U2320B
| Model | U2320B |
| Description | VHF/UHF Tuner-IC |
| PDF file | Total 7 pages (File size: 153K) |
| Chip Manufacturer | TEMIC |
U2320B
Test and Principle Application Circuit
Hybrid 0 / 180 degree
with 50 ohms Z(in)
and 100 ohms (2x50) Z(out)
VS
15p
1n 1n 1n 1n
10n
L6
1n 1n
Band B
UHF
Band A
VHF
I/P
I/P
180
o
Air Coils 0.6 mm
enamelled copper wire
L1 2 turns 2.5 mm dia
L2 8 turns 3.5 mm dia
L3 3 turns 2.5 mm dia
L4 3 turns 2.5 mm dia
TOKO–Coils
L5 12+2 turns
L6 6+6 turns
2p2
Bd. I/III
1k5
BA282
IF : PC 38.9 MHz
SC 33.4 MHz
The output voltage of the
IF is calculated back to the
primary coil of L5
17
13
1
2p2
BB515
1p0
5
1p0
1p0
1p0
9
1n
15p
L5
IF–Out
O/P
L1
18k
BB619
L3
2k2
L4
100p
1n
USW
18k
1n
L2
820p
68p
18k
VT
8p2
18k
BB515
96 11674
Figure 2. Test and principle application circuit
Note:
All component values must be determined application specific. For more detailed information pls. request the
application note “Semiconductors for TV-Tuners and The New EasyLink Concept”.
35
m
m one-sided Cu-coated PCB,
40 mm x 40 mm x 1.5 mm.
PCB for the R
thJA
-Measurement
95 10715
Figure 3. PCB for the R
thJA
-measurement
4 (7)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
Related PDFs
| Model | Description | Manufacturer | Operation |
|---|---|---|---|
 U2320B-FLG3
|
VHF/UHF Tuner-IC | TEMIC | Preview |
