dual VCO inputs, and separately controlled VCO buffers MAX2329 PCS band with dual inputs, half-band PCS filter compatible TOP VIEW LNAOUTH 1 20 MIXINH LNAOUTL 2 19 MIXINL RLNA 3

smitter Is Not in Use LO Output Buffers LO Frequency Doubler (MAX2321) LO Frequency Divider (MAX2326) 0.1A Shutdown Current 20-Pin TSSOP-EP Package Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX2320EUP -40C to +85C 20 TSSOP-EP MAX2321EUP MAX2322EUP MAX2324EUP -40C to +85C -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP MAX2326EUP MAX2327EUP -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP Applications Pin Configurations CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones Single/Dual/Triple-Mode Phones TOP VIEW Wireless Local Loop (WLL) Selector Guide PART DESCRIPTION MAX2320 Dual-band, dual VCO inputs, and dual IF outputs MAX2321 MAX2320 with LO doubler MAX2322 PCS band, single mode with optional frequency doubler MAX2324 MAX2326 MAX2327 Dual-band, dual VCO inputs, and separately controlled VCO buffers LNAOUTH 1 20 MIXINH LNAOUTL 2 19 MIXINL RLNA 3 18 RBIAS LNAINH 4 20 TSSOP-EP 6mm x 6.3mm LNAINL 5 BAND 6 17 CDMA+ MAX2320 MAX2321 MAX2326 LIN 7 16 CDMA15 BUFFEN 14 VCC GAIN 8

smitter Is Not in Use LO Output Buffers LO Frequency Doubler (MAX2321) LO Frequency Divider (MAX2326) 0.1A Shutdown Current 20-Pin TSSOP-EP Package Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX2320EUP -40C to +85C 20 TSSOP-EP MAX2321EUP MAX2322EUP MAX2324EUP -40C to +85C -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP 20 TSSOP-EP MAX2326EUP MAX2327EUP -40C to +85C -40C to +85C 20 TSSOP-EP 20 TSSOP-EP Applications Pin Configurations CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones Single/Dual/Triple-Mode Phones TOP VIEW Wireless Local Loop (WLL) Selector Guide PART DESCRIPTION MAX2320 Dual-band, dual VCO inputs, and dual IF outputs MAX2321 MAX2320 with LO doubler MAX2322 PCS band, single mode with optional frequency doubler MAX2324 MAX2326 MAX2327 Dual-band, dual VCO inputs, and separately controlled VCO buffers LNAOUTH 1 20 MIXINH LNAOUTL 2 19 MIXINL RLNA 3 18 RBIAS LNAINH 4 20 TSSOP-EP 6mm x 6.3mm LNAINL 5 BAND 6 17 CDMA+ MAX2320 MAX2321 MAX2326 LIN 7 16 CDMA15 BUFFEN 14 VCC GAIN 8

MAX2324EVKIT -40C to +85C 20 TSSOP-EP MAX2326EVKIT -40C to +85C 20 TSSOP-EP MAX2327EVKIT -40C to +85C 20 TSSOP-EP *EP = Exposed paddle Features 50 SMA Ports for Easy Testing +2.7V to +3.6V Single-Supply Operation All Critical Matching Components Included Fully Assembled and Tested MAX2320/21/26/27 EV Kits Component List DESIGNATION QTY C1, C32 2 1.0pF 0.1pF ceramic caps (0603) Murata GRM39COG010B50V C2 1 2.7pF 0.1pF ceramic cap (0603) Murata GRM39COG2R7B50V C6, C11, C15, C18, C20, C28 6 100pF 5% ceramic caps (0603) Murata GRM39COG101J50V C4, C5, C8, C34 4 6800pF 5% ceramic caps (0603) Murata GRM39X7R682J50V C7, C17 2 22pF 5% ceramic caps (0603) Murata GRM39COG220J50V C9 1 0.033F 10% ceramic cap (0603) Murata GRM39X7R333K50V C10 1 4.7pF 0.1pF ceramic cap (0402) Murata GRM36COG4R7B50V C12 1 10F 20%,16V tantalum capacitor AVX TAJB106M016 or Sprague 293D106X0010B C13, C14, C23 3 3.3pF 0.1pF ceramic caps (0603) Murata GRM39COG3R3B50V or 3.3pF 0.25pF ceramic caps (0603) Murata GRM39COG3R3C50V C16, C19,

