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參數(shù)資料
| 型號(hào)： | U2510B-MT |
| 廠商： | Atmel Corp. |
| 英文描述： | All-Band AM/FM Receiver and Audio Amplifier |
| 中文描述： | 全波段的AM / FM接收器和音頻放大器 |
| 文件頁(yè)數(shù)： | 9/15頁(yè) |
| 文件大小： | 262K |
| 代理商： | U2510B-MT |
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U2510B
Rev. A3, 23-Feb-01
9 (15)
Test Circuit
14
15
16
17
18
U2510B
19
20
21
22
13
12
11
10
9
8
7
23
24
25
26
27
28
6
5
4
3
2
1
4.7
μ
F
18 pF
C
24
100
pF
C
25
C
8
68 nF
C
23
150 k
R
3
S
6
A
B
C
T
4
S
4
A
B
S
5
A
B
T
2
22 pF
C
5
18 pF
C
4
2.2 k
R
4
L
2
22 pF
C
3
L
1
43 pF
C
2
150
μ
H
L
A
5.6 pF
C
19
4.7
μ
F
C
7
C
6
22 nF
22 nF
C
20
455 kHz
CF
1
AM IFT
B A
B
A
S
1
CF
2
10.7 MHz
150
R
5
C
24
100 nF
C
25
R
6
100
10 nF
R
7
75
R
8
50
T
1
V
i1
(50
)
V
i2
(50
)
C
22
10 nF
LED
D
1
A
B
off
S
3
C
9
10 nF
R
1
390
R
2
10 k
FM
AM
Tape
S
2
C
21
10 nF
3 k
R
9
V
iIF
I
LED
100 nF 10
μ
F
C
14
C
10
10 nF
C
11
V
D
V
i3
C
12
470
μ
F
C
13
10
μ
F
8
/
2 W
R
L
V
S
V
o
GND
220
μ
F
C
15
V
mute
13913
Figure 16. Test circuit
Application
General
The U2510B is a bipolar monolithic IC for use in radio
sets, for example, headphone receivers, radio recorders
and clock radios. The IC contains all AM, FM, AF and
switching function blocks necessary to construct these
kinds of radio receivers using only few components
around the IC. In the design, special efforts were made to
get good performance for all AM bands (short and long
wave).
The implementation of enhanced functions (options)
makes it possible to improve the radio’s performance and
to produce radios with interesting features. In this case
few (external) parts have to be changed or added. By
using all or some of the options offered by the U2510B
different types or classes of radios can be designed to the
customer’s requirements with the same IC.
One of the general advantages of using the U2510B is the
fact that all receiver functions (including the options) are
integrated and tested on a system level. Therefore, two
additional cost-savings are achieved by:
1.
Shorter development time through less technical
problems and
2.
Higher reproductivity and low reject level in the set
production line.
Another advantage, due to the technology of the
U2510B, is the wide operating voltage range, espe-
cially the upper limit (13 V). This feature allows the
use of soft power supply for line powered radios
which can also reduce the set’s total cost.
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