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參數資料
| 型號： | U2320B-FLG3 |
| 英文描述： | VHF/UHF Tuner-IC |
| 中文描述： | 甚高頻/超高頻調諧器集成電路 |
| 文件頁數： | 4/7頁 |
| 文件大小： | 159K |
| 代理商： | U2320B-FLG3 |
U2320B
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
4 (7)
Test and Principle Application Circuit
Bd. I/III
Hybrid 0 / 180 degree
with 50 ohms Z(in)
and 100 ohms (2x50) Z(out)
Band B
UHF
Band A
VHF
I/P
I/P
180
15p
10n
VS
SC 33.4 MHz
1n 1n
L6
IF : PC 38.9 MHz
1n 1n 1n
1n
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
The output voltage of the
IF is calculated back to the
primary coil of L5
IF–Out
O/P
1n
1n
L5
15p
L3
1p0
1p0
1p0
1p0
2p2
18k
1
1k5
2p2
L1
BB515
820p
BA282
BB619
68p
18k
L2
L4
BB515
8p2
18k
100p
2k2
1n
18k
USW
VT
5
9
13
17
o
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”.
PCB for the R
thJA
-Measurement
95 10715
Figure 3. PCB for the R
thJA
-measurement
35 m one-sided Cu-coated PCB,
40 mm x 40 mm x 1.5 mm.
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