MAX2324EVKIT -40C to +85C 20 TSSOP-EP MAX2326EVKIT -40C to +85C 20 TSSOP-EP MAX2327EVKIT -40C to +85C 20 TSSOP-EP *EP = Exposed paddle Features 50 SMA Ports for Easy Testing +2.7V to +3.6V Single-Supply Operation All Critical Matching Components Included Fully Assembled and Tested MAX2320/21/26/27 EV Kits Component List DESIGNATION QTY C1, C32 2 1.0pF 0.1pF ceramic caps (0603) Murata GRM39COG010B50V C2 1 2.7pF 0.1pF ceramic cap (0603) Murata GRM39COG2R7B50V C6, C11, C15, C18, C20, C28 6 100pF 5% ceramic caps (0603) Murata GRM39COG101J50V C4, C5, C8, C34 4 6800pF 5% ceramic caps (0603) Murata GRM39X7R682J50V C7, C17 2 22pF 5% ceramic caps (0603) Murata GRM39COG220J50V C9 1 0.033F 10% ceramic cap (0603) Murata GRM39X7R333K50V C10 1 4.7pF 0.1pF ceramic cap (0402) Murata GRM36COG4R7B50V C12 1 10F 20%,16V tantalum capacitor AVX TAJB106M016 or Sprague 293D106X0010B C13, C14, C23 3 3.3pF 0.1pF ceramic caps (0603) Murata GRM39COG3R3B50V or 3.3pF 0.25pF ceramic caps (0603) Murata GRM39COG3R3C50V C16, C19,

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 cellular 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 intermodulation 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 f

cation engineers have built and measured in our labs. They can provide a starting point for new RF designs. They are not available as Evaluation Kits. Additional Information: Wireless Product Line Page Quick View Data Sheet for the MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/MAX2327 Applications Technical Support Objective: To develop a suitable pair of 110MHz IF matching circuits for this chip on-board application of the cellular-band dual-mode CDMA front-end IC. This project's requirement was to modify the analog AMPS' and digital mixers' matching circuits both to 110MHz IF, while meeting a specified gain, NF, and linearity spec. Here, we included the package dimensions of the bare die, because the application was for direct chip on board in an RF module application. The MAX2324 low-noise amplifier (LNA) plus mixer is designed for cellular-band CDMA cell-phone handsets, but it can also be used in TDMA, GSM, or EDGE applications. It offers two LNA gain states to meet the required CDMA d

cation engineers have built and measured in our labs. They can provide a starting point for new RF designs. They are not available as Evaluation Kits. Additional Information: Wireless Product Line Page Quick View Data Sheet for the MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/MAX2327 Applications Technical Support Objective: For the RF mixer in the FM (AMPS) signal path, to optimize the trade-off between best linearity versus highest gain by custom-tuning the output matching circuit. The MAX2320 evaluation board was used to characterize the MAX2324, as the MAX2320 contains a superset of the features and will give virtually identical cellular band performance. Note that this IC offers both a digital (CDMA or TDMA) path mixer and an FM (AMPS) path mixer whose outputs are open collector. Varying their load line changes both the gain and the IIP3 performance (inversely proportional). In this application, the output match to the FM mixer was optimized for IIP3. The MAX2324 low-noi

REP001: AMPS FM mixer trades off IIP3 for gain Abstract: This reference design (RD) for an RF mixer in the FM (AMPS) signal path custom tunes the output matching circuit to optimize the trade-off between IIP3 and the highest gain. The design features the MAX2324 low-noise amplifier (LNA) with RF mixer for cellular-band CDMA, TDMA, GMS, and EDGE applications. More Information - Wireless Home - Application Notes and Tutorials - EV Kit Software - Technical Support Rapid Engineering Prototypes are real circuits that Maxim application engineers have built and measured in our labs. They can provide a starting point for new RF designs. They are not available as evaluation kits. Objective: For the RF mixer in the FM (AMPS) signal path, to optimize the trade-off between best linearity versus highest gain by custom-tuning the output matching circuit. The MAX2320 evaluation board was used to characterize the MAX2324, as the MAX2320 contains a superset of the features and will give virtually id

