U2730B-N
| Model | U2730B-N |
| Description | L-band Down-converter for DAB Receivers |
| PDF file | Total 17 pages (File size: 202K) |
| Chip Manufacturer | ATMEL |
U2730B-N
Equivalent Circuits
Figure 6.
AGC Control Circuit
Gain-
controlled
mixer
Gain-
controlled
amplifier
V
Ref1
550 MHz
IF
output
60 MHz
V
Ref2
AGC
TH
R
th
Figure 7.
VCO Circuit
V
Tune
47k
BBY51
V
CC
1.8 p
15 p
Resonator
1p
VREF
TANK
100 p
Resonator: Ceramic coaxial resonator
Murata 3 x 3 mm, 1.6 GHz
DRR030 KE1R600TC
13
4719A–DAB–05/03
