Highest Performance, Most Integrated Triple-Band Receivers for T-DMB/DAB/FM Digital Radios
The MAX2170/MAX2171 direct-conversion to low-IF tuners are 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 MAX2170/MAX2171 achieve a high level of component integration, allowing low-power, 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 MAX2170 provides a buffered reference clock at the crystal frequency, while the MAX2171 outputs a reference at 1/3rd of 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 MAX2170/MAX2171 are available in a 40-pin thin QFN package (6mm x 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.
Key Features
| Applications/Uses
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| 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 | ||||||||||
| MAX2170 | 24.576 | 2.048 | 2.9 | 2.7 to 3.5 | 62 | DAB T-DMB | Automotive Consumer | 168 to 240 1452 to 1492 | 6.0 x 6.0 | TQFN/40 | $3.48 @1k |
| MAX2171 | 3 | 87 to 108 168 to 240 1452 to 1492 | TQFN/40 | ||||||||
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX2170E/WGB1 | No Longer Available | WAFER; | -40°C to +85°C | See data sheet | |
| MAX2170ETL+ | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL+B4B | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL+CDQ | No Longer Available | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL+T | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL+TCDQ | No Longer Available | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL/V+ | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free | |
| MAX2170ETL/V+T | Active: Data sheet on request only | TQFN,;40 pin;37.2 mm² | -40°C to +85°C | Lead Free |