g low-power receive mode, the system can still receive a signal that wiil acti- vate it on command and prepare it for communication at faster data rates. This operation conserves syslem power. Negative ThreshoidMAX243 The MAX243 is pin compatible with the MAX2324, differing onty in that RS-232 cable fault protection is removed on one of the two receiver inputs. This means that control lines such as CTS and RTS can either be driven or left floating without interrupting communication. Different cables are not needed to interface with different pieces of equipment. MAXLM+5V-Powered, Multi-Channel RS-232 The input threshold of the receiver withaut cable fault protection is -0.8V rather than +1.4V. Its output goes pos- itive only if the input is connected to a control tine that is actively driven negative. If not driven, it defaults to the 0 or OK to send" state. Normally, the MAX243's other receiver (+1.4V threshold) is used for the data tine (TD or RD}, while the negative threshold receiver is conne

the MAX2264/MAX2265 MAX2310/MAX2312/MAX2314/MAX2316 CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer MAX2310/MAX2314EVKIT Evaluation Kit for the MAX2310/MAX2314 MAX2312/MAX2316EVKIT Evaluation Kit for the MAX2312/MAX2316 MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/MAX2327/MAX2329 Adjustable, High-Linearity, SiGe Dual-Band LNA/Mixer ICs MAX2402 800MHz to 1000MHz Transmitter MAX2402EVKIT Evaluation Kit for the MAX2402 MAX2406 Low-Cost Downconverter with Low-Noise Amplifier MAX2406EVKIT Evaluation Kit for the MAX2406 MAX2410 Low-Cost RF Up/Downconverter with LNA and PA Driver MAX2410EVKIT Evaluation Kit for the MAX2410 MAX2411A Low-Cost RF Up/Downconverter with LNA and PA Driver MAX2411AEVKIT Evaluation Kit for the MAX2411A MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 900MHz Image-Reject Transceivers MAX2420/MAX2421/MAX2422/MAX2460/MAX2463EVKIT Evaluation Kit for the MAX2420/MAX2421/MAX2422/MAX2460/MAX2463 MAX2424/MAX2426 900MHz Image-Reject Receivers with Transmit Mixer MAX2424/MAX2426EVKIT Evalu

des a superset of MAX2325 features. The MAX2325 low-noise amplifier (LNA) plus mixer is designed for single-band CDMA cellular-phone handsets, but it can also be used in 800-900MHz-band TDMA, GSM, or EDGE applications. It differs from its predecessor (the MAX2324) by adding a third "mid-gain" state for the LNA that improves switchover hysteresis margin. The MAX2325 also comes in a smaller package (28QFN) and offers increased third-order input intercept. Block diagram of a receive-path application Bill of materials, part 1 Bill of materials, part 2 Schematic of the MAX2323 evaluation kit with the MAX2325 IC installed (PDF, 58kB) Related Parts MAX2325 Triple/Dual-Mode CDMA LNA/Mixers Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EEMailTM. Application note 447: www.maxim-ic.com/an447 More information Page 1 of 2 For technical support: www.maxim-ic.com/support For samples: www.maxim-ic.com/samples Other qu

