MAX2769
Manufacturer
Analog Devices Inc./Maxim Integrated
Category
RF and Wireless
Overview
Part 1: Markdown Summary
Part: MAX2769 from Maxim Integrated Products, Inc.
Type: Global Navigation Satellite System (GNSS) Receiver
Key Specs:
- Cascaded Noise Figure: 1.4 dB
- Supply Voltage: 2.7V to 3.3V
- Supply Current (Low-Power Mode): 10 mA
- RF Frequency (L1 band): 1575.42 MHz
Features:
- GPS/GLONASS/Galileo Receivers
- No External IF SAW or Discrete Filters Required
- Programmable IF Frequency
- Fractional-N Synthesizer with Integrated VCO Supports Wide Range of Reference Frequencies
- Dual-Input Uncommitted LNA for Separate Passive and Active Antenna Inputs
- 1.4dB Cascade Noise Figure
- Integrated Crystal Oscillator
- Integrated Active Antenna Sensor
- 10mA Supply Current in Low-Power Mode
- 2.7V to 3.3V Supply Voltage
- Small, 28-Pin, RoHS-Compliant, Thin QFN Lead-Free Package (5mm x 5mm)
Applications:
- Location-Enabled Mobile Handsets
- PNDs (Personal Navigation Devices)
- PMPs (Personal Media Players)
- PDAs (Personal Digital Assistants)
- In-Vehicle Navigation Systems
- Telematics (Asset Tracking, Inventory Management)
- Recreational/Marine Navigation/Avionics
- Software GPS
- Laptops and Ultra-Mobile PCs
- Digital Still Cameras and Camcorders
Package:
- 28-pin Thin QFN-EP: 5mm x 5mm
- Dice (In Wafer Form)
Features
- ♦ GPS/GLONASS/Galileo Receivers
- ♦ No External IF SAW or Discrete Filters Required
- ♦ Programmable IF Frequency
- ♦ Fractional-N Synthesizer with Integrated VCO Supports Wide Range of Reference Frequencies
- ♦ Dual-Input Uncommitted LNA for Separate Passive and Active Antenna Inputs
- ♦ 1.4dB Cascade Noise Figure
- ♦ Integrated Crystal Oscillator
- ♦ Integrated Active Antenna Sensor
- ♦ 10mA Supply Current in Low-Power Mode
- ♦ 2.7V to 3.3V Supply Voltage
- ♦ Small, 28-Pin, RoHS-Compliant, Thin QFN Lead-Free Package (5mm x 5mm)
Applications
Location-Enabled Mobile Handsets
PNDs (Personal Navigation Devices)
PMPs (Personal Media Players)
PDAs (Personal Digital Assistants)
In-Vehicle Navigation Systems
Telematics (Asset Tracking, Inventory Management)
Recreational/Marine Navigation/Avionics
Software GPS
Pin Configurations appear at end of data sheet. Laptops and Ultra-Mobile PCs
Functional Diagrams continued at end of data sheet. Digital Still Cameras and Camcorders
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configuration
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maximintegrated.com.
