ATR2732-PBPW Atmel, ATR2732-PBPW Datasheet
ATR2732-PBPW
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ATR2732-PBPW Summary of contents
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... The ATR2732 is a front-end monolithic integrated circuit, manufactured using Atmel’s silicon-germanium BiCMOS process (SiGMOS). The ATR2732 carries out all functions of RF and IF processing, as well as the clock-signal generation for these functions. Therefore, there is an integrated fractional PLL, which, equivalent to most of the other functions, can be controlled via an external digital bus ...
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... L-band LNVGA – 11 LNALO (Differential) output for L-band LNVGA 12 AGCRF Connection for time-constant capacitor of RF AGC (LNVGAs, external PIN diode) 13 GNDLNA Ground for LNVGAs 14 LNALIN+ (Differential) input for L-band LNVGA – 15 LNALIN (Differential) input for L-band LNVGA ATR2732 [Preliminary QFN64 ...
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... MOSI Inputs and outputs of serial bus (refer to serial bus protocol) 53 NSS Inputs and outputs of serial bus (refer to serial bus protocol) 54 SCK Inputs and outputs of serial bus (refer to serial bus protocol) 4918AS–DAB–03/06 ATR2732 [Preliminary] 3 ...
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... Ground 3. Functional Description The ATR2732 front-end IC was developed as a tuner IC for DAB reception. It was designed for operation in L-band (1452 MHz to 1492 MHz) and VHF BIII (174 MHz to 240 MHz). The front end contains gain-controlled LNAs, an L-band mixer with a corresponding PLL, and a VHF-band mixer with a fractional PLL ...
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... The signal leaves the front-end IC at (7), giving the signal to the DAB baseband IC. Figure 3-1. 4918AS–DAB–03/06 Functional Block Diagram with Labelled Inputs and Outputs 4) 3) Gain 1) cntl 2) Vtune gen. L-band VCO PLL VHF VCO frac. PLL ATR2732 [Preliminary PWR RSSI D cntl Control unit SPI interface 7) 5 ...
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... AGC in General There are three AGCs in the ATR2732, one for the RF signals (around the LNAs) (1) and (3), one for the very beginning of the IF path (mainly VHF mixer), and one for the IF amplifiers (5) down to the output to baseband (7). In these AGCs, the output signals of the relevant blocks are amplified, weakly band-pass fil- tered, rectified, and, finally, low-pass filtered ...
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... RSSI Measurement The ATR2732 offers the option of getting information about the field strength. This is not an absolute real-field-strength value, but an indication of in which range the field strength is avail- able. This information can be obtained from the 8 low bits of the status register. ...
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... IF frequency of 38.912 MHz for VHF or converted L-band signal is done by an additional on-chip VCO using an internal fractional-N PLL. Due to the digital tuning option of the reference frequency, the ATR2732 is able to support the single reference clock design if the baseband can support such a feature (as the ATR2740 does) ...
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... Some things need to be taken into account when programming the ATR2732 via the SPI inter- face: the data packet needs to be properly configured to write into the 14 different registers. In principle, there are 16 registers. Fourteen of them are used to control the ATR2732. The two others, registers 15 and 16, are Test Mode Registers. All these registers need to be reset by writing “ ...
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... Parameters Supply voltage Operating case temperature Storage temperature Notes: 1. The part may not survive all maximums applied simultaneously! 5. Thermal Resistance Parameters Junction, case 6. Operating Range Parameters Supply voltage Ambient temperature ATR2732 [Preliminary] 10 Symbol Value V 4 –40 to +100 c T –40 to +150 stg ...
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... Type means 100% tested 100% correlation tested Characterized on samples Design parameter 4918AS–DAB–03/06 = +3.3V +25°C, 50 input match CC amb Pin Symbol leak V BUSH V BUSL per cet t sud t hda ATR2732 [Preliminary] Min. Typ. Max. Unit 3.0 3 µA 1 µ 150 mA 185 mA 140 – 0. ...
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... Frequency range 8 dB SNR at IF output 9.4 Sensitivity to baseband, measured with sample application Maximum input power 9.5 level *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter ATR2732 [Preliminary +3.3V +25°C, 50 input match CC amb Pin Symbol f Rfin f Rfin Min ...
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... Ordering Information Extended Type Number ATR2732-PBQW ATR2732-PBPW 9. Package Information Package: VQFN_ 9 x 9_64L Exposed pad 5.8 x 5.8 Dimensions in mm Not indicated tolerances ±0.05 Top 64 1 Pin 1 identification 16 Drawing-No.: 6.543-5119.01-4 Issue: 1; 31.05.05 4918AS–DAB–03/06 Package Remarks QFN64 9 mm QFN64 0.2 0.9 ± ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...