Yes 50 to 400 20-TSSOP-EP 2.3 Yes +11/+5/+17 +4.5 800 to 1000 50 to 400 28-QFN 2.3 Yes +9/+4/+15 1800 to 2500/ 800 to 1000 1800 to 2500/ 800 to 1000 1800 to 2500/ 800 to 1000 50 to 400 20-TSSOP-EP 2.6 Yes 2110 to 2170 150 to 400 + MAX2320 MAX2322 MAX2323 MAX2324 MAX2325 MAX2326 MAX2327 MAX2338 Adj. (29/19/19) +9/+4/+5 +4/+1.5 +11/+5/+17 +4.5 +9/+4/+16 +4/+1.5 +4/+1.5 +2/+3.5 +1.5/+1.5/ +5.5 +12/+5/+18 +5/+2.5 20-TSSOP-EP 2.6 Yes LNA PCS LO VCO LNA PCS VCO LO LNA PCS 2 IF LNA IF VCO LNA IF 50 to 400 20-TSSOP-EP 2.74 Yes 50 to 400 28-QFN 2.4 Yes LNA PCS LO IF VCO MAX2388 MAX2389 MAX2685 1k +2 +8 2.3 Yes +4 +8 2110 to 2170 150 to 400 12-QFN 2.3 8.4 +4 +4 -9.5 cascaded 2110 to 2170 800 to 1000 150 to 400 80 12-QFN 16-QSOP 2.3 2.97 3.00 2.94 3.75 LNA Yes Yes Yes LO 4.05 32dB LNA 18dB LNA 18dB -10dBm LO 8/5 3.51 3 VCO MAX2320 -10dBm LO 10/7 -4dBm LO LNA IF 3.00 IF VCO LNA 12-QFN PCS PCS LO 2 MAX2387 3.75 IF LO W-CDMA UMTS W-CDMA UMTS W-CDMA UMTS IS-136 TDMA 868/900MHz ISM 1.37 / I/Q MAX2108 I/Q (V) (

FN CDIP PDIP PRODUCT PROCESS PACKAGE MAX231 MAX2310 MAX2312 MAX2314 MAX2316 MAX2319 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX232 MAX2320 MAX2321 MAX2322 MAX2323 MAX2324 MAX2325 MAX2326 MAX2327 MAX2330 MAX2335 MAX2338 MAX234 MAX234 MAX234 MAX2340 MAX2341 MAX2344 MAX2348 MAX235 MAX2351 MAX2354 MAX2358 MAX2359 Metal Gate 6um (M6) Dual Poly Emitter NPN Bipolar (GST20) Dual Poly Emitter NPN Bipolar (GST20) Dual Poly Emitter NPN Bipolar (GST20) Dual Poly Emitter NPN Bipolar (GST20) Dual Poly Emitter NPN Bipolar (GST20) Metal Gate 5um (M5) Metal Gate 6um (M6) Silicon Gate 0.8um CMOS (B8) Silicon Gate 5um (SG5) Metal Gate 5um (M5) Metal Gate 6um (M6) Silicon Gate 0 0.8um 8um CMOS (B8) Silicon Gate 5um (SG5) Metal Gate 5um (M5) Metal Gate 6um (M6) Silicon Gate 0.8um CMOS (B8) Silicon Gate 5um (SG5) Metal Gate 5um (M5) M t lG Metal Gate t 6um 6 (M6) Silicon Gate 0.8um CMOS (B8) Silicon Gate 5um (SG5) Metal Gate 5

O MAX230 (MAX200) +5 5/0 4 1.0 (0.1) Yes 120 5 drivers with shutdown MAX231 (MAX201} +5 and 2/2 2 1.0 (0.1) No 120 Standard +5/+12V or battery supplies: same +75 to +13.2 functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No 120 (64) Industry standard MAX2324 +5 ale 4 a1 No 200 Higher slew rate, small caps MAX233 (MAX203) +5 2/2 0 = No 120 No external caps MAX233A +5 2/2 9 - No 200 No external caps, high siew rate MAX234 (MAX204) +5 4/0 4 1.0 (0.1) No 120 Replaces 1488 MAX235 (MAX205) +5 5/5 0 - Yes 120 No external caps MAX236 (MAX206) +5 4/3 4 1.0 (0.1) Yes 120 Shutdown, three-state MAX237 (MAX207) +5 5/3 4 1.0(0.1) No 120 Complements IBM PC serial port MAX238 (MAX208) +5 4/4 4 1.0 (0.1) No 120 Replaces 1488 and 1489 MAX239 (MAX209) +5 and 3/5 2 1.0 (0.1) No 120 Standard +5/+ 12V or battery supplies; single +7.5 to +13.2 package solution for IBM PC serial port MAX240 +5 5/5 4 10 Yes 120 DIP or flalpack package MAX241 (MAX211) +5 4/5 4 4.0 (0.1) Yes 120 Complete IBM PC serial port MAK242 +5 B