U2510B-M
| Model | U2510B-M |
| Description | All-Band AM/FM Receiver and Audio Amplifier |
| PDF file | Total 15 pages (File size: 266K) |
| Chip Manufacturer | ATMEL |
U2510B
Terminal Voltages
Test circuit: V
in
= 0
Voltage/V
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Mute voltage (R
3
= 0)
FM discriminator
Negative feedback
Volume control input (S
4
= A)
AM oscillator
FM AFC
FM oscillator
V
Ref
FM RF tank
AM input
FM AGC
FM input
Front end ground
AM/FM IF output
Mode control switch
AM IF input
FM IF input
Treble control input (S
5
= A)
LED
IF ground
AFC switch (S
3
= off)
AGC (AM)/AFC (FM)
Detector output
AF input
Ripple filter
Supply voltage
AF output
AF ground
Symbol
V
1
V
2
V
3
V
4
V
5
V
6
V
7
V
8
V
9
V
10
V
11
V
12
V
13
V
14
V
15
V
16
V
17
V
18
V
19
V
20
V
21
V
22
V
23
V
24
V
25
V
26
V
27
V
28
AM
–
–
1.2
2.4
2.4
–
–
2.4
–
2.4
–
–
2.9
0
0
–
2.4
0
1.2
1.5
1.5
1.5
2.7
3.0
1.2
0
V
S
= 3 V
FM
1.6
1.0
1.2
2.4
–
1.9
2.4
2.4
2.4
–
0
1.4
–
2.7
–
–
0.7
2.4
0
1.2
1.2
1.2
1.5
2.7
3.0
1.2
0
TAPE
–
–
1.2
2.4
–
–
–
2.4
2.4
–
–
–
–
–
2.9
–
–
2.4
0
1.2
–
–
1.5
2.7
3.0
1.2
0
AM
–
–
2.6
2.4
2.4
–
–
2.4
–
–
–
–
–
5.9
0
0
–
2.4
0
1.2
1.5
1.5
1.5
5.3
6.0
2.6
0
V
S
= 6 V
FM
1.6
1.0
2.6
2.4
–
1.9
2.4
2.4
2.4
2.4
0
1.4
–
5.7
–
–
0.7
2.4
0
1.2
1.2
1.2
1.5
5.3
6.0
2.6
0
TAPE
–
–
2.6
2.4
–
–
–
2.4
–
–
–
–
–
–
5.7
–
–
2.4
0
1.2
–
–
1.5
5.3
6.0
2.6
0
Rev. A3, 23-Feb-01
3 (15)
