Product category: Communications ICs (Wireless)
News Release from: Maxim Integrated Products | Subject: MAX2170 and MAX2171
Edited by the Electronicstalk Editorial Team on 15 May 2007
Tuners consolidate digital radio and TV
reception
RF tuner ICs receive digital audio broadcast (DAB) and terrestrial digital multimedia broadcast (T-DMB) with a minimum of external components.
Maxim Integrated Products has released the MAX2170 and MAX2171 RF tuners for triple-band, dual-mode mobile TV and digital radio The devices receive VHF band-III and L-band broadcasts, as well as FM
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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Each device is designed to receive digital audio broadcast (DAB) and terrestrial digital multimedia broadcast (T-DMB) with a minimum of external components.
The low-noise, L-band front-end (3dB noise figure) eliminates the need for an external low-noise amplifier circuit, reducing both cost and size.
When tuning VHF frequencies, the on-chip tracking filter rejects out-of-band interference; this tracking filter also doubles as an FM band-select filter.
The MAX2170 and MAX2171 operate from a 2.7 to 3.3V supply and typically draw 150mW in L-band low-power mode.
The devices contain all necessary blocks to implement a low-IF TV/radio tuner, except a crystal and the (optional) L-band filtering required by some applications.
The devices achieve a sensitivity of -101dBm at L-band, -99dBm at VHF, and -109dBm at FM.
Both the MAX2170 and MAX2171 operate off of a 24.576MHz crystal.
The only difference between the MAX2170 and MAX2171 is the R-divider ratio of the frequency synthesiser.
The MAX2170 has a fixed divide-by-1 ratio, whereas the MAX2171 R-divider value is 3.
The MAX2170 and MAX2171 operate over the -40 to +85C temperature range and are available in 6 x 6mm, 40-pin QFN packages.
Prices start at US $6.00 (1000-up, FOB USA).
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