ATR2732-PBPW Atmel, ATR2732-PBPW Datasheet - Page 5

• Manufacturer Part Number: ATR2732-PBPW
• Description: IC INT ONE-CHIP FRONT END 64QFN
• Manufacturer: Atmel

Specifications of ATR2732-PBPW

• Rf Type: DAB, Broadcast Radio
• Frequency: 1.452GHz ~ 1.492GHz, 167MHz ~ 240GHz
• Features: Fractional PLL for VHF
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4918AS–DAB–03/06
This filter has an automatic tuner adjustment; that is, the tuning-voltage-generation block adjusts
the pass band of this filter to the desired frequency. After passing this filter, the RF signal is
down-mixed to a fixed IF frequency of 38.912 MHz. The IF signal is amplified and passed to a
SAW filter (5). The first IF variable-gain amplifier is followed by an IF filter at position (6). This fil-
ter is used as an anti-alias-filter. Finally, the DAB signal is amplified using the 2nd IF amplifier.
The signal leaves the front-end IC at (7), giving the signal to the DAB baseband IC.
Figure 3-1.
3)
1)
2)
Functional Block Diagram with Labelled Inputs and Outputs
VCO
VCO
frac. PLL
L-band
PLL
VHF
4)
Vtune
Gain
gen.
cntl
ATR2732 [Preliminary]
5)
A
D
SPI interface
Control unit
RSSI
6)
PWR
cntl
7)
5