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參數資料
| 型號： | U2305B |
| 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： | 1/8頁 |
| 文件大小： | 200K |
| 代理商： | U2305B |
U2305B
TELEFUNKEN Semiconductors
Rev. A1, 10-Sep-96
1 (8)
Preliminary Information
VHF/ UHF-Tuner-IC
Description
This tuner IC requires a power supply of 5 V and performs
the function of three separate oscillators an mixers,
SAWF-driver, L.O.-output and tri-state band switch.
This tuner IC is decigned for high performance tuners for
TV, VCR and PCs.
Features
5 V supply voltage
Frequency range from 48 to 860 MHz
Band A: balanced high impedance mixer input and
amplitude controlled oscillator
Band B + C: balanced low impedance mixer input and
symmetrical oscillator
Balanced L. O.-outputs for prescalers or PLL
SAW filter driver with low impedance output
Voltage regulator for stable operating characteristics
ESD protection on all pins except oscillator pins and
RF-inputs
Benefits
The integration of 3 bands and the small SSO28
package allows to design very small and economical
3-band tuners with high performance.
Block Diagram
2
8 10 9 11
4
6
5
7
19
3
1
Osc. A
Osc. B
Osc. C
Band-Switch
Voltage-
Stabilizer
12
27
28
L.O.
17
18
Mixer-Output
SAW-Driver
13
14
Band C
RF
Band B
Band A
25
24
23
22
26
21
20
16 15
12504
Figure 1. Block diagram
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相關代理商/技術參數 |
參數描述 |
|---|---|
| U2305B-AFSG3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:VHF/ UHF-Tuner-IC |
| U2-307 | 制造商:OTTO Engineering Inc 功能描述:U2-041 EXCEPT USED |
| U2-308 | 制造商:OTTO Engineering Inc 功能描述:U2 FITTING/CONN |
| U2309B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:VHF/ UHF-Tuner-IC |
| U231 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:N-CHANNEL JFET |
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