High-Performance Digital Radio Tuner Incorporates Fast and Accurate RSSI Function
The MAX2172 direct-conversion to low-IF tuner is designed for digital audio broadcast (DAB) and terrestrial digital multimedia broadcast (T-DMB) applications, covering an input frequency range of 168MHz to 240MHz (VHF-III), 1452MHz to 1492MHz (L-band), and also 87MHz to 108MHz (FM). The MAX2172 achieves a high level of component integration, allowing lowpower, tuner-on-board designs. The direct-conversion to low-IF architecture eliminates the need for an IF-SAW filter while providing a balanced 2.048MHz center frequency baseband output to the demodulator. The MAX2172 provides a buffered reference clock at the crystal frequency. A sigma-delta fractional-N synthesizer is incorporated to optimize both close-in and wideband phase noise performances for OFDM applications where sensitivity to both 1kHz phase noise and wideband phase noise related to strong adjacents can be a problem. The MAX2172 is available in a 40-pin thin QFN package (6mm x 6mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.
Part Number | Ref. Clock Freq. (MHz) | IF Output Freq. (MHz) | Noise Figure (dB) | VSUPPLY (V) | ISUPPLY (mA) | Applications | Solutions | Band/ Freq. (MHz) | Footprint (mm x mm) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|---|---|---|---|
typ | See Notes | ||||||||||
MAX2172 | 24.576 | 2.048 | 2.9 | 2.7 to 3.5 | 61 | DAB FM T-DMB | Automotive Consumer | 87 to 108 168 to 240 1452 to 1492 | 6.0 x 6.0 | TQFN/40 | $3.92 @1k |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
---|---|---|---|---|---|
MAX2172ETL+ | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL+C8S | No Longer Available | MAX2173ETL+T | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free |
MAX2172ETL+T | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+ | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+CBM | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+CDF | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+CDG | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+T | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+TCBM | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
MAX2172ETL/V+TCDF | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX2172ETL/V+TCDG | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free |