ABSOLUTE MAXIMUM RATINGS
| PART | TEMP RANGE | PIN-PACKAGE |
|---|---|---|
| MAX2769ETI+ | -40°C to +85°C | 28 Thin QFN-EP* |
| MAX2769EW | -40°C to +85°C | Dice (In Wafer Form) |
| PART | TEMP RANGE | PIN-PACKAGE |
|---|---|---|
| MAX2769ETI+ | -40°C to +85°C | 28 Thin QFN-EP* |
| MAX2769EW | -40°C to +85°C | Dice (In Wafer Form) |
Electrical Characteristics
(MAX2769 EV kit, VCC = 2.7V to 3.3V, TA = -40°C to +85°C, PGM = GND. Registers are set to the default power-up states. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 1)
| PARAMETER | CONDITIONS | MIN | TYP | MAX | UNITS |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 2.85 | 3.3 | V | |
| Supply Current | Default mode, LNA1 is active (Note 2) | 15 | 18 | 22 | |
| Default mode, LNA2 is active (Note 2) Idle Mode™, IDLE = low | 12 | 15 1.5 | 19 | mA | |
| Shutdown mode, SHDN = low | 20 | μA | |||
| Voltage Drop at ANTBIAS from VCCRF | Sourcing 20mA at ANTBIAS | 0.2 | V | ||
| S hor t- C i r cui t P r otecti on C ur r ent at AN TBIAS | AN TBIASi s shor tedto g r ound | 57 | mA | ||
| Acti ve Antenna D etecti on C ur r ent | To asser t l og i c- hi g h at AN TFLAG | 1.1 | mA | ||
| DIGITAL INPUT AND OUTPUT | |||||
| Digital Input Logic-High | Measure at the SHDN pin | 1.5 | V | ||
| Digital Input Logic-Low | Measure at the SHDN pin | 0.4 | V |
AC ELECTRICAL CHARACTERISTICS
(MAX2769 EV kit, VCC = 2.7V to 3.3V, TA = -40°C to +85°C, PGM = GND. Registers are set to the default power-up states. LNA input is driven from a 50Ω source. All RF measurements are done in the analog output mode with ADC bypassed. PGA gain is set to 51dB gain by serial-interface word GAININ = 111010. Maximum IF output load is not to exceed 10kΩ || 7.5pF on each pin. Typical values are at VCC = 2.85V and TA = +25°C, unless otherwise noted.) (Note 1)
| PARAMETER | CONDITIONS | MIN | TYP | MAX | UNITS |
|---|---|---|---|---|---|
| CASCADED RF PERFORMANCE | |||||
| RF Frequency | L1 band LNA1 input active, default mode (Note 3) | 1575.42 1.4 | MHz | ||
| Noise Figure | LNA2 input active, default mode (Note 3) Measured at the mixer input | 2.7 10.3 | dB | ||
| Out-of-Band 3rd-Order Input Intercept Point | Measured at the mixer input (Note 4) | -7 | dBm | ||
| In-Band Mixer Input Referred 1dB Compression Point | Measured at the mixer input | -85 | dBm | ||
| Mixer Input Return Loss | 10 | dB | |||
| Image Rejection | LO leakage | 25 -101 | dB | ||
| Spurs at LNA1 Input | Reference harmonics leakage | -103 | dBm | ||
| Maximum Voltage Gain | Measured from the mixer to the baseband analog output | 91 | 96 | 103 | dB |
| Variable Gain Range | 55 | 59 | dB | ||
| FILTER RESPONSE | |||||
| Passband Center Frequency | FBW = 00 | 4 2.5 | MHz | ||
| Passband 3dB Bandwidth | FBW = 10 FBW = 01 | 4.2 8 | MHz | ||
| Lowpass 3dB Bandwidth | FBW = 11 | 9 | MHz | ||
| 3rd-order filter, bandwidth =2.5MHz, measured at 4MHz offset | 30 | dB | |||
| Stopband Attenuation | 5th-order filter, bandwidth =2.5MHz, measured at 4MHz offset | 41 | 49.5 | ||
| LNA | |||||
| LNA1 INPUT | |||||
| Power Gain | 19 | dB | |||
| Noise Figure | 0.83 | dB | |||
| Input IP3 | (Note 5) | -1.1 | dBm | ||
| Output Return Loss | 10 | dB | |||
| Intput Return Loss | 8 | dB | |||
| LNA2 INPUT | |||||
| Power Gain | 13 | dB | |||
| Noise Figure | 1.14 | dB | |||
| Input IP3 | (Note 5) | 1 | dBm | ||
| Output Return Loss | 19 | dB | |||
| Input Return Loss | 11 | dB |
Absolute Maximum Ratings
| PART | TEMP RANGE | PIN-PACKAGE |
|---|---|---|
| MAX2769ETI+ | -40°C to +85°C | 28 Thin QFN-EP* |
| MAX2769EW | -40°C to +85°C | Dice (In Wafer Form) |
| PART | TEMP RANGE | PIN-PACKAGE |
|---|---|---|
| MAX2769ETI+ | -40°C to +85°C | 28 Thin QFN-EP* |
| MAX2769EW | -40°C to +85°C | Dice (In Wafer Form) |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| MAX2769E/W | Analog Devices Inc./Maxim Integrated | — |
| MAX2769ETI | Analog Devices Inc./Maxim Integrated | — |
| MAX2769ETI+ | Analog Devices Inc./Maxim Integrated | 28-WFQFN Exposed Pad |
| MAX2769EW | Analog Devices Inc./Maxim Integrated | — |
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