U4254BM-AFP
| Model | U4254BM-AFP |
| Description | Low-Noise AM/FM Antenna Impedance Matching IC |
| PDF file | Total 12 pages (File size: 160K) |
| Chip Manufacturer | TEMIC |
U4254BM
Low-Noise AM/FM Antenna Impedance Matching IC
Description
The U4254BM is an integrated low-noise AM/FM
antenna impedance matching circuit in BICMOS
technology. The device is designed in particular for car
application and is suitable for windscreen and roof
antennas.
Features
D
D
D
D
High dynamic range for AM and FM
Integrated AGC for FM
High intercept point 3rd order for FM
FM amplifier adjustable to various cable impedance
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High intercept point 2nd order for AM
D
Low noise output voltage
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Low power consumption
Block Diagram
FMIN
GND1
FMGAIN
AGC
VS
1
2
3
4
14
5
I
AGC
FM
15
FMOUT
AGC
13
AGCADJ
VREF2
VREF
12
VREF1
11
AMIN
8
AMOUT1
AMOUT
AM
7
10
13932
GND2
Figure 1. Block diagram
TELEFUNKEN Semiconductors
Rev. A1, 08-Jul-97
1 (12)
Related PDFs
| Model | Description | Manufacturer | Operation |
|---|---|---|---|
 U4254BM-AFPG3
|
Low-Noise AM/FM Antenna Impedance Matching IC | TEMIC | Preview |
